Unnamed: 0 int64 0 18.1k | language stringclasses 4
values | creator stringlengths 2 137 | title stringlengths 2 217 | subject stringclasses 15
values | keyword stringlengths 10 597 | identifier stringlengths 82 244 | description stringlengths 2 2.3k | date stringlengths 14 14 |
|---|---|---|---|---|---|---|---|---|
0 | ['eng'] | ['Razamat, S S'] | ['Marginal Deformations of N=4 SYM and of its Supersymmetric Orbifold Descendants'] | ['Particle Physics - Theory'] | ['Thesis', 'Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0204043'] | ['In this thesis exactly marginal deformations of field theories living on D3-branes at low energies are studied. These theories include N=4 supersymmetric Yang-Mills theory and theories obtained from it via the orbifolding procedure.'] | ['2002-04-05'] |
1 | ['eng'] | ['Galiautdinov, A A'] | ['Quantum theory of elementary processes'] | ['Particle Physics - Theory'] | ['Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0203263'] | ['In modern physics, one of the greatest divides is that between space-time and quantum fields, as the fiber bundle of the Standard Model indicates. However on the operational grounds the fields and space-time are not very different. To describe a field in an experimental region we have to assign coordinates to the poi... | ['2002-03-29'] |
2 | ['eng'] | ['Riccioni, F'] | ['Low-energy structure of six-dimensional open-string vacua'] | ['Particle Physics - Theory'] | ['Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0203157'] | ['This dissertation reviews some properties of the low-energy effective actions for six dimensional open-string models. The first chapter is a pedagogical introduction about supergravity theories. In the second chapter closed strings are analyzed, with particular emphasis on type IIB, whose orientifold projection, in o... | ['2002-03-19'] |
3 | ['por'] | ['Dos Santos, M A', 'Helayël-Neto, José A'] | ['Consistency of the Symplectic Projectors Method on Multidimensional Gauge Models'] | ['Particle Physics - Theory'] | ['Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0202078'] | ['In this paper we apply the Symplectic Projectors Method to gauge theories with second class constraints in various space-time dimensions. The conclusion is that this method is equivalent to the standard quantization methods. Although it suffers from some limitations since its applicability is restricted to some simpl... | ['2002-02-14'] |
4 | ['eng'] | ["D'Appollonio, G"] | ['Aspetti non perturbativi della Teoria delle Stringhe'] | ['Particle Physics - Theory'] | ['Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0111284'] | ["Unabridged version of the Thesis presented to the University of L' Aquila, in partial fulfillment of the requirements for the ``Laurea'' degree in Physics, October 1998. Work carried out at the University of L'Aquila and at the University of Rome ``Tor Vergata''."] | ['2001-12-03'] |
5 | ['eng'] | ['Emmenegger, N'] | ['Gauge Invariance and Gauge-Factor Group in Causal Yang-Mills Theory'] | ['Particle Physics - Theory'] | ['Thesis', 'Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0111272'] | ['In the present work the gauge invariance of causal Yang-Mills theory will be proven with the aid of the gauge-factor group. For that purpose it must be shown, that the operator valued distributions T_n and D_n(ret) occurring in the causal S-matrix construction can be written, after applying the gauge variation d_Q, a... | ['2001-11-30'] |
6 | ['eng'] | ['Mattsson, P'] | ['Integrable Quantum Field Theories, in the Bulk and with a Boundary'] | ['Particle Physics - Theory'] | ['Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0111261'] | ['This thesis considers massive field theories in 1+1 dimensions known as affine Toda quantum field theories. We first consider the boundary sine-Gordon model, deriving a complete picture of the boundary bound state structure for general integrable boundary conditions, and then more general ATFTs in the bulk, discoveri... | ['2001-11-29'] |
7 | ['eng'] | ['Brodsky, S J'] | ['The Heisenberg Matrix Formulation of Quantum Field Theory'] | ['Particle Physics - Theory'] | ['talk, Bamberg 2001/09/26', 'Hamiltonian formalism, light front', 'quantization, light cone', 'discrete', 'hadron, wave function', 'partition function', 'quantum chromodynamics', 'lepton nucleon, deep inelastic scattering', 'nucleon, structure function', 'shadowing'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0111241'] | ["Heisenberg's matrix formulation of quantum mechanics can be generalized to relativistic systems by evolving in light-front time tau = t+z/c. The spectrum and wavefunctions of bound states, such as hadrons in quantum chromodynamics, can be obtained from matrix diagonalization of the light-front Hamiltonian on a finite... | ['2001-11-28'] |
8 | ['eng'] | ['Forgács, Péter'] | ['A 2D integrable axion model and Target space duality'] | ['Particle Physics - Theory'] | ['talk, Budapest 2000/08/19'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0111124'] | ['A review is given on the recently proposed two dimensional axion model (O(3) sigma-model with a dynamical Hopf-term) and the T-duality relating it to the SU(2)xU(1) symmetric anisotropic sigma-model. Strong evidence is presented for the correctness of the proposed S-matrix for both models comparing perturbative and T... | ['2001-11-15'] |
9 | ['eng'] | ['Vázquez-Poritz, J F', 'Cvetic, M'] | ['Branes and Brane Worlds in M-Theory'] | ['Particle Physics - Theory'] | ['Thesis', '- Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0110084'] | ['A new class of warped Anti-de Sitter solutions is found, arising as the near-horizon region of various semi-localized brane intersections. The dual gauge theories of AdS in warped spacetimes have reduced supersymmetry, which is pertinent to the study of viable supersymmetric extensions of the Standard Model. In addit... | ['2001-10-10'] |
10 | ['eng'] | ['Soroka, V A'] | ['Supersymmetry and the Odd Poisson Bracket'] | ['Particle Physics - Theory'] | ['talk, Minneapolis 2000/10/13'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0204018'] | ["Some applications of the odd Poisson bracket developed by Kharkov's theorists are represented, including the reformulation of classical Hamiltonian dynamics, the description of hydrodynamics as a Hamilton system by means of the odd bracket and the dynamics formulation with the Grassmann-odd Lagrangian. Quantum repres... | ['2002-04-03'] |
11 | ['eng'] | ['Boulton, L S', 'Moral, M P G', 'Martin, I', 'Restuccia, A'] | ['On the spectrum of a matrix model for the D=11 supermembrane compactified on a torus with non-trivial winding'] | ['Particle Physics - Theory'] | ['membrane model', 'supersymmetry', 'dimension, 11', 'matrix model', 'Hamiltonian formalism', 'spontaneous compactification, torus', 'topology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109153'] | ['The spectrum of the Hamiltonian of the double compactified D=11 supermembrane with non-trivial central charge or equivalently the non-commutative symplectic super Maxwell theory is analyzed. In distinction to what occurs for the D=11 supermembrane in Minkowski target space where the bosonic potential presents string-... | ['2001-09-24'] |
12 | ['eng'] | ['Acharya, B', 'Witten, Edward'] | ['Chiral Fermions from Manifolds of $G_2$ Holonomy'] | ['Particle Physics - Theory'] | ['M-theory', 'spontaneous compactification', 'holonomy, G(2)', 'string model, heterotic', 'fermion, chiral', 'group theory, representation', 'twistor', 'geometry, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109152'] | ['M-theory compactification on a manifold X of $G_2$ holonomy can give chiral fermions in four dimensions only if X is singular. A number of examples of conical singularities that give chiral fermions are known; the present paper is devoted to describing some additional examples. In some of them, the physics can be det... | ['2001-09-24'] |
13 | ['eng'] | ['Chen, C M', 'Galtsov, D V', 'Sharakin, S A'] | ['Inverse dualisation and non-local dualities between Einstein gravity and supergravities'] | ['Particle Physics - Theory'] | ['gravitation', 'supergravity', 'duality, nonlocal', 'space-time, higher-dimensional', 'Kaluza-Klein model', 'spinor, Killing', 'membrane model, p-brane', 'dimensional reduction'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109151'] | ['We investigate non-local dualities between suitably compactified higher-dimensional Einstein gravity and supergravities which can be revealed if one reinterprets the dualised Kaluza-Klein two-forms in $D>4$ as antisymmetric forms belonging to supergravities. We find several examples of such a correspondence including... | ['2001-09-24'] |
14 | ['eng'] | ['Parnachev, A', 'Sahakyan, D A'] | ['Some remarks on D-branes in AdS_3'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'space-time, anti-de Sitter', 'dimension, 3', 'string model', 'partition function', 'field theory, conformal', 'dimension, 2', 'Knizhnik-Zamolodchikov equation', 'bootstrap', 'coset space, SL(2,R)/U(1)', 'Wess-Zumino-Witten model', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109150'] | ['We investigate the relation between the algebraic construction of boundary states in AdS_3 and the target space analysis of D-branes and show the consistency of the two descriptions. We compute, in the semiclassical regime, the overlap of a localized closed string state with boundary states and identify the latter wi... | ['2001-09-24'] |
15 | ['eng'] | ['Motl, L'] | ['Nonperturbative Formulations of Superstring Theory'] | ['Particle Physics - Theory'] | ['thesis', 'matrix model', 'M-theory', 'string model, heterotic', 'supersymmetry', 'nonperturbative', 'membrane model, p-brane', 'p-brane, 5', 'spontaneous compactification', 'any-dimensional', 'gauge field theory, Yang-Mills', 'moduli space', 'field theory, conformal', 'orbifold', 'astrophysics, model', 'geometry, alg... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109149'] | ["After a short introduction to Matrix theory, we explain how can one generalize matrix models to describe toroidal compactifications of M-theory and the heterotic vacua with 16 supercharges. This allows us, for the first time in history, to derive the conventional perturbative type IIA string theory known in the 80s w... | ['2001-09-24'] |
16 | ['eng'] | ['Van Baal, P'] | ['Reflections on Topology - Viewpoints on Abelian Projections'] | ['Particle Physics - Theory'] | ['talk, Trento 2001/09/03', 'talk, Cairns 2001/07/09', 'gauge field theory, SU(2)', 'field theory, scalar', 'sigma model, nonlinear', 'soliton', 'defect, topological', 'charge, topological', 'caloron', 'monopole', 'gauge fixing', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109148'] | ['This talk discusses two topological features in non-abelian gauge theories, related by the notion of abelian projection and the Hopf invariant. Minimising the energy of the non-linear sigma model with a Skyrme-like term (the Faddeev-Niemi model), can be identified with a non-linear maximal abelian gauge fixing of the... | ['2001-09-24'] |
17 | ['eng'] | ['Amorim, R', 'Farias, F A'] | ['Hamiltonian formulation of nonAbelian noncommutative gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'differential geometry, noncommutative', 'Hamiltonian formalism', 'constraint', 'commutation relations', 'invariance, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109146'] | ['We implement the Hamiltonian treatment of a nonAbelian noncommutative gauge theory, considering with some detail the algebraic structure of the noncommutative symmetry group. The first class constraints and Hamiltonian are obtained and their algebra derived, as well as the form of the gauge invariance they impose on ... | ['2001-09-24'] |
18 | ['eng'] | ['Wu, N'] | ['Gauge Theory of Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'gauge field theory, space-time', 'field equations', 'renormalization', 'perturbation theory, higher-order', 'field theory, scalar', 'field theory, Dirac', 'field theory, vector', 'quantization, path integral'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109145'] | ['The quantum gravity is formulated based on principle of local gauge invariance. The model discussed in this paper has local gravitational gauge symmetry and gravitational field appears as gauge field. The problems on quantization and renormalization of the theory are also discussed in this paper.'] | ['2001-09-24'] |
19 | ['eng'] | ['Motoyui, N', 'Tominaga, S', 'Yamada, M'] | ['Monte-Carlo Simulation of Domain-Wall Network in Two-dimensional Extended Supersymmetric Theory'] | ['Particle Physics - Theory'] | ['talk, Beijing 2001/05/21', 'domain wall, network', 'supersymmetry', 'dimension, 2', 'soliton, mass', 'Hamilton-Jacobi equation', 'Wess-Zumino model', 'numerical calculations, Monte Carlo'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109144'] | ["We will show that 2-dimensional N=2-extended supersymmetric theory can have solitonic solution using the Hamilton-Jacobi method of classical mechanics. Then it is shown that the Bogomol'nyi mass bound is saturated by these solutions and triangular mass inequality is satisfied. At the end, we will mention domain-wall ... | ['2001-09-24'] |
20 | ['eng'] | ['Aste, A'] | ["Comment on 'Another form of the Klein-Gordon equation'"] | ['Particle Physics - Theory'] | ['Klein-Gordon equation', 'field theory, relativistic', 'Dirac equation', 'propagator'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109143'] | ['It is shown that the alternative Klein-Gordon equation with positive definite probability density proposed in a letter by M.D. Kostin does not meet the requirements of relativistic (quantum) field theory and therefore does not allow for a meaningful physical interpretation.'] | ['2001-09-24'] |
21 | ['eng'] | ['Shvedov, O Y'] | ['Renormalization of Poincare Transformations in Hamiltonian Semiclassical Field Theory'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'field theory, scalar', 'quantization, 2', 'Hamiltonian formalism', 'approximation, quasiclassical', 'transformation, Poincare', 'phase space, Fock space', 'renormalization', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109142'] | ['Semiclassical Hamiltonian field theory is investigated from the axiomatic point of view. A notion of a semiclassical state is introduced. An "elementary" semiclassical state is specified by a set of classical field configuration and quantum state in this external field. "Composed" semiclassical states viewed as forma... | ['2001-09-24'] |
22 | ['eng'] | ['Cherkis, S A', 'Kapustin, A A'] | ['New Hyperkahler Metrics from Periodic Monopoles'] | ['Particle Physics - Theory'] | ['magnetic monopole', 'moduli space', 'space-time, asymptotic behavior', 'gravitation, instanton', 'dyon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109141'] | ['Relative moduli spaces of periodic monopoles provide novel examples of Asymptotically Locally Flat hyperkahler manifolds. By considering the interactions between well-separated periodic monopoles, we infer the asymptotic behavior of their metrics. When the monopole moduli space is four-dimensional, this construction ... | ['2001-09-24'] |
23 | ['eng'] | ['Ito, M'] | ['Various Types of Five Dimensional Warp Factor and Effective Planck Scale'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, scalar', 'dimension, 4', 'dimension, 5', 'membrane model, tension', 'field equations, solution'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109140'] | ['Based on the assumption that the warp factor of four dimensional spacetime and the one of fifth dimension are tied through a parameter $\\alpha$, we consider five dimensional gravity with a 3-brane coupled to a bulk scalar field. For arbitrary value of $\\alpha$, the form of the warp factor is implicitly determined b... | ['2001-09-24'] |
24 | ['eng'] | ['Chen, W J', 'Li, K', 'Naón, C M'] | ['Classical electromagnetic field theory in the presence of magnetic sources'] | ['Particle Physics - Theory'] | ['electromagnetic field, classical', 'Maxwell equation', 'dyon', 'duality', 'symmetry, SO(2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109139'] | ["Using two new well defined 4-dimensional potential vectors, we formulate the classical Maxwell's field theory in a form which has manifest Lorentz covariance and SO(2) duality symmetry in the presence of magnetic sources. We set up a consistent Lagrangian for the theory. Then from the action principle we get both Max... | ['2001-09-28'] |
25 | ['eng'] | ['De Risi, G', 'Gasperini, M'] | ['Low-energy graceful exit in anisotropic string cosmology backgrounds'] | ['Particle Physics - Theory'] | ['astrophysics, string', 'space-time, anisotropy', 'effective action', 'higher-dimensional', 'fluctuation, back reaction', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109137'] | ['We discuss the possibility of a smooth transition from the pre- to the post-big bang regime, in the context of the lowest-order string effective action (without higher-derivative corrections), taking into account with a phenomenological model of source the repulsive gravitational effects due to the back-reaction of t... | ['2001-09-28'] |
26 | ['eng'] | ['Barone-Adesi, V', 'Zerbini, S'] | ['Analytic continuation of the Hurwitz Zeta Function with physical application'] | ['Particle Physics - Theory'] | ['regularization, zeta function', 'path integral, determinant', 'operator, Dirac', 'analytic properties', 'pair production', 'effective Lagrangian'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109136'] | ['A new formula relating the analytic continuation ofthe Hurwitz zeta function to the Euler gamma function and a "Schwinger" type series is presented. In particular, the value of the derivative of the real part of the analytic continuation of the Hurwitz zeta function for even negative integers and the imaginary one fo... | ['2001-09-28'] |
27 | ['eng'] | ['Kar, S', 'Majumdar, P', 'Sen-Gupta, S', 'Sur, S'] | ['Cosmic optical activity from an inhomogeneous Kalb-Ramond field'] | ['Particle Physics - Theory'] | ['space-time, torsion', 'synchrotron radiation, polarization', 'field theory, tensor', 'axion', 'duality, transformation', 'electromagnetic field'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109135'] | ["The effects of introducing a harmonic spatial inhomogeneity into the Kalb-Ramond field, interacting with the Maxwell field according to a `string-inspired' proposal made in earlier work are investigated. We examine in particular the effects on the polarization of synchrotron radiation from cosmologically distant (i.e... | ['2001-09-28'] |
28 | ['eng'] | ['Hüffel, H'] | ['Quantizing Yang-Mills Theory on a 2-Point Space'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'space, discrete', 'quantization, Batalin-Vilkovisky', 'differential geometry, noncommutative', 'transformation, gauge', 'Gribov problem'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109134'] | ["We perform the Batalin-Vilkovisky quantization of Yang-Mills theory on a 2-point space, discussing the formulation of Connes-Lott as well as Connes' real spectral triple approach. Despite of the model's apparent simplicity the gauge structure reveals infinite reducibility and the gauge fixing is afflicted with the Gr... | ['2001-09-28'] |
29 | ['eng'] | ['Cai, R G'] | ['Gauss-Bonnet Black Holes in AdS Spaces'] | ['Particle Physics - Theory'] | ['black hole, topological', 'space-time, anti-de Sitter', 'thermodynamics', 'critical phenomena', 'Gauss-Bonnet term', 'horizon', 'dimension, >=4', 'astrophysics, fundamental constant', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109133'] | ['We study thermodynamic properties and phase structures of topological black holes in the Einstein theory with a Gauss-Bonnet term and a negative cosmological constant. The event horizon of these topological black holes can be an hypersurface with positive, zero or negative constant curvature. When the horizon is a ze... | ['2001-09-28'] |
30 | ['eng'] | ['Bars, Itzhak'] | ['Nonpertubative Effects of Extreme Localization in Noncommutative Geometry'] | ['Particle Physics - Theory'] | ['differential geometry, noncommutative', 'wave function', 'operator, algebra', 'effect, nonperturbative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109132'] | ["``Extremely'' localized wavefunctions in noncommutative geometry have disturbances that are localized to distances smaller than $\\sqrt{\\theta},$ where $\\theta $ is the ``area'' parameter that measures noncommutativity. In particular, distributions such as the sign function or the Dirac delta function are limiting ... | ['2001-09-28'] |
31 | ['eng'] | ['Ichikawa, K'] | ['Solution Generating Technique for Noncommutative Orbifolds'] | ['Particle Physics - Theory'] | ['orbifold, noncommutative', 'operator, algebra', 'membrane model, D-brane', 'membrane model, p-brane', 'membrane, fractional', 'field equations, solution', 'tachyon, condensation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109131'] | ['We determine how the tachyon condensations occur in various D-\\=D systems on orbifolds C^2/Z_N by extending the solution generating technique. We propose some rules to classify types of noncommutative solitons as fractional D-branes. This identification gives consistent results with BSFT. The extended solution gener... | ['2001-09-28'] |
32 | ['eng'] | ['Buchbinder, I L', 'Samsonov, I B'] | ['Noncommutative N=2 Supersymmetric Theories in Harmonic Superspace'] | ['Particle Physics - Theory'] | ['supersymmetry', 'superspace, harmonic', 'gauge field theory, Yang-Mills', 'differential geometry, noncommutative', 'coupling, matter', 'n-point function, 4', 'perturbation theory, higher-order', 'effective action', 'background field', 'path integral'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109130'] | ['We discuss a formulation of harmonic superspace approach for noncommuative N=2 supersymmetric field theories paying main attention on new features arising because of noncommutativity. We begin with the known notions of the harmonic superfield models and results obtained and consider how these notions and results are ... | ['2001-09-28'] |
33 | ['eng'] | ['Abdalla, Elcio', 'Correa-Borbonet, L A'] | ['Aspects of Higher Order Gravity and Holography'] | ['Particle Physics - Theory'] | ['gravitation, Lovelock', 'field theory, action', 'derivative, high', 'entropy', 'energy', 'temperature, Hawking', 'field equations, solution', 'black hole', 'holography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109129'] | ['Some thermodynamical properties of Lovelock gravity are discussed in several space-time dimensions, the holographic principle being one of the ingredients of the discussion. As it turns out, the area law and the brickwall method, though correct for the Einstein-Hilbert theory, may fail to work in general.'] | ['2001-09-28'] |
34 | ['eng'] | ['Lemoine, M', 'Lubo, M', 'Martín, J', 'Uzan, J P'] | ['The stress-energy tensor for trans-Planckian cosmology'] | ['Particle Physics - Theory'] | ['astrophysics', 'tensor, energy-momentum', 'field theory, scalar', 'dispersion relations, nonlinear', 'gravitational radiation', 'energy, density', 'back reaction', 'dark energy', 'pressure', 'inflationary universe', 'space-time, Robertson-Walker'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109128'] | ['This article presents the derivation of the stress-energy tensor of a free scalar field with a general non-linear dispersion relation in curved spacetime. This dispersion relation is used as a phenomelogical description of the short distance structure of spacetime following the conventional approach of trans-Planckia... | ['2001-09-28'] |
35 | ['eng'] | ['Myers, R C', 'Tafjord, O'] | ['Superstars and Giant Gravitons'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 10', 'astrophysics, model', 'soliton, BPS', 'asymptotic behavior', 'space-time, anti-de Sitter', 'black hole', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109127'] | ["We examine a family of BPS solutions of ten-dimensional type IIb supergravity. These solutions asymptotically approach AdS_5 X S^5 and carry internal `angular' momentum on the five-sphere. While a naked singularity appears at the center of the anti-de Sitter space, we show that it has a natural physical interpretatio... | ['2001-09-28'] |
36 | ['eng'] | ['Gutowski, J B'] | ['Stringy Domain Walls of N=1, D=4 Supergravity'] | ['Particle Physics - Theory'] | ['supergravity', 'field equations, solution', 'domain wall', 'supersymmetry, transformation', 'holonomy, G(2)', 'membrane model', 'string model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109126'] | ['We examine domain wall solutions of N=1, D=4 supergravity which preserve half of the supersymmetry and arise from Euclidean M2-brane instantons on M5-branes wrapping associative 3-cycles of G_2 holonomy manifolds. We also investigate composite solutions which break an additional half of the supersymmetry.'] | ['2001-09-28'] |
37 | ['eng'] | ['Hayasaka, K', 'Nakayama, R'] | ['An Associative and Noncommutative Product for the Low Energy Effective Theory of a D-Brane in Curved Backgrounds and Bi-Local Fields'] | ['Particle Physics - Theory'] | ['space-time', 'membrane model, D-brane', 'string model', 'background field', 'differential geometry, noncommutative', 'effective action', 'correlation function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109125'] | ['We point out that when a D-brane is placed in an NS-NS B field background with non-vanishing field strength (H=dB) along the D-brane worldvolume, the coordinate of one end of the open string does not commute with that of the other in the low energy limit. The degrees of the freedom associated with both ends are not d... | ['2001-09-28'] |
38 | ['eng'] | ['Schücker, T', 'Zouzou, S'] | ['Spectral action beyond the standard model'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3) x SU(2) x U(1)', 'Higgs model', 'fermion, mass spectrum', 'differential geometry, noncommutative', 'anomaly', 'mathematical methods'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109124'] | ['We rehabilitate the M_1(C)+ M_2(C)+ M_3(C) model of electro-magnetic, weak and strong forces as an almost commutative geometry in the setting of the spectral action.'] | ['2001-09-28'] |
39 | ['eng'] | ['Kim, K Y', 'Lee, B H', 'Yang, H S'] | ['Noncommutative Instantons on R^2_{NC} x R^2_C'] | ['Particle Physics - Theory'] | ['instanton, noncommutative', 'gauge field theory, U(1)', 'gauge field theory, U(2)', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109121'] | ['We study U(1) and U(2) noncommutative instantons on R^2_{NC} x R^2_C based on the ADHM construction. It is shown that the instanton solutions are always regular for both self-dual and anti-self-dual gauge fields even though any projected states are not involved in the ADHM construction. Furthermore the instanton numb... | ['2001-09-28'] |
40 | ['eng'] | ['Iucci, A', 'Naón, C M'] | ['Conformal Gaussian Approximation'] | ['Particle Physics - Theory'] | ['Gauss approximation', 'dimension, 2', 'sine-Gordon model', 'soliton, mass', 'invariance, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109118'] | ['We present an alternative way to determine the unknown parameter associated to a gaussian approximation in a generic two-dimensional model. Instead of the standard variational approach, we propose a procedure based on a quantitative prediction of conformal invariance, valid for systems in the scaling regime, away fro... | ['2001-09-26'] |
41 | ['eng'] | ['Cabrera-Carnero, I', 'Gomes, J F', 'Gueuvoghlanian, E P', 'Sotkov, G M', 'Zimerman, A H'] | ['Non Abelian Toda models and Constrained KP hierarchies'] | ['Particle Physics - Theory'] | ['talk, College Park 2001/08/24', 'field theory, Toda', 'field theory, affine', 'nonabelian', 'Wess-Zumino-Witten model', 'Kadomtsev-Petviashvili equation, hierarchy', 'soliton'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109117'] | ['A general construction of affine Non Abelian Toda models in terms of gauged two loop WZNW model is discussed. Its connection to non relativistic models corresponding to constrained KP hierarchies is established in terms of time evolution associated to positive and negative grading of the Lie algebra.'] | ['2001-09-26'] |
42 | ['eng'] | ['Nath, Pram', 'Syed, R M'] | ['Complete Cubic and Quartic Couplings of 16 and $\\bar {16}$ in SO(10) Unification'] | ['Particle Physics - Theory'] | ['grand unified theory, SO(10)', 'superpotential', 'coupling', 'group theory, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109116'] | ['A recently derived basic theorem on the decomposition of SO(2N) vertices is used to obtain a complete analytic determination of all SO(10) invariant cubic superpotential couplings involving $16_{\\pm}$ semispinors of SO(10) chirality $\\pm$ and tensor representations. In addition to the superpotential couplings compu... | ['2001-09-26'] |
43 | ['eng'] | ['Delius, G W', 'MacKay, N J', 'Short, B J'] | ['Boundary remnant of Yangian symmetry and the structure of rational reflection matrices'] | ['Particle Physics - Theory'] | ['model, chiral', 'charge, conservation law', 'Yang-Baxter equation', 'boundary condition', 'monodromy', 'fusion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109115'] | ["For the classical principal chiral model with boundary, we give the subset of the Yangian charges which remains conserved under certain integrable boundary conditions, and extract them from the monodromy matrix. Quantized versions of these charges are used to deduce the structure of rational solutions of the reflecti... | ['2001-09-26'] |
44 | ['eng'] | ['Vacaru, S I', 'Gontsa, D'] | ['Off-Diagonal Metrics and Anisotropic Brane Inflation'] | ['Particle Physics - Theory'] | ['membrane model', 'inflationary universe', 'entropy, production', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109114'] | ['We study anisotropic reheating (entropy production) on 3D brane from a decaying bulk scalar field in the brane-world picture of the Universe by considering off-diagonal metrics and anholonomic frames. We show that a significant amount of, in general, anisotropic dark radiation is produced in this process unless only ... | ['2001-09-26'] |
45 | ['eng'] | ['Zupnik, B M'] | ['Static BPS-conditions in N=2 harmonic superspace'] | ['Particle Physics - Theory'] | ['talk, Dubna 2001/06/11', 'gauge field theory, Yang-Mills', 'supersymmetry', 'superspace, harmonic', 'soliton, BPS', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109113'] | ['We analyze superfield representations of BPS-conditions for the self-dual static solutions of D=4, N=2 supersymmetric Yang-Mills theory.'] | ['2001-09-26'] |
46 | ['eng'] | ['Goldhaber, A S', 'Litvintsev, A', 'van Nieuwenhuizen, P'] | ['Local Casimir Energy For Solitons'] | ['Particle Physics - Theory'] | ['energy, Casimir', 'soliton', 'phi**n model, 4', 'kink', 'supersymmetry', 'regularization'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109110'] | ['Direct calculation of the one-loop contributions to the energy density of bosonic and supersymmetric phi-to-the-fourth kinks exhibits: (1) Local mode regularization. Requiring the mode density in the soliton and trivial sector to be equal at each point in space yields the anomalous part of the energy density. (2) Pha... | ['2001-12-10'] |
47 | ['eng'] | ['Gates, S J', 'Rana, L', 'Linch, W D', 'Phillips, J'] | ['The Fundamental Supersymmetry Challenge Remains'] | ['Particle Physics - Theory'] | ['M-theory', 'string model', 'supersymmetry, representation', 'supergravity', 'particle, spin'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109109'] | ['In the following, we will review the fundamental problem that prevents a complete understanding of a theory of supersymmetrical field representations and describe its possible relation to a similar problem facing superstring/M-theory.'] | ['2001-09-14'] |
48 | ['eng'] | ['Vagenas, E C'] | ['Quantum Corrections to the Bekestein-Hawking entropy of the BTZ Black Hole via Self-Gravitation'] | ['Particle Physics - Theory'] | ['entropy', 'black hole, BTZ', 'radiation, Hawking', 'tunneling', 'dimension, 3', 'quantization, correction'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109108'] | ['Hawking radiation is viewed as a tunnelling process. In this way the effect of self-gravitation gives rise to quantum corrections to the entropy of the (2+1) BTZ black hole. The entropy is proportional to the horizon area and the quantum corrections to the Bekenstein-Hawking formula S=A_{H}/ 4l_{P}^{2} are found to b... | ['2001-09-14'] |
49 | ['eng'] | ['Berman, D S', 'Cederwall, Martin', 'Gran, U G', 'Larsson, H', 'Nielsen, M', 'Nilsson, B E W', 'Sundell, P'] | ['Deformation independent open brane metrics and generalized theta parameters'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'string model, open', 'field theory, deformation', 'quantization', 'Theta parameter', 'background field'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109107'] | ["We investigate the consequences of generalizing certain well established properties of the open string metric to the conjectured open membrane and open Dp-brane metrics. By imposing deformation independence on these metrics their functional dependence on the background fields can be determined including the notorious... | ['2001-09-14'] |
50 | ['eng'] | ['Rausch de Traubenberg, M'] | ['Fractional Supersymmetry and Infinite Dimensional Lie Algebras'] | ['Particle Physics - Theory'] | ['talk, Kharkov 2000/07/25', 'supersymmetry, fractional', 'algebra, Lie', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109106'] | ['In an earlier work extensions of supersymmetry and super Lie algebras were constructed consistently starting from any representation $\\D$ of any Lie algebra $\\g$. Here it is shown how infinite dimensional Lie algebras appear naturally within the framework of fractional supersymmetry. Using a differential realizatio... | ['2001-09-14'] |
51 | ['eng'] | ['Bonneau, G'] | ['Lorentz and CPT violations in QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'violation, Lorentz', 'violation, CPT', 'Chern-Simons term', 'radiative correction', 'Ward identity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109105'] | ['We rediscuss the recent controversy on a possible Chern-Simons like term generated through radiative corrections in QED with a CPT violating term. We emphasize the fact that any absence of an {\\sl a priori} divergence should be explained by some symmetry or some non-renormalisation theorem : otherwise, no prediction... | ['2001-09-14'] |
52 | ['eng'] | ['Villanueva, V M', 'Nieto, J A', 'Obregón, O'] | ['Non-minimal coupling for spin 3/2 fields'] | ['Particle Physics - Theory'] | ['Rarita-Schwinger equation', 'spin, 3/2', 'fermion', 'tensor, energy-momentum', 'supergravity', 'gauge field theory, Yang-Mills', 'coupling, electromagnetic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109104'] | ['The problem of the electromagnetic coupling for spin 3/2 fields is discussed. Following supergravity and some recent works in the field of classical supersymmetric particles, we find that the electromagnetic coupling must not obey a minimal coupling in the sense that one needs to consider not only the electromagnetic... | ['2001-09-14'] |
53 | ['eng'] | ['Deotto, E'] | ['Classical Mechanics and kappa-symmetry'] | ['Particle Physics - Theory'] | ['mechanics, classical', 'supersymmetry', 'path integral', 'Lagrangian formalism', 'Hamiltonian formalism', 'kappa symmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109103'] | ['In this paper we analyze two local extensions of a model introduced some time ago to obtain a path integral formalism for Classical Mechanics. In particular, we show that these extensions exhibit a nonrelativistic local symmetry which is very similar to the well known kappa-symmetry introduced in the literature almos... | ['2001-09-14'] |
54 | ['eng'] | ['Vaidya, S'] | ['Scalar Multi-Solitons on the Fuzzy Sphere'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'space-time, sphere', 'sphere, fuzzy', 'soliton', 'energy', 'moduli space', 'geometry', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109102'] | ['We study solitons in scalar theories with polynomial interactions on the fuzzy sphere. Such solitons are described by projection operators of rank k, and hence the moduli space for the solitons is the Grassmannian Gr(k,2j+1). The gradient term of the action provides a non-trivial potential on Gr(k,2j+1), thus reducin... | ['2001-09-14'] |
55 | ['eng'] | ['Kim, H D'] | ['Softness of Scherk-Schwarz Supersymmetry Breaking'] | ['Particle Physics - Theory'] | ['supersymmetry, symmetry breaking', 'dimension, 5', 'Higgs particle, mass', 'mass, correction', 'invariance, Lorentz', 'regularization', 'Kaluza-Klein model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109101'] | ['We investigate how the mass correction appears in 5-D with Scherk-Schwarz compactification and clarify whether the KK regularization is reliable method or not. In the extremely sharp cutoff limit of the 5-D regulator which preserves 5-D Lorentz invariance, we prove that the one loop correction to the mass does not de... | ['2001-09-14'] |
56 | ['eng'] | ['Achúcarro, A', 'Davis, A C', 'Pickles, M', 'Urrestilla, J'] | ['Vortices in Theories with Flat Directions'] | ['Particle Physics - Theory'] | ['vortex', 'supersymmetry', 'flat direction', 'vacuum state', 'gauge field theory, U(1)', 'Bogomolnyi equation', 'flux, magnetic', 'astrophysics, string'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109097'] | ['In theories with flat directions containing vortices, such as supersymmetric QED, there is a vacuum selection effect in the allowed asymptotic configurations. We explain the role played by gauge fields in this effect and extend this to an abelian model with N=2 supersymmetry. In this case the magnetic flux spreads ov... | ['2001-09-13'] |
57 | ['eng'] | ['Dolan, L', 'Nappi, C R', 'Witten, Edward'] | ['Conformal Operators for Partially Massless States'] | ['Particle Physics - Theory'] | ['operator, conformal', 'space-time, anti-de Sitter', 'astrophysics', 'conservation law'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109096'] | ["The AdS/CFT correspondence is explored for ``partially massless'' fields in AdS space (which have fewer helicity states than a massive field but more than a conventional massless field). Such fields correspond in the boundary conformal field theory to fields obeying a certain conformally-invariant differential equati... | ['2001-09-13'] |
58 | ['eng'] | ['Wang, X J', 'Yan, M L'] | ['Noncommutative QED and Muon Anomalous Magnetic Moment'] | ['Particle Physics - Theory'] | ['muon, magnetic moment', 'quantum electrodynamics, noncommutative', 'fermion, vertex function', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109095'] | ['The muon anomalous $g$ value, $a_\\mu=(g-2)/2$, is calculated up to one-loop level in noncommutative QED. We argue that relativistic muon in E821 experiment nearly always stays at the lowest Landau level. So that spatial coordinates of muon do not commute each other. Using parameters of E821 experiment, $B=14.5$KG an... | ['2001-09-13'] |
59 | ['eng'] | ['Dolan, B P', "O'Connor, D", 'Presnajder, P'] | ['Matrix $\\phi^4$ Models on the Fuzzy Sphere and their Continuum Limits'] | ['Particle Physics - Theory'] | ['phi**n model', 'sphere, fuzzy', 'differential geometry, noncommutative', 'field theory, action', 'two-point function', 'perturbation theory, higher-order', 'partial wave', 'lattice field theory, continuum limit'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109084'] | ['We demonstrate that the UV/IR mixing problems found recently for a scalar $\\phi^4$ theory on the fuzzy sphere are localized to tadpole diagrams and can be overcome by a suitable modification of the action. This modification is equivalent to normal ordering the $\\phi^4$ vertex. In the limit of the commutative sphere... | ['2001-09-12'] |
60 | ['eng'] | ['Grosse, Harald', 'Schlesinger, K G'] | ['Spinfoam models for M-theory'] | ['Particle Physics - Theory'] | ['M-theory', 'field theory, tensor', 'field theory, BF', 'spin, foam', 'dimension, 3', 'dimension, 7', 'partition function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109080'] | ['We use the approach to generate spin foam models by an auxiliary field theory defined on a group manifold (as recently developed in quantum gravity and quantization of BF-theories) in the context of topological quantum field theories with a 3-form field strength. Topological field theories of this kind in seven dimen... | ['2001-09-11'] |
61 | ['eng'] | ['Graber, T', 'Zaslow, E'] | ['Open-String Gromov-Witten Invariants'] | ['Particle Physics - Theory'] | ['space, Calabi-Yau', 'transformation, mirror', 'fibre bundle', 'string model, open', 'geometry, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109075'] | ['We propose localization techniques for computing Gromov-Witten invariants of maps from Riemann surfaces with boundaries into a Calabi-Yau, with the boundaries mapped to a Lagrangian submanifold. The computations can be expressed in terms of Gromov-Witten invariants of one-pointed maps. In genus zero, an equivariant v... | ['2001-09-11'] |
62 | ['eng'] | ['Rachidi, M', 'Saidi, E H', 'Zerouaoui, J'] | ['Fractional Statistics in terms of the r-Generalized Fibonacci Sequences'] | ['Particle Physics - Theory'] | ['statistical mechanics', 'spin, statistics', 'fractional', 'number theory', 'quasiparticle'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109062'] | ['We develop the basis of the two dimensional generalized quantum statistical systems by using results on $r$-generalized Fibonacci sequences. According to the spin value $s$ of the 2d-quasiparticles, we distinguish four classes of quantum statistical systems indexed by $ s=0,1/2:mod(1)$, $s=1/M:mod(1)$, $s=n/M:mod(1)$... | ['2001-09-10'] |
63 | ['eng'] | ['Azam, M'] | ['The Stability of Matter and Landau Singularity in QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics, singularity', 'matter, stability', 'renormalization group', 'expansion 1/N, flavor', 'ground state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109061'] | ['The theory of stability of relativistic matter seem to suggest that at high enough energies Quantum Electrodynamics may not be a well behaved theory. We show that, this is true for QED with infinite number of flavour of Fermions, where e^2*N_f is held constant,while number of flavour, N_f tends to infinity, "e" being... | ['2001-09-10'] |
64 | ['eng'] | ['Yoneya, T'] | ['World-Sheet String Duality and the Hidden Supersymmetry'] | ['Particle Physics - Theory'] | ['talk, Beijing 2001/07/16', 'talk, Fukuoka 2001/07/03', 'string model', 'supersymmetry', 'hidden symmetry', 'duality', 'Goldstino', 'scattering amplitude'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109058'] | ['It is reviewed how space-time supersymmetry is realized nonlinearly in open superstring theory without making the GSO projection. We show that the world-sheet string dualities, viz. dualities of open-closed strings and of open-open strings, play crucial roles for the existence of 10 dimensional N=2 supersymmetry in a... | ['2001-09-10'] |
65 | ['eng'] | ['Shiromizu, T', 'Ida, D', 'Torii, T'] | ['Gravitational energy, dS/CFT correspondence and cosmic no-hair'] | ['Particle Physics - Theory'] | ['gravitation, energy', 'space-time, de Sitter', 'field theory, conformal', 'asymptotic behavior', 'energy, conformal', 'vector, Killing', 'hair', 'tensor, Weyl'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109057'] | ['The gravitational energy is examined in asymptotically de Sitter space-times. The positivity will be shown for certain cases. The de Sitter/CFT(dS/CFT) correspondence recently proposed and cosmic no-hair conjecture are testified in the aspect of the gravitational energy. From the holographic renormalization group poi... | ['2001-09-10'] |
66 | ['eng'] | ['Machin, W'] | ['Dynamics of the spinning particle in one dimension'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'spin', 'supersymmetry', 'supergravity', 'field theory, action', 'quantization', 'Hamiltonian formalism'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109052'] | ['The most general N=1 lagrangian for the spinning particle with local supersymmetry is introduced. Its dynamics are analysed and the system is quantised.'] | ['2001-09-07'] |
67 | ['eng'] | ['Oda, I', 'Tonin, M'] | ['On the Berkovits Covariant Quantization of GS Superstring'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'supersymmetry', 'quantization', 'transformation, Becchi-Rouet-Stora', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109051'] | ['We study the covariant quantization of the Green-Schwarz (GS) superstrings proposed recently by Berkovits. In particular, we reformulate the Berkovits approach in a way that clarifies its relation with the GS approach and allows to derive in a straightforward way its extension to curved spacetime background. We expla... | ['2001-09-07'] |
68 | ['eng'] | ['Ito, M'] | ['Five-Dimensional Warped Geometry with a Bulk Scalar Field'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'dimension, 5', 'dimension, 4', 'membrane model', 'astrophysics, fundamental constant', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109040'] | ['We explore the diversity of warped metric function in five-dimensional gravity including a scalar field and a 3-brane. We point out that the form of the function is determined by a parameter introduced here. For a particular value of the parameter, the warped metric function is smooth without having a singularity, an... | ['2001-12-10'] |
69 | ['eng'] | ['Gauntlett, J P', 'Kim, N'] | ['M-Fivebranes Wrapped on Supersymmetric Cycles II'] | ['Particle Physics - Theory'] | ['M-theory', 'membrane model, p-brane', 'p-brane, 5', 'supersymmetry', 'field equations, solution', 'supergravity', 'dimension, 11', 'soliton, BPS', 'space, Kaehler'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109039'] | ['We construct D=11 supergravity solutions dual to the twisted field theories arising when M-theory fivebranes wrap supersymmetric cycles. The cases considered are M-fivebranes wrapped on (i) a complex Lagrangian four-cycle in a D=8 hyper-Kaehler manifold corresponding to a D=2 field theory with (2,1) supersymmetry (ii... | ['2001-12-10'] |
70 | ['eng'] | ['Leite, M M'] | ['New renormalization group approach and scaling laws for the Lifshitz critical behavior'] | ['Particle Physics - Theory'] | ['critical phenomena', 'renormalization group', 'scaling', 'fixed point', 'phi**n model, 4', 'derivative, high', 'anisotropy'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109037'] | ['A new renormalization group treatment is proposed for the critical exponents of an $m$-fold Lifshitz point. The anisotropic cases ($m \\neq 8$) are described by two independent fixed points associated to two independent momentum flow along the quadratic and quartic directions, respectively. The isotropic case is desc... | ['2001-12-10'] |
71 | ['eng'] | ['Visser, M', 'Barcelo, C', 'Liberati, S'] | ['Acoustics in Bose--Einstein condensates as an example of Lorentz symmetry breaking'] | ['Particle Physics - Theory'] | ['talk, Bloomington 2001/08/15', 'symmetry breaking, Lorentz', 'boson, condensation', 'acoustic', 'dispersion relations', 'Schroedinger equation', 'quantum gravity', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109033'] | ["To help focus ideas regarding possible routes to the breakdown of Lorentz invariance, it is extremely useful to explore concrete physical models that exhibit similar phenomena. In particular, acoustics in Bose--Einstein condensates has the interesting property that at low-momentum the phonon dispersion relation can b... | ['2001-09-06'] |
72 | ['eng'] | ['Koerber, P', 'Sevrin, A'] | ["Testing the $\\alpha'{}^3$ term in the non-abelian open superstring effective action"] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'effective action', 'gauge field theory, Yang-Mills', 'field theory, torus', 'magnetic field, background field', 'spectra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109030'] | ["Recently, a proposal for the full non-abelian open superstring effective action through ${\\cal O}(\\alpha'{}^3)$ has been formulated in {\\tt hep-th/0108169}. We test this result by calculating the spectrum in the presence of constant magnetic background fields and by comparing the result to string theoretic predict... | ['2001-09-05'] |
73 | ['eng'] | ['Vancea, I V'] | ['Introductory Lectures to D-branes'] | ['Particle Physics - Theory'] | ['lectures, Campos do Jordao 2001/01/14', 'membrane model, D-brane', 'membrane model, p-brane', 'string model, boson', 'phase space', 'mass spectrum', 'algebra, Virasoro', 'algebra, representation', 'effective action', 'membrane, tension', 'scattering amplitude, higher-order', 'supersymmetry', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109029'] | ['This is a pedagogical introduction to D-branes, addressed to graduate students in field theory and particle physics and to other beginners in string theory. I am not going to review the most recent results since there are already many good papers on web devoted to that. Instead, I will present some old techniques in ... | ['2001-09-05'] |
74 | ['eng'] | ['Celeghini, E', "Del'Olmo, M A"] | ['Quantum Algebras and Quantum Physics'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'quantum algebra, SU(2)', 'algebra, Lie', 'algebra, deformation', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109026'] | ['In Quantum Mechanics operators must be hermitian and, in a direct product space, symmetric. These properties are saved by Lie algebra operators but not by those of quantum algebras. A possible correspondence between observables and quantum algebra operators is suggested by extending the definition of matrix elements ... | ['2001-09-05'] |
75 | ['eng'] | ['Laperashvili, L V', 'Nielsen, Holger Bech', 'Ryzhikh, D A'] | ['Phase Transition in Gauge Theories and Multiple Point Model'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'gauge field theory, SU(2)', 'gauge field theory, SU(3)', 'Higgs model', 'monopole, scalar', 'critical phenomena', 'renormalization group, transformation', 'critical phenomena', 'numerical calculations, Monte Carlo', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109023'] | ["In the present paper the phase transition in the regularized U(1) gauge theory is investigated using the dual Abelian Higgs model of scalar monopoles. The corresponding renormalization group improved effective potential, analogous to the Coleman-Weinberg's one, was considered in the two-loop approximation for $\\beta... | ['2001-09-05'] |
76 | ['eng'] | ['Janik, R A'] | ['Exceptional boundary states at c=1'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'boson', 'spontaneous compactification, S(1)', 'partition function', 'phase space, boundary condition', 'operator product expansion', 'algebra, fusion', 'string model, open', 'differential equations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109021'] | ["We consider the CFT of a free boson compactified on a circle, such that the compactification radius $R^2$ is an irrational multiple of $R^2_{selfdual}$. Apart from the standard Dirichlet and Neumann boundary states, Friedan suggested [1] that an additional 1-parameter family of boundary states exists. These states br... | ['2001-09-05'] |
77 | ['eng'] | ['Aoyama, S', 'Masuda, T'] | ['The Fuzzy Kaehler Coset Space with the Darboux Coordinates'] | ['Particle Physics - Theory'] | ['space, Kaehler', 'coset space, fuzzy', 'space, symplectic', 'deformation, quantization', 'operator, algebra', 'geometry, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109020'] | ['The Fedosov deformation quantization of the symplectic manifold is determined by a 1-form differential r. We identify a class of r for which the $\\star$ product becomes the Moyal product by taking appropriate Darboux coordinates, but invariant by canonically transforming the coordinates. This respect of the $\\star$... | ['2001-09-05'] |
78 | ['eng'] | ['Dabholkar, A'] | ['On Condensation of Closed-string Tachyons'] | ['Particle Physics - Theory'] | ['F-theory', 'string model, closed', 'tachyon, condensation', 'orientifold', 'membrane model', 'membrane, annhilation', 'moduli space', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109019'] | ['An F-theory dual of a nonsupersymmetric orientifold is considered. It is argued that the condensation of both open and closed string tachyons in the orientifold corresponds to the annihilation of branes and anti-branes in the F-theory dual. The end-point of tachyon condensation is thus expected to be the vacuum of Ty... | ['2001-09-05'] |
79 | ['eng'] | ['Bigatti, D'] | ['Gauge Theory On The Fuzzy Torus'] | ['Particle Physics - Theory'] | ['talk, Nis 2001/08/26', 'gauge field theory, U(1)', 'torus, fuzzy', 'lattice field theory, noncommutative', 'fermion', 'Wilson loop'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109018'] | ['In this paper a formulation of U(1) gauge theory on a fuzzy torus is discussed. The theory is regulated in both the infrared and ultraviolet. It can be thought of as a non-commutative version of lattice gauge theory on a periodic lattice. The construction of Wilson loops is particularly transparent in this formulatio... | ['2001-09-05'] |
80 | ['eng'] | ['Reenders, M'] | ['Large N planar approximation and critical behavior of a SU(N) invariant four-fermion model in 2+1 dimensions'] | ['Particle Physics - Theory'] | ['four-fermion interaction', 'symmetry, SU(N)', 'dimension, 3', 'expansion 1/N', 'approximation, planar', 'critical phenomena', 'perturbation theory, higher-order', 'mass spectrum', 'scaling', 'Dyson-Schwinger equation, solution', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109016'] | ["A four-fermion model in 2+1 dimensions describing N Dirac fermions interacting via SU(N) invariant N^2-1 four-fermion interactions is solved in the leading order of the 1/N expansion. The 1/N expansion corresponds to 't Hoofts topological 1/N expansion in which planar Feynman diagrams prevail. A truncated set of Schw... | ['2001-12-10'] |
81 | ['eng'] | ['Rigol, M'] | ['About an Alternative Vacuum State for Perturbative QCD'] | ['Particle Physics - Theory'] | ['Thesis', 'Thesis'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109012'] | ['A particular initial state for the construction of a perturbative QCD expansion is investigated. It is formed as a coherent superposition of zero momentum gluon pairs and shows Lorentz as well as global $SU(3)$ symmetries. The general form of the Wick theorem is discussed, and it follows that the gluon and ghost prop... | ['2001-09-04'] |
82 | ['eng'] | ['Ahn, C', 'Woo, K'] | ['Domain Wall and Membrane Flow from Other Gauged d=4, N =8 Supergravity'] | ['Particle Physics - Theory'] | ['supergravity', 'membrane model', 'domain wall', 'gauge field theory', 'field theory, action', 'dependence, gauge', 'field equations, solution', 'group theory, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109010'] | ['By studying so-far known extrema of non-semi-simple Inonu-Wigner contraction CSO(p, q) and non-compact SO(p, q)(p+q=8) gauged N=8 supergravity in 4-dimensions developed by Hull sometime ago, one expects there exists nontrivial flow in the 3-dimensional boundary field theory. We find that these gaugings provide first-... | ['2001-09-04'] |
83 | ['eng'] | ['Brandenberger, R H', 'Finelli, F'] | ['On the Spectrum of Fluctuations in an Effective Field Theory of the Ekpyrotic Universe'] | ['Particle Physics - Theory'] | ['astrophysics, model', 'model, ekpyrotic', 'fluctuation, spectra', 'membrane model', 'effective action'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0109004'] | ['We consider the four-dimensional effective field theory which has been used in previous studies of perturbations in the Ekpyrotic Universe, and discuss the spectrum of cosmological fluctuations induced on large scales by quantum fluctuations of the bulk brane. By matching cosmological fluctuations on a constant energ... | ['2001-09-04'] |
84 | ['eng'] | ['Youm, D'] | ['A Varying-$\\alpha$ Brane World Cosmology'] | ['Particle Physics - Theory'] | ['membrane model', 'Randall-Sundrum model', 'charge, electric', 'charge, time variation', 'astrophysics, model', 'dimension, 5', 'dimension, 4', 'Einstein equation', 'Friedman model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108237'] | ['We study the brane world cosmology in the RS2 model where the electric charge varies with time in the manner described by the varying fine-structure constant theory of Bekenstein. We map such varying electric charge cosmology to the dual variable-speed-of-light cosmology by changing system of units. We comment on cos... | ['2001-09-03'] |
85 | ['eng'] | ['Buchbinder, I L'] | ['Construction of Low-Energy Effective Action in N=4 Super Yang-Mills Theories'] | ['Particle Physics - Theory'] | ['talk, Dubna 2001/06/11', 'gauge field theory, SU(N)', 'supersymmetry', 'effective action', 'superspace, harmonic', 'background field', 'symmetry, spontaneously broken'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108231'] | ['We review a recent progress in constructing low-energy effective action in N=4 super Yang-Mills theories. Using harmonic superspace approach we consider N=4 SYM in terms of unconstrained N=2 superfield and apply N=2 background field method to finding effective action for N=4 SU(n) SYM broken down to U(1)^(n-1). Gener... | ['2001-09-03'] |
86 | ['eng'] | ['Hannabuss, K C'] | ['Non-commutative Twistor Space'] | ['Particle Physics - Theory'] | ['twistor', 'algebra, noncommutative', 'space-time, deformation', 'quantum group', 'Yang-Baxter equation', 'commutation relations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108228'] | ['It is shown that deformations of twistor space compatible with the Moyal deformation of Minkowski space-time must take the form recently suggested by Kapustin, Kuznetsov and Orlov.'] | ['2001-08-31'] |
87 | ['eng'] | ['Gonera, C', 'Kosinski, P', 'Maslanka, P'] | ['Superintegrable models of Winternitz type'] | ['Particle Physics - Theory'] | ['mechanics, classical', 'integrability', 'potential'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108227'] | ['A general procedure is outlined which allows one to construct superintegrable models of Winternitz type. Some examples are presented.'] | ['2001-08-31'] |
88 | ['eng'] | ['Izawa, K I'] | ['Tubular Field Theory'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'gauge field theory', 'dimension, 3', 'field theory, tubular'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108224'] | ["We propose tubular field theory, which is a continuum analogue of lattice field theory. One-dimensional links (and zero-dimensional sites) in lattice field theory are replaced by two-dimensional tubes to result in two-dimensional spacetime microscopically. As an example, scalar and gauge fields are considered in `thr... | ['2001-08-31'] |
89 | ['eng'] | ['De Berredo-Peixoto, G'] | ['A note on the heat kernel method applied to fermions'] | ['Particle Physics - Theory'] | ['heat kernel', 'fermion', 'operator, Dirac', 'effective action', 'external field'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108223'] | ['The spectrum of the fermionic operators depending on external fields is an important object in Quantum Field Theory. In this paper we prove, using transition to the alternative basis for the $\\gamma$-matrices, that this spectrum does not depend on the sign of the fermion mass, up to a constant factor. This assumptio... | ['2001-09-14'] |
90 | ['eng'] | ['Sugiyama, K', 'Yamaguchi, S'] | ['Cascade of Special Holonomy Manifolds and Heterotic String Theory'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'space, dependence', 'holonomy', 'group theory, G(2)', 'group theory, Spin(7)', 'orbifold', 'partition function', 'invariance, modular', 'charge, topological', 'group theory, representation', 'phase space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108219'] | ['We investigate hetrotic string theory on special holonomy manifolds including exceptional holonomy G_2 and spin(7) manifolds. The gauge symmetry is F_4 in a G_2 manifold compactification, and so(9) in a spin(7) manifold compactification. We also study the cascade of the holonomies: so(8) \\supset spin(7) \\supset G_2... | ['2001-08-30'] |
91 | ['eng'] | ['Sonoda, H'] | ['Off-shell renormalization of the abelian Higgs model in the unitary gauge'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Higgs model, abelian', 'unitary gauge', 'perturbation theory, higher-order', 'propagator', 'S-matrix', 'Ward identity', 'renormalization, off-shell'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108217'] | ['We discuss the off-shell renormalization properties of the abelian Higgs model in the unitary gauge. The model is not renormalizable according to the usual power counting rules. In this paper, however, we show that with a proper choice of interpolating fields for the massive photon and the Higgs particle, their off-s... | ['2001-08-30'] |
92 | ['eng'] | ['Brax, P', 'De van Bruck, C', 'Davis, A C'] | ['Brane-World Cosmology, Bulk Scalars and Perturbations'] | ['Particle Physics - Theory'] | ['astrophysics, model', 'membrane model', 'field theory, scalar', 'supergravity', 'Randall-Sundrum model', 'field theory, tensor', 'dimension, 4', 'dimension, 5', 'density, perturbation', 'model, fluid', 'Klein-Gordon equation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108215'] | ['We investigate aspects of cosmology in brane world theories with a bulk scalar field. We concentrate on a recent model motivated from supergravity in singular spaces. After discussing the background evolution of such a brane-world, we present the evolution of the density contrast. We compare our results to those obta... | ['2001-08-30'] |
93 | ['eng'] | ['Motoyui, N', 'Tominaga, S', 'Yamada, M'] | ['Hamilton-Jacobi Solution to Soliton Paths and Triangular Mass Relation in Two-dimensional Extended Supersymmetric Theory'] | ['Particle Physics - Theory'] | ['Wess-Zumino model', 'dimension, 2', 'dimensional reduction', 'dimension, 4', 'supersymmetry', 'soliton', 'Hamilton-Jacobi equation', 'mass, constraint'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108210'] | ["D=2,N=2 generalized Wess-Zumino theory is investigated by the dimensional reduction from D=4,N=1 theory. For each solitonic configuration (i,j) the classical static solution is solved by the Hamilton-Jacobi method of equivalent one-dimensional classical mechanics. It is easily shown that the Bogomol'nyi mass bound is... | ['2001-08-29'] |
94 | ['eng'] | ['Ogushi, S'] | ['AdS Black Hole in R^2-Gravity'] | ['Particle Physics - Theory'] | ['talk, Paris 2001/06/05', 'gravitation', 'derivative, high', 'black hole, anti-de Sitter', 'geometry, induced', 'Friedman model', 'temperature, Hawking', 'entropy', 'Hubble constant', 'field theory, conformal', 'strong coupling'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108209'] | ["We discuss some properties of higher derivative (HD) bulk gravity without Riemann tensor square term. Such a kind of gravity admits Schwarzschild Anti de Sitter (SAdS) black hole as exact solution. It is shown that induced brane geometry on such background is Friedmann-Robertson-Walker (FRW) radiation dominated Unive... | ['2001-08-29'] |
95 | ['eng'] | ['Gubser, S S', 'Tseytlin, Arkady A', 'Volkov, M S'] | ['Non-abelian 4-d black holes, wrapped 5-branes, and their dual descriptions'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'membrane model, D-brane', 'D-brane, 5', 'dimension, 10', 'black hole, nonabelian', 'symmetry breaking, chiral', 'dimension, 4', 'monopole, nonabelian', 'black hole, horizon', 'temperature, Hawking', 'entropy', 'stability, thermodynamical', 'sigma model, nonlinear', '... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108205'] | ['We study extremal and non-extremal generalizations of the regular non-abelian monopole solution of hep-th/9707176, interpreted in hep-th/0007018 as 5-branes wrapped on a shrinking S^2. Naively, the low energy dynamics is pure N=1 supersymmetric Yang-Mills. However, our results suggest that the scale of confinement an... | ['2001-08-28'] |
96 | ['eng'] | ['Neupane, I P'] | ['Effective Lagrangian from Higher Curvature Terms'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'graviton, massive', 'astrophysics, fundamental constant', 'effective Lagrangian', 'gravitation, lens', 'ghost, massive', 'spin, 2', 'invariance, gauge', 'gravitation, action', 'derivative, high', 'excited state', 'field equations, linear'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108194'] | ['We demonstrate that the van Dam-Veltman-Zakharov discontinuity arising in the $M^2 \\to 0$ limit of the massive graviton through an explicit Pauli-Fierz mass term is special to Minkowski space, and it is absent in anti de Sitter space, in particular, when graviton acquires mass spontaneously from the higher curvature... | ['2001-08-28'] |
97 | ['eng'] | ['Myung, Y S'] | ['A gauge boson from the Kaluza-Klein approach of the Randall-Sundrum brane world'] | ['Particle Physics - Theory'] | ['membrane model', 'Randall-Sundrum model', 'Kaluza-Klein model', 'gauge boson, massless'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108193'] | ['We clarify a mechanism to obtain a massless gauge boson from the Kaluza-Klein approach of the Randall-Sundrum(RS) brane world. This corresponds exactly to the same mechanism of achieving a localization of the gauge boson by adding both the bulk and brane mass terms. Accordingly this work puts another example for a lo... | ['2001-08-28'] |
98 | ['eng'] | ['Alexander, S', 'Brandenberger, R H', 'Magueijo, J'] | ['Non-Commutative Inflation'] | ['Particle Physics - Theory'] | ['inflationary universe', 'space-time, noncommutative', 'radiation', 'space-time, quantization', 'dispersion relations', 'thermodynamics, fluctuation', 'space-time, fluctuation', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108190'] | ['We show how a radiation dominated universe subject to space-time quantization may give rise to inflation as the radiation temperature exceeds the Planck temperature. We consider dispersion relations with a maximal momentum (i.e. a mimimum Compton wavelength, or quantum of space), noting that some of these lead to a t... | ['2001-08-28'] |
99 | ['eng'] | ['Kamata, M', 'Nakamula, A'] | ['A q-analog of the ADHMN construction and axisymmetric multi-instantons'] | ['Particle Physics - Theory'] | ['gauge field theory, Sp(N)', 'instanton', 'symmetry, axial', 'magnetic monopole, BPS', 'gauge field theory, SU(2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0108188'] | ['In the preceding paper (Phys. Lett. B463 (1999) 257), the authors presented a q-analog of the ADHMN construction and obtained a family of anti-selfdual configurations with a parameter q for classical SU(2) Yang-Mills theory in four-dimensional Euclidean space. The family of solutions can be seen as a q-analog of the ... | ['2001-08-28'] |
End of preview. Expand in Data Studio
HEP - High Energy Physics collection.
Description:
This corpus is oriented to the study of multi-labeled text classifiers. It is composed of scientific articles in the area of High Energy Physics (HEP) obtained from the CDS document server of the European Nuclear Physics Laboratory (CERN). The corpus is divided into three subsets (called partitions), where each partition is composed, in turn, of two files: one containing the records of each article (with information such as abstracts, authors and, of course, classes or keywords) in compressed XML format, and another containing a plain text version of the full article generated from the PDF available in the CERN databases (in tar + gzip format) The classes are delimited by the XML tag KEYWORD. These are the manually assigned DESY thesaurus tags. More information about the DESY thesaurus is available.
- hepth split: 18,114 Theoretical Physics documents (metadata - 5.3 Mb) (articles - 226 Mb)
- hepex split: 2,599 papers of Experimental Physics (metadata - 1.6 Mb) (articles - 28 Mb)
- astroph split: 2,716 Astrophysics documents (metadata - 1.1 Mb) (articles - 29 Mb)
Licensing Information
HEP Collection is released under the Apache-2.0 License.
Citation:
This corpus has been prepared by Arturo Montejo Ráez, with metadata provided by Jens Vigen and the help of the CDS Team.
@Article{montejo2004,
author = {Montejo-Ráez, A. and Steinberger, R. and Ureña-López, L. A.},
title = {Adaptive selection of base classifiers in one-against-all learning for large multi-labeled collections},
booktitle = {Advances in Natural Language Processing: 4th International Conference, EsTAL 2004},
pages = {1--12},
year = {2004},
editor = {Vicedo J. L. et al.},
location = {Alicante, Spain},
number = {3230},
series = {Lectures notes in artifial intelligence},
publisher = {Springer}
}
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