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 |
|---|---|---|---|---|---|---|---|---|
16,400 | ['eng'] | ['Byers, N'] | ['The life and times of Emmy Noether'] | ['Particle Physics - Theory'] | ['talk, Erice 1994/07/29', 'introductory', 'particle physics, history', 'current, conservation law', 'symmetry, transformation', 'relativity theory, general', 'tensor, energy-momentum', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411110'] | ["The contributions of Emmy Noether to particle physics fall into two categories. One is given under the rubric of Noether's theorem, and the other may be described as her important contributions to modern mathematics. These will be discussed along with an historical account of her work and what its impact has been. In... | ['1994-11-22'] |
16,401 | ['eng'] | ['Chen, B', 'Teng, H B', 'Wu, K'] | ['N=2 and N=4 SUSY Yang-Mills action on M$^{4}$ x (Z$_{2}$ + Z$_{2}$) non-commutative geometry'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'differential geometry, noncommutative', 'differential forms', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411158'] | ['We show that the N=2 and N=4 SUSY Yang-Mills action can be reformulated in the sense of non-commutative geometry on M^4\\times (Z_2\\oplus Z_2) in a rather simple way. In this way the scalars or pseudoscalars are viewed as gauge fields along two directions in the space of one-forms on Z_2\\oplus Z_2.'] | ['1994-11-22'] |
16,402 | ['eng'] | ["D'Andrade, M A", 'Del Cima, O M'] | ['N = 1 super-$\\tau_{3}$ QED from Atiyah-Ward space-time'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'supersymmetry, superfield', 'space-time, signature', 'dimension, 4', 'dimensional reduction', 'dimension, 3'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411154'] | ['In this letter, we present the action for the massive super-{\\QED}. A pair of chiral and a pair of anti-chiral superfields with opposite U(1)-charges are required. We also carry out a dimensional reduction {\\it{\\`a la}} Scherk from (2+2) to (1+2) dimensions, and we show that, after suitable truncations are perform... | ['1994-11-22'] |
16,403 | ['eng'] | ['Lugo, R'] | ['Gravitational instantons and black plane solutions in 4-d string theory'] | ['Particle Physics - Theory'] | ['string model, boson', 'field theory, Euclidean', 'gravitation', 'field theory, axion', 'field theory, dilaton', 'field equations, instanton', 'black hole', 'duality', 'radiation, Hawking'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411152'] | ['We consider gauged Wess-Zumino models based on the non compact group SU(2,1). It is shown that by vector gauging the maximal compact subgroup U(2) the resulting backgrounds obey the gravity-dilaton one loop string vacuum equations of motion in four dimensional euclidean space. The torsionless solution is then interpr... | ['1994-11-22'] |
16,404 | ['eng'] | ['McArthur, I N'] | ['The Berkovits-Vafa construction and nonlinear realizations'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'algebra, Virasoro', 'algebra, representation', 'nonlinear'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411150'] | ['Berkovits and Vafa recently showed that critical string theories can be considered as critical superstring theories with a special choice of background. The embedding of the Virasoro algebra into the super-Virasoro algebra involved in this construction has been extended to the noncritical case by Berkovits and Ohta. ... | ['1994-11-22'] |
16,405 | ['eng'] | ['Seiberg, N'] | ['Electric-magnetic duality in supersymmetric non-abelian gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion, flavor', 'symmetry, SU(N) x SU(N) x U(1) x U(1)', 'field theory, soliton', 'dependence, gauge', 'duality', 'renormalization group, beta function', 'field theory, deformation', 'potential, flat direction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411149'] | ['We demonstrate electric-magnetic duality in N=1 supersymmetric non-Abelian gauge theories in four dimensions by presenting two different gauge theories (different gauge groups and quark representations) leading to the same non-trivial long distance physics. The quarks and gluons of one theory can be interpreted as so... | ['1994-11-22'] |
16,406 | ['eng'] | ['Guruswamy, S', 'Vitale, P'] | ['Correlation functions of a conformal field theory in three dimensions'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 3', 'space-time', 'invariance, conformal', 'correlation function', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411146'] | ['We derive explicit forms of the two--point correlation functions of the O(N) non-linear sigma model at the critical point, in the large N limit, on various three dimensional manifolds of constant curvature. The two--point correlation function, G(x, y), is the only n-point correlation function which survives in this l... | ['1994-11-22'] |
16,407 | ['eng'] | ['Scholtz, F G', 'Theron, A N', 'Geyer, H B'] | ['Spin in the path integral'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'spin', 'algebra, Grassmann', 'path integral', 'operator, algebra', 'bosonization', 'coset space, SU(2)/U(1)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411142'] | ["We discuss the equivalence between the path integral representations of spin dynamics for anti-commuting (Grassmann) and commuting variables and establish a bosonization dictionary for both generators of spin and single fermion operators. The content of this construction in terms of the representations of the spin al... | ['1994-11-23'] |
16,408 | ['eng'] | ['Grigore, D R'] | ['Varational equations and symmetries in the lagrangian formalism'] | ['Particle Physics - Theory'] | ['Lagrangian formalism', 'field theory, scalar', 'field theory, classical', 'field theory, higher-order', 'invariance, Poincare'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411141'] | ["Symmetries in the Lagrangian formalism of arbitrary order are analysed with the help of the so-called Anderson-Duchamp-Krupka equations. For the case of second order equations and a scalar field we establish a polynomial structure in the second order derivatives. This structure can be used to make more precise the fo... | ['1994-11-23'] |
16,409 | ['eng'] | ['Hori, K'] | ['Constraints for topological strings in D $\\geq$ 1'] | ['Particle Physics - Theory'] | ['string model, topological', 'constraint', 'dimension, >=1', 'correlation function', 'differential forms', 'cohomology', 'transformation, Becchi-Rouet-Stora', 'field theory, instanton', 'scattering amplitude', 'field theoretical model, CP(1)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411135'] | ["New relations of correlation functions are found in topological string theory; one for each second cohomology class of the target space. They are close cousins of the Deligne-Dijkgraaf-Witten's puncture and dilaton equations. When combined with the dilaton equation and the ghost number conservation, the equation for ... | ['1994-11-22'] |
16,410 | ['eng'] | ['Griguolo, L'] | ['$\\zeta$-function calculation of the Weyl determinant for two-dimensional non-abelian gauge theories in a curved background and its W-Z-W terms'] | ['Particle Physics - Theory'] | ['space-time', 'any-dimensional', 'gauge field theory, SU(N)', 'anomaly, chiral', 'anomaly, Lorentz', 'operator, determinant', 'regularization, zeta function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411132'] | ["Using a cohomological characterization of the consistent and the covariant Lorentz and gauge anomalies, derived from the complexification of the relevant algebras, we study in d=2 the definition of the Weyl determinant for a non-abelian theory with Riemannian background. We obtain two second order operators that prod... | ['1994-11-22'] |
16,411 | ['eng'] | ['Berglund, P', 'Hübsch, T'] | ['On a residue representation of deformation, Koszul and chiral rings'] | ['Particle Physics - Theory'] | ['field theory, massless', 'massless, field theory', 'space-time, Calabi-Yau', 'field theory, orbifold', 'Landau-Ginzburg model', 'field theory, deformation', 'algebra, Becchi-Rouet-Stora', 'constraint', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411131'] | ['A residue-theoretic representation is given for massless matter fields in (quotients) of (weighted) \\CY\\ complete intersection models and the corresponding chiral operators in \\LGO{s}. The well known polynomial deformations are thus generalized and the universal but somewhat abstract Koszul computations acquire a ... | ['1994-11-22'] |
16,412 | ['eng'] | ['Brandt, F T', 'Frenkel, J', 'Taylor, J C'] | ['High-temperature QCD and the classical Boltzmann equation in curved spacetime'] | ['Particle Physics - Theory'] | ['quantum chromodynamics, perturbation theory', 'finite temperature', 'Boltzmann equation, classical', 'gravitation', 'tensor, energy-momentum', 'effective action', 'postulated particle, graviton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411130'] | ["It has been shown that the high-temperature limit of perturbative thermal QCD is easily obtained from the Boltzmann transport equation for `classical' coloured particles. We generalize this treatment to curved space-time. We are thus able to construct the effective stress-energy tensor. We give a construction for an ... | ['1994-11-22'] |
16,413 | ['eng'] | ['Ghosh, A', 'Mitra, P'] | ['Entropy for extremal Reissner-Nordstrøm black holes'] | ['Particle Physics - Theory'] | ['black hole, horizon', 'field theory, scalar', 'entropy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411128'] | ['We reinterpret recent work on extremal Reissner- Nordstr\\o m black holes to argue that the mass is a measure of the gravitational entropy. We also find that the entropy of scalar fields in this background has a stronger divergence than usual.'] | ['1994-11-22'] |
16,414 | ['eng'] | ['Madore, J', 'Masson, T', 'Mourad, J'] | ['Linear connections on matrix geometries'] | ['Mathematical Physics and Mathematics'] | ['differential geometry, noncommutative', 'differential forms'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411127'] | ['A general definition of a linear connection in noncommutative geometry has been recently proposed. Two examples are given of linear connections in noncommutative geometries which are based on matrix algebras. They both possess a unique metric connection.'] | ['1994-11-22'] |
16,415 | ['eng'] | ['Lo, H K'] | ['Order parameters for non-abelian gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'critical phenomena', 'Wilson loop', 'lattice field theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411133'] | ['Owing to subtle issues concerning quantum fluctuations and gauge fixing, a formulation of a general procedure to specify the realization of non-Abelian gauge symmetry has evaded all earlier attempts. In this Letter, we discuss these subtleties and present two sets of order parameters for non-Abelian gauge theories. S... | ['1994-11-22'] |
16,416 | ['eng'] | ['De Vega, H J', 'Giannakis, I', 'Nicolaidis, A'] | ['String in curved spacetimes'] | ['Particle Physics - Theory'] | ['gravitation', 'approximation, strong coupling', 'strong coupling, approximation', 'space-time', 'string model', 'quantization', 'constraint'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412081'] | ['We study quantum strings in strong gravitational fields. The relevant small parameter is g=R_c{\\sqrt T_0}, where R_c is the curvature of the spacetime and T_0 is the string tension. Within our systematic expansion we obtain to zeroth order the null string (string with zero tension), while the first order correction ... | ['1994-12-12'] |
16,417 | ['eng'] | ['Linde, Andrei D', 'Linde, D', 'Mezhlumian, A'] | ['Do we live in the center of the world?'] | ['Particle Physics - Theory'] | ['inflationary universe', 'energy, density', 'field theory, scalar'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411111'] | ['We investigate the distribution of energy density in a stationary self-reproducing inflationary universe. We show that the main fraction of volume of the universe in a state with a given density \\rho at any given moment of time t in synchronous coordinates is concentrated near the centers of deep exponentially wide ... | ['1994-11-22'] |
16,418 | ['eng'] | ['Vázquez-Bello, J L'] | ['Sp(2) covariant quantisation of general gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'fibre bundle', 'symmetry, Sp(2)', 'algebra, Becchi-Rouet-Stora', 'charge, conservation law', 'particle, relativistic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411107'] | ['{This letter studies the Sp(2) covariant quantisation of gauge theories. The geometrical interpretation of gauge theories in terms of quasi principal fibre bundles Q(M_S ,G_S) is reviewed. It is then described the Sp(2) algebra of ordinary Yang-Mills theory. A consistent formulation of covariant lagrangian quantisati... | ['1994-11-22'] |
16,419 | ['eng'] | ['Navarro-Salas, J', 'Navarro, M', 'Talavera, C F'] | ['Diffeomorphisms, noether charges and canonical formalism in 2D dilaton gravity'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, dilaton', 'dimension, 2', 'tensor, energy-momentum', 'charge, conservation law', 'Hamiltonian formalism', 'potential, symplectic', 'transformation, diffeomorphism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411105'] | ['We carry out a parallel study of the covariant phase space and the conservation laws of local symmetries in two-dimensional dilaton gravity. Our analysis is based on the fact that the Lagrangian can be brought to a form that vanishes on-shell giving rise to a well-defined covariant potential for the symplectic curren... | ['1994-11-22'] |
16,420 | ['eng'] | ['Tsokur, V A', 'Zinoviev, Yu M'] | ['Spontaneous supersymmetry breaking in N = 4 supergravity with matter'] | ['Particle Physics - Theory'] | ['supergravity', 'coupling, matter', 'matter, coupling', 'field theory, action', 'duality', 'supersymmetry, spontaneously broken'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411104'] | ['In this paper we consider the problem of spontaneous supersymmetry breaking in N=4 supergravity interacting with vector multiplets. We start with the ordinary version of such model with the scalar field geometry SU(1,1)/U(1)\\otimes SO(6,m)/SO(6)\\otimes SO(m). Then we construct a dual version of this theory with the... | ['1994-11-22'] |
16,421 | ['eng'] | ['Hessling, H'] | ['On the local equilibrium condition'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'thermodynamics', 'entropy', 'temperature', 'field theory, scalar', 'two-point function', 'interpretation of experiments'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411094'] | ["A physical system is in local equilibrium if it cannot be distinguished from a global equilibrium by ``infinitesimally localized measurements''. This should be a natural characterization of local equilibrium, but the problem is to give a precise meaning to the qualitative phrase ``infinitesimally localized measuremen... | ['1994-11-17'] |
16,422 | ['eng'] | ['Bergshoeff, E A'] | ['The Calogero model and the Virasoro symmetry'] | ['Particle Physics - Theory'] | ['algebra, Virasoro', 'algebra, representation', 'Knizhnik-Zamolodchikov equation', 'fermion number'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411093'] | ['We construct new realizations of the Virasoro algebra inspired by the Calogero model. The Virasoro algebra we find acts as a kind of spectrum-generating algebra of the Calogero model. We furthermore present the superextension of these results and introduce a class of higher-spin extensions of the Virasoro algebra whi... | ['1994-11-15'] |
16,423 | ['eng'] | ['Harvey, J A'] | ['Current directions in string theory and abstract supersymmetry'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'supersymmetry, superfield', 'astrophysics', 'black hole', 'gauge field theory, Yang-Mills'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411097'] | ['I discuss some current thoughts on how low-energy measurements and consistency constrain theories at high energies with emphasis on string theory. I also discuss some recent work on the dynamics of supersymmetric gauge theories.'] | ['1994-11-17'] |
16,424 | ['eng'] | ['Tsokur, V A', 'Zinoviev, Yu M'] | ['Spontaneous supersymmetry breaking in N=3 supergravity with matter'] | ['Particle Physics - Theory'] | ['supersymmetry, spontaneously broken', 'supergravity', 'coupling, matter', 'matter, coupling', 'multiplet, vector', 'vector, multiplet', 'field theory, scalar', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411096'] | ['In this paper we investigate the problem of spontaneous supersymmetry breaking without a cosmological term in N=3 supergravity with matter vector multiplets, scalar fields geometry being SU(3,m)/SU(3)\\otimes SU(m)\\otimes U(1). At first, we consider the case of minimal coupling with different possible gaugings (comp... | ['1994-11-15'] |
16,425 | ['eng'] | ['Migdal, A A'] | ['Second quantization of the Wilson loop'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'Wilson loop', 'quantization, 2', 'perturbation theory, higher-order', 'loop space', 'phase space, Fock space', 'scattering amplitude', 'hadron spectroscopy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411100'] | ['Treating the QCD Wilson loop as amplitude for the propagation of the first quantized particle we develop the second quantization of the same propagation. The operator of the particle position \\hat{\\cal X}_{\\mu} (the endpoint of the "open string") is introduced as a limit of the large N Hermitean matrix. We then de... | ['1994-11-17'] |
16,426 | ['eng'] | ['Witten, Edward'] | ['Monopoles and four-manifolds'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry', 'field equations, monopole', 'fibre bundle', 'differential forms', 'Donaldson theory', 'topology', 'field theory, Kaehler'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411102'] | ["Recent developments in the understanding of N=2 supersymmetric Yang-Mills theory in four dimensions suggest a new point of view about Donaldson theory of four manifolds: instead of defining four-manifold invariants by counting SU(2) instantons, one can define equivalent four-manifold invariants by counting solutions ... | ['1994-11-17'] |
16,427 | ['eng'] | ['Kuchiev, M Yu', 'Ioffe, A F'] | ['Polarization of instantons and gravity'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'gauge field theory, SO(4)', 'polarization, instanton', 'instanton, polarization', 'instanton, condensation', 'gauge field theory, excited state', 'Einstein equation', 'approximation, classical'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411090'] | ['Gravity can arise in a conventional non-Abelian gauge theory in which a specific phenomenon takes place. Suppose there is a condensation of polarized instantons and antiinstantons in the vacuum state. Then the excitations of the gauge field in the classical approximation are described through the variables of Riemann... | ['1994-11-14'] |
16,428 | ['eng'] | ['Sardanashvily, G'] | ['Five lectures on the jet methods in field theory'] | ['Particle Physics - Theory'] | ['lectures', 'gauge field theory', 'fibre bundle', 'jet', 'Lagrangian formalism', 'Hamiltonian formalism', 'differential geometry', 'electromagnetic field', 'field theory, Proca', 'matter', 'relativity theory, general', 'conservation law'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411089'] | ['The fibre bundle formulation of gauge theory is generally accepted. The jet manifold machinery completes this formulation and provides the adequate mathematical description of dynamics of fields represented by sections of fibre bundles. Theory of differential operators, Lagrangian and Hamiltonian formalisms on bundle... | ['1994-11-14'] |
16,429 | ['eng'] | ['Aoyama, H', 'Harano, T'] | ['Complex-time approach for semi-classical quantum tunneling'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'approximation, quasiclassical', 'tunneling', 'n-point function', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411086'] | ['The complex-time method for quantum tunneling is studied. In one-dimensional quantum mechanics, we construct a reduction formula for a Green function in the number of turning points based on the WKB approximation. This formula yields a series, which can be interpreted as a sum over the complex-time paths. The weights... | ['1994-11-14'] |
16,430 | ['eng'] | ['Nill, Florian', 'Wiesbrock, H W'] | ['A comment on Jones inclusions with infinite index'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'operator, algebra', 'algebra, von Neumann', 'algebra, Kac-Moody', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411084'] | ['Given an irreducible inclusion of infinite von-Neumann-algebras \\cn \\subset \\cm together with a conditional expectation E : \\cm \\rightarrow \\cm such that the inclusion has depth 2, we show quite explicitely how \\cn can be viewed as the fixed point algebra of \\cm w.r.t. an outer action of a compact Kac-algebra... | ['1994-11-14'] |
16,431 | ['eng'] | ['Hurth, Tobias'] | ['Nonabelian gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion', 'quantization', 'Hamiltonian formalism', 'invariance, gauge', 'causality', 'invariance, time reversal', 'invariance, charge conjugation', 'perturbation theory, higher-order', 'regularization', 'unitarity', 'phase space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411080'] | ['We present the causal construction of perturbative Yang-Mills theories in four (3+1)-dimensional space-time. We work with free quantum fields throughout so that all expressions are mathematically well-defined. The inductive causal method leads directly to the finite perturbation series and does not rely on an interme... | ['1994-11-15'] |
16,432 | ['eng'] | ['Chen, L', 'Dunne, G', 'Haller, K'] | ['Integer quantization of the Chern-Simons coefficient in a broken phase'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'Higgs model', 'dimension, 3', 'field theory, topological', 'field theory, massive', 'massive, field theory', 'symmetry, spontaneously broken', 'Chern-Simons term', 'propagator', 'perturbation theory, higher-order', 'coupling constant, quantization', 'quantization, coupling constant'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411062'] | ['We consider a spontaneously broken nonabelian topologically massive gauge theory in a broken phase possessing a residual nonabelian symmetry. Recently there has been some question concerning the renormalization of the Chern-Simons coefficient in such a broken phase. We show that, in this broken vacuum, the renormaliz... | ['1994-11-10'] |
16,433 | ['eng'] | ['Burnel, A', 'Caprasse, H', 'Dresse, A'] | ['Computing the BRST operator used in quantization of gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'quantization, constraint', 'Hamiltonian formalism', 'operator, Becchi-Rouet-Stora', 'operator, algebra', 'programming'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411058'] | ['It is shown that for a large class of non-holonomic quantum mechanical systems one can make the computation of BRST charge fully algorithmic. Two computer algebra programs written in the language of {\\tt REDUCE} are described. They are able to realize the complex calculations needed to determine the charge for gener... | ['1994-11-11'] |
16,434 | ['eng'] | ['Fujikawa, K'] | ['Phase operator for the photon field and an index theorem'] | ['Particle Physics - Theory'] | ['model, oscillator', 'index theorem', 'uncertainty relations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411066'] | ['An index relation dim\\ ker\\ a^{\\dagger}a - dim\\ ker\\ aa^{\\dagger} = 1 is satisfied by the creation and annihilation operators a^{\\dagger} and a of a harmonic oscillator. A hermitian phase operator, which inevitably leads to dim\\ ker\\ a^{\\dagger}a - dim\\ ker\\ aa^{\\dagger} = 0, cannot be consistently accom... | ['1994-11-14'] |
16,435 | ['eng'] | ['Jezierski, J'] | ['Asymptotic conformal Yano-Killing tensors for Schwarzschild metric'] | ['Particle Physics - Theory'] | ['space-time', 'transformation, conformal', 'field theory, tensor'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411074'] | ["The asymptotic conformal Yano--Killing tensor proposed in J. Jezierski, On the relation between metric and spin-2 formulation of linearized Einstein theory [GRG, in print (1994)] is analyzed for Schwarzschild metric and tensor equations defining this object are given. The result shows that the Schwarzschild metric (a... | ['1994-11-14'] |
16,436 | ['eng'] | ['Kalkkinen, J'] | ['Induced QCD from the noncommutative geometry of a supermanifold'] | ['Particle Physics - Theory'] | ['differential geometry, noncommutative', 'differential forms', 'supersymmetry, superspace', 'gauge field theory, Yang-Mills', 'quantum chromodynamics, induced'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411075'] | ["We study the noncommutative geometry of a two-leaf Parisi--Sourlas supermanifold in Connes' formalism using different K-cycles over the Grassmann algebra valued functions on the supermanifold. We find that the curvature of the trivial noncommutative vector bundle defines in the simplest case the super Yang--Mills act... | ['1994-11-14'] |
16,437 | ['eng'] | ['Bars, Itzhak'] | ['Folded strings in curved spacetime'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'space-time', 'field equations, solution', 'phase space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411078'] | ["Two dimensional classical string theory is solved in any curved spacetime. The complete spacetime required to describe the classical string motions turns out to be larger than the global space required by complete particle geodesics. The solutions are fully classified by their behavior in the asymptotically flat regi... | ['1994-11-14'] |
16,438 | ['eng'] | ['Argyres, Philip C'] | ['The vacuum structure and spectrum of N=2 supersymmetric SU(n) gauge theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'dimension, 2', 'vacuum state', 'moduli space', 'duality', 'field theory, monopole', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411057'] | ['We present an exact description of the metric on the moduli space of vacua and the spectrum of massive states for four dimensional N=2 supersymmetric SU(n) gauge theories. The moduli space of quantum vacua is identified with the moduli space of a special set of genus n-1 hyperelliptic Riemann surfaces.'] | ['1994-11-09'] |
16,439 | ['eng'] | ['Rama, S K'] | ['Singularities in graviton-dilaton system'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'postulated particle, graviton', 'postulated particle, dilaton', 'space-time, singularity', 'astrophysics, fundamental constant', 'string model', 'Brans-Dicke model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411076'] | ["Alternatives to Einstein's theory of general relativity can be distinguished by measuring the parametrised post Newtonian parameters. Two such parameters \\beta and \\gamma, equal to one in Einstein theory, can be obtained from static spherically symmetric solutions. For the graviton-dilaton system, as in Brans-Dicke... | ['1994-11-11'] |
16,440 | ['eng'] | ['Awata, H', 'Matsuo, Y', 'Odake, S', 'Shiraishi, J'] | ['Collective field theory, Calogero-Sutherland model and generalized matrix models'] | ['Particle Physics - Theory'] | ['matrix model', 'field theory, collective', 'partition function', 'operator, vertex', 'Hamiltonian formalism', 'energy levels', 'constraint, Virasoro', 'algebra, deformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411053'] | ['On the basis of the collective field method, we analyze the Calogero--Sutherland model (CSM) and the Selberg--Aomoto integral, which defines, in particular case, the partition function of the matrix models. Vertex operator realizations for some of the eigenstates (the Jack polynomials) of the CSM Hamiltonian are obta... | ['1994-11-09'] |
16,441 | ['eng'] | ['Sezgin, E'] | ['Spacetime and world volume supersymmetric super p-brane actions'] | ['Particle Physics - Theory'] | ['talk', 'membrane model, p-brane', 'supersymmetry', 'sigma model, nonlinear', 'particle, relativistic', 'twistor', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411055'] | ['We review the salient features of spacetime and worldvolume supersymmetric super p-brane actions. These are sigma models for maps from a worldvolume superspace to the target superspace. For p-branes, the symmetries of the model depend crucially on the existence of closed super (p+1)-forms on a worldvolume superspace,... | ['1994-11-10'] |
16,442 | ['eng'] | ['Gómez, C'] | ['Topology and strings'] | ['Particle Physics - Theory'] | ['lectures, Varenna 1994/06/28', 'string model', 'field theory, topological', 'cohomology, Becchi-Rouet-Stora', 'Landau-Ginzburg model', 'gravitation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411056'] | ['A review on topological strings and the geometry of the space of two dimensional theories. (Lectures given by C. Gomez at the Enrico Fermi Summer School, Varenna, July 1994)'] | ['1994-11-09'] |
16,443 | ['eng'] | ['Anselmi, D'] | ['Anomalies in instanton calculus'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'gauge field theory, topological', 'gauge field theory, instanton', 'anomaly', 'field equations, solution', 'path integral, measure', 'zero mode', 'transformation, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411049'] | ['I develop a formalism for solving topological field theories explicitly, in the case when the explicit expression of the instantons is known. I solve topological Yang-Mills theory with the k=1 Belavin {\\sl et al.} instanton and topological gravity with the Eguchi-Hanson instanton. It turns out that naively empty the... | ['1994-11-10'] |
16,444 | ['eng'] | ['Elizalde, E', 'Jacksenaev, A G', 'Odintsov, S D', 'Shapiro, I L'] | ['A four-dimensional theory for quantum gravity with conformal and nonconformal explicit solutions'] | ['Particle Physics - Theory'] | ['quantum gravity', 'field theory, scalar', 'effective action', 'regularization', 'field equations, solution', 'invariance, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412061', 'http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=.&id=SCAN-9411282'] | ['The most general version of a renormalizable d=4 theory corresponding to a dimensionless higher-derivative scalar field model in curved spacetime is explored. The classical action of the theory contains 12 independent functions, which are the generalized coupling constants of the theory. We calculate the one-loop bet... | ['1994-12-08'] |
16,445 | ['eng'] | ['Parthasarathy, R', 'Viswanathan, K S'] | ['Harmonic Gauss maps and self-dual equations in string theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SO(N)', 'dimension, 2', 'Riemann surfaces', 'transformation, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411043'] | ['The string world sheet, regarded as Riemann surface, in background R^3 and R^4 is described by the generalised Gauss map. When the Gauss map is harmonic or equivalently for surfaces of constant mean scalar curvature, we obtain an Abelian self-dual system, using SO(3) and SO(4) gauge fields constructed in our earlier ... | ['1994-11-07'] |
16,446 | ['eng'] | ['Avdeev, L V', 'Kazakov, D I', 'Kalmykov, M Yu'] | ['The background-field method and noninvariant renormalization'] | ['Particle Physics - Theory'] | ['background field', 'symmetry, transformation', 'regularization, dependence', 'renormalization, dependence', 'renormalization group, beta function', 'effective action', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411041'] | ['We investigate the consistency of the background-field formalism when applying various regularizations and renormalization schemes. By an example of a two-dimensional \\sigma model it is demonstrated that the background-field method gives incorrect results when the regularization (and/or renormalization) is noninvari... | ['1994-11-07'] |
16,447 | ['eng'] | ['Martín, C P', 'Ruiz, F R'] | ['Higher covariant derivative regulators and non-multiplicative renormalization'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'perturbation theory, higher-order', 'regularization, dimensional', 'dependence, gauge', 'transformation, Becchi-Rouet-Stora', 'renormalization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411030'] | ['The renormalization algorithm based on regularization methods with two regulators is analyzed by means of explicit computations. We show in particular that regularization by higher covariant derivative terms can be complemented with dimensional regularization to obtain a consistent renormalized 4-dimensional Yang-Mil... | ['1994-11-07'] |
16,448 | ['eng'] | ['West, Peter C'] | ['Physical states and string symmetries'] | ['Particle Physics - Theory'] | ['string model', 'operator, vertex', 'phase space', 'symmetry, transformation', 'approximation, lattice', 'dimension, 26'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411029'] | ['It is shown that if the momenta belong to an integral lattice, then every physical state of string theory leads to a symmetry of the scattering amplitudes. We discuss the role of this symmetry when the momenta are those provided by the usual D.D.F construction and show that the string compactified on the torus associ... | ['1994-11-07'] |
16,449 | ['eng'] | ['Viswanathan, K S', 'Parthasarathy, R'] | ['A conformal field theory of extrinsic geometry of 2-d surfaces'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Riemann surfaces', 'differential geometry', 'gravitation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411042'] | ['In the description of the extrinsic geometry of the string world sheet regarded as a conformal immersion of a 2-d surface in R^3, it was previously shown that, restricting to surfaces with h\\surd{g}\\ =\\ 1, where h is the mean scalar curvature and g is the determinant of the induced metric on the surface, leads to ... | ['1994-11-07'] |
16,450 | ['eng'] | ['Polchinski, Joseph'] | ['What is string theory?'] | ['Particle Physics - Theory'] | ['lectures, Les Houches 1994', 'string model', 'field theory, conformal', 'perturbation theory', 'operator product expansion', 'Ward identity', 'Riemann surfaces', 'anomaly, Weyl', 'quantization, Becchi-Rouet-Stora', 'vacuum state', 'duality', 'field theory, string', 'matrix model', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411028'] | ['The first part is an introduction to conformal field theory and string perturbation theory. The second part deals with the search for a deeper answer to the question posed in the title. Contents: 1. Conformal Field Theory 2. String Theory 3. Vacua and Dualities 4. String Field Theory or Not String Field Theory 5. Mat... | ['1994-11-08'] |
16,451 | ['eng'] | ['Douglas, M R'] | ['Stochastic master fields'] | ['Particle Physics - Theory'] | ['matrix model, stochastic', 'partition function', 'n-point function', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411025'] | ['We treat the stochastic equation for large N master fields proposed by Greensite and Halpern using a construction of master fields modelled after that of Voiculescu, and show that it contains the same information as the usual factorized Schwinger-Dyson equations.'] | ['1994-11-07'] |
16,452 | ['eng'] | ['Grigorian, G V', 'Grigorian, R P', 'Sarkisian, G'] | ['Pseudoclassical and quantum theory of the D=2n dimensional relativistic spinning particle with anomalous "magnetic" moment in the external Yang-Mills field'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'any-dimensional', 'spin', 'gauge field theory, Yang-Mills', 'external field', 'magnetic moment', 'Foldy-Wouthuysen transformation', 'quantization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411023'] | ['The pseudoclassical hamiltonian and action of the D=2n dimensional Dirac particle with anomalous magnetic moment interacting with the external Yang-Mills field are found. The Bargmann-Michel-Telegdi equation of motion for the Pauli-Lubanski vector is deduced. The canonical quantization of D=2n dimensional Dirac spinn... | ['1994-11-07'] |
16,453 | ['eng'] | ['Hands, S'] | ['O(1/n$_{f}$) corrections to the Thirring model in 2 < d < 4'] | ['Particle Physics - Theory'] | ['Thirring model', 'dimension, 2-4', 'fermion, flavor', 'expansion 1/N', 'propagator', 'perturbation theory, higher-order', 'regularization, Pauli-Villars'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411016'] | ["The Thirring model, that is, a relativistic field theory of fermions with a contact interaction between vector currents, is studied for dimensionalities 2<d<4 using the 1/N_f expansion, where N_f is the number of fermion species. The model is found to have no ultraviolet divergences at leading order provided a regula... | ['1994-11-03'] |
16,454 | ['eng'] | ['Gopakumar, R', 'Gross, David J'] | ['Mastering the master field'] | ['Particle Physics - Theory'] | ['matrix model', 'symmetry, U(N)', 'partition function', 'statistics', 'phase space, Hilbert space', 'operator, algebra', 'quantum chromodynamics', 'dimension, 2', 'Wilson loop', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411021'] | ['The basic concepts of non-commutative probability theory are reviewed and applied to the large N limit of matrix models. We argue that this is the appropriate framework for constructing the master field in terms of which large N theories can be written. We explicitly construct the master field in a number of cases in... | ['1994-11-03'] |
16,455 | ['eng'] | ['Thorlacius, L'] | ['Black hole evolution'] | ['Particle Physics - Theory'] | ['lectures', 'black hole, production', 'production, black hole', 'dimension, 2', 'approximation, quasiclassical', 'boundary condition', 'vacuum state, stability', 'string model', 'gravitation, dilaton', 'radiation, Hawking', 'invariance, conformal', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411020'] | ["Black hole formation and evaporation is studied in the semiclassical approximation in simple 1+1-dimensional models, with emphasis on issues related to Hawking's information paradox. Exact semiclassical solutions are described and questions of boundary conditions and vacuum stability are discussed. The validity of th... | ['1994-11-04'] |
16,456 | ['eng'] | ['La France, R'] | ["Gravity's rainbow"] | ['Particle Physics - Theory'] | ['relativity theory, general', 'electromagnetic field', 'effective action', 'optics, geometrical', 'equivalence principle', 'dispersion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411018'] | ['Limits for the applicability of the equivalence principle are considered in the context of low-energy effective field theories. In particular, we find a class of higher-derivative interactions for the gravitational and electromagnetic fields which produce dispersive photon propagation. The latter is illustrated by ca... | ['1994-11-03'] |
16,457 | ['eng'] | ['Periwal, V'] | ['Free energy decreases along Wilson renormalization group trajectories'] | ['Particle Physics - Theory'] | ['renormalization group, transformation', 'energy', 'dimension, >2', 'partition function', 'two-point function', 'spectral representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411019'] | ['The free energy is shown to decrease along Wilson renormalization group trajectories, in a dimension-independent fashion, for d>2. The argument assumes the monotonicity of the cutoff function, and positivity of a spectral representation of the two point function. The argument is valid to all orders in perturbation th... | ['1994-11-04'] |
16,458 | ['eng'] | ['Pasquinucci, A', 'Roland, K O'] | ['On the computation of one-loop amplitudes with external fermions in 4D heterotic superstrings'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude', 'operator, vertex', 'particle, spectra', 'spectra, particle', 'magnetic moment', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411015'] | ['We present the technical tools needed to compute any one-loop amplitude involving external spacetime fermions in a four-dimensional heterotic string model a` la Kawai-Lewellen-Tye. As an example, we compute the one-loop three-point amplitude with one "photon" and two external massive fermions ("electrons"). As a chec... | ['1994-11-03'] |
16,459 | ['eng'] | ['Antoniadis, Ignatios', 'Odintsov, S D'] | ['Renormalization group and logarithmic corrections to scaling relations in conformal sector of 4D gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'effective action', 'transformation, conformal', 'renormalization group', 'regularization, dimensional'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411012'] | ['We study the effective theory of the conformal factor near its infrared stable fixed point.The renormalization group equations for the effective coupling constants are found and their solutions near the critical point are obtained, providing the logarithmic corrections to scaling relations.Some cosmological applicati... | ['1994-11-03'] |
16,460 | ['eng'] | ['Bernard, D'] | ['Some simple (integrable) models of fractional statistics'] | ['Particle Physics - Theory'] | ['talk, Les Houches 1994/08/02', 'model, spin', 'spin, model', 'spin, statistics', 'statistics, spin', 'spin, fractional', 'fractional, spin', 'postulated particle, anyon', 'thermodynamics', 'Bethe ansatz'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411017'] | ['In the first part, we introduce the notion of fractional statistics in the sense of Haldane. We illustrate it on simple models related to anyon physics and to integrable models solvable by the Bethe ansatz. In the second part, we describe the properties of the long-range interacting spin chains. We describe its infin... | ['1994-11-04'] |
16,461 | ['eng'] | ['Li, Z B', 'Schülke, L', 'Zheng, B'] | ['Dynamic Monte Carlo measurement of critical exponents'] | ['Particle Physics - Theory'] | ['critical phenomena', 'scaling', 'Ising model', 'dimension, 2', 'lattice field theory', 'cumulant expansion', 'numerical calculations, Monte Carlo'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410234'] | ['Based on the scaling relation for the dynamics at the early time, a new method is proposed to measure both the static and dynamic critical exponents. The method is applied to the two dimensional Ising model. The results are in good agreement with the existing results. Since the measurement is carried out in the initi... | ['1994-11-01'] |
16,462 | ['eng'] | ['Wilson, K G'] | ['Chiral symmetry breaking and light-front QCD'] | ['Particle Physics - Theory'] | ['talk, Polona Zgorzelisko 1994/08/15', 'symmetry breaking, chiral', 'Hamiltonian formalism, canonical', 'quantum electrodynamics, light front', 'sigma model', 'zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411008'] | ["This paper consists of an overview of the discussions on chiral symmetry breaking followed by a transcript of the discussions themselves. (Based on discussions at ``Theory of Hadrons and Light-Front QCD,'' Polana Zgorzelisko, Poland, August 1994.)"] | ['1994-11-02'] |
16,463 | ['eng'] | ['Felder, G'] | ['Conformal blocks on elliptic curves and the Knizhnik-Zamolodchikov-Bernard equations'] | ['Particle Physics - Theory'] | ['Wess-Zumino-Witten model', 'Knizhnik-Zamolodchikov equation', 'fibre bundle', 'transformation, modular', 'symmetry, SL(2,Z)', 'invariance, Weyl', 'Yang-Baxter equation', 'algebra, Lie', 'mathematical methods, Theta function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411004'] | ["We give an explicit description of the vector bundle of WZW conformal blocks on elliptic curves with marked points as subbundle of a vector bundle of Weyl group invariant vector valued theta functions on a Cartan subalgebra. We give a partly conjectural characterization of this subbundle in terms of certain vanishing... | ['1994-11-02'] |
16,464 | ['eng'] | ['Radovanovic, V'] | ['Space-time geometry of three-dimensional Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'gauge field theory, Yang-Mills', 'dimension, 3', 'space-time', 'Chern-Simons term', 'gravitation, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411002'] | ['It is shown that the SU(2) Yang-Mills theory in 3-dimensional Riemann-Cartan space-time can be completely reformulated as a gravity-like theory in terms of gauge invariant variables. The resulting Yang-Mills induced equations are found, and it is demonstrated that they can be derived from a torsion-square type of act... | ['1994-11-02'] |
16,465 | ['eng'] | ['Wilson, K G'] | ['Light-front QCD and the constituent quark model'] | ['Particle Physics - Theory'] | ['talk, Zakopane 1994/08/13', 'quantum chromodynamics', 'quark', 'quantization, light front', 'potential, confinement', 'symmetry breaking, chiral', 'effective Hamiltonian', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411007'] | ["A general strategy is described for deriving a constituent approximation to QCD, inspired by the constituent quark model and based on light-front quantization. Some technical aspects of the approach are discussed, including a mechanism for obtaining a confining potential and ways in which spontaneous chiral symmetry ... | ['1994-11-02'] |
16,466 | ['eng'] | ['Alvarez, Enrique', 'Alvarez-Gaumé, Luís', 'Lozano, Y'] | ['An introduction to T-duality in string theory'] | ['Particle Physics - Theory'] | ['lectures', 'string model', 'duality, transformation', 'sigma model, nonlinear', 'effective action', 'anomaly', 'astrophysics, fundamental constant'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410237'] | ["In these lectures a general introduction to T-duality is given. In the abelian case the approaches of Buscher, and Rocek and Verlinde are reviewed. Buscher's prescription for the dilaton transformation is recovered from a careful definition of the gauge integration measure. It is also shown how duality can be underst... | ['1994-11-01'] |
16,467 | ['eng'] | ['Giesen, J'] | ['On a non-CP-violating electric dipole moment of elementary particles'] | ['Particle Physics - Theory'] | ['electric moment', 'Dirac equation', 'group theory, Poincare', 'group theory, representation', 'quantization', 'electromagnetic field, external field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410236'] | ["A description of elementary particles should be based on irreducible representations of the Poincar\\'e group. In the theory of massive representations of the full Poincar\\'e group there are essentially four different cases. One of them corresponds to the ordinary Dirac theory. The extension of Dirac theory to the r... | ['1994-11-01'] |
16,468 | ['eng'] | ['Llatas, P M', 'Roy, S'] | ['C$_{M}$ < 1 string theory as a constrained topological sigma model'] | ['Particle Physics - Theory'] | ['string model', 'sigma model, nonlinear', 'field theory, topological', 'central charge, <1', 'supersymmetry', 'charge, Becchi-Rouet-Stora', 'bosonization', 'operator product expansion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410233'] | ['It has been argued by Ishikawa and Kato that by making use of a specific bosonization, c_M=1 string theory can be regarded as a constrained topological sigma model. We generalize their construction for any (p,q) minimal model coupled to two dimensional (2d) gravity and show that the energy--momentum tensor and the to... | ['1994-11-01'] |
16,469 | ['eng'] | ['Duc, D V'] | ['Generalised q-deformed oscillators and their statistics'] | ['Particle Physics - Theory'] | ['algebra, oscillator', 'algebra, deformation', 'algebra, representation', 'spin, statistics', 'statistics, spin'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410232'] | ['We consider a version of generalised q-oscillators and some of their applications. The generalisation includes also "quons" of infinite statistics and deformed oscillators of parastatistics. The statistical distributions for different q-oscillators are derived for their corresponding Fock space representations. The d... | ['1994-11-01'] |
16,470 | ['eng'] | ['Sonoda, H'] | ['A scheme independent definition of $\\Lambda_{QCD}$'] | ['Particle Physics - Theory'] | ['quantum chromodynamics, Lambda parameter', 'renormalization group, beta function', 'coupling constant', 'operator product expansion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410242'] | ['Given a renormalization scheme of QCD, one can define a mass scale \\Lambda_{\\rm QCD} in terms of the beta function. Under a change of the renormalization scheme, however, \\Lambda_{\\rm QCD} changes by a multiplicative constant. We introduce a scheme independent \\Lambda_{\\rm QCD} using a connection on the space o... | ['1994-11-01'] |
16,471 | ['eng'] | ['Majid, S'] | ['Introduction to braided geometry and q-Minkowski space'] | ['Particle Physics - Theory'] | ['review', 'group theory, deformation', 'group theory, representation', 'braid group', 'R-matrix', 'group theory, Poincare', 'algebra, Hecke', 'differential forms', 'differential geometry', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410241'] | ["We present a systematic introduction to the geometry of linear braided spaces. These are versions of \\R^n in which the coordinates x_i have braid-statistics described by an R-matrix. From this starting point we survey the author's braided-approach to q-deformation: braided differentiation, exponentials, Gaussians, i... | ['1994-11-02'] |
16,472 | ['eng'] | ['Griffin, Paul A'] | ['Light front hamiltonian for transverse lattice QCD'] | ['Particle Physics - Theory'] | ['lectures, Zakopane 1994/08/15', 'gauge field theory, SU(2)', 'lattice field theory, transverse', 'dimension, 2', 'hadron, mass', 'mass, hadron', 'quantization, light front', 'Hamiltonian formalism', 'sigma model, nonlinear', 'symmetry, SU(2) x SU(2)', 'dimension, 2', 'form factor'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410243'] | ["A calculational framework for determining masses of low lying hadrons using light front quantization is discussed. The method is based upon four theoretical tools: discrete light cone quantization, which has been very successful in 1+1 dimensional models, a projector Monte Carlo method to extract low lying state data... | ['1994-11-01'] |
16,473 | ['eng'] | ['Robertson, D G'] | ['Light-cone quantization of electrodynamics'] | ['Particle Physics - Theory'] | ['talk, Zakopane 1994/08/15', 'quantum electrodynamics', 'quantization', 'light cone gauge', 'regularization', 'approximation, discrete', 'infrared problem'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410240'] | ["Light-cone quantization of (3+1)-dimensional electrodynamics is discussed, using discretization as an infrared regulator and paying careful attention to the interplay between gauge choice and boundary conditions. In the zero longitudinal momentum sector of the theory a general gauge fixing is performed and the corres... | ['1994-11-01'] |
16,474 | ['eng'] | ['Bergshoeff, E A', 'Kallosh, R', 'Ort, T'] | ['Duality versus supersymmetry and compactification'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'duality, transformation', 'spontaneous compactification'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410230'] | ['We study the interplay between T-duality, compactification and supersymmetry. We prove that when the original configuration has unbroken space-time supersymmetries, the dual configuration also does if a special condition is met: the Killing spinors of the original configuration have to be independent on the coordinat... | ['1994-10-31'] |
16,475 | ['eng'] | ['Gorsky, A S'] | ['Integrable many-body problems from the field theories'] | ['Particle Physics - Theory'] | ['talk, Alushta 1994/06/10', 'gauge field theory, Yang-Mills', 'dimension, 2', 'Hamiltonian formalism', 'fibre bundle', 'integrability', 'many-body problem', 'field theory, topological', 'duality, transformation', 'moduli space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410228'] | ['We review recent results which clarify the role of the integrable many-body problems in the quantum field theory framework.They describe the dynamics of the topological degrees of freedom in the theories which are obtained by perturbing the topological ones by the proper Hamiltonians and sources. Interpretation of th... | ['1994-11-02'] |
16,476 | ['eng'] | ['Hagen, C R', 'Park, D K'] | ['Relativistic Aharonov-Bohm-Coulomb problem'] | ['Particle Physics - Theory'] | ['Aharonov-Bohm effect, relativistic', 'coupling, scalar', 'scalar, coupling', 'coupling, vector', 'vector, coupling', 'flux tube', 'potential, Coulomb', 'spin, 1/2', '1/2, spin'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410225'] | ['-- The Aharonov-Bohm effect is analyzed for a spin-1/2 particle in the case that a 1/r potential is present. Scalar and vector couplings are each considered. It is found that the approach in which the flux tube is given a finite radius that is taken to zero only after a matching of boundary conditions does not give p... | ['1994-10-31'] |
16,477 | ['eng'] | ['Bianchi, M', 'Fucito, F', 'Rossi, G C', 'Martellini, M'] | ['String theory and ALE instantons'] | ['Particle Physics - Theory'] | ['talk, Trieste 1994/09/26', 'string model, heterotic', 'instanton', 'supersymmetry, symmetry breaking', 'fermion, condensation', 'supergravity', 'zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410222'] | ["We show that the classical equations of motion of the low-energy effective field theory describing the massless modes of the heterotic (or type I) string admit two classes of supersymmetric self--dual backgrounds. The first class, which was already considered in the literature, consists of solutions with a (conformal... | ['1994-10-31'] |
16,478 | ['eng'] | ['Sen-Gupta, K', 'Stern, A'] | ['4D edge currents from 5D Chern-Simons theory'] | ['Particle Physics - Theory'] | ['gauge field theory', 'Chern-Simons term', 'dimension, 5', 'field theory, scalar', 'field theory, vector', 'dimension, 4', 'diffeomorphism', 'current algebra', 'quantization', 'renormalization', 'algebra, Virasoro', 'constraint', 'effective Lagrangian'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410216'] | ['A class of two dimensional conformal field theories is known to correspond to three dimensional Chern-Simons theory. Here we claim that there is an analogous class of four dimensional field theories corresponding to five dimensional Chern-Simons theory. The four dimensional theories give a coupling between a scalar f... | ['1994-10-28'] |
16,479 | ['eng'] | ['Lowe, D A', 'Strominger, A'] | ['Strings near a Rindler or black hole horizon'] | ['Particle Physics - Theory'] | ['black hole, horizon', 'temperature, Rindler', 'string model, heterotic', 'boson, string', 'supersymmetry', 'transition, Hagedorn', 'partition function', 'space-time, Rindler'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410215'] | ['Orbifold techniques are used to study bosonic, type II and heterotic strings in Rindler space at integer multiples N of the Rindler temperature, and near a black hole horizon at integer multiples of the Hawking temperature, extending earlier results of Dabholkar. It is argued that a Hagedorn transition occurs nears t... | ['1994-10-28'] |
16,480 | ['eng'] | ['Jacquot, J L', 'Richert, J', 'Umezawa, M'] | ['Equations from non-linear chiral transformations'] | ['Particle Physics - Theory'] | ['transformation, nonlinear', 'symmetry, chiral', 'Ward-Takahashi identity', 'Jona-Lasinio-Nambu model', 'Dyson-Schwinger equation', 'Bethe-Salpeter equation', 'path integral, measure', 'effective potential', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410211'] | ['In comparison with the WT chiral identity which is indispensable for renormalization theory, relations deduced from the non-linear chiral transformation have a totally different physical significance. We wish to show that non-linear chiral transformations are powerful tools to deduce useful integral equations for pro... | ['1994-10-28'] |
16,481 | ['eng'] | ['Aldazabal, G', 'Font, A', 'Ibáñez, L E', 'Uranga, A M'] | ['String GUTs'] | ['Particle Physics - Theory'] | ['grand unified theory, SU(5)', 'grand unified theory, SO(10)', 'string model', 'lattice field theory', 'potential, Higgs', 'Higgs particle, mass difference', 'mass difference, Higgs particle', 'Wilson loop', 'algebra, Kac-Moody', 'supersymmetry', 'orbifold, spin(32)/Z(2)', 'spin(32)/Z(2), orbifold'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410206'] | ['Standard SUSY-GUTs such as those based on SU(5) or SO(10) lead to predictions for the values of \\alpha _s and sin^2\\theta _W in amazing agreement with experiment. In this article we investigate how these models may be obtained from string theory, thus bringing them into the only known consistent framework for quant... | ['1994-10-28'] |
16,482 | ['eng'] | ['Duff, Michael J'] | ['Classical/quantum duality'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'duality', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410210'] | ["String theory requires two kinds of loop expansion: classical (\\alpha') worldsheet loops with expansion parameter <T> where T is a modulus field, and quantum (\\hbar) spacetime loops with expansion parameter <S> where S is the dilaton field. Four-dimensional string/string duality (a corollary of ten-dimensional stri... | ['1994-10-28'] |
16,483 | ['eng'] | ['De Vega, H J', 'Larsen, A L', 'Sánchez, N'] | ['Semi-classical quantization of circular strings in de Sitter and anti de Sitter spacetimes'] | ['Particle Physics - Theory'] | ['space-time, de Sitter', 'space-time, anti-de Sitter', 'astrophysics, string', 'quantization', 'approximation, quasiclassical', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410219', 'http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=.&id=SCAN-9411083'] | ["We compute the {\\it exact} equation of state of circular strings in the (2+1) dimensional de Sitter (dS) and anti de Sitter (AdS) spacetimes, and analyze its properties for the different (oscillating, contracting and expanding) strings. The string equation of state has the perfect fluid form P=(\\gamma-1)E, with the... | ['1994-10-31'] |
16,484 | ['eng'] | ['Amorim, R', 'Barcelos-Neto, J'] | ['Extended axial model'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'fermion', 'current, axial', 'anomaly', 'path integral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410192'] | ['We study an extension of the axial model where local gauge symmetries are taken into account. The anomaly of the axial current is calculated by the Fujikawa formalism and the model is also solved. Besides the well known features of the particular models (axial and Schwinger) it was obtained an effective interaction o... | ['1994-10-27'] |
16,485 | ['eng'] | ['Buchholz, D A', "D'Antoni, C"] | ['Phase space properties of charged fields in theories of local observables'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'operator, algebra', 'charge', 'phase space, Hilbert space', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410185'] | ['Within the setting of algebraic quantum field theory a relation between phase-space properties of observables and charged fields is established. These properties are expressed in terms of compactness and nuclearity conditions which are the basis for the characterization of theories with physically reasonable causal a... | ['1994-10-26'] |
16,486 | ['eng'] | ['Strominger, A'] | ['Unitary rules for black hole evaporation'] | ['Particle Physics - Theory'] | ['black hole, production', 'production, black hole', 'black hole, decay', 'decay, black hole', 'radiation, Hawking', 'S-matrix, unitarity', 'energy, conservation law', 'astrophysics, string', 'superselection rule'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410187'] | ["Hawking has proposed non-unitary rules for computing the probabilistic outcome of black hole formation. It is shown that the usual interpretation of these rules violates the superposition principle and energy conservation. Refinements of Hawking's rules are found which restore both the superposition principle and ene... | ['1994-10-26'] |
16,487 | ['eng'] | ['Diego, O'] | ['On the universality of nonperturbative effects in stabilized 2D quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'matrix model', 'potential', 'vacuum state, stability', 'tunneling', 'universality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410196'] | ['In this letter I study the universality of the nonperturbative effects and the vacua structure of the stochastic stabilization of the matrix models which defines Pure 2D Quantum Gravity. I show also that there is not tunnelling, in the continuum limit, between the one-arc and three-arc solutions of the simplest matri... | ['1994-10-27'] |
16,488 | ['eng'] | ['Nagura, M'] | ['Mirror symmetry on arbitrary dimensional Calabi-Yau manifold with a few moduli'] | ['Particle Physics - Theory'] | ['field theory, Calabi-Yau', 'moduli space', 'fermion, mirror particle', 'coupling, Yukawa', 'Yukawa, coupling', 'differential equations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410177'] | ['We calculate the B-model on the mirror pair of X_{2N-2}(2,2,\\cdots,2,1,1) , which is an (N-2)-dimensional Calabi-Yau manifold and has two marginal operators i.e. h^{1,1}(X_{2N-2}(2,2,\\cdots,2,1,1))=2. In \\cite{nagandjin} we have discussed about mirror symmetry on X_N(1,1,\\cdots,1) and its mirror pair. However, X_... | ['1994-10-25'] |
16,489 | ['eng'] | ['Avan, J', 'Jevicki, A'] | ['Collective hamiltonians with Kac-Moody algebraic conditions'] | ['Particle Physics - Theory'] | ['matrix model', 'field theory, collective', 'Hamiltonian formalism', 'algebra, Kac-Moody', 'algebra, SL(N)', 'algebra, W(N)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410166'] | ['We describe the general framework for constructing collective--theory Hamiltonians whose hermicity requirements imply a Kac--Moody algebra of constraints on the associated Jacobian. We give explicit examples for the algebras sl(2)_k and sl(3)_k. The reduction to W_n--constraints, relevant to n-matrix models, is descr... | ['1994-10-24'] |
16,490 | ['eng'] | ['Lavrelashvili, G'] | ['Black holes and sphalerons in low energy effective string theory'] | ['Particle Physics - Theory'] | ['talk, Stanford 1994/07/24', 'string model', 'effective action', 'relativity theory, general', 'gauge field theory, Yang-Mills', 'field theory, dilaton', 'field equations, sphaleron', 'black hole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410183'] | ['Talk given at the 7th Marcel Grossmann Meeting on General Relativity, Stanford University, July 24-30, 1994.'] | ['1994-10-26'] |
16,491 | ['eng'] | ['Hirayama, M', 'Hamada, T', 'Chen, J'] | ['Distance formula for Grassmann manifold'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'uncertainty relations', 'linear spaces, Hilbert space', 'differential geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410227'] | ['The time-energy uncertainty relation of Anandan-Aharonov is generalized to a relation involving a set of quantum state vectors. This is achieved by obtaining an explicit formula for the distance between two finitely separated points in the Grassmann manifold.'] | ['1994-11-02'] |
16,492 | ['eng'] | ['Jackiw, R W'] | ['My encounters - as a physicist - with mathematics'] | ['Particle Physics - Theory'] | ['talk, Montreal 1994/10', 'field theory, history', 'field theory, soliton', 'differential geometry', 'topology', 'zero mode', 'index theorem', 'field equations, instanton', 'charge, fractional', 'particle physics'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410151', 'http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=.&id=SCAN-9411025'] | ["25th anniversary and new building dedication Centre de Recherches Math\\'{e}matiques Montr\\'{e}al, Canada, October 1994"] | ['1996-06-03'] |
16,493 | ['eng'] | ['Maiani, Luciano', 'Testa, M'] | ['Causality in local quantum field theory'] | ['Particle Physics - Theory'] | ['field theory, local', 'causality, violation', 'operator, unitarity', 'field theory, wave function', 'field theory, scalar', 'field theory, measurement', 'atom, excited state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410080'] | ['The problem of causality is analyzed in the context of Local Quantum Field Theory. Contrary to recent claims, it is shown that apparent noncausal behaviour is due to a lack of the the notion of sharp localizability for a relativistic quantum system.'] | ['1994-10-12'] |
16,494 | ['eng'] | ['Chung, T D'] | ["Unitarity, analytical time and Hawking's temperature"] | ['Particle Physics - Theory'] | ['quantum gravity', 'black hole', 'radiation, Hawking', 'unitarity', 'time'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410155'] | ["By analytically continuing the time variable in a black hole background, and requiring unitary evolution, it is found that quantum mechanical states at the horizon develop a thermal factor under suitable identification of the physical time. The thermal factor is found to be determined exactly by the Hawking's tempera... | ['1996-06-03'] |
16,495 | ['eng'] | ['Malik, R P'] | ['On q-deformed spinning relativistic particle'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'spin', 'space-time, deformation', 'quantum space', 'invariance, gauge', 'charge, conservation law', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410173'] | ['A q-deformed free spinning relativistic particle is discussed in the framework of the Lagrangian formalism. Three equivalent Lagrangians are obtained for this system which are endowed with q-deformed local (super)gauge symmetries and reparametrization invariance. It is demonstrated that these symmetries are on-shell ... | ['1994-10-24'] |
16,496 | ['eng'] | ['García-Compéan, H', 'Morales, L E', 'Plebanski, J F'] | ['A Hopf algebra structure in self-dual gravity'] | ['Particle Physics - Theory'] | ['gravitation', 'duality', 'dimension, 4', 'sigma model, nonlinear', 'dimension, 2', 'invariance, diffeomorphism', 'current algebra', 'algebra, Hopf'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410154'] | ["The two-dimensional non-linear sigma model approach to Self-dual Yang-Mills theory and to Self-dual gravity given by Q-Han Park is an example of the deep interplay between two and four dimensional physics. In particular, Husain's two-dimensional chiral model approach to Self-dual gravity is studied. We show that the ... | ['1996-06-03'] |
16,497 | ['eng'] | ['Hull, C M', 'Townsend, P K'] | ['Unity of superstring dualities'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'dimension, 10', 'spontaneous compactification', 'duality, transformation', 'group theory, E(7)', 'effective action', 'charge, quantization', 'energy, lower limit', 'field equations, soliton', 'moduli space', 'phase space', 'energy levels', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410167'] | ["The effective action for type II string theory compactified on a six torus is N=8 supergravity, which is known to have an E_{7} duality symmetry. We show that this is broken by quantum effects to a discrete subgroup, E_7(\\Z), which contains both the T-duality group SO(6,6;\\Z) and the S-duality group SL(2;\\Z). We p... | ['1994-10-24'] |
16,498 | ['eng'] | ["D'Hoker, E", 'Phong, D H'] | ['The box graph in superstring theory'] | ['Particle Physics - Theory'] | ['string model, closed', 'supersymmetry', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410152'] | ['In theories of closed oriented superstrings, the one loop amplitude is given by a single diagram, with the topology of a torus. Its interpretation had remained obscure, because it was formally real, converged only for purely imaginary values of the Mandelstam variables, and had to account for the singularities of bot... | ['1996-06-03'] |
16,499 | ['eng'] | ['Gates, S J'] | ['Why are there so many N = 4 superstrings?'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'multiplet, scalar', 'scalar, multiplet'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9410149'] | ['We demonstrate the existence of three off-shell distinct N = 4 superstrings at the level of manifest locally supersymmetric Lagrangian field theories on the world sheet.'] | ['1996-06-03'] |
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