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 |
|---|---|---|---|---|---|---|---|---|
15,100 | ['eng'] | ['Burgess, C P', 'Myers, R C', 'Quevedo, F'] | ['Four dimensional black holes and duality in superstring theory'] | ['Particle Physics - Theory'] | ['talk, Fredericton 1995/05/25', 'string model', 'supersymmetry', 'duality, transformation', 'dimension, 2', 'charge, conservation law', 'symmetry, rotational'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508092'] | ["Some recent results on the applications of duality (and related) transformations to general four-dimensional, spherically symmetric, asymptotically flat and time-independent string configurations are summarized. Two classes of results have been obtained. First, these transformations are used to generate the general s... | ['1995-08-21'] |
15,101 | ['eng'] | ['Duff, Michael J', 'Liu, J T', 'Rahmfeld, J'] | ['Four dimensional string/string/string triality'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'any-dimensional', 'duality, transformation', 'field theory, soliton', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508094'] | ["In six spacetime dimensions, the heterotic string is dual to a Type IIA string. On further toroidal compactification to four spacetime dimensions, the heterotic string acquires an SL(2,\\BbbZ)_S strong/weak coupling duality and an SL(2,\\BbbZ)_T \\times SL(2,\\BbbZ)_U target space duality acting on the dilaton/axion,... | ['1995-08-21'] |
15,102 | ['eng'] | ['Greitzer, E'] | ['A change of variables to the dual and factorization of composite anomalous jacobians'] | ['Particle Physics - Theory'] | ['string model', 'duality, transformation', 'path integral, determinant'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508095'] | ["Changes of variables giving {\\em the form} of the dual model are constructed explicitly for sigma-models without isotropy. In particular, the jacobian is calculated to give the known results. Considering the anomalous case, we infer by a consistency argument that the `multiplicative anomaly' should be replaceable by... | ['1995-08-21'] |
15,103 | ['eng'] | ['Dowker, John S'] | ['Spin on the 4-ball'] | ['Particle Physics - Theory'] | ['space-time, Euclidean', 'space-time, sphere', 'Dirac equation, solution', 'energy levels', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508082'] | ['Using known mode properties, the functional determinant for massless spin-half fields on the Euclidean 4-ball is calculated and shown to be different for spectral (nonlocal) and mixed (local) boundary conditions. The local result agrees with that from a conformal argument. Some higher-spin results are also given.'] | ['1995-08-18'] |
15,104 | ['eng'] | ['Dine, Michael'] | ['Coming to terms with strongly coupled strings'] | ['Particle Physics - Theory'] | ['talk, Los Angeles 1995/03/13', 'string model', 'supersymmetry', 'approximation, strong coupling', 'strong coupling, approximation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508085'] | ["The holomorphy of the superpotential along with symmetries gives very strong constraints on any stringy non-perturbative effects. This observation suggests an approach to string phenomenology. (Presented at ``Strings 95'', March 1995."] | ['1995-08-18'] |
15,105 | ['eng'] | ['Fernández-Pousa, C R', 'Miramontes, J L'] | ['The hamiltonian structure of soliton equations and deformed W-algebras'] | ['Particle Physics - Theory'] | ['Korteweg-de Vries equation, hierarchy', 'integrability', 'Hamiltonian formalism', 'differential equations, soliton', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508084'] | ["The Poisson bracket algebra corresponding to the {\\it second} Hamiltonian structure of a large class of generalized KdV and mKdV integrable hierarchies is carefully analysed. These algebras are known to have conformal properties, and their relation to \\cal W-algebras has previously been investigated in some particu... | ['1995-08-18'] |
15,106 | ['eng'] | ['Barci, D G', 'Fosco, C D', 'Oxman, L E'] | ['On bosonization in 3 dimensions'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'fermion', 'Chern-Simons term', 'dimension, 3', 'bosonization', 'path integral', 'effective action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508075'] | ['A recently proposed path-integral bosonization scheme for massive fermions in 3 dimensions is extended by keeping the full momentum-dependence of the one-loop vacuum polarization tensor. This makes it possible to discuss both the massive and massless fermion cases on an equal footing, and moreover the results it yiel... | ['1995-08-17'] |
15,107 | ['eng'] | ['Rossi, M', 'Flitney, A P'] | ['Symbolic algebra and renormalization of gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'operator, algebra', 'Feynman graph, higher-order', 'programming'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508074'] | ['Symbolic algebra relevant to the renormalization of gauge theories can be efficiently performed by machine using modern packages. We devise a scheme for representing and manipulating the objects involved in perturbative calculations of gauge theories. This scheme is readily implemented using the general purpose packa... | ['1995-08-17'] |
15,108 | ['eng'] | ['Capri, A Z', 'Kobayashi, M', 'Lamb, D J'] | ['Two observers calculate the trace anomaly'] | ['Particle Physics - Theory'] | ['space-time', 'field theory, scalar', 'field theory, massless', 'massless, field theory', 'anomaly, conformal', 'time', 'vacuum state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508077'] | ['We adapt a calculation due to Massacand and Schmid \\cite{1} to the coordinate independent definition of time and vacuum given by Capri and Roy \\cite{2} in order to compute the trace anomaly for a massless scalar field in a curved spacetime in 1+1 dimensions. The computation only requires normal ordering and yields ... | ['1995-08-17'] |
15,109 | ['eng'] | ['Adler, Stephen Louis', 'Millard, A C'] | ['Generalized quantum dynamics as pre-quantum mechanics'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'Hamiltonian formalism', 'operator, algebra', 'conservation law', 'partition function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508076'] | ['We address the issue of when generalized quantum dyanmics, based on a total trace Hamiltonian {\\bf H}, reduces to Heisenberg picture complex quantum mechanics. We begin by showing that when {\\bf H}={\\rm{\\bf Tr}} H_{OP}, with H_{OP} a Weyl ordered operator Hamiltonian, then the generalized quantum dynamics operato... | ['1995-08-17'] |
15,110 | ['eng'] | ['Kiritsis, Elias B', 'Kounnas, Costas'] | ['Infrared behavior of closed superstrings in strong magnetic and gravitational fields'] | ['Particle Physics - Theory'] | ['string model, closed', 'supersymmetry, ground state', 'magnetic field, background field', 'gravitation, background field', 'infrared problem', 'stability', 'sigma model', 'field theory, conformal', 'mass spectrum', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508078'] | ['A large class of four-dimensional supersymmetric ground states of closed superstrings with a non-zero mass gap are constructed. For such ground states we turn on chromo-magnetic fields as well as curvature. The exact spectrum as function of the chromo-magnetic fields and curvature is derived. We examine the behavior ... | ['1995-08-17'] |
15,111 | ['eng'] | ['Edelstein, J D', 'Giambiagi, J J', 'Núñez, C', 'Schaposnik, F A'] | ['An alternative dimensional reduction prescription'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'any-dimensional', 'dimensional reduction', 'propagator', 'fermion', 'partition function', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508070'] | ['We propose an alternative dimensional reduction prescription which in respect with Green functions corresponds to drop the extra spatial coordinate. From this, we construct the dimensionally reduced Lagrangians both for scalars and fermions, discussing bosonization and supersymmetry in the particular 2-dimensional ca... | ['1995-08-16'] |
15,112 | ['eng'] | ['Russo, Jorge G', 'Tseytlin, Arkady A'] | ['Magnetic flux tube models in superstring theory'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry, symmetry breaking', 'flux tube', 'stability', 'mass spectrum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508068'] | ["Superstring models describing curved 4-dimensional magnetic flux tube backgrounds are exactly solvable in terms of free fields. We consider the simplest model of this type (corresponding to `Kaluza-Klein' Melvin background). Its 2d action has a flat but topologically non-trivial 10-dimensional target space (there is ... | ['1995-08-16'] |
15,113 | ['eng'] | ['Ni, G J', 'Chen, S Q'] | ['Relation between space-time inversion and particle-antiparticle symmetry and the microscopic essence of special relativity'] | ['Particle Physics - Theory'] | ['space-time', 'parity, transformation', 'transformation, parity', 'time reversal, transformation', 'charge conjugation, transformation', 'spin, statistics', 'statistics, spin', 'fermion', 'Dirac equation', 'photon', 'relativity theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508069'] | ["After analyzing the implication of investigations on the C, P and T transformations since 1956, we propose that there is a basic symmetry in particle physics. The combined space-time inversion is equivalent to particle-antiparticle transformation, denoted by {\\cal PT=C}. It is shown that the relativistic quantum mec... | ['1995-08-29'] |
15,114 | ['eng'] | ['Banks, T', 'Dine, Michael'] | ['Quantum moduli spaces of N=1 string theories'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'path integral', 'renormalization group', 'potential', 'moduli space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508071'] | ['Generically, string models with N=1 supersymmetry are not expected to have moduli beyond perturbation theory; stringy non-perturbative effects as well as low energy field-theoretic phenomena such as gluino condensation will lift any flat directions. In this note, we describe models where some subspace of the moduli s... | ['1995-08-16'] |
15,115 | ['eng'] | ['Ferrara, Sergio', 'Kallosh, R', 'Strominger, A'] | ['N = 2 extremal black holes'] | ['Particle Physics - Theory'] | ['black hole, magnetic', 'supergravity', 'multiplet, vector', 'vector, multiplet', 'supersymmetry, soliton', 'potential, Kaehler', 'moduli space', 'space-time, geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508072'] | ['It is shown that extremal magnetic black hole solutions of N = 2 supergravity coupled to vector multiplets X^\\Lambda with a generic holomorphic prepotential F(X^\\Lambda) can be described as supersymmetric solitons which interpolate between maximally symmetric limiting solutions at spatial infinity and the horizon. ... | ['1995-08-16'] |
15,116 | ['eng'] | ['Finnell, D'] | ['Grand unification with three generations in free fermionic string models'] | ['Particle Physics - Theory'] | ['grand unified theory, SU(5)', 'grand unified theory, SO(10)', 'fermion, string model', 'gauge field theory, SO(10) x SO(10)', 'gauge field theory, SU(5) x SU(5)', 'family, 3'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508073'] | ['We examine the problem of constructing three generation free fermionic string models with grand unified gauge groups. We attempt the construction of G\\times G models, where G is a grand unified group realized at level 1. This structure allows those Higgs representations to appear which are necessary to break the sym... | ['1995-08-16'] |
15,117 | ['eng'] | ['Niemi, Antti J', 'Pasanen, P'] | ['On quantum cohomology and dynamical systems'] | ['Particle Physics - Theory'] | ['astrophysics', 'quantum gravity', 'Hamiltonian formalism', 'phase space', 'cohomology', 'transformation, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508067'] | ['We investigate aspects of quantum cohomology and Floer cohomology in the context of a generic classical Hamiltonian system. In particular, we show that Floer\'s instanton equation is related to a quantum Euler character in the quantum cohomology defined by topological nonlinear \\sigma-model. This relation is an infi... | ['1995-08-16'] |
15,118 | ['eng'] | ['Burgess, M'] | ['Quantum fields in disequilibrium'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'field theory, nonlocal', 'path integral', 'correlation function', 'dispersion relations', 'entropy', 'temperature'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508066'] | ["Using Schwinger's quantum action principle, dispersion relations are obtained for neutral scalar mesons interacting with bi-local sources. These relations are used as the basis of a method for representing the effect of interactions in the Gaussian approximation to field theory, and it is argued that a marked inhomog... | ['1995-08-16'] |
15,119 | ['eng'] | ['Lemes, V E R', 'Nogueira, A L M A', 'Helayël-Neto, José A'] | ['Supersymmetric generalization of the tensor matter fields'] | ['Particle Physics - Theory'] | ['gauge field theory, tensor', 'supersymmetry, superfield', 'field theory, action', 'supersymmetry, symmetry breaking'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508049'] | ['The supersymmetric generalization of a recently proposed abelian axial gauge model with antisymmetric tensor matter fields is presented.'] | ['1995-08-14'] |
15,120 | ['eng'] | ['Schilling, A'] | ['Polynomial fermionic forms for the branching functions of the rational coset conformal field theories s$\\widehat{u}$(2)$_{M}$ x s$\\widehat{u}$(2)$_{N}$/ s$\\widehat{u}$(2)$_{M+N}$'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'field theory, rational', 'coset space', 'operator, algebra', 'algebra, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508050'] | ['General polynomial fermionic expressions for the branching functions of the rational coset conformal field theories \\widehat{su}(2)_{M}\\tim es \\widehat{su}(2)_N/\\widehat{su}(2)_{M+N} are given. The equality of the bosonic and fermionic expressions for the branching functions is proven by showing that the fermioni... | ['1995-08-14'] |
15,121 | ['eng'] | ['Ichinose, S'] | ['Thermodynamic properties, phases and classical vacua of two dimensional R$^{2}$-gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'quantization, quasiclassical', 'partition function', 'vacuum state', 'thermodynamics', 'critical phenomena', 'temperature', 'entropy', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508060'] | ["Two dimensional quantum R^2-gravity is formulated in the semiclassical method. The thermodynamic properties,such as the equation of state, the temperature and the entropy, are explained. The topology constraint and the area constraint are properly taken into account. A total derivative term and an infrared regulariza... | ['1995-08-15'] |
15,122 | ['eng'] | ['Laciana, C E'] | ['Particle creation amplification in curved space due to thermal effects'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, scalar', 'finite temperature', 'space-time', 'particle, production', 'production, particle', 'quantization', 'Bogolyubov transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508051'] | ['A physical system composed by a scalar field minimally coupled to gravity and a thermal reservoir, as in thermo field dynamics, all of them in curved space time, is considered. When the formalism of thermo field dynamics is generalized to the above mentioned case, an amplification in the number of created particles i... | ['1995-08-14'] |
15,123 | ['eng'] | ['Lombardo, F C', 'Mazzitelli, F'] | ['Coarse graining and decoherence in quantum field theory'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'effective action', 'decoherence', 'master equation, density matrix', 'coupling, conformal', 'conformal, coupling', 'diffusion', 'space-time, Minkowski', 'space-time, de Sitter'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508052'] | ['We consider a \\lambda \\phi^4 theory in Minkowski spacetime. We compute a ``coarse grained effective action" by integrating out the field modes with wavelength shorter than a critical value. From this effective action we obtain the evolution equation for the reduced density matrix (master equation). We compute the d... | ['1995-08-14'] |
15,124 | ['eng'] | ['Sen, A', 'Vafa, C'] | ['Dual pairs of type II string compactification'] | ['Particle Physics - Theory'] | ['string model', 'spontaneous compactification', 'duality, transformation', 'field theory, torus', 'supersymmetry', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508064'] | ['Using a U-duality symmetry of type II compactification on T^4 represented by triality action on the T-duality group, and applying the adiabatic argument we construct dual pairs of type II compactifications in lower dimensions. The simplicity of this construction makes it an ideal set up for testing various conjecture... | ['1995-08-15'] |
15,125 | ['eng'] | ['Rabei, E M'] | ['An investigation of singular lagrangians as field systems'] | ['Particle Physics - Theory'] | ['quantization', 'constraint', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508063'] | ['The link between the treatment of singular lagrangians as field systems and the general approch is studied. It is shown that singular Lagrangians as field systems are always in exact agreement with the general approch. Two examples and the singular Lagrangian with zero rank Hessian matrix are studied. The equations o... | ['1995-08-15'] |
15,126 | ['eng'] | ['Mostafazadeh, A'] | ['Para-generalization of Peierls bracket quantization'] | ['Particle Physics - Theory'] | ['supersymmetry, algebra', 'statistics, parastatistics', 'quantization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508061'] | ['A convenient formalism is developed to treat classical dynamical systems involving (p=2) parafermionic and parabosonic dynamical variables. This is achieved via the introduction of a parabracket which summarizes the paracommutation relations of the corresponding Green components in a unified manner. Furthermore, it i... | ['1995-08-15'] |
15,127 | ['eng'] | ['Ichinose, S', 'Yukawa, T'] | ['Minbu distribution of two dimensional quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'partition function', 'approximation, quasiclassical', 'central charge, dependence', 'lattice field theory', 'numerical calculations, Monte Carlo'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508059'] | ['We analyse MINBU distribution of 2 dimensional quantum gravity. New data of R^2-gravity by the Monte Carlo simulation and its theoretical analysis by the semiclassical approach are presented. The cross-over phenomenon takes place at some size of the baby universe where the randomness competes with the smoothing force... | ['1995-08-15'] |
15,128 | ['eng'] | ["D'Alwis, S P"] | ['Remarks on supersymmetric effective actions and supersymmetry breaking'] | ['Particle Physics - Theory'] | ['supersymmetry', 'effective action', 'background field', 'path integral', 'transformation, Becchi-Rouet-Stora', 'model, composite', 'moduli space', 'gauge field theory, U(1)', 'Higgs model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508053'] | ['We discuss some issues related to the definition of different effective actions, in connection with the work on supersymmetric theories by Seiberg and collaborators. We also comment on the possibility of extending this work to broken supersymmetric theories.'] | ['1995-08-14'] |
15,129 | ['eng'] | ['Zucchini, R'] | ['Drinfeld-Sokolov gravity'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'field theory, Euclidean', 'algebra, W(N)', 'algebra, representation', 'Riemann surfaces, higher-order', 'effective action', 'field theory, ghost', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508054'] | ['A lagrangian euclidean model of Drinfeld--Sokolov (DS) reduction leading to general W--algebras on a Riemann surface of any genus is presented. The background geometry is given by the DS principal bundle K associated to a complex Lie group G and an SL(2,\\Bbb C) subgroup S. The basic fields are a hermitian fiber metr... | ['1995-08-14'] |
15,130 | ['eng'] | ['Itzhaki, N'] | ['Information loss in quantum gravity without black holes'] | ['Particle Physics - Theory'] | ['quantum gravity', 'approximation, weak field', 'entropy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508057'] | ['We use the weak field approximation to show that information is lost in principle in quantum gravity.'] | ['1995-08-14'] |
15,131 | ['eng'] | ['Gomis, J P', 'Kamimura, K', 'Pons, J M', 'Zamora, Frederic'] | ['One loop anomalies and Wess-Zumino terms for general gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, antifield', 'Wess-Zumino term', 'anomaly', 'regularization, Pauli-Villars', 'effective action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509012'] | ['One loop anomalies and their dependence on antifields for general gauge theories are investigated within a Pauli-Villars regularization scheme. For on-shell theories {\\it i.e.}, with open algebras or on-shell reducible theories, the antifield dependence is cohomologically non trivial. The associated Wess-Zumino term... | ['1995-09-05'] |
15,132 | ['eng'] | ['Banerjee, H'] | ['Resolution of the strong CP and U(1) problems'] | ['Particle Physics - Theory'] | ['lectures, Santiniketan 1994/12/28', 'operator, Dirac', 'determinant', 'strong interaction, CP', 'CP, strong interaction', 'U(1) problem', 'quantum chromodynamics', 'anomaly, chiral', 'fermion, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508065'] | ['Definition of the determinant of Euclidean Dirac operator in the nontrivial sector of gauge fields suffers from an inherent ambiguity. The popular Osterwalder-Schrader (OS) recipe for the conjugate Dirac field leads to the option of a vanishing determinant. We propose a novel representation for the conjugate field wh... | ['1995-08-15'] |
15,133 | ['eng'] | ['Bilal, Adel'] | ['Consistent string backgrounds and completely integrable 2D field theories'] | ['Particle Physics - Theory'] | ['talk', 'sigma model, nonlinear', 'dimension, 2', 'field theory, Toda', 'string model', 'background field', 'Wess-Zumino-Witten model', 'renormalization group, beta function', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508062'] | ['After reviewing the \\beta-function equations for consistent string backgrounds in the \\sigma-model approach, including metric and antisymmetric tensor, dilaton and tachyon potential, we apply this formalism to WZW models. We particularly emphasize the case where the WZW model is perturbed by an integrable marginal ... | ['1995-08-15'] |
15,134 | ['eng'] | ['Krahe, F'] | ['A causal approach to massive Yang-Mills theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'field theory, massive', 'massive, field theory', 'quantization', 'Hamiltonian formalism', 'causality', 'coupling, matter', 'matter, coupling', 'S-matrix', 'unitarity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508038'] | ['We study quantized Yang-Mills theory with massive vector fields in the framework of causal perturbation theory. The most general form of the interaction which is invariant under operator gauge transformations is pointed out. The generator of these transformations generally fails to be nilpotent. This defect, however,... | ['1995-08-10'] |
15,135 | ['eng'] | ['Azcoiti, V', 'Laliena, V', 'Luo, X Q'] | ['Spontaneous symmetry breaking in fermion-gauge systems'] | ['Particle Physics - Theory'] | ['symmetry, spontaneously broken', 'symmetry, chiral', 'fermion, lattice field theory', 'gauge field theory, ground state', 'fermion, condensation', 'Schwinger model', 'effect, finite size', 'scaling'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509091'] | ["We propose a new method for the study of the chiral properties of the ground state in QFT's based on the computation of the probability distribution function of the chiral condensate. It can be applied directly in the chiral limit and therefore no mass extrapolations are needed. Furthermore this approach allows to wr... | ['1995-09-19'] |
15,136 | ['eng'] | ['Lambert, N D'] | ['Quantizing the (0,4) supersymmetric ADHM sigma model'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'supersymmetry', 'dimension, 2', 'quantization', 'effective action', 'renormalization', 'field theory, instanton', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508039'] | ['We discuss the quantization of the ADHM sigma model. We show that the only quantum contributions to the effective theory come from the chiral anomalies and compute the first and second order terms. Finally the limit of vanishing instanton size is discussed.'] | ['1995-08-10'] |
15,137 | ['eng'] | ['Cvetic, M', 'Youm, D'] | ['BPS saturated and non-extreme states in abelian Kaluza-Klein theory and effective N=4 supersymmetric string vacua'] | ['Particle Physics - Theory'] | ['Kaluza-Klein model, abelian', 'dimension, >4', 'symmetry, rotational', 'black hole', 'field theory, dyon', 'field equations, solution', 'string model', 'supersymmetry', 'vacuum state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508058'] | ["We summarize results for all four-dimensional Bogomol'nyi-Sommerfield-Prasat (BPS) saturated and non-extreme solutions of the (4+n)-dimensional Abelian Kaluza-Klein theory. Within effective N=4 supersymmetric string vacua, parameterized in terms of fields of the heterotic string on a six-torus, we then present a clas... | ['1995-08-14'] |
15,138 | ['eng'] | ['Damgaard, P H', 'De Jonghe, F', 'Bering, K'] | ['Sp(2)-symmetric lagrangian BRST quantization'] | ['Particle Physics - Theory'] | ['quantization', 'Hamiltonian formalism', 'transformation, Becchi-Rouet-Stora', 'symmetry, Sp(2)', 'Dyson-Schwinger equation', 'Ward identity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508034'] | ['One Lagrangian BRST quantization principle is that of imposing correct Schwinger-Dyson equations through the BRST Ward identities. In this paper we show how to derive the analogous Sp(2)-symmetric quantization condition in flat coordinates from an underlying Sp(2)-symmetric Schwinger-Dyson BRST symmetry. We also show... | ['1995-08-09'] |
15,139 | ['eng'] | ['Dimakis, A', 'Tzanakis, C'] | ['Non-commutative geometry and kinetic theory of open systems'] | ['Particle Physics - Theory'] | ['statistical mechanics', 'Fokker-Planck equation', 'field equations, Liouville', 'differential geometry, symplectic', 'differential geometry, noncommutative'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508035'] | ['The basic mathematical assumptions for autonomous linear kinetic equations for a classical system are formulated, leading to the conclusion that if they are differential equations on its phase space M, they are at most of the 2nd order. For open systems interacting with a bath at canonical equilibrium they have a par... | ['1995-08-09'] |
15,140 | ['eng'] | ['Gambini, R', 'Obregón, O', 'Pullin, J'] | ['Towards a loop representation for quantum canonical supergravity'] | ['Particle Physics - Theory'] | ['supergravity', 'quantum gravity', 'loop space', 'knot theory', 'constraint, solution', 'group theory, GSU(2)', 'Wilson loop', 'Wheeler-DeWitt equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508036'] | ['We study several aspects of the canonical quantization of supergravity in terms of the Asthekar variables. We cast the theory in terms of a GSU(2) connection and we introduce a loop representation. The solution space is remarkably similar to the loop representation of ordinary gravity, the main difference being the f... | ['1995-08-09'] |
15,141 | ['eng'] | ['Lü, H', 'Pope, C N', 'Sezgin, E', 'Stelle, Kellogg S'] | ['Stainless super p-branes'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'supersymmetry', 'supergravity', 'dimensional reduction', 'Kaluza-Klein model', 'field theory, soliton', 'zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508042'] | ["The elementary and solitonic supersymmetric p-brane solutions to supergravity theories form families related by dimensional reduction, each headed by a maximal (`stainless') member that cannot be isotropically dimensionally oxidized into higher dimensions. We find several new families, headed by stainless solutions i... | ['1995-08-10'] |
15,142 | ['eng'] | ['Giveon, Amit', 'Ro, M'] | ['Effective actions and gauge field stability'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'effective action', 'moduli space', 'stability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508043'] | ['By studying an effective action description of the coupling of charged gauge fields in N=2 SU(n) supersymmetric Yang-Mills theories, we can describe regions of moduli space where one or more of these fields becomes unphysical. We discuss subtleties in the structure of the moduli space for SU(3).'] | ['1995-08-10'] |
15,143 | ['eng'] | ['Khuri, R R', 'Myers, R C'] | ['Dynamics of extreme black holes and massive string states'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'black hole', 'scattering amplitude'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508045'] | ['In a recent paper, Duff and Rahmfeld argued that certain massive N_R=1/2 states of the four-dimensional heterotic string correspond to extreme black hole solutions. We provide further, dynamical, evidence for this identification by comparing the scattering of these elementary string states with that of the correspond... | ['1995-08-10'] |
15,144 | ['eng'] | ['Acharya, B S'] | ['N=1 heterotic-supergravity duality and Joyce manifolds'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'field theory, orbifold', 'supergravity', 'dimension, 11', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508046'] | ['We construct the heterotic dual theory in four dimensions of eleven dimensional supergravity compactified on a particular Joyce manifold, J. In particular, J is constructed from resolving fixed point singularities of orbifolds of the seven torus in such a way that one is forced to consider a generalised orbifold on t... | ['1995-08-11'] |
15,145 | ['eng'] | ['Fiore, G', 'Schupp, P'] | ['Identical particles and quantum symmetries'] | ['Particle Physics - Theory'] | ['spin, statistics', 'statistics, spin', 'operator, algebra', 'quantum group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508047'] | ["We propose a solution to the problem of compatibility of Bose-Fermi statistics with symmetry transformations implemented by quantum groups of Drinfel'd type. We use unitary transformations to conjugate multiparticle symmetry postulates."] | ['1995-08-11'] |
15,146 | ['eng'] | ['Aldazabal, G', 'Font, A', 'Ibáñez, L E', 'Uranga, A M'] | ['Building GUTs from strings'] | ['Particle Physics - Theory'] | ['grand unified theory, SO(10)', 'string model', 'dimension, 4', 'field theory, orbifold', 'grand unified theory, SU(5)', 'partition function', 'mass spectrum', 'invariance, modular', 'selection rule'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508033'] | ['We study in detail the structure of Grand Unified Theories derived as the low-energy limit of orbifold four-dimensional strings. To this aim, new techniques for building level-two symmetric orbifold theories are presented. New classes of GUTs in the context of symmetric orbifolds are then constructed. The method of p... | ['1995-08-08'] |
15,147 | ['eng'] | ['Ennes, I P', 'Isidro, J M', 'Ramallo, A V'] | ['The BRST symmetry of affine Lie superalgebras and non-critical strings'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'field theory, topological', 'dimension, 2', 'invariance, Becchi-Rouet-Stora', 'algebra, Lie', 'algebra, affine', 'supersymmetry, algebra', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508030'] | ['The topological field theories associated with affine Lie superalgebras are constructed. Their BRST symmetry is characterised by a Kazama algebra containing spin 1, 2 and 3 operators and closes linearly. Under this symmetry all operators are grouped into BRST doublets. The relation between the models constructed and ... | ['1995-08-08'] |
15,148 | ['eng'] | ['Viet, N A', 'Wali, C'] | ['A discretized version of Kaluza-Klein theory with torsion and massive fields'] | ['Particle Physics - Theory'] | ['Kaluza-Klein model', 'dimension, 5', 'geometry, noncommutative', 'torsion', 'differential forms', 'space, discrete'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508032'] | ['We consider an internal space of two discrete points in the fifth dimension of the Kaluza-Klein theory by using the formalism of noncommutative geometry developed in a previous paper \\cite{VIWA} of a spacetime supplemented by two discrete points. With the nonvanishing internal torsion 2-form there are no constraints... | ['1995-08-08'] |
15,149 | ['eng'] | ['Müller, U'] | ['A basis for invariants in non-abelian gauge theories'] | ['Particle Physics - Theory'] | ['talk', 'field theory, scalar', 'gauge field theory, nonabelian', 'mathematical methods, geometrical'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508031'] | ['An algorithm is described to convert Lorentz and gauge invariant expressions in non--Abelian gauge theories with matter into a standard form, consisting of a linear combination of basis invariants. This algorithm is needed for computer calculations of effective actions. The defining properties of the basis invariants... | ['1995-08-08'] |
15,150 | ['eng'] | ['Koga, J I', 'Maeda, K I'] | ['Evaporation and fate of dilatonic black holes'] | ['Particle Physics - Theory'] | ['black hole, charge', 'black hole, rotator', 'coupling constant, dilaton', 'dilaton, coupling constant', 'Kaluza-Klein model', 'radiation, Hawking', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508029'] | [] | ['1995-08-10'] |
15,151 | ['eng'] | ['Korchemsky, G P'] | ['Quasiclassical QCD pomeron'] | ['Particle Physics - Theory'] | ['quantum chromodynamics, perturbation theory', 'scattering amplitude', 'Regge poles', 'gluon, Regge', 'color, singlet', 'effective Hamiltonian', 'model, pomeron', 'Heisenberg model', 'Bethe ansatz', 'charge, quantization', 'quantum number, fine structure', 'approximation, quasiclassical', 'energy', 'asymptotic expansi... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508025'] | ['The Regge behaviour of the scattering amplitudes in perturbative QCD is governed in the generalized leading logarithmic approximation by the contribution of the color--singlet compound states of Reggeized gluons. The interaction between Reggeons is described by the effective hamiltonian, which in the multi--color lim... | ['1995-08-07'] |
15,152 | ['eng'] | ['Noguchi, M', 'Yang, S K'] | ['Non scale-invariant topological Landau-Ginzburg models'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'sigma model, nonlinear', 'field theory, topological', 'Landau-Ginzburg model', 'supersymmetry', 'effective action', 'Witten index', 'correlation function', 'field equations', 'quantum group, cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508026'] | ['The Landau-Ginzburg formulation of two-dimensional topological sigma models on the target space with positive first Chern class is considered. The effective Landau-Ginzburg superpotential takes the form of logarithmic type which is characteristic of supersymmetric theories with the mass gap. The equations of motion y... | ['1995-08-07'] |
15,153 | ['eng'] | ['Lozano, Y'] | ['S-duality in gauge theories as a canonical transformation'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'field theory, Euclidean', 'duality, transformation', 'Hamiltonian formalism', 'differential forms', 'partition function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508021'] | ['We show that S-duality in four dimensional non-supersymmetric gauge theories can be formulated as a canonical transformation in the phase space of the theory. It is shown that in phase space the modular anomaly emerges as the result of integrating out the momenta degrees of freedom. In the case of non-abelian gauge t... | ['1995-08-07'] |
15,154 | ['eng'] | ['De Vos, K', 'Van Driel, P'] | ['The Kazhdan-Lusztig conjecture for W-algebras'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'algebra, representation', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508020'] | ['The main result in this paper is the character formula for arbitrary irreducible highest weight modules of W algebras. The key ingredient is the functor provided by quantum Hamiltonian reduction, that constructs the W algebras from affine Kac-Moody algebras and in a similar fashion W modules from KM modules. Assuming... | ['1995-08-07'] |
15,155 | ['eng'] | ['Rodr, S'] | ['Examples of q-regularization'] | ['Particle Physics - Theory'] | ['quantization', 'algebra, Heisenberg', 'algebra, deformation', 'algebra, Hopf', 'regularization', 'quantum group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508019'] | ['An Introduction to Hopf algebras as a tool for the regularization of relavent quantities in quantum field theory is given. We deform algebraic spaces by introducing q as a regulator of a non-commutative and non-cocommutative Hopf algebra. Relevant quantities are finite provided q\\neq 1 and diverge in the limit q\\ri... | ['1995-08-07'] |
15,156 | ['eng'] | ['Fiore, G', 'Modanese, G'] | ['General properties of the decay amplitudes for massless particles'] | ['Particle Physics - Theory'] | ['particle, massless', 'massless, particle', 'particle, decay', 'decay, particle', 'amplitude analysis, decay', 'decay, amplitude analysis', 'kinematics', 'infrared problem, regularization', 'quantum electrodynamics', 'gauge field theory, Yang-Mills', 'quantum gravity', 'Ward identity', 'vertex function', 'gauge boson,... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508018'] | ['We derive the kinematical constraints which characterize the decay of any massless particle in flat spacetime. We show that in perturbation theory the decay probabilities of photons and Yang-Mills bosons vanish to all orders; the decay probability of the graviton vanishes to one-loop order for graviton loops and to a... | ['1995-08-07'] |
15,157 | ['eng'] | ['Brower, R C', 'Campostrini, M', 'Orginos, K', 'Rossi, P', 'Tan, C I', 'Vicari, E'] | ['Critical behavior of simplicial chiral models'] | ['Particle Physics - Theory'] | ['model, spin', 'spin, model', 'model, chiral', 'lattice field theory, simplex', 'effective action', 'symmetry, O(N)', 'expansion 1/N', 'energy, internal', 'saddle-point approximation', 'expansion, weak coupling', 'weak coupling, expansion', 'expansion, strong coupling', 'strong coupling, expansion', 'critical phenomen... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508015'] | ['The large-N saddle-point equations for the principal chiral models defined on a d-1 dimensional simplex are derived from the external field problem for unitary integrals. The saddle point equation are studied analytically and numerically in many relevant instances, including d=4 and d\\rightarrow\\infty, with special... | ['1995-08-07'] |
15,158 | ['eng'] | ['Lavrelashvili, G'] | ['Gravitating, gravitational and dilatonic sphalerons'] | ['Particle Physics - Theory'] | ['talk, Winnipeg 1994/08/02', 'gauge field theory, Yang-Mills', 'Higgs model', 'field theory, sphaleron', 'relativity theory, general'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508024'] | ['This is a brief review of the main properties of sphalerons in various theories with a Yang--Mills field. Talk given at the Heat Kernel Techniques and Quantum Gravity, Winnipeg, Canada, August 2-6, 1994.'] | ['1995-08-07'] |
15,159 | ['eng'] | ['Cai, Y', 'Guo, H Y', 'Gao, D N'] | ['Intrinsic regularization method in QCD'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'perturbation theory, higher-order', 'regularization', 'renormalization', 'propagator', 'Slavnov identity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508028'] | ['There exist certain intrinsic relations between the ultraviolet divergent graphs and the convergent ones at the same loop order in renormalizable quantum field theories. Whereupon we may establish a new method, the intrinsic regularization method, to regularize those divergent graphs. In this paper, we apply this met... | ['1995-08-07'] |
15,160 | ['eng'] | ['Soloviev, V O'] | ['Total divergences in hamiltonian formalism of field theory'] | ['Particle Physics - Theory'] | ['talk, Protvino 1994/06/27', 'Hamiltonian formalism', 'path integral', 'operator, algebra', 'current, conservation law', 'boundary condition'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508023'] | ['In this report it is proposed to generalize the definition of Poisson brackets in order to treat spatial integrals of divergences as Hamiltonians which generate a kind of Hamiltonian equations on the boundary. Nonlinear Schrodinger equation is used as an illustrative example.'] | ['1995-08-07'] |
15,161 | ['eng'] | ['De Leo, S'] | ['One component Dirac equation'] | ['Particle Physics - Theory'] | ['Dirac equation, solution', 'mathematical methods, geometrical', 'algebra, quaternion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508010'] | ['We develop a relativistic free wave equation on the complexified quaternions, linear in the derivatives. Even if the wave functions are only one-component, we show that four independent solutions, corresponding to those of the Dirac equation, exist. A partial set of translations between complex and complexified quate... | ['1995-08-04'] |
15,162 | ['eng'] | ['Ueno, T'] | ['Integrable field theories derived from 4D self-dual gravity'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'differential forms', 'Einstein equation', 'duality', 'Wess-Zumino term', 'sigma model, nonlinear'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508012'] | ['We reformulate the self-dual Einstein equation as a trio of differential form equations for simple two-forms. Using them, we can quickly show the equivalence of the theory and 2D sigma models valued in infinite-dimensional group, which was shown by Park and Husain earlier. We also derive other field theories includin... | ['1995-08-04'] |
15,163 | ['eng'] | ['Periwal, V'] | ['Anisotropy beta functions'] | ['Particle Physics - Theory'] | ['phi**n model, 3', 'dimension, 6', 'renormalization group', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508014'] | ['The flow of couplings under anisotropic scaling of momenta is computed in \\phi^3 theory in 6 dimensions. It is shown that the coupling decreases as momenta of two of the particles become large, keeping the third momentum fixed, but at a slower rate than the decrease of the coupling if all three momenta become large ... | ['1995-08-04'] |
15,164 | ['eng'] | ['Beccaria, M'] | ['Monte Carlo study of exact S-matrix duality in non simply laced affine Toda theories'] | ['Particle Physics - Theory'] | ['field theory, Toda', 'field theory, affine', 'S-matrix, duality', 'mass ratio', 'coupling, dependence', 'dependence, coupling', 'bootstrap', 'lattice field theory', 'two-point function', 'numerical calculations, Monte Carlo'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508007'] | ['The (g_2^{(1)}, d_4^{(3)})\\ pair of non simply laced affine Toda theories is studied from the point of view of non perturbative duality. The classical spectrum of each member is composed of two massive scalar particles. The exact S-matrix prediction for the dual behaviour of the coupling dependent mass ratio is foun... | ['1995-08-03'] |
15,165 | ['eng'] | ['Bertola, M', 'Gorini, V', 'Zeni, M'] | ['Quantized temperatures spectra in curved spacetimes'] | ['Particle Physics - Theory'] | ['space-time', 'field theory, scalar', 'quantization', 'finite temperature', 'two-point function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508004'] | ['We consider the thermal properties of a scalar field theory on curved spacetimes. In particular, we argue for the existence in the de Sitter, Kruskal and Rindler manifolds of a discrete spectrum of allowed temperatures (the odd multiples of a fundamental one). For each temperature we give an explicit construction of ... | ['1995-08-03'] |
15,166 | ['eng'] | ['Langmann, E'] | ['Descent equations of Yang-Mills anomalies in noncommutative geometry'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'fermion', 'differential geometry, noncommutative', 'differential forms', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508003'] | ["Consistent Yang--Mills anomalies \\int\\omega_{2n-k}^{k-1} (n=1,2,\\ldots, k=1,2, \\ldots ,2n) as described collectively by Zumino's descent equations are considered. A generalization in the spirit of Connes' noncommutative geometry using a minimum of data is found. For an arbitrary graded differential algebra \\CC=\... | ['1995-08-03'] |
15,167 | ['eng'] | ['Ahn, C', 'Ivanov, E', 'Sorin, A'] | ['N=2 affine superalgebras and hamiltonian reduction in N=2 superspace'] | ['Particle Physics - Theory'] | ['supersymmetry, superspace', 'supersymmetry, algebra', 'current algebra', 'operator product expansion', 'algebra, SL(N/M)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508005'] | ['We construct N=2 affine current algebras for the superalgebras sl(n|n-1)^{(1)} in terms of N=2 supercurrents subjected to nonlinear constraints and discuss the general procedure of the hamiltonian reduction in N=2 superspace at the classical level. We consider in detail the simplest case of N=2 sl(2|1)^{(1)} and show... | ['1995-08-03'] |
15,168 | ['eng'] | ['Armoni, Adi', 'Sonnenschein, J'] | ['Mesonic spectra of bosonized QCD$_{2}$ models'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'dimension, 2', 'fermion, massless', 'massless, fermion', 'bosonization', 'expansion 1/N, color', 'expansion 1/N, flavor', 'quantization, light front', 'meson, mass spectrum', 'mass spectrum, meson', 'Wess-Zumino-Witten model', 'current', 'algebra, Lie'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508006'] | ['We discuss bosonized two-dimensional QCD with massless fermions in the adjoint and multi-flavor fundamental representations. We evaluate the massive mesonic spectra of several models by using the light-front quantization and diagonalizing the mass operator M^2=2P^+P^- . We recover previous results in the case of one ... | ['1995-08-03'] |
15,169 | ['eng'] | ['Anazawa, M', 'Ishikawa, A', 'Itoyama, H'] | ['Macroscopic three-loop amplitudes and the fusion rules from the two-matrix model'] | ['Particle Physics - Theory'] | ['string model', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude', 'higher-order, 3', 'matrix model, 2', 'analytic properties', 'field theory, conformal', 'fusion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508009'] | ['From the computation of three-point singlet correlators in the two-matrix model, we obtain an explicit expression for the macroscopic three-loop amplitudes having boundary lengths \\ell_{i} (i = 1\\sim 3) in the case of the unitary series (p,q)= (m+1,m) coupled to two-dimensional gravity. The sum appearing in this ex... | ['1995-08-03'] |
15,170 | ['eng'] | ['Evans, N', 'Hsu, S D H', 'Schwetz, M', 'Selipsky, S B'] | ['Exact results and soft breaking masses in supersymmetric gauge theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry, symmetry breaking', 'mass', 'path integral', 'effective action', 'perturbation theory, higher-order', 'gauge field theory, SU(N)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508002'] | ['We give an explicit formalism connecting softly broken supersymmetric gauge theories (with QCD as one limit) to N=2 and N=1 supersymmetric theories possessing exact solutions, using spurion fields to embed these models in an enlarged N=1 model. The functional forms of additional Lagrangian terms resulting from soft s... | ['1995-08-02'] |
15,171 | ['eng'] | ['Suzuki, H'] | ['Calabi-Yau compactification of type-IIB string and a mass formula of the extreme black holes'] | ['Particle Physics - Theory'] | ['string model', 'spontaneous compactification, Calabi-Yau', 'gauge field theory, tensor', 'differential forms', 'mass spectrum', 'black hole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9508001'] | ['Recently proposed mechanism of the black hole condensation at conifold singularity in type II string is an interesting idea from which we can interpret the phase of the universal moduli space of the string vacua. It might also be expected that the true physics is on the conifold singularity after supersymmetry breaki... | ['1995-08-02'] |
15,172 | ['eng'] | ['Nill, Florian', 'Szlachányi, K'] | ['Quantum chains of Hopf algebras with order-disorder fields and quantum double symmetry'] | ['Particle Physics - Theory'] | ['algebra, Hopf', 'algebra, representation', 'model, spin', 'spin, model', 'axiomatic field theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507174'] | ['Given a finite dimensional C-*-Hopf algebra H and its dual H^ we construct the infinite crossed product A=... x H x H^ x H x ... and study its representations. A is the observable algebra of a generalized spin model with H-order and H^-disorder symmetries. By pointing out that A possesses a certain compressibility pr... | ['1995-08-01'] |
15,173 | ['eng'] | ['Sutcliffe, P M'] | ['The moduli space metric for tetrahedrally symmetric 4-monopoles'] | ['Particle Physics - Theory'] | ['field equations, monopole', 'moduli space, (4monopole)', 'symmetry, SU(2)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507173'] | ['The metric on the moduli space of SU(2) charge four BPS monopoles with tetrahedral symmetry is calculated using numerical methods. In the asymptotic region, in which the four monopoles are located on the vertices of a large tetrahedron, the metric is in excellent agreement with the point particle metric. We find that... | ['1995-08-01'] |
15,174 | ['eng'] | ['Abdalla, Elcio', 'Abdalla, Maria Christina B'] | ['Gravitational interactions of integrable models'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'symmetry, O(N)', 'gravitation, interaction', 'interaction, gravitation', 'integrability', 'charge, conservation law', 'operator, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507171'] | ['that integrability properties of symmetric space models still hold for the matter sector. Using similar arguments for the fermionic counterpart, namely Gross--Neveu-type models, we verify that such conclusions must also hold for them, as recently suggested.'] | ['1995-08-01'] |
15,175 | ['eng'] | ['Brindejonc, V', 'Cohen-Tannoudji, G'] | ['An effective strong gravity induced by QCD'] | ['Particle Physics - Theory'] | ['gravitation, strong interaction', 'strong interaction, gravitation', 'quantum chromodynamics', 'gravitation, induced', 'gauge field theory, SU(N)', 'effective Lagrangian'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509016'] | ["We show that, when quantized on a curved ``intra-hadronic background'', QCD induces an effective pseudo gravitational interaction with gravitational and cosmological constants in the GeV range."] | ['1995-09-11'] |
15,176 | ['eng'] | ['Harvey, J A', 'Lowe, D A', 'Strominger, A'] | ['N=1 string duality'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'duality, transformation', 'supergravity', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507168'] | ['We discuss duality between Type IIA string theory, eleven-dimensional supergravity, and heterotic string theory in four spacetime dimensions with N=1 supersymmetry. We find theories whose infrared limit is trivial at enhanced symmetry points as well as theories with N=1 supersymmetry but the field content of N=4 theo... | ['1995-07-31'] |
15,177 | ['eng'] | ['Rouhani, S'] | ['The Alfvén effect and conformal field theory'] | ['Particle Physics - Theory'] | ['model, hydrodynamical', 'dimension, 2', 'flux, magnetic', 'magnetic, flux', 'model, turbulence', 'field theory, conformal', 'correlation function', 'infrared problem', 'energy spectrum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507166'] | ["Noting that two-dimensional magnetohydrodynamics can be modeled by conformal field theory, we argue that when the Alf'ven effect is also taken into account one is naturally lead to consider conformal field theories, which have logarithmic terms in their correlation functions. We discuss the implications of such logar... | ['1995-07-31'] |
15,178 | ['eng'] | ['Kechkin, O V'] | ['Matrix dilaton-axion for heterotic string in three dimensions'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'dimension, 3', 'space-time', 'field theory, dilaton', 'field theory, axion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507164'] | ['New and surprisingly simple representation is found for the heterotic string bosonic effective action in three dimensions in terms of complex potentials. The system is presented as a K\\"ahler \\sigma--model using complex symmetric 2\\times 2 matrix (matrix dilaton--axion) which depends linearly on three Ernst--type ... | ['1995-07-31'] |
15,179 | ['eng'] | ['Carvalho, M', 'Vilar, L C Q', 'Helayël-Neto, José A'] | ['Non-linear supersymmetric $\\sigma$-models and their gauging in the Atiyah-Ward space-time'] | ['Particle Physics - Theory'] | ['space-time', 'sigma model, nonlinear', 'supersymmetry, superspace', 'gauge field theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507163'] | ['We present a supersymmetric non-linear \\s-model built up in the N=1 superspace of Atiyah-Ward space-time. A manifold of the K\\"ahler type comes out that is restricted by a particular decomposition of the K\\"ahler potential. The gauging of the \\s-model isometries is also accomplished in superspace.'] | ['1995-07-31'] |
15,180 | ['eng'] | ['Aldazabal, G'] | ['Standard grand unification from superstrings'] | ['Particle Physics - Theory'] | ['talk, Palaiseau 1995/05/15', 'grand unified theory, SO(10)', 'grand unified theory, SU(5)', 'string model', 'supersymmetry', 'algebra, Lie', 'charge', 'selection rule', 'orbifold'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507162'] | ['Recent developments about the construction of standard SO(10) and SU(5) grand unified theories from 4-dimensional superstrings are presented. Explicit techniques involving higher level affine Lie algebras, for obtaining such stringGUTs from symmetric orbifolds are discussed. Special emphasis is put on the different c... | ['1995-07-31'] |
15,181 | ['eng'] | ['Cvetic, M', 'Youm, D'] | ['Singular BPS saturated states and enhanced symmetries of four-dimensional N=4 supersymmetric string vacua'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'vacuum state', 'moduli space', 'field equations, solution'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507160'] | ["A class of supersymmetric (BPS saturated), static, spherically symmetric solutions of four-dimensional effective N=4 supersymmetric superstring vacua, which become massless at special points of moduli space, is studied in terms of the fields of the effective heterotic string theory compactified on a six-torus. Those ... | ['1995-07-31'] |
15,182 | ['eng'] | ['Berges, J', 'Tetradis, N', 'Wetterich, C'] | ['Critical equation of state from the average action'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'critical phenomena', 'scaling', 'symmetry, O(N)', 'effective potential', 'asymptotic behavior', 'infrared problem', 'renormalization group', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507159'] | ['The scaling form of the critical equation of state is computed for O(N)-symmetric models. We employ a method based on an exact flow equation for a coarse grained free energy. A suitable truncation is solved numerically.'] | ['1995-07-31'] |
15,183 | ['eng'] | ['Kogan, I I', 'Shifman, M', 'Vainshtein, A I'] | ['Matching conditions and duality in N=1 SUSY gauge theories in the conformal window'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'fermion, flavor', 'tensor, energy-momentum', 'current, conservation law', 'current, axial', 'anomaly', 'coupling, Yukawa', 'Yukawa, coupling', 'transformation, conformal', 'renormalization group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507170'] | ['We discuss duality in N=1 SUSY gauge theories in Seiberg\'s conformal window, (3N_c/2)<N_f<3N_c. It is shown that the standard \'t Hooft matching conditions -- the basic tool for establishing the infrared duality -- are to be supplemented by new matching conditions specific for the conformal window. In particular, on... | ['1995-07-31'] |
15,184 | ['eng'] | ['Bellet, B', 'García, P', 'Neveu, A'] | ['Convergent sequences of perturbative approximations for the anharmonic oscillator; 1, harmonic approach'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'dimension, 1', 'ground state', 'perturbation theory', 'asymptotic expansion', 'numerical calculations, variational'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507155'] | ['We present numerical evidence that a simple variational improvement of the ordinary perturbation theory of the quantum anharmonic oscillator can give a convergent sequence of approximations even in the extreme strong coupling limit, the purely anharmonic case. Some of the new techniques of this paper can be extended ... | ['1995-07-28'] |
15,185 | ['eng'] | ['Emery, S', 'Jirari, H', 'Piguet, O'] | ['Five-dimensional BF theory and four-dimensional current algebra'] | ['Particle Physics - Theory'] | ['field theory, topological', 'dimension, 5', 'current algebra', 'dimension, 4', 'axial gauge', 'n-point function', 'Ward identity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9506208'] | ['We consider the relation between the five-dimensional BF model and a four-dimensional local current algebra from the point of view of perturbative local quantum field theory. We use an axial gauge fixing procedure and show that it allows for a well defined theory which actually can be solved exactly.'] | ['1995-07-03'] |
15,186 | ['eng'] | ['Sathiapalan, B'] | ['On factorizing correlation functions in string theory using loop variables'] | ['Particle Physics - Theory'] | ['string model', 'model, oscillator', 'scattering amplitude, factorization', 'factorization, scattering amplitude', 'postulated particle, tachyon'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507157'] | ["Factorization of string amplitudes is one way of constructing string interaction vertices. We show that correlation functions in string theory can be conveniently factorized using loop variables representing delta functionals. We illustrate this construction with some examples where one particle is off-shell. These v... | ['1995-07-28'] |
15,187 | ['eng'] | ['Bellet, B', 'García, P', 'Neveu, A'] | ['Convergent sequences of perturbative approximations for the anharmonic oscillator; 2, compact time approach'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'dimension, 1', 'path integral, Euclidean', 'perturbation theory', 'asymptotic expansion', 'energy', 'numerical calculations, variational'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507156'] | ['We present an alternative pathway in the application of the variation improvement of ordinary perturbation theory exposed in [1] which can preserve the internal symmetries of a model by means of a time compactification.'] | ['1995-07-28'] |
15,188 | ['eng'] | ['Lian Bong H', 'Yau, S T'] | [] | ['Particle Physics - Theory'] | ['string model', 'Riemann surfaces', 'transformation, modular', 'space-time, Calabi-Yau', 'coupling, Yukawa', 'Yukawa, coupling', 'perturbation theory', 'geometry, algebra', 'talk'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507153'] | ["As a continuation of \\lianyaufour, we study modular properties of the periods, the mirror maps and Yukawa couplings for multi-moduli Calabi-Yau varieties. In Part A of this paper, motivated by the recent work of Kachru-Vafa, we degenerate a three-moduli family of Calabi-Yau toric varieties along a codimension one su... | ['1995-07-28'] |
15,189 | ['eng'] | ['Slavnov, A A'] | ['Bosonization of fermion determinants'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'fermion, determinant', 'path integral', 'bosonization', 'lattice field theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507152'] | ['A four dimensional fermion determinant is presented as a path integral of the exponent of a local five dimensional action describing constrained bosonic system. The construction is carried out both in the continuum theory and in the lattice model.'] | ['1995-07-28'] |
15,190 | ['eng'] | ['Lian Bong H', 'Yau, S T'] | ['Mirror maps, modular relations and hypergeometric series, 1'] | ['Particle Physics - Theory'] | ['string model', 'Riemann surfaces', 'transformation, modular'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507151'] | ['Motivated by the recent work of Kachru-Vafa in string theory, we study in Part A of this paper, certain identities involving modular forms, hypergeometric series, and more generally series solutions to Fuchsian equations. The identity which arises in string theory is the simpliest of its kind. There are nontrivial ge... | ['1995-07-28'] |
15,191 | ['eng'] | ['Iochum, B', 'Kastler, D', 'Schücker, T'] | ['Fuzzy mass relations in the standard model'] | ['Particle Physics - Theory'] | ['electroweak interaction', 'charge conjugation', 'differential geometry, noncommutative', 'mass, truth', 'truth, mass', 'coupling constant', 'Higgs particle, mass', 'mass, Higgs particle', 'numerical calculations, interpretation of experiments'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507150'] | ['Recently Connes has proposed a new geometric version of the standard model including a non-commutative charge conjugation. We present a systematic analysis of the relations among masses and coupling constants in this approach. In particular, for a given top mass, the Higgs mass is constrained to lie in an interval. T... | ['1995-07-28'] |
15,192 | ['eng'] | ['Bimonte, G', 'Ercolessi, E', 'Landi, G', 'Sparano, G', 'Teotônio-Sobrinho, P'] | ['Noncommutative lattices and their continuum limits'] | ['Particle Physics - Theory'] | ['geometry, noncommutative', 'lattice field theory', 'space, topological', 'approximation, finite', 'continuum limit', 'algebra, C*', 'linear spaces, Hilbert space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507148'] | ['We consider finite approximations of a topological space M by noncommutative lattices of points. These lattices are structure spaces of noncommutative C^*-algebras which in turn approximate the algebra \\cc(M) of continuous functions on M. We show how to recover the space M and the algebra \\cc(M) from a projective s... | ['1995-07-28'] |
15,193 | ['eng'] | ['Bimonte, G', 'Ercolessi, E', 'Landi, G', 'Sparano, G', 'Teotônio-Sobrinho, P'] | ['Lattices and their continuum limits'] | ['Particle Physics - Theory'] | ['lattice', 'continuum limit', 'space, topological', 'algebra', 'Hilbert space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507147'] | ['We address the problem of the continuum limit for a system of Hausdorff lattices (namely lattices of isolated points) approximating a topological space M. The correct framework is that of projective systems. The projective limit is a universal space from which M can be recovered as a quotient. We dualize the construc... | ['1995-07-28'] |
15,194 | ['eng'] | ['Asano, M', 'Higuchi, S'] | ['A connection between lattice and surgery constructions of three-dimensional topological field theories'] | ['Particle Physics - Theory'] | ['field theory, topological', 'dimension, 3', 'lattice field theory', 'graph theory', 'knot theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507146'] | ['We study the relation between lattice construction and surgery construction of three-dimensional topological field theories. We show that a class of the Chung-Fukuma-Shapere theory on the lattice has representation theoretic reformulation which is closely related to the Altschuler-Coste theory constructed by surgery.... | ['1995-07-28'] |
15,195 | ['eng'] | ['Labastida, J M F', 'Marino, M'] | ['Polynomial invariants for SU(2) monopoles'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry, superfield', 'field theory, magnetic monopole', 'charge, topological', 'field theory, Kaehler', 'perturbation theory', 'mass', 'duality', 'moduli space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507140'] | ['We present an explicit expression for the topological invariants associated to SU(2) monopoles in the fundamental representation on spin four-manifolds. The computation of these invariants is based on the analysis of their corresponding topological quantum field theory, and it turns out that they can be expressed in ... | ['1995-07-27'] |
15,196 | ['eng'] | ['Das, S R', 'Mathur, S D'] | ['Folds, bosonization and non-triviality of the classical limit of 2D string theory'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'quantization', 'Hamiltonian formalism', 'bosonization', 'approximation, classical', 'triviality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507141'] | ["In the 1-dimensional matrix model one identifies the tachyon field in the asymptotic region with a nonlocal transform of the density of fermions. But there is a problem in relating the classical tachyon field with the surface profile of the fermi fluid if a fold forms in the fermi surface. Besides the collective fiel... | ['1995-07-27'] |
15,197 | ['eng'] | ['Ferrari, F'] | ['Biharmonic conformal field theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'field theory, action', 'derivative, higher-order', 'field theory, harmonic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507142'] | ['The main result of this paper is the construction of a conformally covariant operator in two dimensions acting on scalar fields and containing fourth order derivatives. In this way it is possible to derive a class of Lagrangians invariant under conformal transformations. They define conformal field theories satisfyin... | ['1995-07-27'] |
15,198 | ['eng'] | ['Dowker, F', 'Gauntlett, J', 'Gibbons, G W', 'Horowitz, Gary T'] | ['The decay of magnetic fields in Kaluza-Klein theory'] | ['Particle Physics - Theory'] | ['Kaluza-Klein model', 'dimension, 5', 'spontaneous compactification', 'magnetic field, decay', 'decay, magnetic field', 'field equations, instanton', 'stability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507143'] | ['Magnetic fields in five dimensional Kaluza-Klein theory compactified on a circle correspond to ``twisted" identifications of five dimensional Minkowski space. We show that a five dimensional generalization of the Kerr solution can be analytically continued to construct an instanton that gives rise to two possible dec... | ['1995-07-27'] |
15,199 | ['eng'] | ['Ito, K', 'Yang, S K'] | ['Prepotentials in N=2 SU(2) supersymmetric Yang-Mills theory with massless hypermultiplets'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry, multiplet', 'multiplet, supersymmetry', 'effective action', 'field theory, instanton', 'potential', 'approximation, weak coupling', 'weak coupling, approximation', 'approximation, strong coupling', 'strong coupling, approximation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9507144'] | ['We calculate the prepotential of the low-energy effective action for N=2 SU(2) supersymmetric Yang-Mills theory with N_f massless hypermultiplets (N_f=1,\\, 2,\\, 3). The precise evaluation of the instanton corrections is performed by making use of the Picard-Fuchs equations associated with elliptic curves.The flavor... | ['1995-07-27'] |
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