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 |
|---|---|---|---|---|---|---|---|---|
9,300 | ['eng'] | ['Deriglazov, A A', 'Gitman, D M'] | ['On zero modes of the eleven dimensional superstring'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'dimension, 11', 'Hamiltonian formalism', 'constraint', 'zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801176'] | ['It is shown that recently pointed out by Berkovits on-shell degrees of freedom of the D=11 superstring do not make contributions into the quantum states spectrum of the theory. As a consequence, the spectrum coincides with that of the D=10 type IIA superstring.'] | ['1998-01-28'] |
9,301 | ['eng'] | ['Liu Chien Hao'] | ['On the isolated singularity of a 7-space obtained by rolling Calabi-Yau threefolds through extremal transitions'] | ['Particle Physics - Theory'] | ['M-theory', 'dimension, 11', 'spontaneous compactification', 'boundary condition', 'field theory, Calabi-Yau', 'differential geometry', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801175'] | ["M-theory suggests the study of $11$-d space-times compactified on $7$-manifolds. From its relation to superstrings, one possible class of such $7$-manifolds are those that arise from rolling Calabi-Yau threefolds in the web of Calabi-Yau moduli spaces. The resulting $7$-space $Y^7$ in general has singularities govern... | ['1998-01-28'] |
9,302 | ['eng'] | ['Gangopadhyay, D', 'Sen-Gupta, S K'] | ['Duality Invariance of Cosmological Solutions with Torsion'] | ['Particle Physics - Theory'] | ['string model', 'effective action', 'gravitation, dilaton', 'field theory, tensor', 'torsion', 'duality', 'field equations, solution'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801174'] | ['We show that for a string moving in a background consisting of maximally symmetric gravity, dilaton field and second rank antisymmetric tensor field, the O(d) $\\otimes$ O(d) transformation on the vacuum solutions gives inequivalent solutions that are not maximally symmetric. We then give a generalised definition of ... | ['1998-01-28'] |
9,303 | ['eng'] | ['Pachos, J'] | ['1+1 Dimensional SU(N) Static Sources in E and A Representations'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'dimension, 2', 'Gauss law', 'constraint, solution', 'wave function', 'path integral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801172'] | ["Here is presented a complete work on the (1+1) dimensional SU(N) Yang-Mills theory with static sources. By studying the structure of the SU(N) group and of the Gauss' law we construct in the electric representation the appropriate wave functionals, which are simultaneously eigenstates of the Gauss' operator and of th... | ['1998-01-27'] |
9,304 | ['eng'] | ['Böckenhauer, R K', 'Evans, D E'] | ['Modular Invariants, Graphs and $\\alpha$-Induction for Nets of Subfactors I'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'operator, algebra', 'fusion', 'braid group', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801171'] | ['We analyze the induction and restriction of sectors for nets of subfactors defined by Longo and Rehren. Picking a local subfactor we derive a formula which specifies the structure of the induced sectors in terms of the original DHR sectors of the smaller net and canonical endomorphisms. We also obtain a reciprocity f... | ['1998-01-27'] |
9,305 | ['eng'] | ['Pause, T', 'Heinzl, T'] | ['The Configuration Space of Low-dimensional Yang-Mills Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SO(2)', 'gauge field theory, SO(3)', 'gauge field theory, SU(2)', 'dimension, <4', 'dependence, gauge', 'phase space', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801169'] | ['We discuss the construction of the physical configuration space for Yang-Mills quantum mechanics and Yang-Mills theory on a cylinder. We explicitly eliminate the redundant degrees of freedom by either fixing a gauge or introducing gauge invariant variables. Both methods are shown to be equivalent if the Gribov proble... | ['1998-01-27'] |
9,306 | ['eng'] | ['Ogreid, O M', 'Osland, P'] | ['Summing one- and two-dimensional series related to the Euler series'] | ['Particle Physics - Theory'] | ['Feynman graph', 'perturbation theory, higher-order', 'analytic properties', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801168'] | ["We present results for some infinite series appearing in Feynman diagram calculations, many of which are similar to the Euler series. These include both one-dimensional and two-dimensional series. Most of these series can be expressed in terms of zeta(2), zeta(3), the Catalan constant G and Cl{2}(pi/3) where Cl{2}(th... | ['1998-01-27'] |
9,307 | ['eng'] | ['Volovich, I V'] | ['Domain Walls in MQCD and Monge-Ampere Equation'] | ['Particle Physics - Theory'] | ['M-theory', 'membrane model, p-brane', 'p-brane, 5', 'gauge field theory, SU(2)', 'domain wall'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801166'] | ["We study Witten's proposal that a domain wall exists in M-theory fivebrane version of QCD (MQCD) and that it can be represented as a supersymmetric three-cycle in G_2 holonomy manifold. It is shown that equations defining the U(1) invariant domain wall for SU(2) group can be reduced to the Monge-Ampère equation. A pr... | ['1998-01-27'] |
9,308 | ['eng'] | ['Cowdall, P M', 'Townsend, P K'] | ['Gauged Supergravity Vacua From Intersecting Branes'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 10', 'Kaluza-Klein model', 'vacuum state', 'gauge field theory, SU(2)', 'gauge field theory, SU(2) x SU(2)', 'membrane model, p-brane', 'p-brane, 5', 'p-brane, interaction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801165'] | ['Domain wall and electrovac solutions of gauged N=4 D=4 supergravity, with gauge group SU(2) or SU(2)xSU(2), are interpreted as supersymmetric Kaluza-Klein vacua of N=1 D=10 supergravity. These vacua are shown to be the near-horizon geometries of certain intersecting brane solutions.'] | ['1998-01-27'] |
9,309 | ['eng'] | ['Umezawa, E'] | ['Renormalization Group Invariant Constraints among Coupling Constants in a Noncommutative Geometry Model'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Higgs model', 'fermion', 'unified field theory', 'differential geometry, noncommutative', 'constraint', 'renormalization group, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801164'] | ['From the field strengths defined in noncommutative geometry, we construct a bosonic lagrangian of the standard model by using a natural way. It is shown that constraints among coupling constants of our model can be renormalization group invariant (RGI). We also consider the relation between the condition that a const... | ['1998-01-27'] |
9,310 | ['eng'] | ['Pachos, J'] | ['The Coulomb Branch of Yang-Mills Theory from the Schrödinger Representation'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Schroedinger equation', 'wave function', 'charge', 'potential, Coulomb'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801163'] | ['The Coulomb branch of the potential between two static colored sources is calculated for the Yang-Mills theory using the electric Schroedinger representation.'] | ['1998-01-27'] |
9,311 | ['eng'] | ["D'Alwis, S P"] | ['Radiation of RR states from NS Fivebranes'] | ['Particle Physics - Theory'] | ['M-theory', 'effective action', 'membrane model, p-brane', 'p-brane, 5', 'radiation, Hawking'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801162'] | ['We show that the recent observation that near extremal NS fivebranes decay due to Hawking radiation, can be understood in terms of their coupling to RR states which does not vanish even as the string coupling goes to zero.'] | ['1998-01-26'] |
9,312 | ['eng'] | ['Chamseddine, A H', 'Sabra, W A'] | ['Metrics Admitting Killing Spinors In Five Dimensions'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 5', 'supersymmetry, symmetry breaking', 'soliton', 'black hole', 'space-time, spinor'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801161'] | ['BPS black hole configurations which break half of supersymmetry in the theory of N=2, d=5 supergravity coupled to an arbitrary number of abelian vector multiplets are discussed. A general class of solutions comprising all known BPS rotating black hole solutions is obtained.'] | ['1998-01-26'] |
9,313 | ['eng'] | ['Galtsov, D V', 'Rytchkov, O A'] | ['Generating branes via sigma-models'] | ['Particle Physics - Theory'] | ['supergravity', 'any-dimensional', 'dilaton', 'field theory, tensor', 'field equations, solution', 'membrane model, p-brane', 'black hole', 'membrane model, interaction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801160'] | ["Starting with the D-dimensional Einstein-dilaton-antisymmetric form equations and assuming a block-diagonal form of a metric we derive a $(D-d)$-dimensional R$ or its non-compact form. Various solution-generating techniques are developed and applied to construct some known and some new $p$-brane solutions. It is show... | ['1998-01-26'] |
9,314 | ['eng'] | ['Evans, N'] | ['Quark Condensates in Non-supersymmetric MQCD'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'membrane model', 'M-theory', 'infrared problem', 'supersymmetry, symmetry breaking', 'quark, condensation', 'symmetry breaking, flavor', 'violation, CP'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801159'] | ['A set of non-supersymmetric minimal area embeddings of an M-theory 5-brane are considered. The field theories on the surface of the 5-brane have the field content of N=2 SQCD with fundamental representation matter fields. By suitable choice of curve parameters the N=2 and N=1 superpartners may be decoupled leaving a ... | ['1998-01-26'] |
9,315 | ['eng'] | ['Bergshoeff, E A', 'Papadopoulos, G J', 'Van der Schaar, J P'] | ['Domain Walls on the Brane'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'field equations, solution', 'domain wall', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801158'] | ['We show that all branes admit worldvolume domain wall solutions. We find one class of solutions for which the tension of the brane changes discontinuously along the domain wall. These solutions are not supersymmetric. We argue that there is another class of domain wall solutions which is supersymmetric. A particular ... | ['1998-01-26'] |
9,316 | ['eng'] | ['Martin, S P', 'Wells, J D'] | ['Chiral symmetry breaking and effective lagrangians for softly broken supersymmetric QCD'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'supersymmetry, symmetry breaking', 'quark, mass', 'potential, Kaehler', 'potential, weak coupling', 'symmetry breaking, chiral', 'effective Lagrangian', 'sparticle, mass', 'expansion 1/N, color', 'pi, decay constant', 'pi, mass', 'mass spectrum', 'scaling'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801157'] | ['We study supersymmetric QCD with N_f<N_c in the limit of small supersymmetry-breaking masses and smaller quark masses using the weak-coupling Kahler potential. We calculate the full spectrum of this theory, which manifests a chiral symmetry breaking pattern similar to that caused by the strong interactions of the sta... | ['1998-01-26'] |
9,317 | ['eng'] | ['Brunner, Ilka', 'Karch, A'] | ['Six-Dimensional Fixed Points from Branes'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 6', 'p-brane, 5'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801156'] | ['We review the construction of six dimensional N=1 fixed points in a brane picture involving D6 branes stretching between NS 5 branes.'] | ['1998-01-26'] |
9,318 | ['eng'] | ['Cavaglià, M', 'Fatibene, L', 'Francaviglia, M'] | ['Two-Dimensional Dilaton-Gravity Coupled to Massless Spinors'] | ['Particle Physics - Theory'] | ['gravitation', 'dilaton', 'fermion', 'dimension, 2', 'fibre bundle', 'potential', 'field equations, solution', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801155'] | ['We apply a global and geometrically well-defined formalism for spinor-dilaton-gravity to two-dimensional manifolds. We discuss the general formalism and focus attention on some particular choices of the dilatonic potential. For constant dilatonic potential the model turns out to be completely solvable and the general... | ['1998-01-26'] |
9,319 | ['eng'] | ['Brunner, Ilka', 'Karch, A'] | ['Matrix Theory and the Six Torus'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'matrix model', 'spontaneous compactification, torus', 'dimension, 6', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801154'] | ['We review the problems associated with Matrix compactifications on T^6.'] | ['1998-01-26'] |
9,320 | ['eng'] | ['Shima, K'] | ['Supersymmetric Structure of Spacetime and Matter'] | ['Particle Physics - Theory'] | ['space-time', 'supersymmetry', 'dimension, 10', 'algebra, Poincare', 'particle, multiplet'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801153'] | ['A unified description of spacetime and matter at the Planck scale is proposed by using the irreducible representation of N=10 extended Super-Poincaré algebra, where all matters and all forces except the graviton are the supersymmetric composites made of the fundamental objects with spin 1/2, $superon$ $quintet$. All ... | ['1998-01-26'] |
9,321 | ['eng'] | ['Lee, H W', 'Kim, N J', 'Myung, Y S', 'Kim, J Y'] | ['Stability analysis and absorption cross-section in three-dimensional black string'] | ['Particle Physics - Theory'] | ['string model', 'sigma model, nonlinear', 'dimension, 3', 'space-time', 'stability', 'cross section'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801152'] | ['It is shown that all string fields except dilaton are non-propagating in the (2+1)-dimensional black string. One finds that the perturbation around the black string reveals a mixing between the dilaton and other fields. Under the new gauge(dilaton gauge), we disentangle this mixing and obtain one decoupled dilaton eq... | ['1998-01-26'] |
9,322 | ['eng'] | ['Jónsson, T'] | ['On the width of handles in two-dimensional quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'triangulation', 'loop space', 'Riemann surfaces', 'model, polymer'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801150'] | ['We discuss the average length l of the shortest non-contractible loop on surfaces in the two-dimensional pure quantum gravity ensemble. The value of diverges at the critical point. Scaling arguments suggest that the critical exponent of l is 1/2. We show that this value of the critical exponent is also obtained for b... | ['1998-01-23'] |
9,323 | ['eng'] | ['Mironov, A E'] | ['On N=2 SUSY gauge theories and integrable systems'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'gauge field theory, Yang-Mills', 'supersymmetry', 'Seiberg-Witten model', 'geometry, algebra', 'integrability', 'cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801149'] | ['This note gives a brief review of the integrable structures presented in the Seiberg-Witten approach to the N=2 SUSY gauge theories with emphasize on the case of the gauge theories with matter hypermultiplets included (described by spin chains). The web of different N=2 SUSY theories is discussed.'] | ['1998-01-23'] |
9,324 | ['eng'] | ['Gorbunov, I V', 'Lyakhovich, S L'] | ['Geometric quantization of N=2, D=3 superanyon'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'supersymmetry', 'dimension, 3', 'spin, fractional', 'anyon', 'quantization, geometrical'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801148'] | ['A classical model of N=2, D=3 fractional spin superparticle (superanyon) is presented, whose first-quantization procedure combines the Berezin quantization for the superspin degrees of freedom and the canonical quantization for the space-time ones. To provide the supersymmetry for the quantised theory, certain quantu... | ['1998-01-23'] |
9,325 | ['eng'] | ['Ho, P M', 'Wu, Y S'] | ['Noncommutative Gauge Theories in Matrix Theory'] | ['Particle Physics - Theory'] | ['matrix model', 'spontaneous compactification', 'field theory, Euclidean', 'gauge field theory', 'differential geometry, noncommutative'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801147'] | ['We present a general framework for Matrix theory compactified on a quotient space of n dimensional Euclidean space over G, with G a discrete group of Euclidean motions. The general solution to the quotient conditions gives a gauge theory on a noncommutative space. We characterize the resulting noncommutative gauge th... | ['1998-01-23'] |
9,326 | ['eng'] | ['Cheng, H C', 'Shadmi, Y'] | ['Duality in the Presence of Supersymmetry Breaking'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion, flavor', 'supersymmetry, symmetry breaking', 'vacuum state', 'duality', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801146'] | ["We study Seiberg duality for N=1 supersymmetric QCD with soft supersymmetry-breaking terms. We generate the soft terms through gauge mediation by coupling two theories related by Seiberg duality to the same supersymmetry-breaking sector. In this way, we know what a supersymmetry-breaking perturbation in one theory ma... | ['1998-01-23'] |
9,327 | ['eng'] | ['Birmingham, Daniel'] | ['String Theory Formulation of anti-de Sitter Black Holes'] | ['Particle Physics - Theory'] | ['black hole, anti-de Sitter', 'dimension, 5', 'string model', 'field equations, solution', 'supersymmetry', 'spontaneous compactification', 'geometry, horizon', 'algebra, anti-de Sitter', 'dimension, 3', 'entropy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801145'] | ['It is shown that the five-dimensional anti-de Sitter black hole is a supersymmetric solution of the low-energy field equations of type IIB string theory compactified on an Einstein space. The near-horizon geometry is shown to be locally equivalent to three-dimensional anti-de Sitter space adS_{3}. The entropy of the ... | ['1998-01-22'] |
9,328 | ['eng'] | ['Trigiante, M'] | ['Dualities in Supergravity and Solvable Lie Algebras'] | ['Particle Physics - Theory'] | ['thesis', 'supergravity', 'duality', 'algebra, Lie', 'string model', 'supersymmetry, symmetry breaking', 'algebra, E(7)', 'algebra, SU(8)', 'algebra, representation', 'black hole', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801144'] | ['The purpose of the present thesis is to give a self-contained review of the solvable Lie algebra approach to supergravity problems related with S, T and U dualities. After recalling the general features of dualities in both Superstring theory and Supergravity, we introduce the solvable Lie algebra formalism as an alt... | ['1998-01-22'] |
9,329 | ['eng'] | ['Lazzarini, S', 'Schücker, T'] | ['Standard model and unimodularity condition'] | ['Particle Physics - Theory'] | ['talk, Palermo 1997/12/12', 'Salam-Weinberg model', 'unified field theory', 'differential geometry, noncommutative'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801143'] | ["The unimodularity condition in Connes' formulation of the standard model is rewritten in terms of group representations."] | ['1998-01-22'] |
9,330 | ['eng'] | ['Smilga, A V', 'Veselov, A I'] | ['BPS and non-BPS Domain Walls in Supersymmetric QCD with SU(3) Gauge Group'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3)', 'supersymmetry, superfield', 'symmetry breaking, chiral', 'field equations, solution', 'sphaleron', 'energy', 'domain wall', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801142'] | ["We study the spectrum of the domain walls interpolating between different chirally asymmetric vacua in supersymmetric QCD with the SU(3) gauge group and including 2 pairs of chiral matter multiplets in fundamental and anti-fundamental representations. For small enough masses m < m* = .286... (in the units of \\Lambda... | ['1998-01-22'] |
9,331 | ['eng'] | ['Bhattacharya, S', 'Kumar, A', 'Mukhopadhyay, S'] | ['String Network and U-Duality'] | ['Particle Physics - Theory'] | ['string model', 'soliton', 'duality', 'dimension, 8', 'charge, SL(3)', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801141'] | ['We discuss the generalization of recently discovered BPS configurations, corresponding to the planar string networks, to non-planar ones by considering the U-duality symmetry of type II string theory in various dimensions. As an explicit example, we analyze the string solutions in 8-dimensional space-time, carrying S... | ['1998-01-22'] |
9,332 | ['eng'] | ['Billó, M', 'Denef, F', 'Fré, P', 'Pesando, I', 'Troost, W', 'Van Proeyen, A', 'Zanon, D'] | ['Special geometry of Calabi-Yau compactifications near a rigid limit'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'string model', 'supersymmetry', 'spontaneous compactification, Calabi-Yau', 'differential geometry, Kaehler'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801140'] | ['We discuss, in the framework of special Kahler geometry, some aspects of the "rigid limit" of type IIB string theory compactified on a Calabi-Yau threefold. We outline the general idea and demonstrate by direct analysis of a specific example how this limit is obtained. The decoupling of gravity and the reduction of s... | ['1998-01-21'] |
9,333 | ['eng'] | ['Vafa, C'] | ['On N=1 Yang-Mills in Four Dimensions'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'F-theory', 'Wilson loop', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801139'] | ['Extending previous work on geometric engineering of N=1 Yang-Mills in four dimensions for simply laced ($A_n,D_n,E_{6,7,8}$) gauge groups, we construct local models for all other gauge groups ($B_n,C_n,F_4,G_2$) in terms of F-theory. We compute the radius dependent superpotential upon further compactification on a ci... | ['1998-01-21'] |
9,334 | ['eng'] | ['Padmanabhan, T'] | ['Event horizon'] | ['Particle Physics - Theory'] | ['space-time', 'quantum gravity', 'approximation, quasiclassical', 'boundary condition', 'thermodynamics', 'energy', 'temperature'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801138'] | ["An attempt is made to describe the `thermodynamics' of semiclassical spacetime without specifying the detailed `molecular structure' of the quantum spacetime, using the known properties of blackholes. I give detailed arguments, essentially based on the behaviour of quantum systems near the event horizon, which sugges... | ['1998-01-21'] |
9,335 | ['eng'] | ['Bakalarska, M', 'Tybor, W'] | ['On Propagator of Notoph'] | ['Particle Physics - Theory'] | ['gauge field theory, tensor', 'propagator', 'dependence, gauge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801137'] | ['It is shown that the notoph propagator in the noncovariant longitudinal gauge is equivalent to the covariant Feynmann - like propagator.'] | ['1998-01-21'] |
9,336 | ['eng'] | ['Mickelsson, J'] | ['Current algebra and exotic statistics in 6 dimensions'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3)', 'fermion, chiral', 'background field', 'group theory, loop space', 'spin, statistics', 'dimension, 6'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801136'] | ['By studying ordinary chiral fermions in background gauge fields we show that in the case of gauge group SU(3) and space-time dimension 5+1 localized solitons obey $q-$ commutation relations with $q$ not equal to $\\pm 1$ but a third root of unity.'] | ['1998-01-21'] |
9,337 | ['eng'] | ['Kitao, T', 'Ohta, N', 'Zhou Jian Ge'] | ['Fermionic Zero Mode and String Creation between D4-Branes at Angles'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 4', 'membrane model, interaction', 'string, production', 'scattering amplitude', 'fermion, zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801135'] | ['We study the creation of a fundamental string between D4-branes at angles in string theory. It is shown that ${\\rm R}(-1)^{\\rm F}$ part of the one-loop potential of open string changes its sign due to the change of fermionic zero-mode vacua when the branes cross each other. As a result the effective potential is in... | ['1998-01-21'] |
9,338 | ['eng'] | ['Hanany, A', 'Zaffaroni, A'] | ['On the Realization of Chiral Four-dimensional Gauge Theories Using Branes'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion, flavor', 'fermion, chiral', 'membrane model', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801134'] | ['We consider a general brane construction for realizing chiral four-dimensional gauge theories. The advantage of the construction is the simplicity and the possibility of realizing a large class of models existing in the literature. We start the study of these models by determining the matter content and the superpote... | ['1998-01-20'] |
9,339 | ['eng'] | ['Akemann, G', 'Damgaard, P H'] | ['Microscopic Spectra of Dirac Operators and Finite-Volume Partition Functions'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion, massive', 'partition function', 'correlation function', 'matrix model, random', 'universality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801133'] | ['Exact results from random matrix theory are used to systematically analyse the relationship between microscopic Dirac spectra and finite-volume partition functions. Results are presented for the unitary ensemble, and the chiral analogs of the three classical matrix ensembles: unitary, orthogonal and symplectic, all o... | ['1998-01-20'] |
9,340 | ['eng'] | ['de Wit, B', 'Louis, J'] | ['Supersymmetry and Dualities in various dimensions'] | ['Particle Physics - Theory'] | ['talk, Cargese 1997/05/26', 'string model', 'any-dimensional', 'supersymmetry', 'duality', 'effective action', 'particle, multiplet', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801132'] | ['In these lectures we review how some of the recent developments in string theory are closely related to generic properties of supersymmetry. Lectures given at the Nato Advances Study Institute on "Strings, Branes and Dualities", Cargese, May 26 - June 14, 1997.'] | ['1998-01-20'] |
9,341 | ['eng'] | ['Bugrij, E', 'Mishchenko, A S', 'Sitenko, Yu A'] | ['Scattering in the pair of Hilbert spaces'] | ['Particle Physics - Theory'] | ['talk, Kiev 1997/05/12', 'particle, relativistic', 'gravitation, background field', 'wormhole', 'symmetry, axial', 'scattering', 'Hilbert space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801131'] | ['The problem of the scattering of a charged test particle in the gravitational background of axially symmetrical wormhole in the presence of the Aharonov-Bohm type magnetic field is considered. It is shown that the natural mathematical framework appropriate for the problem is the scattering theory in the pair of Hilbe... | ['1998-01-20'] |
9,342 | ['eng'] | ['Durhuus, B', 'Jónsson, T'] | ['A polymer gas on a random surface'] | ['Particle Physics - Theory'] | ['gravitation', 'quantization', 'dimension, 2', 'wave function', 'model, polymer', 'random surface'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801130'] | ['Using the observation that configurations of N polymers with hard core interactions on a closed random surface correspond to random surfaces with N boundary components we calculate the free energy of a gas of polymers interacting with fully quantized two-dimensional gravity. We derive the equation of state for the po... | ['1998-01-20'] |
9,343 | ['eng'] | ['Bordag, M', 'Lindig, J'] | ['Radiative Correction to the Casimir Force on a Sphere'] | ['Particle Physics - Theory'] | ['space-time, sphere', 'effect, Casimir', 'electromagnetic interaction', 'path integral', 'perturbation theory, higher-order', 'energy, ground state', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801129'] | ['The first radiative correction to the Casimir energy of a perfectly conducting spherical shell is calculated. The calculation is performed in the framework of covariant perturbation theory with the boundary conditions implemented as constraints. The formalism is briefly reviewed and its use is explained by deriving t... | ['1998-01-20'] |
9,344 | ['eng'] | ['Gava, E', 'Morales, J F', 'Narain, Kumar S', 'Thompson, G'] | ['Bound States of Type I D-Strings'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'effective action', 'gauge field theory, O(N)', 'bound state', 'infrared problem', 'field theory, conformal', 'field theory, orbifold', 'partition function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801128'] | ['We study the infra-red limit of the O(N) gauge theory that describes the low energy modes of a system of $N$ type I D-strings and provide some support to the conjecture that, in this limit, the theory flows to an orbifold conformal theory. We compute the elliptic genus of the orbifold theory and argue that its longes... | ['1998-01-20'] |
9,345 | ['eng'] | ['Brecher, D', 'Perry, M J'] | ['Bound States of D-Branes and the Non-Abelian Born-Infeld Action'] | ['Particle Physics - Theory'] | ['Born-Infeld model, nonabelian', 'membrane model, D-brane', 'bound state', 'perturbation theory, higher-order', 'string model', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801127'] | ["We attempt to settle the issue as to what is the correct non-abelian generalisation of the Born-Infeld action, via a consideration of the two-loop theory. An analysis of the bosonic theory alone shows the recent proposal of Tseytlin's~\\cite{tseytlin} to be somewhat lacking. For the superstring, however, this proposa... | ['1998-01-20'] |
9,346 | ['eng'] | ['Borowiec, A', 'Ferraris, M', 'Francaviglia, M'] | ['Lagrangian Symmetries of Chern-Simons Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'gravitation', 'Chern-Simons term', 'symmetry, transformation', 'current, conservation law'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801126'] | ['This paper analyses the Noether symmetries and the corresponding conservation laws for Chern-Simons Lagrangians in dimension $d=3$. In particular, we find an expression for the superpotential of Chern-Simons gravity. As a by-product the general discussion of superpotentials for 3rd order natural and quasi-natural the... | ['1998-01-20'] |
9,347 | ['eng'] | ['Satoh, Y'] | ['Propagation of Scalars in Non-extremal Black Hole and Black p-brane Geometries'] | ['Particle Physics - Theory'] | ['black hole', 'dimension, 2', 'dimension, 3', 'field theory, scalar', 'membrane model, p-brane', 'duality', 'string model', 'symmetry, SL(2,R)', 'symmetry, SL(2,R)/U(1)', 'dilaton', 'dyon', 'cross section, absorption', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801125'] | ['We discuss propagation of scalars in a large class of non-extremal black hole and black p-brane geometries in generic dimensions. We show that the radial wave equation near the horizon possesses the SL(2,R) structure in every case; approximately it takes the form of the wave equation in the SL(2,R) (AdS_3) background... | ['1998-01-20'] |
9,348 | ['eng'] | ['Golner, G R'] | ['Exact Renormalization Group Flow Equations for Free Energies and N-point Functions in Uniform External Fields'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'renormalization group, transformation', 'n-point function', 'energy', 'external field', 'scaling', 'fluctuation', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801124'] | ['The exact Wilson/Polchinski renormalization group equation is projected onto its uniform external field dependent effective free energy and connected Green\'s functions. The result is a hierarchy of equations which admits a choice of "natural" truncation and closure schemes for nonperturbative approximate solution. I... | ['1998-01-20'] |
9,349 | ['eng'] | ['Li, T'] | ['Compactification and Supersymmetry Breaking in M-theory'] | ['Particle Physics - Theory'] | ['M-theory', 'spontaneous compactification, orbifold', 'supersymmetry, symmetry breaking', 'field theory, Kaehler'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801123'] | ['Keeping N=1 supersymmetry in 4-dimension and in the leading order, we disuss the various orbifold compactifications of M-theory suggested by Horava and Witten on $T^6/Z_3$, $T^6/Z_6$, $T^6/Z_{12}$, and the compactification by keeping singlets under $SU(2)\\times U(1)$ symmetry, then the compactification on $S^1/Z_2$.... | ['1998-01-20'] |
9,350 | ['eng'] | ['Kummer, Wolfgang', 'Liebl, H', 'Vasilevich, D V'] | ['Comment on "Trace anomaly of dilaton coupled scalars in two dimensions"'] | ['Particle Physics - Theory'] | ['space-time', 'field theory, scalar', 'dilaton', 'anomaly, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801122'] | ['The trace anomaly for nonminimally coupled scalars in spherically reduced gravity obtained by Bousso and Hawking (hep-th/9705236) is incorrect. We explain the reasons for the deviations from our correct (published) result which is supported by several other recent papers.'] | ['1998-01-20'] |
9,351 | ['eng'] | ['Periwal, V', 'Von Unge, R'] | ['Accelerating D-branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3', 'acceleration', 'background field', 'supergravity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801121'] | ['Higher derivative terms are computed in the one-loop effective action governing the interactions of D3-branes, in two ways: (1) in a formalism with N=2 supersymmetry preserved off-shell, and (2) in the standard background field formalism, with only on-shell supersymmetry. It is shown that these calculations only agre... | ['1998-01-20'] |
9,352 | ['eng'] | ['Chepelev, I', 'Tseytlin, Arkady A'] | ['On membrane interaction in matrix theory'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 11', 'membrane model, interaction', 'matrix model', 'duality, transformation', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801120'] | ["We compute the interaction potential between two parallel transversely boosted wrapped membranes (with fixed momentum $p_-$) in $D=11$ supergravity with compact light-like direction. We show that the supergravity result is in exact agreement with the potential following from the all-order Born-Infeld-type action conj... | ['1998-01-20'] |
9,353 | ['eng'] | ['Jaffe, A'] | ['Quantum Invariants'] | ['Particle Physics - Theory'] | ['supersymmetry, charge', 'differential geometry, noncommutative', 'partition function', 'linear spaces, Hilbert space', 'regularization, heat kernel'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801119'] | ['In super-symmetric quantum theory, or in string theory, (including generalizations of these theories to underlying quantum spaces) we study a certain partition function Z(Q,A,g). Here Q denotes a supercharge, A denotes an observable with the property A^2 = I, and g denotes an element of a symmetry group of Q. The sup... | ['1998-01-20'] |
9,354 | ['eng'] | ['Igarashi, Y', 'Itoh, K', 'Kamimura, K', 'Kuriki, R'] | ['Canonical Equivalence between Super D-string and Type IIB Superstring'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'Hamiltonian formalism, transformation', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801118'] | ['We show that the super D-string action is canonically equivalent to the type IIB superstring action with a world-sheet gauge field. Canonical transformation to the type IIB theory with dynamical tension is also constructed to establish the SL(2,Z) covariance beyond the semi-classical approximations.'] | ['1998-01-20'] |
9,355 | ['eng'] | ['Devchand, C', 'Lechtenfeld, O'] | ['On the Self-Dual Geometry of N=2 Strings'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'gauge field theory, Yang-Mills', 'duality', 'string model, open', 'operator, Becchi-Rouet-Stora', 'scattering amplitude'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801117'] | ["We discuss the precise relation of the open N=2 string to a self-dual Yang-Mills (SDYM) system in 2+2 dimensions. In particular, we review the description of the string target space action in terms of SDYM in a ``picture hyperspace'' parametrised by the standard vectorial R^{2,2} coordinate together with a commuting ... | ['1998-01-20'] |
9,356 | ['eng'] | ['Andrianopoli, Laura'] | ['Central charges, black-hole entropy and geometrical structure of N-extended supergravities in D=4'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'black hole, entropy', 'supergravity', 'central charge', 'matter, charge', 'dependence, moduli', 'duality', 'black hole, mass'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801116'] | ["The derivation of absolute (moduli-independent) U-invariants for all N>2 extended supergravities at D=4 in terms of (moduli-dependent) central and matter charges is reported. These invariants give a general definition of the ``topological'' Bekenstein-Hawking entropy formula for extremal black-holes and reduce to the... | ['1998-01-20'] |
9,357 | ['eng'] | ['Ogawa, N'] | ['A Note on Gauge Principle and Spontaneous Symmetry Breaking in Classical Particle Mechanics'] | ['Particle Physics - Theory'] | ['mechanics, classical', 'gauge field theory, U(1)', 'symmetry, spontaneously broken'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801115'] | ['The U(1) gauge field is usually induced from the gauge principle, that is, the extension of global U(1) phase transformation for matter field. However the phase itself is realized only for quantum theory. In this paper we introduce the U(1) gauge field and gauge coupling from the gauge principle classically. The gaug... | ['1998-01-20'] |
9,358 | ['eng'] | ["O'Driscoll, D"] | ['General Abelian Orientifold Models and One Loop Amplitudes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'scattering amplitude, higher-order', 'field theory, orientifold', 'any-dimensional', 'spontaneous compactification', 'group theory', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801114'] | ['We construct a one loop amplitude for any Abelian orientifold point group for arbitary complex dimensions. From this we show several results for orientifolds in this general class of models as well as for low dimensional compactifications. We also discuss the importance and structure of the contribution of orientifol... | ['1998-01-19'] |
9,359 | ['eng'] | ['Lópes-Cardoso, G'] | ['Three-dimensional solutions of M-theory on $S^{1}/Z_{2} \\times T_7$'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'M-theory', 'field theory, torus', 'dimension, 11', 'dimension, 3', 'field equations, solution', 'monopole', 'energy, finite'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801113'] | ['We review various three-dimensional solutions in the low-energy description of M-theory on $S^1/Z_2 \\times T_7$. These solutions have an eleven dimensional interpretation in terms of intersecting M-branes.'] | ['1998-01-19'] |
9,360 | ['eng'] | ['Billó, M', 'Denef, F', 'Fré, P', 'Pesando, I', 'Troost, W', 'Van Proeyen, A', 'Zanon, D'] | ['A detailed case study of the rigid limit in Special Kähler geometry using K3'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'supergravity', 'field theory, Kaehler', 'field theory, Calabi-Yau', 'moduli space', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801112'] | ['This is a résumé of an extensive investigation of some examples in which one obtains the rigid limit of N=2 supergravity by means of an expansion around singular points in the moduli space of a Calabi-Yau 3-fold. We make extensive use of the K3 fibration of the Calabi-Yau manifolds which are considered. At the end th... | ['1998-01-19'] |
9,361 | ['eng'] | ['Penati, S', 'Santambrogio, A', 'Zanon, D'] | ['Non-transversal colliding singularities in F-theory'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'F-theory', 'spontaneous compactification', 'field theory, Calabi-Yau', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801111'] | ['This is a short introduction to the study of compactifications of F-theory on elliptic Calabi-Yau threefolds near colliding singularities. In particular we consider the case of non-transversal intersections of the singular fibers.'] | ['1998-01-19'] |
9,362 | ['eng'] | ['Bertolini, M', 'Iengo, R', 'Scrucca, Claudio A'] | ['Electric and magnetic interaction of dyonic D-branes and odd spin structure'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'duality', 'electromagnetic interaction', 'dyon', 'monopole', 'dimension, >4', 'scattering amplitude'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801110'] | ['We present a general description of electromagnetic RR interactions between pairs of magnetically dual D-branes, focusing on the interaction of a magnetically charged brane with an electrically charged one. In the boundary state formalism, it turns out that while the electric-electric and/or magnetic-magnetic interac... | ['1998-01-19'] |
9,363 | ['eng'] | ['Kachru, S'] | ['String Duality and Novel Theories without Gravity'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'string model', 'duality', 'dimension, 6', 'membrane model', 'supersymmetry', 'M-theory', 'quantization, light cone', 'discrete'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801109'] | ['We describe some of the novel 6d quantum field theories which have been discovered in studies of string duality. The role these theories (and their 4d descendants) may play in alleviating the vacuum degeneracy problem in string theory is reviewed. The DLCQ of these field theories is presented as one concrete way of f... | ['1998-01-16'] |
9,364 | ['eng'] | ['Erlich, J', 'Naqvi, A', 'Randall, L'] | ['The Coulomb Branch of N=2 Supersymmetric Product Group Theories from Branes'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)**M', 'supersymmetry', 'membrane model', 'M-theory', 'instanton', 'renormalization group, beta function', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801108'] | ['We determine the low energy description of N=2 supersymmetric SU(k) product group theories with bifundamental and fundamental matter based on M-theory fivebrane configurations. The dependence on moduli and scales of the coefficients in the non-hyperelliptic Seiberg-Witten curves for these theories is determined by co... | ['1998-01-16'] |
9,365 | ['eng'] | ['Abreu, E M C', 'Braga, N R F', 'Godinho, C F L'] | ['Canonical Transformations and Gauge Fixing in the Triplectic Quantization'] | ['Particle Physics - Theory'] | ['quantization, triplectic', 'Hamiltonian formalism, transformation', 'dependence, gauge', 'transformation, Becchi-Rouet-Stora', 'gauge field theory, Yang-Mills'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801107'] | ['We show that the generators of canonical transformations in the triplectic manifold must satisfy constraints that have no parallel in the usual field antifield quantization. A general form for these transformations is presented. Then we consider gauge fixing by means of canonical transformations in this Sp(2) covaria... | ['1998-01-16'] |
9,366 | ['eng'] | ['Gibbons, G W'] | ['Wormholes on The World Volume'] | ['Particle Physics - Theory'] | ['talk, Santiago 1997/08/18', 'Born-Infeld model', 'fermion', 'soliton', 'string model', 'field theory, M-theory', 'duality', 'dimensional reduction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801106'] | ['I describe some recent work in which classical solutions of Dirac-Born-Infeld theory may be used to throw light on some properties of M-theory. The sources of Born-Infeld theory are the ends of strings ending on the world volume. Equivalently the fundamental string may be regarded as merely a thin and extended piece ... | ['1998-01-16'] |
9,367 | ['eng'] | ['Bastianelli, F', 'Schalm, K E', 'van Nieuwenhuizen, P'] | ['Mode regularization, time slicing, Weyl ordering and phase space path integrals for quantum mechanical nonlinear sigma models'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'quantum mechanics', 'path integral, phase space', 'space-time', 'regularization', 'time, discrete', 'Feynman graph'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801105'] | ["A simple, often invoked, regularization scheme of quantum mechanical path integrals in curved space is mode regularization: one expands fields into a Fourier series, performs calculations with only the first $M$ modes, and at the end takes the limit $M \\to \\infty$. This simple scheme does not manifestly preserve re... | ['1998-01-16'] |
9,368 | ['eng'] | ['Lambert, N D', 'West, Peter C'] | ['$N=2$ Superfields and the M-Fivebrane'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'p-brane, 5', 'supersymmetry', 'superfield', 'gauge field theory, Yang-Mills', 'effective action', 'M-theory', 'fermion, zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801104'] | ['In this paper we provide a manifestly N=2 supersymmetric formulation of the M-fivebrane in the presence of threebrane solitons. The superspace form of four-dimensional effective equations for the threebranes are readily obtained and yield the complete Seiberg-Witten equations of motion for N=2 super-Yang-Mills. A par... | ['1998-01-16'] |
9,369 | ['eng'] | ['Carrington, M E', 'Defu, H', 'Thoma, M H'] | ['Ward Identities in Non-equilibrium QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'finite temperature', 'path integral', 'field theory, scalar', 'fermion', 'propagator', 'vertex function', 'Ward identity', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801103'] | ['We verify the QED Ward identity for the two- and three -point functions at non-equilibrium in the HTL limit. We use the Keldysh formalism of real time finite temperature field theory. We obtain the same Ward identity for the one loop self-energy and the one loop three-point vertex when both diagrams are constructed f... | ['1998-01-16'] |
9,370 | ['eng'] | ['Penati, S', 'Refolli, A', 'Van Proeyen, A', 'Zanon, D'] | ['Duality in $N=2$ nonlinear sigma-models'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'sigma model, nonlinear', 'dimension, 2', 'supersymmetry, superfield', 'duality', 'renormalization group, beta function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801102'] | ['We consider N=2 supersymmetric nonlinear sigma-models in two dimensions defined in terms of the nonminimal scalar multiplet. We compute in superspace the one-loop beta function and show that the classical duality between these models and the standard ones defined in terms of chiral superfields is maintained at the qu... | ['1998-01-16'] |
9,371 | ['eng'] | ['Alimohammadi, M', 'Sadjadi, H M'] | ['Coulomb gas representation of quantum Hall effect on Riemann surfaces'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'gas, Coulomb', 'field theory, action', 'Hall effect', 'dimension, 2', 'Riemann surfaces', 'operator, vertex', 'correlation function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801101'] | ['Using the correlation function of chiral vertex operators of the Coulomb gas model, we find the Laughlin wavefunctions of quantum Hall effect, with filling factor $\\nu =1/m$, on Riemann sufaces with Poincare metric. The same is done for quasihole wavefunctions. We also discuss their plasma analogy.'] | ['1998-01-16'] |
9,372 | ['eng'] | ['Becchi, C', 'Giusto, S', 'Imbimbo, C'] | ['The Holomorphic Anomaly of Topological Strings'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'string model, topological', 'operator, Becchi-Rouet-Stora', 'analytic properties', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801100'] | ['We show that the BRS operator of the topological string B model is not holomorphic in the complex structure of the target space. This implies that the so-called holomorphic anomaly of topological strings should not be interpreted as a BRS anomaly.'] | ['1998-01-16'] |
9,373 | ['eng'] | ['Ambjørn, Jan', 'Boulatov, D V', 'Nielsen, J L', 'Rolf, J', 'Watabiki, Y'] | ['The Spectral Dimension of 2D Quantum Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'Gauss model', 'fractals', 'central charge, < =1', 'model, polymer'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801099'] | ['We show that the spectral dimension d_s of two-dimensional quantum gravity coupled to Gaussian fields is two for all values of the central charge c <= 1. The same arguments provide a simple proof of the known result d_s= 4/3 for branched polymers.'] | ['1998-01-16'] |
9,374 | ['eng'] | ['Hsu, S D H', 'Sannino, F', 'Schechter, J'] | ['Anomaly induced QCD potential and Quark Decoupling'] | ['Particle Physics - Theory'] | ['quantum chromodynamics, effective Lagrangian', 'meson, effective potential', 'anomaly', 'quark, decoupling', 'eta(958), mass', 'potential, analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801097'] | ['We explore the anomaly induced effective QCD meson potential in the framework of the effective Lagrangian approach. We suggest a decoupling procedure, when a flavored quark becomes massive, which mimics the one employed by Seiberg for supersymmetric gauge theories. It is seen that, after decoupling, the QCD potential... | ['1998-01-16'] |
9,375 | ['eng'] | ['Tsutsui, I', 'Kimura, M', 'Kobayashi, H'] | ['Hopf Term, Fractional Spin and Soliton Operators in the O(3) Nonlinear Sigma Model'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'symmetry, O(3)', 'dimension, 3', 'operator, soliton', 'spin, fractional', 'Hamiltonian formalism', 'linear spaces, Hilbert space', 'group theory', 'topology', 'field equations, instanton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801096'] | ['We re-examine three issues, the Hopf term, fractional spin and the soliton operators, in the 2+1 dimensional O(3) nonlinear sigma model based on the adjoint orbit parameterization (AOP) introduced earlier. It is shown that the Hopf Term is well-defined for configurations of any soliton charge $Q$ if we adopt a time i... | ['1998-01-15'] |
9,376 | ['eng'] | ['Ferrara, Sergio'] | ['BPS black holes, supersymmetry and orbits of exceptional groups'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'supergravity', 'soliton', 'duality', 'black hole', 'group theory, exceptional'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801095'] | ['We report on duality invariant constraints, which allow a classification of BPS black holes preserving different fractions of supersymmetry. We then relate this analysis to the orbits of the exceptional groups $E_{6(6)}, E_{7(7)}$, relevant for black holes in five and four dimensions.'] | ['1998-01-15'] |
9,377 | ['eng'] | ['Plefka, J C', 'Waldron, A K'] | ['Asymptotic Supergraviton States in Matrix Theory'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'supergravity', 'dimension, 11', 'matrix model', 'Hamiltonian formalism', 'perturbation theory', 'effective potential', 'scattering amplitude, graviton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801093'] | ['We study the Matrix theory from a purely canonical viewpoint. In particular, we identify free particle asymptotic states of the model corresponding to the 11D supergraviton multiplet along with the split of the matrix model Hamiltonian into a free and an interacting part. Elementary quantum mechanical perturbation th... | ['1998-01-15'] |
9,378 | ['eng'] | ['Bielawski, R'] | ['Asymptotic metrics for SU(N)-monopoles with maximal symmetry breaking'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'monopole', 'differential geometry', 'differential forms, symplectic', 'symmetry breaking', 'asymptotic behavior', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801092'] | ['We compute the asymptotic metrics for moduli spaces of SU(N) monopoles with maximal symmetry breaking. These metrics are exponentially close to the exact monopole metric as soon as, for each simple root, the individual monopoles corresponding to that root are well separated.'] | ['1998-01-15'] |
9,379 | ['eng'] | ['Bielawski, R'] | ['Monopoles and the Gibbons-Manton metric'] | ['Particle Physics - Theory'] | ['monopole', 'moduli space', 'differential geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801091'] | ["We show that, in the region where monopoles are well separated, the L^2-metric on the moduli space of n-monopoles is exponentially close to the T^n-invariant hyperkähler metric proposed by Gibbons and Manton. The proof is based on a description of the Gibbons-Manton metric as a metric on a certain moduli space of sol... | ['1998-01-15'] |
9,380 | ['eng'] | ['Nicolai, Hermann C'] | ['On M-Theory'] | ['Particle Physics - Theory'] | ['talk, Buckow 1997/09/02', 'talk, Bangalore 1997/12/08', 'string model', 'supersymmetry', 'M-theory', 'supergravity', 'dimension, 11', 'invariance, SO(1,2) x SO(16)', 'group theory, representation', 'dimensional reduction', 'dimension, 2', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801090'] | ["This contribution gives a personal view on recent attempts to find a unified framework for non-perturbative string theories, with special emphasis on the hidden symmetries of supergravity and their possible role in this endeavor. A reformulation of $d=11$ supergravity with enlarged tangent space symmetry $\\so$ is di... | ['1998-01-15'] |
9,381 | ['eng'] | ['Lesage, F', 'Saleur, H'] | ['Boundary conditions changing operators in non conformal theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'boundary condition', 'form factor', 'crossing', 'analytic properties', 'sinh-Gordon equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801089'] | ["Boundary conditions changing operators have played an important role in conformal field theory. Here, we study their equivalent in the case where a mass scale is introduced, in an integrable way, either in the bulk or at the boundary. More precisely, we propose an axiomatic approach to determine the general scalar pr... | ['1998-01-15'] |
9,382 | ['eng'] | ['Chaves, M', 'Morales, H'] | ['Unification of SU(2)xU(1) Using a Generalized Covariant Derivative and U(3)'] | ['Particle Physics - Theory'] | ['Salam-Weinberg model', 'unified field theory', 'gauge field theory, U(3)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801088'] | ['A generalization of the Yang-Mills covariant derivative, that uses both vector and scalar fields and transforms as a 4-vector contracted with Dirac matrices, is used to simplify and unify the Glashow-Weinberg-Salam model. Since SU(3) assigns the wrong hypercharge to the Higgs boson, it is necessary to use a special r... | ['1998-01-15'] |
9,383 | ['eng'] | ['Lukas, A', 'Ovrut, B A', 'Waldram, D'] | ['The Ten-dimensional Effective Action of Strongly Coupled Heterotic String Theory'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'approximation, strong coupling', 'dimension, 10', 'M-theory', 'dimensional reduction', 'field theory, orbifold'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801087'] | ['We derive the ten-dimensional effective action of the strongly coupled heterotic string as the low energy limit of M--theory on S^1/Z_2. In contrast to a conventional dimensional reduction, it is necessary to integrate out nontrivial heavy modes which arise from the sources located on the orbifold fixed hyperplanes. ... | ['1998-01-14'] |
9,384 | ['eng'] | ['Granda, L N'] | ['Topological chiral symmetry breaking in SUSY NJL in curved space-time'] | ['Particle Physics - Theory'] | ['Jona-Lasinio-Nambu model', 'supersymmetry', 'symmetry breaking, chiral', 'gravitation, external field', 'effective potential', 'fermion, mass generation', 'expansion 1/N', 'regularization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801086'] | ['The effective potential in the model introduced by Buchbinder-Inagaki-Odintsov (BIO) which represents SUSY NJL model non-minimally coupled with the external gravitational field is found. The topology of the space is considered to be non-trivial. Chiral symmetry breaking under the action of external curvature and non-... | ['1998-01-14'] |
9,385 | ['eng'] | ['Oda, I'] | ['Matrix Theory from Schild Action'] | ['Particle Physics - Theory'] | ['matrix model', 'membrane model, p-brane', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801085'] | ['Starting from the Schild action for membrane, we present an alternative formulation of Matrix Theory. First of all, we construct the Schild action for general bosonic p-brane which is classically equivalent to the Nambu-Goto action for p-brane. Next, based on the constraint obtained from the variational equation for ... | ['1998-01-14'] |
9,386 | ['eng'] | ['Itoyama, H', 'Tokura, A'] | ['USp(2k) Matrix Model'] | ['Particle Physics - Theory'] | ['matrix model, USp(N)', 'orientifold', 'dimension, 0', 'string model', 'supersymmetry', 'dimension, 10', 'anomaly, gauge', 'scaling', 'duality, transformation', 'F-theory', 'effective action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801084'] | ['We discuss theoretical implications of the large k USp(2k) matrix model in zero dimension. The model appears as the matrix model of type IIB superstrings on a large $T^{6}/Z^{2}$ orientifold via the matrix twist operation. In the small volume limit, the model behaves four dimensional and its T dual is six-dimensional... | ['1998-01-14'] |
9,387 | ['eng'] | ['Boulahouache, C', 'Thompson, G'] | ['One Loop Effects in Various Dimensions and D-Branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'effective action', 'any-dimensional', 'dimensional reduction', 'supersymmetry', 'gauge field theory, Yang-Mills', 'fermion, Weyl'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801083'] | ['We calculate some one loop corrections to the effective action of theories in $d$ dimensions that arise on the dimensional reduction of a Weyl fermion in $D$ dimensions. The terms that we are interested in are of a topological nature. Special attention is given to the effective actions of the super Yang Mills theorie... | ['1998-01-14'] |
9,388 | ['eng'] | ['Achúcarro, A', 'De Roo, M', 'Huiszoon, L R'] | ['Unstable vortices do not confine'] | ['Particle Physics - Theory'] | ['vortex, stability', 'charge, magnetic', 'confinement', 'model, geometrical', 'flux, quantization', 'string model', 'supersymmetry', 'symmetry, axial'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801082'] | ['Recently, a geometric model for the confinement of magnetic charges in the context of type II string compactifications was constructed by Greene, Morrison and Vafa. This model assumes the existence of stable magnetic vortices with quantized flux in the low energy theory. However, quantization of flux alone does not i... | ['1998-01-14'] |
9,389 | ['eng'] | ['Behrndt, K', 'Lópes-Cardoso, G', 'de Wit, B', 'Lüst, Dieter', 'Mohaupt, T', 'Sabra, W A'] | ['Higher-Order Black-Hole Solutions in N=2 Supergravity and Calabi-Yau String Backgrounds'] | ['Particle Physics - Theory'] | ['black hole', 'entropy', 'supergravity', 'string model', 'spontaneous compactification, Calabi-Yau'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801081'] | ['Based on special geometry, we consider corrections to N=2 extremal black-hole solutions and their entropies originating from higher-order derivative terms in N=2 supergravity. These corrections are described by a holomorphic function, and the higher-order black-hole solutions can be expressed in terms of symplectic S... | ['1998-01-14'] |
9,390 | ['eng'] | ['Grisaru, Marc T', 'Massar, M', 'Sevrin, A', 'Troost, J'] | ['Some Aspects of N=(2,2), D=2 Supersymmetry'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'sigma model, nonlinear', 'supersymmetry, superfield', 'dimension, 2', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801080'] | ['The off-shell description of N=(2,2) supersymmetric non-linear sigma-models is reviewed. The conditions for ultra-violet finiteness are derived and T-duality is discussed in detail.'] | ['1998-01-14'] |
9,391 | ['eng'] | ['Ueno, T'] | ['General Solution of 7D Octonionic Top Equation'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'dimension, 1', 'dimension, 3', 'dimension, 7', 'mechanics, classical', 'Riemann surfaces, higher-order', 'field equations, solution', 'integrability', 'duality', 'octonion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801079'] | ['The general solution of a 7D analogue of the 3D Euler top equation is shown to be given by an integration on a Riemann surface with genus 9. The 7D model is derived from the 8D $Spin(7)$ invariant self-dual Yang-Mills equation dependent only upon one variable and is regarded as a model describing self-dual membrane i... | ['1998-01-14'] |
9,392 | ['eng'] | ['Smilga, A V'] | ['6+1 Vacua in supersymmetric QCD with $G_2$ Gauge Group'] | ['Particle Physics - Theory'] | ['gauge field theory, G(2)', 'supersymmetry', 'vacuum state', 'symmetry, O(7)', 'symmetry, spontaneously broken', 'instanton', 'moduli space', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801078'] | ['We consider N=1 supersymmetric QCD based on the G_2 gauge group and including 3 chiral matter 7-plets. In that case, the gauge symmetry is broken completely and the instanton-generated superpotential on the classical moduli space is present. If the theory involves the Yukawa term, there are six chirally asymmetric va... | ['1998-01-14'] |
9,393 | ['eng'] | ['Mendes, R V'] | ['Gluon condensate and the vacuum structure of QCD'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3)', 'temporal gauge', 'vacuum state', 'gluon, condensation', 'fermion, mass spectrum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801077'] | ['Phenomenological evidence and analytic approximations to the QCD ground state suggest a complex gluon condensate structure. Exclusion of elementary fermion excitations by the generation of infinite mass corrections is a consequence. In addition the existence of vacuum condensates in unbroken non-abelian gauge theorie... | ['1998-01-14'] |
9,394 | ['eng'] | ['Boonstra, H J', 'Peeters, B', 'Skenderis, K'] | ['Branes and anti-de Sitter spacetimes'] | ['Particle Physics - Theory'] | ['talk, Neuchatel 1997/09/18', 'space-time, anti-de Sitter', 'membrane model', 'duality, transformation', 'singleton', 'supersymmetry', 'supergravity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801076'] | ['We consider a series of duality transformations that leads to a constant shift in the harmonic functions appearing in the description of a configuration of branes. This way, for several intersections of branes, we can relate the original brane configuration which is asymptotically flat to a geometry which is locally ... | ['1998-01-14'] |
9,395 | ['eng'] | ['Takenaga, K'] | ['Softly Broken Supersymmetric Gauge Theories through Compactifications'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'boundary condition', 'symmetry breaking', 'spontaneous compactification', 'effective potential', 'symmetry, U(1)', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801075'] | ['Effects of boundary conditions of fields for compactified space directions on the supersymmetric gauge theories are discussed. For general and possible boundary conditions the supersymmetry is explicitly broken to yield universal soft supersymmetry breaking terms, and the gauge symmetry of the theory can also be brok... | ['1998-01-14'] |
9,396 | ['eng'] | ['Yang, H'] | ['Black Holes with Multiple Charges and the Correspondence Principle'] | ['Particle Physics - Theory'] | ['black hole', 'charge, multiple', 'entropy', 'membrane model', 'dimension, 4-8', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801074'] | ['We consider the entropy of near extremal black holes with multiple charges in the context of the recently proposed correspondence principle of Horowitz and Polchinski, including black holes with two, three and four Ramond-Ramond charges. We find that at the matching point the black hole entropy can be accounted for b... | ['1998-01-14'] |
9,397 | ['eng'] | ['Kaloper, N', 'Linde, Andrei D', 'Bousso, R'] | ['Pre-Big-Bang Requires the Universe to be Exponentially Large From the Very Beginning'] | ['Particle Physics - Theory'] | ['inflationary universe', 'mass', 'matter, density', 'entropy', 'space-time, horizon', 'density, perturbation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801073'] | ["We show that in a generic case of the pre-big-bang scenario, inflation will solve cosmological problems only if the universe at the onset of inflation is extremely large and homogeneous from the very beginning. The size of a homogeneous part of the universe at the beginning of the stage of pre-big-bang (PBB) inflatio... | ['1998-01-14'] |
9,398 | ['eng'] | ['Duff, Michael J', 'Liu, J T', 'Rahmfeld, J'] | ['g=1 for Dirichlet 0-branes'] | ['Particle Physics - Theory'] | ['membrane model', 'magnetic moment', 'spin', 'Kaluza-Klein model', 'fermion, zero mode', 'supergravity', 'duality', 'black hole', 'soliton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801072'] | ['Dirichlet 0-branes, considered as extreme Type IIA black holes with spin carried by fermionic hair, are shown to have the anomalous gyromagnetic ratio g=1, consistent with their interpretation as Kaluza-Klein modes.'] | ['1998-01-14'] |
9,399 | ['eng'] | ['Bytsenko, A A', 'Gonçalves, A E', 'Nojiri, S', 'Odintsov, S D'] | ['Vaccuum energy for the supersymmetric twisted D-brane in constant electromagnetic field'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'supersymmetry', 'electromagnetic field, constant', 'background, torus', 'energy, vacuum state', 'stability', 'effective potential'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9801071'] | ['We calculate the vacuum energy for the twisted SUSY D-brane on toroidal background with constant magnetic or constant electric field. Numerical study of its behaviour for toroidal D-brane (p=2) in constant electric field shows the presence of stable minimum for untwisted or twisted versions of the theory. This indica... | ['1998-01-13'] |
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