Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12469
Title: Supergravity models of (3+1)-dimensional QCD
Author: Csàki, Csaba
Russo, J. G. (Jorge Guillermo)
Sfetsos, Konstadinos
Terning, John,1962-
Keywords: Relativitat general (Física)
Gravitació
Teoria de camps (Física)
Partícules (Física nuclear)
General relativity (Physics)
Gravitation
Field theory (Physics)
Particles (Nuclear physics)
Issue Date: 1999
Publisher: The American Physical Society
Abstract: The most general black M5-brane solution of eleven-dimensional supergravity (with a flat R4 spacetime in the brane and a regular horizon) is characterized by charge, mass and two angular momenta. We use this metric to construct general dual models of large-N QCD (at strong coupling) that depend on two free parameters. The mass spectrum of scalar particles is determined analytically (in the WKB approximation) and numerically in the whole two-dimensional parameter space. We compare the mass spectrum with analogous results from lattice calculations, and find that the supergravity predictions are close to the lattice results everywhere on the two dimensional parameter space except along a special line. We also examine the mass spectrum of the supergravity Kaluza-Klein (KK) modes and find that the KK modes along the compact D-brane coordinate decouple from the spectrum for large angular momenta. There are however KK modes charged under a U(1)×U(1) global symmetry which do not decouple anywhere on the parameter space. General formulas for the string tension and action are also given.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.60.044001
It is part of: Physical Review D, 1999, vol. 60, núm. 4, p. 044001-1-044001-13
URI: http://hdl.handle.net/2445/12469
ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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