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Title: Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD

Abstract

The anti-de Sitter space/conformal field theory (AdS/CFT) correspondence may offer new and useful insights into the nonperturbative regime of strongly coupled gauge theories such as quantum chromodynamics (QCD). Recently, a modified soft-wall AdS/QCD model incorporated independent sources for explicit and spontaneous chiral symmetry breaking and linear confinement. This model contains a modified dilaton and higher-order interaction terms in the Lagrangian. Within this model we explore the radial pseudoscalar mass spectrum using two different representations of the pion field. We find the mass eigenvalues associated with each representation show the equivalence between the two, and we find good agreement with the pion masses. The Gell-Mann-Oakes-Renner (GOR) relation is naturally obtained.

Authors:
; ;  [1]
  1. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
Publication Date:
OSTI Identifier:
21503905
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 83; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.83.016002; (c) 2011 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANTI DE SITTER SPACE; CHIRAL SYMMETRY; CONFINEMENT; CONFORMAL INVARIANCE; EIGENVALUES; GAUGE INVARIANCE; INTERACTIONS; LAGRANGIAN FUNCTION; MASS; MASS SPECTRA; PIONS; QUANTUM CHROMODYNAMICS; QUANTUM FIELD THEORY; SIMULATION; STRONG-COUPLING MODEL; SYMMETRY BREAKING; BOSONS; ELEMENTARY PARTICLES; FIELD THEORIES; FUNCTIONS; HADRONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MATHEMATICAL SPACE; MESONS; PARTICLE MODELS; PSEUDOSCALAR MESONS; SPACE; SPECTRA; SYMMETRY

Citation Formats

Kelley, Thomas M., Bartz, Sean P., and Kapusta, Joseph I.. Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.83.016002.
Kelley, Thomas M., Bartz, Sean P., & Kapusta, Joseph I.. Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD. United States. doi:10.1103/PHYSREVD.83.016002.
Kelley, Thomas M., Bartz, Sean P., and Kapusta, Joseph I.. Sat . "Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD". United States. doi:10.1103/PHYSREVD.83.016002.
@article{osti_21503905,
title = {Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD},
author = {Kelley, Thomas M. and Bartz, Sean P. and Kapusta, Joseph I.},
abstractNote = {The anti-de Sitter space/conformal field theory (AdS/CFT) correspondence may offer new and useful insights into the nonperturbative regime of strongly coupled gauge theories such as quantum chromodynamics (QCD). Recently, a modified soft-wall AdS/QCD model incorporated independent sources for explicit and spontaneous chiral symmetry breaking and linear confinement. This model contains a modified dilaton and higher-order interaction terms in the Lagrangian. Within this model we explore the radial pseudoscalar mass spectrum using two different representations of the pion field. We find the mass eigenvalues associated with each representation show the equivalence between the two, and we find good agreement with the pion masses. The Gell-Mann-Oakes-Renner (GOR) relation is naturally obtained.},
doi = {10.1103/PHYSREVD.83.016002},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 1,
volume = 83,
place = {United States},
year = {2011},
month = {1}
}