Consequences of the partial restoration of chiral symmetry in an AdS/QCD model

Journal Article · Thu May 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.096011· OSTI ID:21250167

Kim, Youngman ^[1]; Lee, Hyun Kyu ^[2]

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1. School of Physics, Korea Institute for Advanced Study, Seoul 130-722 (Korea, Republic of)
2. Department of Physics and BK21 Division of Advanced Research and Education in Physics, Hanyang University, Seoul 133-791 (Korea, Republic of)

Chiral symmetry is an essential concept in understanding QCD at low energy. We treat the chiral condensate, which measures the spontaneous breaking of chiral symmetry, as a free parameter to investigate the effect of partially restored chiral symmetry on the physical quantities in the framework of an AdS/QCD model. We observe an interesting scaling behavior among the nucleon mass, pion decay constant, and chiral condensate. We propose a phenomenological way to introduce the temperature dependence of a physical quantity in the AdS/QCD model with the thermal AdS metric.

• OSTI ID: 21250167
• Journal Information: Physical Review. D, Particles Fields, Vol. 77, Issue 9; Other Information: DOI: 10.1103/PhysRevD.77.096011; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
CONDENSATES
DE SITTER GROUP
MASS
METRICS
NUCLEONS
PARTICLE DECAY
PIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SCALING
STRING MODELS
SYMMETRY BREAKING
TEMPERATURE DEPENDENCE