Chiral Symmetry Breaking In The AdS/QCD Soft-Wall Model

Journal Article · Thu Dec 17 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293857· OSTI ID:21325679

Kelley, T M; Kapusta, J I ^[1]; Gherghettat, T ^[2]

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1. School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)
2. School of Physics, University of Melbourne, Victoria 3010 (Australia)

We show how to incorporate chiral symmetry breaking in the soft-wall version of the AdS/QCD model by using a modified dilaton profile and a quartic term in the bulk scalar potential. This allows one to separate the dependence on spontaneous and explicit chiral symmetry breaking. Moreover our 5D model automatically incorporates linear trajectories and non chiral-symmetry restoration for highly excited radial states. We compare our resulting mass spectra in the scalar, vector and axial-vector sectors with the respective QCD resonances.

• OSTI ID: 21325679
• Journal Information: AIP Conference Proceedings, Vol. 1182, Issue 1; Conference: 10. conference on the intersections of particle and nuclear physics, San Diego, CA (United States), 26-31 May 2009; Other Information: DOI: 10.1063/1.3293857; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTI DE SITTER GROUP
CHIRAL SYMMETRY
COMPARATIVE EVALUATIONS
EXCITED STATES
MASS SPECTRA
POLARIZATION
POTENTIALS
QUANTUM CHROMODYNAMICS
RESONANCE PARTICLES
STANDARD MODEL
SYMMETRY BREAKING