scholarly journals CHIRAL SYMMETRY BREAKING IN A SOFT-WALL MODEL OF AdS/QCD

2010 ◽  
Vol 25 (02n03) ◽  
pp. 453-463 ◽  
Author(s):  
JOSEPH I. KAPUSTA ◽  
THOMAS M. KELLEY ◽  
TONY GHERGHETTA
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Mass Spectra ◽  
Chiral Symmetry Breaking ◽  
Scalar Potential ◽  
Axial Vector ◽  
Wall Model ◽  
Quartic Term ◽  
Soft Wall Model ◽  
Soft Wall

We incorporate chiral symmetry breaking in a 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. The resulting mass spectra in the scalar, vector and axial-vector sectors compares favorably with the respective QCD resonances.

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

2009 ◽  
Author(s):  
T. M. Kelley ◽  
T. Gherghettat ◽  
J. I. Kapusta ◽  
Marvin L. Marshak
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Wall Model ◽  
Soft Wall Model ◽  
Soft Wall

scholarly journals SOFT WALL MODEL WITH INVERSE EXPONENTIAL PROFILE AS A MODEL FOR THE AXIAL AND PSEUDOSCALAR MESONS

2012 ◽  
Vol 27 (29) ◽  
pp. 1250171 ◽  
Author(s):  
S. S. AFONIN
Keyword(s):  
Field Theory ◽  
Chiral Symmetry Breaking ◽  
Axial Vector ◽  
Free Field ◽  
Strongly Coupled ◽  
Original Proposal ◽  
Pseudoscalar Mesons ◽  
Soft Wall Model ◽  
Soft Wall ◽  
Gauge Gravity

According to the conjecture of the gauge/gravity duality, a strongly coupled 4D field theory may be described by a dual 5D theory which is a free field theory in the first approximation. The usual description of the axial-vector sector in the bottom–up AdS/QCD models includes, however, the quartic interaction with a bulk scalar field. A question arises, whether it is possible to describe some aspects of the chiral symmetry breaking (CSB) in a way more consistent with the original proposal, i.e. within a free 5D theory? We suggest that a natural candidate for this purpose is the soft wall (SW) model with inverse exponential profile.

scholarly journals Chiral symmetry breaking in the soft-wall AdS/QCD model

2009 ◽  
Vol 79 (7) ◽  
Author(s):  
Tony Gherghetta ◽  
Joseph I. Kapusta ◽  
Thomas M. Kelley
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Soft Wall

scholarly journals Spontaneous chiral symmetry breaking in holographic soft wall models

2021 ◽  
Vol 104 (12) ◽  
Author(s):  
Alfonso Ballon-Bayona ◽  
Luis A. H. Mamani ◽  
Diego M. Rodrigues
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Spontaneous Chiral Symmetry Breaking ◽  
Soft Wall ◽  
Wall Models
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