Nonlinear boundary dynamics and chiral symmetry in holographic QCD
Name
Albrecht-2012-Nonlinear boundary dynamics and chiral symmetry in holographic QCD.pdf
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194.94 KB
Format
Adobe PDF
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Author(s)
Wilcox, Ronald James
Albrecht, Dylan
Erlich, Joshua
Date Issued
June 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
Albrecht, Dylan, Joshua Erlich, and Ronald Wilcox. “Nonlinear Boundary Dynamics and Chiral Symmetry in Holographic QCD.” Physical Review D 85.11 (2012): 114012. © 2012 American Physical Society.
Version
Final published version
Abstract
In a hard-wall model of holographic QCD, we find that nonlinear boundary dynamics are required in order to maintain the correct pattern of explicit and spontaneous chiral symmetry breaking beyond leading order in the pion fields. With the help of a field redefinition, we relate the requisite nonlinear boundary conditions to a standard Sturm-Liouville system. Observables insensitive to the chiral limit receive only small corrections in the improved description, and classical calculations in the hard-wall model remain surprisingly accurate.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.114012
