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High Energy Physics - Theory

arXiv:1503.04820 (hep-th)
[Submitted on 16 Mar 2015]

Title:Baryon and chiral symmetry breaking in holographic QCD

Authors:Alexander Gorsky, Sven Bjarke Gudnason, Alexander Krikun
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Abstract:We study the relationship between chiral symmetry breaking and baryons in holographic QCD. We construct a soliton with unit baryon charge in the presence of a nonzero mean value of the scalar bifundamental field, which is dual to the chiral condensate. We obtain a relation between the chiral condensate and the mass of the baryon and find in a clear-cut way that at large values of the condensate the holographic soliton is no longer located on the IR wall. Instead it is split into two halves, which are symmetrically located on the left and right flavor branes. On the other hand we find that the local value of the quark condensate is suppressed in the core of the soliton, which is evidence for a partial chiral symmetry restoration inside the baryon.
Comments: 26 pages, 8 figures
Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)
Report number: NORDITA-2015-29
Cite as: arXiv:1503.04820 [hep-th]
  (or arXiv:1503.04820v1 [hep-th] for this version)
  https://doi.org/10.48550/arXiv.1503.04820
Journal reference: Phys. Rev. D 91, 126008 (2015)
Related DOI: https://doi.org/10.1103/PhysRevD.91.126008

Submission history

From: Alexander Krikun [view email]
[v1] Mon, 16 Mar 2015 20:00:46 UTC (883 KB)
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