Holographic QCD and Pion Mass

Abstract

To realize massive pions, we study variations of the holographic model of massless QCD using the D4/D8/anti-D8 brane configuration proposed by Sakai and Sugimoto. We propose deformations which break the chiral symmetry explicitly and compute the mass of the pions and vector mesons. The observed value of the pion mass can be obtained. We also argue a chiral perturbation corresponding to our deformation.

23pages, minor changes, references added

References in corpus (4)

• A holographic model of deconfinement and chiral symmetry restoration
• Chiral symmetry breaking as open string tachyon condensation
• NJL and QCD from String Theory
• On Dp-Dp+4 systems, QCD dual and phenomenology

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• Holographic QCD: Past, Present, and Future
• Domain Walls with Non-Abelian Clouds
• Baryons and the Chern-Simons term in holographic QCD with three flavors
• Confront Holographic QCD with Regge Trajectories of vectors and axial-vectors
• Gravitational form factors of pion from top-down holographic QCD
• Chern-Simons 5-form and Holographic Baryons
• A New Model of Holographic QCD and Chiral Condensate in Dense Matter
• A magnetic instability of the non-Abelian Sakai-Sugimoto model
• Chiral Condensate in Holographic QCD with Baryon Density
• Quark Mass in the Sakai-Sugimoto Model of Chiral Symmetry Breaking
• Chiral Symmetry Breaking in Brane Models
• Intersecting D4-branes Model of Holographic QCD and Tachyon Condensation
• Scalar-glueball-mediated scale-anomaly dominance of the confining pressure of the pion in holographic QCD
• Low Energy Pion-Pion Elastic Scattering in Sakai-Sugimoto Model
• Background field and time dependence effects in holographic models