Effective restoration of chiral symmetry in excited mesons

Abstract

A fast restoration of chiral symmetry in excited mesons is demonstrated. A minimal "realistic" chirally symmetric confining model is used, where the only interaction between quarks is the linear instantaneous Lorentz-vector confining potential. Chiral symmetry breaking is generated via the nonperturbative resummation of valence quarks self-energy loops and the meson bound states are obtained from the Bethe-Salpeter equation. The excited mesons fall into approximate chiral multiplets and lie on the approximately linear radial and angular Regge trajectories, though a significant deviation from the linearity of the angular trajectory is observed.

12 pp. One more clarifying paragraph has been added. To appear in Phys. Lett. B

References in corpus (3)

• On Goldstone bosons decoupling from high-lying hadrons
• The operator product expansion does not imply parity doubling of hadrons
• Effective chiral restoration in the hadronic spectrum and QCD

Cited by in corpus (9)

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• Chiral symmetry patterns of excited mesons with the Coulomb-like linear confinement
• Chiral symmetry and the string description of excited hadrons
• Alternative experimental evidence for chiral restoration in excited baryons
• Chiral restoration in excited nucleons versus SU(6)
• Probing the infrared quark mass from highly excited baryons
• Mixing and $m_q$ dependence of axial vector mesons in the Coulomb gauge QCD model
• Effective Chiral Symmetry Restoration for Heavy-Light Mesons