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arXiv · hep-ph/0605247

Effective restoration of chiral symmetry in excited mesons

R. F. Wagenbrunn·L. Ya. Glozman
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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.

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R. F. Wagenbrunn, L. Ya. Glozman. 2006-10-20. Effective restoration of chiral symmetry in excited mesons. https://doi.org/10.1016/j.physletb.2006.10.044

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