Effective chiral symmetry restoration for heavy-light mesons

We study the spectrum of heavy-light mesons within a model with linear instantaneous confining potential. The single-quark Green function and spontaneous breaking of chiral symmetry are obtained from the Schwinger-Dyson (gap) equation. For the meson spectrum we derive a Bethe-Salpeter equation. We s...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2014-07, Vol.90 (1), Article 014004
Main Authors: Sazonov, V. K., Schaffernak, G., Wagenbrunn, R. F.
Format: Article
Language:English
Subjects:
Bethe-Salpeter equation
Confining
Cosmology
Mathematical analysis
Mathematical models
Mesons
Restoration
Symmetry
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Summary:We study the spectrum of heavy-light mesons within a model with linear instantaneous confining potential. The single-quark Green function and spontaneous breaking of chiral symmetry are obtained from the Schwinger-Dyson (gap) equation. For the meson spectrum we derive a Bethe-Salpeter equation. We solve this equation numerically in the heavy-light limit and obtain effective restoration of chiral and U(1) sub(A) symmetries at large spins.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.90.014004