A covariant study of tensor mesons

Abstract

We investigate tensor mesons as quark-antiquark bound states in a fully covariant Bethe-Salpeter equation. As a first concrete step we report results for masses of J^{PC}=2^{++} mesons from the chiral limit up to bottomonium and sketch a comparison to experimental data. All covariant structures of the fermion-antifermion system are taken into account and their roles and importance discussed in two different bases. We also present the general construction principle for covariant Bethe-Salpeter amplitudes of mesons with any spin and find eight covariant structures for any J>0.

5 pages, 2 figures, 1 table

References in corpus (10)

• Infrared Properties of QCD from Dyson-Schwinger equations
• Pinch Technique: Theory and Applications
• The quark-gluon vertex in Landau gauge QCD: Its role in dynamical chiral symmetry breaking and quark confinement
• Perspective on rainbow-ladder truncation
• A Canonical Ds(2317)?
• Chiral symmetry patterns of excited mesons with the Coulomb-like linear confinement
• Matrix algorithms for solving (in)homogeneous bound state equations
• Delta-baryon mass in a covariant Faddeev approach
• Rho-meson, Bethe-Salpeter equation, and the far infrared
• Microscopic derivation of the pion coupling to heavy-light mesons