Pseudoscalar Meson Radial Excitations

Details Pseudoscalar Meson Radial Excitations Pseudoscalar Meson Radial Excitations

2004-06-10

arxiv.org/abs/nucl-th/0406030v1

Phys.Rev.C70:042203,2004

Physics

Nuclear Physics

Nuclear Theory

5 pages, 3 figures

Scientific paper

10.1103/PhysRevC.70.042203

Goldstone modes are the only pseudoscalar mesons to possess a nonzero leptonic decay constant in the chiral limit when chiral symmetry is dynamically broken. The decay constants of their radial excitations vanish. These features and aspects of their impact on the meson spectrum are illustrated using a manifestly covariant and symmetry preserving model of the kernels in the gap and Bethe-Salpeter equations.

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