Light Meson Spectra and Instanton Induced Forces

Details Light Meson Spectra and Instanton Induced Forces Light Meson Spectra and Instanton Induced Forces

2004-12-14

arxiv.org/abs/hep-ph/0412179v1

Phys.Rev. D58 (1998) 034015

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages

Scientific paper

10.1103/PhysRevD.58.034015

The spinless Salpeter equation supplemented by an instanton induced force is used to describe the spectra of light mesons, including the pseudoscalar ones. The coupling constants of the instanton induced potential, as well as the quark constituent masses are not treated as simple free parameters but are calculated from the underlying instanton theory. Quite good results are obtained provided the quark are considered as effective degrees of freedom with a finite size. A further test of the model is performed by calculating the electromagnetic mass differences between S-wave mesons.

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