Recent Developments in the Bethe-Salpeter Description of Light Mesons

Details Recent Developments in the Bethe-Salpeter Description of Light Mesons Recent Developments in the Bethe-Salpeter Description of Light Mesons

2004-11-02

arxiv.org/abs/hep-ph/0411032v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 1 figure. Talk given at Quark Confinement and the Hadron Spectrum VI 2004, Italy 21-25 Sept. To appear in the (AIP) p

Scientific paper

10.1063/1.1920983

Results for the light meson mass spectrum from a Bethe-Salpeter approach are presented. The results obtained in the standard framework are Poincar\'{e} covariant and compare favourably with lattice results. Using a more sophisticated scheme, the pseudoscalar, vector and $1^{++}$ ($a_1/f_1$) axialvector charge eigenstate masses are unaltered whereas the $1^{+-}$ ($b_1/h_1$) axialvector meson mass is raised.

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