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arxiv: hep-ph/0411032 · v1 · submitted 2004-11-02 · ✦ hep-ph · nucl-th

Recent Developments in the Bethe-Salpeter Description of Light Mesons

classification ✦ hep-ph nucl-th
keywords resultsaxialvectorbethe-salpeterlightmassmesonapproachcharge
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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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