Pseudoscalar–meson decuplet–baryon coupling constants in light cone QCD
نویسنده
چکیده
Taking into account the SU(3)f breaking effects, the strong coupling constants of the π, K and η mesons with decuplet baryons are calculated within light cone QCD sum rules method. It is shown that all coupling constants, even in the case of SU(3)f breaking, are described in terms of only one universal function. It is shown that for Ξ∗0 → Ξ∗0η transition violation of SU(3)f symmetry is very large and for other channels when SU(3)f symmetry is violated, its maximum value constitutes 10% ÷ 15%. PACS number(s): 11.55.Hx, 13.75.GX, 13.75.Jz, 14.20.-c, 14.40.Aq e-mail: [email protected] permanent address:Institute of Physics,Baku,Azerbaijan e-mail: [email protected] e-mail: [email protected] e-mail: [email protected]
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