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Nonleptonic Omega^{;-}; decays and the Skyrme model (CROSBI ID 93869)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Duplančić, Goran ; Pašagić, Husein ; Praszalowicz, Michal ; Trampetić, Josip Nonleptonic Omega^{;-}; decays and the Skyrme model // Physical review. D, Particles and fields, 65 (2002), 054001-054005-x

Podaci o odgovornosti

Duplančić, Goran ; Pašagić, Husein ; Praszalowicz, Michal ; Trampetić, Josip

engleski

Nonleptonic Omega^{;-}; decays and the Skyrme model

Nonleptonic Omega^{;-}; decay branching ratios are estimated by means of the QCD enhanced effective weak Hamiltonian supplemented by the SU(3) Skyrme model used to estimate the nonperturbative matrix elements. The model has only one free parameter, namely the Skyrme charge $e$, which is fixed through the experimental values of the octet-decuplet mass splitting $\Delta $ and the axial coupling constant $g_{;A};$. The whole scheme is equivalent to that which works well for the nonleptonic hyperon decays. The ratios of calculated amplitudes are in agreement with experiment. However, the absolute values are about twice too large if short-distance corrections and only ground intermediate states are included.

Skyrme model; nonleptonic decays; Omega

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Podaci o izdanju

65

2002.

054001-054005-x

objavljeno

0556-2821

Povezanost rada

Fizika, Tehnologija prometa i transport