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arXiv · 2111.15045

Symmetry analysis of charmonium decays to two-baryon final state

X. H. Mo·J. Y. Zhang
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Abstract

By virtue of SU(3) flavor symmetry, the effective interaction Hamiltonian is derived in tensor form. The strong and electromagnetic breaking effects are taken into account in a form of "spurion" octet, so that the systematical parametrization of all baryon pair final states is realized on basis of the flavor-singlet principle. As an application, the relative phase between the strong and electromagnetic amplitudes is studied in the light of this scenario. In analyzing the data taken at J/$ψ$ resonance region in $e^+e^-$ collider, the details of experimental effects, such as energy spread and initial state radiative correction are taken into consideration in order to obtain the correct results.

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X. H. Mo, J. Y. Zhang. 2021-11-30. Symmetry analysis of charmonium decays to two-baryon final state. https://doi.org/10.1016/j.physletb.2022.136927

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