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Electromagnetic transitions of the singly charmed baryons with spin 3/2

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arxiv 2101.10653 v1 pith:GQSVJIBZ submitted 2021-01-26 hep-ph hep-lat

June-Young Kim , Hyun-Chul Kim , Ghil-Seok Yang , Makoto Oka This is my paper
classification hep-phhep-lat
keywords spincontributionselectromagneticfactorsformsymmetrytransitionbaryon
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We investigate the electromagnetic transitions of the singly charmed baryons with spin 3/2, based on a pion mean-field approach, also known as the chiral quark-soliton model, taking into account the rotational $1/N_c$ corrections and the effects of flavor SU(3) symmetry breaking. We examine the valence- and sea-quark contributions to the electromagnetic transition form factors and find that the quadrupole form factors of the sea-quark contributions dominate over those of the valence-quark ones in the smaller $Q^2$ region, whereas the sea quarks only provide marginal contributions to the magnetic dipole transition form factors of the baryon sextet with spin 3/2. The effects of the flavor SU(3) symmetry breaking are in general very small except for the forbidden transition $\Xi_c^0\gamma\to \Xi_c^{*0}$ by $U$-spin symmetry. We also discuss the widths of the radiative decays for the baryon sextet with spin 3/2, comparing the present results with those from other works.

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