arXiv:2012.07024·v1·High Energy Physics — Phenomenology

Light-cone sum rules for radial excitation of decuplet to octet baryons electromagnetic transition form factors

Abstract

Magnetic dipole moment form factor, $G_{M}^{(2)} (Q^{2})$ , describing the radial excitation of decuplet baryons to octet baryons electromagnetic transitions as well as the ratios, $R_{S M} = - \frac{1}{4 m _{2}^{2}} 4 m_{2}^{2} Q^{2} + (m_{2}^{2} - Q^{2} - m_{1}^{2})^{2} \frac{G _{C}^{(2)} ( Q ^{2} )}{G _{M}^{(2)} ( Q ^{2} )}$ and $R_{E M} = - \frac{G _{E}^{(2)} ( Q ^{2} )}{G _{M}^{(2)} ( Q ^{2} )}$ are calculated in the framework of light-cone sum rules. We also estimate the degree of the violation of U-spin symmetry. The obtained results for the multipole form factors can be useful in searching the properties of radially excited baryon states.

Comments: 21 pages, 7 figures