Strange and charmed baryon productions with an instanton interaction

Abstract

We study strange and charmed baryon productions, $\pi +p\to K(D)+Y(Y_c)$, where $Y(Y_c)$ is a strange(charmed) baryon of a ground or an excited state. We propose a new production mechanism where two quarks in the baryon participate in the reaction (two-quark process), which enables excitation of both $\lambda$- and $\rho$-modes of the baryons. To deal with the two-quark process, we consider the 't Hooft six-quark interaction from the instanton model. We study production rates in relation with the structure of charmed baryons for the forward angle scattering.

Comments: 4 pages, 1 figure; Proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018), Tsukuba, Japan, 13-17 November 2018