Ξ(1620)- production in K-p scattering process

Abstract

In the present work, the production of $\mathrm{\Xi }{(1620)}^{-}$ in the $K^{-}p$ scattering process is investigated by using an effective Lagrangian approach, where $\mathrm{\Xi }{(1620)}^{-}$ is considered as a $K^{-}\mathrm{\Lambda }$ molecular state. Our estimations indicate that the cross sections for $K^{-}p\to K^{+}\mathrm{\Xi }{(1620)}^{-}$ are $(1.{48}_{-0.69}^{+1.12})\mathrm{\mu }\text{b}$ at $P_K=2.8\text{GeV}$, where the uncertainties are resulted from the variation of the model parameter. As for the $K^{-}p\to {\pi }^0{\mathrm{\Xi }}^{-}{K}^{+}$ process, the cross sections are estimated to be $(0.{61}_{-0.29}^{+0.47})\mathrm{\mu }\text{b}$ at $P_K=2.87\text{GeV}$, which is consistent with the experimental measurements.