Ξ(1620)${}^{-}$ production in K${}^{-}$ p scattering process

In the present work, the production of Ξ(1620)${}^{-}$ in the K${}^{-}$ p scattering process is investigated by using an effective Lagrangian approach, where Ξ(1620)${}^{-}$ is considered as a K${}^{-}$ Λ molecular state. Our estimations indicate that the cross sections for K${}^{-}$ p → K${}^{+}$ Ξ(1620)${}^{-}$ are (1.48${}_{-0.69}^{+1.12}$) µb at P${}_K$ = 2.8 GeV, where the uncertainties are resulted from the variation of the model parameter. As for the K${}^{-}$ p → π${}^0$ Ξ${}^{-}$ K${}^{+}$ process, the cross sections are estimated to be (0.61${}_{-0.29}^{+0.47}$) µb at P${}_K$ = 2.87 GeV, which is consistent with the experimental measurements.