$\Xi(1620)$ production in $K^- p$ scattering process

Author:

Quan-Yun Guo, Zi-Li Yue, Dian-Yong Chen

Keyword:

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Experiment (hep-ex)

journal:

date:

2023-11-28 00:00:00

Abstract

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

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