English

Production of $\Xi(1530)$ in the $K^- p$ scattering process

High Energy Physics - Phenomenology 2026-03-20 v2

Abstract

In the present work, we examine the production of Ξ(1530)\Xi(1530) in the KpK+Ξ(1530)K^- p \to K^{+} \Xi(1530)^{-} and KpK0Ξ(1530)0K^- p \to K^{0} \Xi(1530)^{0} reactions utilizing an effective Lagrangian approach. To accurately fit the cross sections for both processes, we include nine Λ\Lambda and Σ\Sigma hyperons and their resonances in both ss- and uu-channel processes. Considering the discrepancy of the measured cross sections for KpK+Ξ(1530)K^- p \to K^+ \Xi(1530)^- within the range s=[2.087,2.168] GeV\sqrt{s}=[2.087, 2.168]\ \mathrm{GeV}, we employ two distinct fitting strategies: a uniform weighting scheme (model A) and a different weighting approach (model B). A comparative analysis suggests that model A yields a superior global agreement with experimental data compared to model B. Beyond fitting the cross sections, we also estimate the individual contributions from various intermediate states. Our results reveal that the cross section arising from the Σ(1193)\Sigma(1193) intermediate process is dominant. Furthermore, we predict different cross sections for KpK+Ξ(1530)K^- p\to K^+\Xi(1530)^- and KpK0Ξ(1530)0K^- p\to K^0\Xi(1530)^0 at several representative center-of-mass energies, providing testable predictions for forthcoming J-PARC experiments.

Keywords

Cite

@article{arxiv.2507.02232,
  title  = {Production of $\Xi(1530)$ in the $K^- p$ scattering process},
  author = {Quan-Yun Guo and Jing Liu and Peiwen Wu and Dian-Yong Chen},
  journal= {arXiv preprint arXiv:2507.02232},
  year   = {2026}
}