Baryon resonances in the strangeness production

TL;DR

This paper investigates specific baryon resonances in strangeness production reactions, demonstrating their significance in explaining experimental data and highlighting the importance of angular distributions for future studies.

Contribution

It introduces a resonance model and effective Lagrangian approach to analyze baryon resonances in strangeness production, aligning theoretical predictions with experimental results.

Findings

Resonance contributions reproduce experimental measurements

Angular distributions reveal reaction dynamics

Potential for future experimental tests

Abstract

We have studied the $N^*(2120)$, $\Delta^*(1940)$, and the possible $\Sigma^*(1380)$ resonances in the $\gamma p \to K^+ \Lambda(1520)$, $pp \to n K^+ \Sigma(1385)$, and $\Lambda p \to \Lambda p \pi^0$ reactions within the resonance model and the effective Lagrangian approach. It is shown that when the contributions from these baryonic states were considered, the current experimental measurement could be well reproduced. In addition, we also demonstrate that the angular distributions provide direct information of these reactions, which could be useful for the investigation of those states and may be tested by future experiments.