Study of the hyperon-nucleon interaction via final-state interactions in exclusive reactions

• Main Author: Nicholas Zachariou, Daniel Watts, Yordanka Ilieva
• Format: Article
• Language: English
• Published: SciPost 2020-02-01
• Series: SciPost Physics Proceedings
• Online Access: https://scipost.org/SciPostPhysProc.3.026

A novel approach that allows access to long-sought information on the Hyperon-Nucleon (YN) interaction was developed by producing a hyperon beam within a few-body nuclear system, and studying final-state interactions. The determination of polarisation observables, and specifically the beam spin asymmetry, in exclusive reactions allows a detailed study of the various final-state interactions and provides us with the tools needed to isolate kinematic regimes where the YN interaction dominates. High-statistics data collected using the CLAS detector housed in Hall-B of the Thomas Jefferson laboratory allows us to obtain a large set of polarisation observables and place stringent constraints on the underlying dynamics of the YN interaction.