Abstract
Using events collected with the BESIII detector at the BEPCII storage ring, the process is studied, where the baryon is produced in the process and the neutron is a component of the , , and nuclei in the beam pipe. A clear signal is observed with a statistical significance of . The cross section of the reaction is determined to be at the momentum of , where the first uncertainty is statistical and the second is systematic. No significant -dibaryon signal is observed in the final state. This is the first study of hyperon-nucleon interactions in electron-positron collisions and opens up a new direction for such research.
- Received 27 April 2023
- Revised 20 May 2023
- Accepted 25 May 2023
DOI:https://doi.org/10.1103/PhysRevLett.130.251902
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society