https://doi.org/10.1051/epjconf/202430301027
Study of hyperon-nucleon interactions at BESIII
School of Physics and Electronics, Henan University, Kaifeng 475004, People’s Republic of China
* e-mail: zhangjielei@henu.edu.cn
** This work is supported by National Natural Science Foundation of China (NSFC) under Contracts No. 12375071.
Published online: 25 September 2024
Hyperon-nucleon interactions are important to understand quantum chromodynamics and so-called “hyperon puzzle” of neutron star, but limited by the availability and short-lifetime of hyperon beams, the progress of relevant research is very slow. A novel method is used to study hyperon-nucleon interactions based on hyperons produced in the decays of 10 billion J/ψ events collected with the BESIII detector at the BEPCII storage ring, and the target material is beam pipe. The reactions Ξ0n → Ξ− p and ΛN → Σ+X have been observed and measured at BESIII. This is the first study of hyperon-nucleon interactions in electron-positron collisions and opens up a new direction for such research.
© The Authors, published by EDP Sciences, 2024
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