Production and decay of polarized hyperon-antihyperon pairs
作者机构：Department of Physics and Astronomy Uppsala University UppsalaSweden Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China National Centre for Nuclear ResearchWarsawPoland University of Science and Technology of ChinaHefei 230026China
出 版 物：《Chinese Physics C》 (中国物理C（英文版）)
年 卷 期：2023年第47卷第5期
页 面：29-48页
核心收录：
学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
基 金：the Knut and Alice Wallenberg Foundation (2016.0157,2021.0299)(Sweden) the Swedish Research Council (2019-04594,2021-04567)(Sweden) The Swedish Foundation for International Cooperation in Research and Higher Education (CH2018-7756) the Olle Engkvist Foundation (200-0605)(Sweden) Lundstrom-Aman Foundation (Sweden) the National Natural Science Foundation of China (11935018,12122509) the CAS President’s International Fellowship Initiative,(2021PM0014)(China) Polish National Science Centre (2019/35/O/ST2/02907)(Poland) the Double First-Class university project foundation of USTC (China)
主 题：hyperon polarization CP violation form factors
摘 要：Polarized hyperon-antihyperon pairs shed light on various unresolved puzzles in contemporary physics:How the strong interaction confines quarks into hadrons, how accurately the Standard Model describes microcosmos and even why our universe consists of so much more matter than antimatter. Thanks to their weak, parity violating decays, hyperons reveal their spin properties. This can be exploited e.g. the decomposition of the electromagnetic structure of hyperons, precision tests of flavour symmetry and searches for CP violation. At the BESⅢ experiment at BEPC-Ⅱ, Beijing, China, hyperon-antihyperon pairs can be produced in abundance. Recently collected large data samples have triggered the development of new methods that provide unprecedented precision and a plethora of new results have emerged. When applied at future high-intensity facilities like PANDA and STCF, precision physics will be taken to a new level which can contribute to the solution to the aforementioned puzzles.
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