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arXiv 2602.22119hep-exhep-ph
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在标准模型之外的物理寻找:超子领域

Searches for new physics beyond the Standard Model in hyperon sector

University of Chinese Academy of Sciences(中国科学院大学);National Centre for Nuclear Research(国家核研究中心);Institute of High Energy Physics, Chinese Academy of Sciences(中国科学院高能物理研究所)

Jianyu Zhang, Jinlin Fu, Hai-Bo Li

AI总结:

BESIII实验通过量子纠缠超子-反超子对测量Λ电偶极矩,突破原有限制,为寻找标准模型外物理提供关键约束。

摘要:

超子物理提供了一个独特的实验室,用于探测强度前沿并寻找标准模型之外的物理。本文综述了BESIII实验最近的结果,包括暗重子、无质量BSM粒子和不可见衰变模式的开创性研究,以及重子和轻子数违反的研究。一个重点是利用量子纠缠的超子-反超子对确定Λ电偶极矩,灵敏度比之前的限制高三个数量级。这些测量为新物理场景提供了世界领先的约束,并为下一代精度研究奠定了坚实基础。通过整合实验进展与理论发展及未来设施前景,本文强调了超子探测器在检验自然基本定律中的关键作用。

英文摘要:

Hyperon physics offers a distinctive laboratory for probing the intensity frontier and searching for physics beyond the Standard Model. This review summarizes recent results from the BESIII experiment, including pioneering studies of dark baryons, massless BSM particles, and invisible decay modes, together with investigations of baryon- and lepton-number violation. A central highlight is the determination of the $Λ$ electric dipole moment using quantum-entangled hyperon-antihyperon pairs, achieving a sensitivity three orders of magnitude beyond previous limits. These measurements provide world-leading constraints on new physics scenarios and establish a robust foundation for next-generation precision studies. By integrating experimental progress with theoretical developments and future facility prospects, this review emphasizes the critical role of hyperon probes in testing the fundamental laws of nature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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