LHCb上底介子谱学的实验研究现状与展望OA
STATUS AND PROSPECTS OF EXCITED BOTTOM MESONS AT LHCB
底介子谱学的研究是高能物理中重要的研究课题之一.由于重夸克质量和寿命上的特殊,重味系统中往往会出现特殊的现象.底介子作为开放味强子,呈现出丰富的谱学结构.研究底介子谱学,为深入理解强相互作用的束缚本质提供关键信息.LHCb作为大型强子对撞机(LHC)上唯一针对重味物理而优化的实验,致力于通过研究重味强子的稀有衰变和CP破坏来间接寻找超出粒子物理标准模型的新物理,同时也是研究底强子谱学的优秀平台.在过去十几年里,LHCb实验开展了多项底介子谱学研究,报道了多个底介子激发态的首次发现,并将已知底介子性质的测量精度提升至新水平.伴随着LHCb第一次大型升级的结束和运行三期结束临近,本文综合性的总结介绍了LHCb实验多年来在底介子谱学方面的进展,并进一步展望了未来LHCb的技术升级将为底介子谱学研究带来的前景.
It has been one of the most significant subjects in the high energy physics experi-ment to study excited bottom meson spectroscopy.Due to the distinctive mass and lifetimes of heavy quarks,heavy-flavor systems display unique quantum phenomena.As open-flavor had-rons,bottom mesons exhibit a rich spectroscopic structure.Investigating bottom meson spec-troscopy deepens our understanding of the confining nature of the strong interaction. Being the sole LHC experiment specifically designed for heavy-flavor physics,LHCb is dedicated to indirectly searching for physics beyond the Standard Model(BSM physics)via the study of rare decays and CP violation of heavy-flavor hadrons,while also serving as an ideal platform for bottom hadron spectroscopy research.In the past 15 years,there have been a great amount of research on excited bottom mesons at LHCb,including the first observa-tions of multiple excited bottom mesons and significantly enhancing measurement precision for known bottom mesons.With the recent completion of LHCb's first major upgrade and the approaching conclusion of Run 3 operations,this paper summarizes the experiment's groundbreaking contributions to bottom meson spectroscopy.Furthermore,it provides an outlook on the opportunities for bottom meson spectroscopy from future LHCb detector up-grades.
郑凯琦;何吉波;许智豪
国科大杭州高等研究院基础物理与数学科学学院,浙江 杭州 310024||中国科学院大学,物理科学学院,北京 100049||中国科学院理论物理所,北京 100190国科大杭州高等研究院基础物理与数学科学学院,浙江 杭州 310024||中国科学院大学,物理科学学院,北京 100049||中国科学院理论物理所,北京 100190中国科学院大学,物理科学学院,北京 100049
底介子质量谱激发态LHCb
bottom mesonspectroscopyexcited statesLHCb
《物理与工程》 2026 (3)
66-78,13
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