1)顶夸克偶素的研究。利用ATLAS实验收集到的LHC二期数据发现顶夸克偶素(8倍标准偏差),成果发表在国际物理学知名综述期刊Reports on Progress in Physics(影响因子20.9)。顶夸克偶素的尺寸约为0.01飞米(10-17米),是目前发现的最小的束缚态。顶夸克是人类目前发现的最重的夸克,质量约为184个氢原子核的质量,寿命约为10-25秒。之前粒子物理的教科书普遍认为由于其寿命太短而不能形成束缚态,该发现颠覆了之前学界的普遍看法,是30年以来顶夸克物理中最重要的成果之一。代表ATLAS合作组在国际会议EPS-HEP2025上首次报告了该成果。受邀在中国LHC物理会议(CLHCP2025)上作大会报告介绍该成果。该成果被评为欧洲核子研究中心(CERN)2025年度科研亮点。 2)希格斯粒子和缪子的耦合测量。在ATLAS实验上发现希格斯粒子衰变到双缪子的证据(3.4倍标准偏差),文章发表在物理学权威期刊《物理评论快报》Phys. Rev. Lett. 135, 231802 (2025)上发表。该论文以“编辑推荐”形式发表,同时被美国物理学会旗下《物理》杂志以“Deciphering the Origin of Quark and Lepton Mass”为题作为研究亮点专门报道。李海峰是该分析的发起者之一(2012年),构建了主要的分析方法,曾担任分析的负责人,代表ATLAS合作组在高能物理顶级国际会议(ICHEP2018)上报告希格斯粒子和缪子耦合的测量结果。2025年获批国家自然科学基金委面向全球的科学研究基金重点项目,经费250万元。 3)参与ATLAS实验对希格斯粒子性质的联合测量,把双缪子衰变到加入到联合分析中,文章发表在《自然》杂志Nature 607 52-59, (2022)。 4)在希格斯粒子发现时期(2011-2012年)作为希格斯粒子到双W玻色子道的主要分析者,直接贡献希格斯粒子的发现,文章发表在Phys. Lett. B716 (2012) 1-29,引用17029次(INSPIRE)。 5)参加西藏阿里原初引力波实验。从事数据分析和室温读出系统的研制,是科技部重点研发课题负责人(获批经费304万元)。阿里原初引力波实验是中国第一个宇宙微波背景辐射实验,用于对早期宇宙演化的研究。
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