CMS实验中希格斯粒子的寻找

Higgs searches in the Compact Muon Solenoid experiment

2012年7月4日,欧洲核子研究中心(CERN)的大型强子对撞机(LHC)上进行的两个实验—ATLAS实验和CMS实验,发现了一个质量大约为125 GeV的新粒子。这个粒子后来进一步被证实,其与粒子物理标准模型预言的希格斯粒子的属性相吻合。文章首先简单介绍了希格斯粒子及其发现历程,以及LHC上进行的CMS实验,然后主要介绍了CMS上希格斯粒子的发现和它的性质的测量结果,以及中国科学家们在其中做出的重要贡献。

On the 4th of July, 2012, the ATLAS （A Toroidal LHC Apparatus） and CMS （Compact Muon Solenoid） collaborations at the Large Hadron Collider （LHC） of CERN announced the discovery of a narrow resonance with mass near 125 GeV, whose properties were proved to be consistent with that of the Higgs boson predicted in the standard model of particle physics. We first present a brief review of the Higgs particle and a short introduction to the CMS experiment. Then the discovery of the Higgs particle, the measurements of its properties, and the contributions of Chinese scientists and engineers are described.