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近期，南京大学ATLAS实验团队通过精细研究希格斯粒子与陶轻子、弱作用规范玻色子的相互作用，在希格斯粒子的电荷共轭(C)和宇称反演(P)联合对称变换性质研究中取得重要进展。
Today, at the Moriond conference, the ATLAS and CMS collaborations have both presented the observation of a very rare process: the simultaneous production of four top quarks. They were observed using ...
Geneva, 23 March 2023. The W boson, a fundamental particle that carries the charged weak force, is the subject of a new precision measurement of its mass by the ATLAS experiment at CERN.
When the Large Hadron Collider (LHC) is operating, it produces more than one billion proton–proton interactions every second. But exactly how many take place in the LHC experiments? Critical to every ...
After over three years of upgrade and maintenance work, the Large Hadron Collider began its third period of operation (Run 3) in July 2022. Since then, the world’s most powerful particle accelerator h...
Since discovering the Higgs boson 10 years ago, the ATLAS and CMS collaborations have been carrying out numerous measurements of its properties and its interactions with other particles, which have be...
In the Standard Model of particle physics, the Brout–Englert–Higgs mechanism provides mass to elementary particles. While physicists are carrying out direct studies of the Higgs boson to test this mec...
希格斯粒子在描述微观世界的“标准模型”中有着举足轻重的地位，基本粒子与希格斯场发生相互作用而获得质量。历时近半个世纪，该粒子于2012年由欧洲核子中心大型强子对撞机上的ATLAS与CMS实验发现，并直接促成2013年的诺贝尔物理学奖。后发现时代的研究重心是继续深入开展希格斯粒子性质测量以期揭示希格斯粒子更深层次的自然本性。ATLAS合作组于希格斯粒子发现十周年纪念日（2022.7.4）将该粒子的最...
在1960年代，物理学家Gell-Mann和Zweig独立提出了被称为夸克的亚原子粒子的存在。他们的模型成功地将拥有强相互作用的粒子 — 强子 — 描述为由两个或三个夸克组成。同时，理论家还预言了存在超过三个夸克的奇异强子，其性质与描述常规强子的夸克模型不同。
近日，欧洲核子研究中心（CERN）大型强子对撞机LHC上ATLAS和CMS实验在《自然》杂志上首次发布基于全部Run2数据的希格斯粒子的联合测量结果。这一结果是迄今为止希格斯粒子性质的最精确测量结果。
ATLAS and CMS release results of most comprehensive studies yet of Higgs boson’s properties（图）
ATLAS CMS 希格斯玻色子
2023/5/26
Today, exactly ten years after announcing the discovery of the Higgs boson, the international ATLAS and CMS collaborations at the Large Hadron Collider (LHC) report the results of their most comprehen...
Where is all the new physics? In the decade since the Higgs boson’s discovery, there have been no statistically significant hints of new particles in data from the Large Hadron Collider (LHC). Could t...
The top quark is very special. It’s the heaviest known elementary particle and therefore strongly interacts with the Higgs boson. The top quark’s interactions with other particles provide promising le...
High-energy collisions at the Large Hadron Collider (LHC) allow researchers to clearly study heavy Standard Model particles, like the Higgs boson, that decay almost immediately at the LHC collision po...
The Higgs boson lives for an extremely short time before it transforms, or “decays”, into other particles. It is through the detection of some of these decay products that the unique particle has firs...