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The Accelerator Report published on 10 May highlighted that the 2023 antiproton physics run was delayed by 50 days (reducing the run to 122 days instead of the 172 initially scheduled) due to a broken...
The discovery of the Higgs boson at CERN’s Large Hadron Collider (LHC) in 2012 marked a significant milestone in particle physics. Since then, the ATLAS and CMS collaborations have been diligently inv...
On 11 May, four days before the original schedule had set a target of 1200 bunches per beam, the LHC made its final intensity ramp-up step to 2400 bunches per beam.
Late in the afternoon of Friday, 21 April, another important milestone was achieved in the LHC beam commissioning. At 6.58 p.m., one day ahead of schedule, the LHC Engineer in Charge declared “stable ...
CERN and the US Accelerator Upgrade Project (AUP, a consortium of various US institutions including Fermilab, BNL and LBNL laboratories based at Fermilab) are working in tandem to develop, build and t...
Although neutrinos are produced abundantly in collisions at the Large Hadron Collider (LHC), until now no neutrinos produced in such a way had been detected. Within just nine months of the start of LH...
Much of the research and development work for the High-Luminosity LHC (HL-LHC) aims to protect the accelerator’s fragile components from the detrimental effects of high luminosity, such as radiation a...
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 ...
The SM18 test facility, located in France, near the Meyrin site, was originally built to test and validate the magnets and radiofrequency (RF) cavities of LEP (the Large Electron–Positron Collider). I...
Future accelerator projects, including the high-luminosity upgrade of the Large Hadron Collider, will rely on niobium–tin (Nb3Sn) alloys for their superconducting components, such as electromagnets. T...
During LS2, the LHC’s two external beam dumps were removed from the tunnel and replaced with spare ones. After ten years of operation, they were showing signs of degradation, notably nitrogen leaks. B...
Update: The first pilot beams circulated in the LHC on 19 October 2021. On 26 October, there were low-intensity test collisions at an injection energy of 450 GeV per beam and stable collisions of prot...
夸克胶子等离子体(QGP)是强相互作用物质的解禁闭相,它曾经存在于早期的宇宙,也有可能存在于中子星内部。高能核核碰撞可以在瞬间产生QGP所需要的极端条件,揭示高温高密下强相互作用物质的相变和性质,并帮助人们近一步认识宇宙极早期的演化。在传统的相对论重离子碰撞中(例如200 A GeV的Au-Au碰撞),强耦合的夸克胶子等离子体QGP已经产生并被发现,其存在的三个重要的证据为:强的集体流,椭圆流的价...
据美国趣味科学网站近日报道,科学家表示,世界上最大的原子对撞机——大型强子对撞机(LHC)或许已经首次制造出顶夸克“四胞胎”,如获证实,有望揭示新的物理学理论。粒子物理学标准模型允许顶夸克“四胞胎”的存在,但新物理学理论预测,它们被LHC制造出来的概率可能远高于标准模型的预言,而找到更多此类“四胞胎”是检验这些新理论的第一步。
2018年12月20日至12月22日,适逢我校粒子物理研究所成立40周年之际, “第四届中国LHC物理工作会议”在我校举行。来自中国科学院高能物理研究所、中科院理论物理研究所、原子能科学研究院、清华大学、北京大学、中国科学技术大学、中国科学院大学、上海交通大学、复旦大学、南京大学、南开大学、武汉大学、山东大学、中山大学、华中师范大学、华南师范大学等三十多个高等学校和科研院所的三百多名专家学者齐聚一...

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