搜索结果: 1-15 共查到“高能物理学 LHC”相关记录63条 . 查询时间(0.199 秒)
Accelerator Report: Overcoming setbacks, antiprotons return as LHC recovers luminescent brilliance（图）
加速器 反质子 强子对撞机
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2023/6/12
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...
LHC experiments see first evidence of a rare Higgs boson decay（图）
大型强子对撞机 希格斯玻色子 衰变证据
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2023/5/29
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...
Accelerator Report: Full house in the LHC（图）
加速器 大型强子对撞机 Full house
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2023/5/29
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.
Accelerator Report: Crescendo at the LHC following the first stable beams at 6.8 TeV（图）
加速器 6.8 TeV 稳定光束 大型强子对撞机
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2023/5/25
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 ...
HiLumi News: Recovery of an HL-LHC niobium–tin magnet（图）
HL-LHC 铌锡磁铁 加速器
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2023/5/25
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...
New LHC experiments enter uncharted territory（图）
大型强子对撞机 中微子 FASER
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2023/5/26
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...
Cool kickers for the HL-LHC（图）
HL-大型强子对撞机 MKI-Cool Cool kickers
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2023/5/26
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...
ATLAS delivers most precise luminosity measurement at the LHC（图）
ATLAS 大型强子对撞机 亮度测量
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2023/5/26
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 in the HL-LHC era（图）
HL-大型强子对撞机 SM18测试设施 高能物理学
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2023/5/26
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...
HL-LHC magnet endurance test further confirms niobium–tin’s resilience（图）
HL-大型强子对撞机 耐久性测试 铌锡磁铁 弹性
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2023/5/26
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...
Autopsy of an LHC beam dump（图）
大型强子对撞机 光束倾倒 Autopsy
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2023/5/26
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...
The four LHC experiments are getting ready for pilot beams（图）
大型强子对撞机 导射束 欧洲核子研究中心
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2023/5/30
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...
北京大学物理学院宋慧超及合作者在LHC能区p-Pb碰撞小系统QGP信号研究方向取得重要进展（图）
北京大学物理学院 宋慧超 LHC能区 p-Pb碰撞小系统 QGP信号
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2020/9/9
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...
LHC或首次造出顶夸克“四胞胎”——有望揭示新的物理学理论
LHC 顶夸克 四胞胎 物理学理论
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2020/6/17
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。