The ATLAS Experiment at the CERN LHC

CERN LHC 的 ATLAS 实验

基本信息

批准号：
SAPPJ-2015-00030-11
负责人：
Vincter, Manuella
金额：
$ 41.96万
依托单位：
Carleton University
依托单位国家：
加拿大
项目类别：
Subatomic Physics Envelope - Project
财政年份：
2017
资助国家：
加拿大
起止时间：
2017-01-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=617877
关键词：
ATLAS Experiment CERN LHC

项目摘要

The CERN Large Hadron Collider (LHC) has the highest direct energy reach of any particle physics facility, and Canada's central role in the ATLAS collaboration at the LHC will keep us at the forefront of international particle physics. ATLAS and the LHC conducted our first major operational period, called Run 1, in 2011 and 2012, with proton-proton collision centre-of-mass energies of 7-8 TeV. With those data, ATLAS, together with the CMS collaboration, discovered the Higgs boson whose existence was predicted in 1964 and intensely sought over the intervening half century. The Higgs discovery was covered widely by International and Canadian media and led directly to the award of the 2013 Nobel prize in physics to Peter Higgs and Francois Englert. Studies of the properties of the newly observed Higgs particle have so far shown it to be consistent with the Standard Model Higgs, but the limited number of Higgs particles observed at the LHC restrict the sensitivity of the results. Canadians played leading roles in several of the analyses used to discover the Higgs boson and to measure its properties, including the current coordination of the ATLAS Higgs working group. The Higgs boson discovery was a remarkable achievement, but only scratches the surface of the potential physics reach of ATLAS and the LHC, which were designed from the outset to probe for signatures of new physics at the TeV scale that could "stabilize" the vacuum and address deficiencies of the Standard Model. Achieving the full potential of ATLAS requires more data at higher energies.

CERN 大型强子对撞机 (LHC) 拥有所有粒子物理设施中最高的直接能量范围，加拿大在 LHC 的 ATLAS 合作中发挥的核心作用将使我们保持在国际粒子物理学的前沿，ATLAS 和 LHC 进行了我们的第一个重大项目。 2011 年和 2012 年的运行期，称为运行 1，质子-质子碰撞质心能量为 7-8 TeV 根据这些数据，ATLAS，与 CMS 合作，发现了希格斯玻色子，该玻色子的存在在 1964 年就被预测出来，并在随后的半个世纪里受到了广泛的关注。希格斯玻色子的发现被国际和加拿大媒体广泛报道，并直接导致了 2013 年诺贝尔物理学奖的颁发。彼得·希格斯和弗朗索瓦·恩格勒特对新观察到的希格斯粒子的性质的研究迄今为止表明它与标准模型希格斯一致，但数量有限。在大型强子对撞机上观察到的希格斯粒子的数量限制了加拿大人在用于发现希格斯玻色子和测量其特性的多项分析中的主导作用，包括阿特拉斯希格斯玻色子工作组的当前协调。这是一项了不起的成就，但只触及了 ATLAS 和 LHC 潜在物理影响的表面，它们从一开始就被设计来探测 TeV 尺度的新物理特征，这些特征可以“稳定”真空并解决标准模型的缺陷。要充分发挥 ATLAS 的潜力，需要更高能量的更多数据。