Upgrading the ATLAS Experiment at the CERN LHC

欧洲核子研究中心大型强子对撞机（LHC）将拥有数十年来任何粒子物理设施的最高直接能量，加拿大在LHC的ATLAS合作中的核心作用将使我们保持在国际粒子物理学的最前沿。ATLAS已经宣布发现了一种与标准模型希格斯玻色子一致的新粒子，为我们理解质量和物质起源的新时代打开了大门。虽然LHC和ATLAS今年才完成我们的第一个延长物理运行期，但我们已经进入了升级LHC加速器和ATLAS探测器子系统的建设时代。为了扩大LHC物理计划的范围，计划增加对撞机的瞬时亮度。瞬时光度的增加将需要使用能够处理更高速率和辐射剂量的技术对探测器进行重大升级。该请求是为加拿大物理学家提供资金，以设计，建造和安装ATLAS升级第一阶段的基本升级，并完成长期改进所需的研发。

The CERN Large Hadron Collider (LHC) will have the highest direct energy reach of any particle physics facility for decades, and Canada's central role in the ATLAS collaboration at the LHC will keep us in the forefront of international particle physics. ATLAS has already announced the discovery of a new particle consistent with the Standard Model Higgs boson, opening the door to a new era in our understanding or the origin of mass and matter. While the LHC and ATLAS will only complete our first extended physics operational period this year, we are already entering the construction era for upgrading both the LHC accelerator and the ATLAS detector sub-systems. In order to extend the reach of the LHC physics program, it is intended to increase the instantaneous luminosity of the collider. The increase in instantaneous luminosity will require significant detector upgrades using technologies capable of handling the higher rates and radiation doses. This request is for funds for Canadian physicists to design, build and install essential upgrades for the first phase of ATLAS upgrades, and to complete R&D necessary for longer term improvements.