The Compact Linear Collider (CLIC) - 2018 Summary Report
The Compact Linear Collider (CLIC) - 2018 Summary Report
复制标题
DOI：
10.23731/cyrm-2018-002
复制
发表时间：
2018-12
期刊：
影响因子：
--
通讯作者：
The Clic;CLICdp collaborations T.K. Charles;P. Giansiracusa;T. Lucas;R. Rassool;M. Volpi;C. Balázs-C.-Balá
中科院分区：
文献类型：
--
作者：
The Clic;CLICdp collaborations T.K. Charles;P. Giansiracusa;T. Lucas;R. Rassool;M. Volpi;C. Balázs-C.-Balá
紧凑型直线对撞机（CLIC）是欧洲核子研究中心（CERN）正在研发的一种太电子伏特量级高亮度直线正负电子对撞机。继2012年发布CLIC概念设计之后，本报告概述了CLIC项目、其当前状态以及未来发展。报告阐述了CLIC的物理潜力，并介绍了加速器和探测器在设计、技术以及实施方面的情况。为了最佳地利用其物理潜力，预计CLIC将分阶段建造和运行，质心能量分别为380 GeV、1.5 TeV和3 TeV，场地长度从11千米到50千米不等。CLIC采用双束加速方案，其中正常导电的高梯度12 GHz加速结构通过大电流驱动束提供能量。对于第一阶段，也考虑了一种使用X波段速调管供电的替代方案。近年来，CLIC加速器的优化、技术发展和系统测试取得了重大进展。此外，这使得380 GeV阶段的能源效率提高（功率约为170兆瓦），同时成本估算降低至60亿瑞士法郎。探测器概念符合物理性能要求和CLIC实验条件，通过改进的模拟和重建软件工具得到了完善。在跟踪和量热系统的探测器技术开发方面取得了重大进展。已经开展了广泛的CLIC物理研究，既通过带有束流诱导本底叠加的全探测器模拟，也通过参数研究，共同提供了CLIC物理潜力的广泛概述。三个能量阶段中的每一个都为完整的CLIC物理计划增添了基石，例如希格斯粒子的宽度和耦合、顶夸克的性质、希格斯粒子的自耦合、直接搜索以及许多精确的电弱测量。综合结果的解读为新物理提供了关键而准确的见解，在很大程度上与大型强子对撞机（LHC）和高亮度大型强子对撞机（HL - LHC）互补。第一个CLIC能量阶段的建设可能于2026年开始。2035年将获得首束粒子束，标志着一个为期25 - 30年的广泛CLIC物理计划的开始。
The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear $e^+e^−$ collider under development at CERN. Following the CLIC conceptual design published in 2012, this report provides an overview of the CLIC project, its current status, and future developments. It presents the CLIC physics potential and reports on design, technology, and implementation aspects of the accelerator and the detector. For an optimal exploitation of its physics potential, CLIC is foreseen to be built and operated in stages, at centre-of-mass energies of 380 GeV, 1.5 TeV and 3 TeV, respectively, for a site length ranging from 11 km to 50 km. CLIC uses a two-beam acceleration scheme, in which normal-conducting high-gradient 12 GHz accelerating structures are powered via a high-current drive beam. For the first stage, an alternative with X-band klystron powering is also considered. CLIC accelerator optimisation, technical developments and system tests have resulted in significant progress in recent years. Moreover, this has led to an increased energy efficiency (power around 170 MW) for the 380 GeV stage, together with a reduced cost estimate at the level of 6 billion CHF. The detector concept, which matches the physics performance requirements and the CLIC experimental conditions, has been refined using improved software tools for simulation and reconstruction. Significant progress has been made on detector technology developments for the tracking and calorimetry systems. A wide range of CLIC physics studies has been conducted, both through full detector simulations with overlay of beam-induced backgrounds, and through parametric studies, together providing a broad overview of the CLIC physics potential. Each of the three energy stages adds cornerstones of the full CLIC physics programme, such as Higgs width and couplings, top-quark properties, Higgs self-coupling, direct searches, and many precision electroweak measurements. The interpretation of the combined results gives crucial and accurate insight into new physics, largely complementary to LHC and HL-LHC. The construction of the first CLIC energy stage could start by 2026. First beams would be available by 2035, marking the beginning of a broad CLIC physics programme spanning 25–30 years.