CEPC Conceptual Design Report: Volume 2 - Physics&Detector
CEPC Conceptual Design Report: Volume 2 - Physics&Detector
复制标题
DOI：
--
复制
发表时间：
2018-11
期刊：
影响因子：
--
通讯作者：
The Cepc Study Group
中科院分区：
文献类型：
--
作者：
The Cepc Study Group
圆形正电子对撞机（CEPC）是由中国粒子物理学界提出的大型国际科学设施，旨在探索希格斯玻色子，并为标准模型的潜在基本物理原理提供关键测试，这些原理可能会揭示新的物理学。CEPC将设在中国一个周长约100公里的圆形地下隧道中，被设计成一个希格斯工厂，产生质心能量为240 GeV的正负电子碰撞。对撞机也将运行在91.2 GeV左右，作为一个Z工厂，并在WW生产阈值（约160 GeV）。CEPC将产生近1万亿个Z玻色子，1亿个W玻色子和超过100万个希格斯玻色子。在Z玻色子衰变过程中产生的大量底夸克、粲夸克和τ轻子也使CEPC成为一个有效的b工厂和τ粲工厂。CEPC将有两个相互作用点，两个大型探测器将被放置在那里。本文件为CEPC概念设计报告（CDR）第二卷。介绍了CEPC的物理情况，描述了可能的探测器的概念设计及其技术选择，重点介绍了预期的探测器和物理性能，并讨论了探测器研发和物理研究的未来计划。最终的CEPC探测器将由国际合作提出并建造，但它们很可能由本文件中描述的概念设计中包含的探测器技术组成。最近发布的第1卷描述了CEPC加速器综合体的设计、相关的土木工程和战略替代方案。
The Circular Electron Positron Collider (CEPC) is a large international scientific facility proposed by the Chinese particle physics community to explore the Higgs boson and provide critical tests of the underlying fundamental physics principles of the Standard Model that might reveal new physics. The CEPC, to be hosted in China in a circular underground tunnel of approximately 100 km in circumference, is designed to operate as a Higgs factory producing electron-positron collisions with a center-of-mass energy of 240 GeV. The collider will also operate at around 91.2 GeV, as a Z factory, and at the WW production threshold (around 160 GeV). The CEPC will produce close to one trillion Z bosons, 100 million W bosons and over one million Higgs bosons. The vast amount of bottom quarks, charm quarks and tau-leptons produced in the decays of the Z bosons also makes the CEPC an effective B-factory and tau-charm factory. The CEPC will have two interaction points where two large detectors will be located. This document is the second volume of the CEPC Conceptual Design Report (CDR). It presents the physics case for the CEPC, describes conceptual designs of possible detectors and their technological options, highlights the expected detector and physics performance, and discusses future plans for detector R&D and physics investigations. The final CEPC detectors will be proposed and built by international collaborations but they are likely to be composed of the detector technologies included in the conceptual designs described in this document. A separate volume, Volume I, recently released, describes the design of the CEPC accelerator complex, its associated civil engineering, and strategic alternative scenarios.