Stairway to discovery: A report on the CMS programme of cross section measurements from millibarns to femtobarns

IF 23.9 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
CMS Collaboration
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引用次数: 0

Abstract

The Large Hadron Collider at CERN, delivering proton–proton collisions at much higher energies and far higher luminosities than previous machines, has enabled a comprehensive programme of measurements of the standard model (SM) processes by the CMS experiment. These unprecedented capabilities facilitate precise measurements of the properties of a wide array of processes, the most fundamental being cross sections. The discovery of the Higgs boson and the measurement of its mass became the keystone of the SM. Knowledge of the mass of the Higgs boson allows precision comparisons of the predictions of the SM with the corresponding measurements. These measurements span the range from one of the most copious SM processes, the total inelastic cross section for proton–proton interactions, to the rarest ones, such as Higgs boson pair production. They cover the production of Higgs bosons, top quarks, single and multibosons, and hadronic jets. Associated parameters, such as coupling constants, are also measured. These cross section measurements can be pictured as a descending stairway, on which the lowest steps represent the rarest processes allowed by the SM, some never seen before.
通往发现的阶梯:关于从毫巴到飞巴截面测量的CMS程序的报告
欧洲核子研究中心(CERN)的大型强子对撞机(Large Hadron Collider)比以前的机器能够以更高的能量和更高的亮度进行质子-质子碰撞,从而使CMS实验能够对标准模型(SM)过程进行全面的测量。这些前所未有的能力有助于对一系列过程的属性进行精确测量,最基本的是横截面。希格斯玻色子的发现和对其质量的测量成为SM的基石。对希格斯玻色子质量的了解可以使SM的预测与相应的测量结果进行精确的比较。这些测量涵盖了从最丰富的SM过程之一,质子-质子相互作用的总非弹性横截面,到最罕见的过程,如希格斯玻色子对的产生。它们涵盖了希格斯玻色子、顶夸克、单玻色子和多玻色子以及强子射流的产生。相关参数,如耦合常数,也被测量。这些截面测量可以被描绘成一个下降的楼梯,其中最低的台阶代表了SM允许的最罕见的过程,有些是以前从未见过的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Physics Reports
Physics Reports 物理-物理:综合
CiteScore
56.10
自引率
0.70%
发文量
102
审稿时长
9.1 weeks
期刊介绍: Physics Reports keeps the active physicist up-to-date on developments in a wide range of topics by publishing timely reviews which are more extensive than just literature surveys but normally less than a full monograph. Each report deals with one specific subject and is generally published in a separate volume. These reviews are specialist in nature but contain enough introductory material to make the main points intelligible to a non-specialist. The reader will not only be able to distinguish important developments and trends in physics but will also find a sufficient number of references to the original literature.
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