A first measurement of the CKM quark mixing element Vcb at the weak scale using the ATLAS experiment

使用 ATLAS 实验首次测量弱尺度 CKM 夸克混合元素 Vcb

• 批准号: 1917441
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1917441
• 关键词: first; measurement; CKM; quark; mixing

The CKM quark mixing element Vcb has only been measured before at the energy scale ~2GeV available in B decays. In this PhD project, the student will contribute to the first pioneering measurement of this quantity at the weak scale using data from the ATLAS experiment at CERN. The project will begin with a feasibility study of such a measurement, comparing different approaches. It will continue by performing the first measurement using the method determined to be the best. In this way it may be possible to resolve the running of this quantity with energy scale, which would represent the first ever observation of the running of a CKM mixing element with energy scale.

CKM夸克混合元VcB以前只在B衰变的~2GeV能量尺度上测量过。在这个博士项目中，学生将使用欧洲核子研究中心的ATLAS实验数据，在弱尺度上首次对这个量进行开创性的测量。该项目将开始对这种衡量方法进行可行性研究，比较不同的方法。它将继续使用确定为最佳的方法进行第一次测量。以这种方式，可以解决该量与能量标度的运行，这将代表CKM混合元件与能量标度的运行的首次观察。

项目成果

A method to determine |Vcb| at the weak scale in top decays at the LHC

确定|Vcb|的方法

• DOI: 10.1007/jhep01(2019)191
• 发表时间: 2019
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Harrison P