Study of Heavy Quark Physics with the BaBar Detector

用 BaBar 探测器研究重夸克物理

• 批准号: 0099505
• 负责人: Patricia Burchat
• 金额: $ 87.32万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0099505&HistoricalAwards=false
• 关键词: Study; Heavy; Quark; Physics; BaBar

This proposal requests support for the research program in experimental particle physics of a Stanford University group whose primary goal is the elucidation of the source of CP violation through the study of the decay of mesons containing the bottom quark. The program will be carried out with the BaBar detector and PEP-II storage ring at the Stanford Linear Accelerator Center (SLAC). Within the BaBar collaboration, this group has been responsible for all detector monitoring and control hardware for the Silicon Vertex Tracker (SVT), and for the SVT data acquisition software. In the period of this request, the group intends to maintain the SVT systems they designed, built and commissioned: a radiation monitoring and beam interlock system based on PIN diodes near the beam pipe, a position-monitoring system for the SVT and drift chamber, a temperature monitoring and power supply interlock system for the SVT readout electronics, and a gas and fluid monitoring system for the SVT. The PI recently completed a one-year term as Physics Analysis Coordinator (PAC), preceded by a term as Deputy PAC. During her term as PAC, the BaBar collaboration presented its first preliminary results on the CP-violating phase, b, the B lifetimes, the B0 B0-bar mixing rate, radiative Penguin decays, charmless hadronic B decays, and other analyses at the International Conference on High Energy Physics in Osaka, Japan. The Stanford group contributed to various aspects of the lifetime, mixing, and CP analyses. The focus of this group will be on continued analysis of BaBar data, concentrating on B lifetimes and mixing, rare decays such as B+ - t+ nt and B+ - K+ n n-bar, and charm baryon physics.

该提案要求支持斯坦福大学小组的实验粒子物理学研究计划，其主要目标是通过研究包含底部夸克的介子的衰变来阐明CP违规的来源。 该程序将在斯坦福线性加速器中心（SLAC）的Babar探测器和PEP-II存储环进行。 在巴巴尔合作中，该小组负责硅顶点跟踪器（SVT）和SVT数据采集软件的所有检测器监视和控制硬件。 在此请求期间，该小组打算维护他们设计，构建和委托的SVT系统：基于Beam Pipe附近的PIN二极管，SVT和漂移室的位置监控系统，温度监控和电源互锁系统的SVT读取电子设备，气体和流体监控系统的辐射监控和横梁互锁系统。 PI最近完成了为期一年的物理分析协调员（PAC），此前为副PAC。 在担任PAC期间，Babar合作在CP竞争阶段，B，B寿命，B0 B0 B0-BAR混合率，辐射企鹅衰减，无魅力的Hadronic B衰变以及其他分析在日本大陆的国际高能物理学上进行了其他分析。 斯坦福集团为一生，混合和CP分析的各个方面做出了贡献。 该组的重点将放在对Babar数据的持续分析，集中在B寿命和混合上，罕见的衰减，例如B+ -T+ NT和B+ -K+ N N Bar和Charm Baryon Physics。