Study of Heavy Quark Physics with the BaBar Detector

用 BaBar 探测器研究重夸克物理

• 批准号: 0354874
• 负责人: Patricia Burchat
• 金额: $ 90万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0354874&HistoricalAwards=false
• 关键词: Study; Heavy; Quark; Physics; BaBar

This proposal requests funds to support experimental studies of heavy quark physics with the BaBar Collaboration at the Stanford Linear Accelerator Center (SLAC). This research program in experimental particle physics centers on a primary physics goal of elucidating the source of CP violation (matter-anti-matter asymmetry) through the study of the decay of mesons containing the bottom quark. A secondary physics goal is to probe aspects of the strong interaction force by making precise studies of baryons containing the charm quark of hadronic decays of the B-meson. Such studies are challenging both theoretically, since they are difficult to calculate from first principles using the standard theory (Quantum ChromoDynamics or QCD); and experimentally, since they occur with very small probability. The Stanford group will also conduct an R&D program on chemical vapor deposition (CVD) diamond sensors for use in radiation monitoring and single-particle detection in high-radiation environments. This program will be carried out with the BaBar detector and the PEP-II storage ring as well as other facilities at SLAC.

该提案要求资金支持在斯坦福大学线性加速器中心（SLAC）与BaBar合作进行的重夸克物理实验研究。这个实验粒子物理学的研究项目集中在一个主要的物理目标上，即通过研究含有底夸克的介子的衰变来阐明CP破坏（物质-反物质不对称性）的来源。第二个物理学目标是通过精确研究包含B介子强子衰变的粲夸克的重子来探索强相互作用力的各个方面。这些研究在理论上是具有挑战性的，因为它们很难使用标准理论（量子色动学或QCD）从第一原理计算;在实验上，因为它们发生的概率很小。斯坦福大学的研究小组还将开展一项化学气相沉积（CVD）金刚石传感器的研发计划，用于高辐射环境中的辐射监测和单粒子探测。该计划将使用BaBar探测器和PEP-II储存环以及SLAC的其他设施进行。