The CDF II experiment

CDF II 实验

• 批准号: 109619-2009
• 负责人: Warburton, Andreas
• 金额: $ 9.47万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Group
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=421881
• 关键词: CDF; II; experiment

The Collider Detector at Fermilab (CDF) experiment is enabling the study of the highest energy proton-antiproton collisions at a centre-of-mass energy near 2 TeV. The CDF collaboration consists of scientists from 15 countries, including a group of Canadian physicists affiliated with the Institute of Particle Physics (IPP). The IPP group joined CDF in 1991 for the Run I datataking period, which had as its highlight the discovery of the top quark. In Run II, performance of the Fermilab Tevatron collider and CDF apparatus have been high with peak luminosities in excess of 3E32/cm^2/s and data-taking efficiencies near 90%, enabling us to collect and process over 4/fb of data to date. The current Tevatron run is envisaged to end in 2010, with a projected integrated luminosity nearly twice that processed so far. The IPP-Canada group is currently leading or engaged in studies of b-jet production, b-hadron fragmentation, single-top-quark production, searches for exotic W' and Z' bosons, precision measurements of the W boson mass, the search for the low-mass Standard Model Higgs boson, and exclusive final states from photo-produced quarkonia or two-photon QED interactions. Results from topics in this broad range are both unique and complementary to what can be achieved using the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. With the current commissioning of the LHC, overall Canadian involvement in CDF has been ramping down as scientific resources have naturally been redirected to the large Canadian ATLAS effort. The present proposal is for operating support of groups at four Canadian institutions consisting of researchers that joined the Canadian CDF II effort more recently (in 2003 and 2008) and are therefore well positioned to complete the capitalization of NSERC's investment in the CDF II experiment and its physics in a manner that is complementary to the intensifying LHC effort. This will allow our graduate students and researchers to meet their service obligations to CDF up to the termination of data taking and to complete several legacy physics analyses at a time when some of the most exciting physics in the history of the Tevatron program will be explored.

费米实验室 (CDF) 实验的对撞机探测器能够研究质心能量接近 2 TeV 的最高能量质子-反质子碰撞。 CDF 的合作由来自 15 个国家的科学家组成，其中包括一组隶属于粒子物理研究所 (IPP) 的加拿大物理学家。 IPP小组于1991年加入CDF进行Run I数据采集期，其亮点是顶夸克的发现。在运行 II 中，费米实验室 Tevatron 对撞机和 CDF 设备的性能很高，峰值光度超过 3E32/cm^2/s，数据采集效率接近 90%，使我们迄今为止能够收集和处理超过 4/fb 的数据。目前的 Tevatron 运行预计将于 2010 年结束，预计集成光度几乎是迄今为止运行的两倍。 IPP-加拿大小组目前正在领导或参与 b 射流产生、b 强子碎裂、单顶夸克产生、寻找外来 W' 和 Z' 玻色子、精确测量 W 玻色子质量、寻找低质量标准模型希格斯玻色子以及来自光产生夸克或双光子 QED 相互作用的独特最终状态的研究。这一广泛主题的结果既独特又与欧洲核子研究中心大型强子对撞机 (LHC) 的 ATLAS 实验所取得的成果相辅相成。 随着大型强子对撞机目前的投入使用，加拿大对 CDF 的整体参与已经逐渐减少，因为科学资源自然被转移到加拿大大型 ATLAS 项目上。目前的提案是为四个加拿大机构的小组提供运营支持，这些小组由最近（2003年和2008年）加入加拿大CDF II工作的研究人员组成，因此能够以与加强LHC工作相补充的方式完成NSERC对CDF II实验及其物理学的投资的资本化。这将使我们的研究生和研究人员能够履行他们对 CDF 的服务义务，直至数据采集终止，并在探索 Tevatron 计划历史上一些最令人兴奋的物理现象时完成多项遗留物理分析。