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)的对撞机探测器使研究最高能量的质子-反质子碰撞成为可能，质心能量接近2TeV。CDF的合作由来自15个国家的科学家组成，其中包括隶属于粒子物理研究所(IPP)的一群加拿大物理学家。IPP小组在1991年加入了CDF，在Run I数据收集期间，顶夸克的发现是它的亮点。在Run II中，Fermilab Tevatron对撞机和CDF设备的性能一直很高，峰值亮度超过3E32/cm^2/S，数据获取效率接近90%，使我们到目前为止能够收集和处理超过4fb的数据。目前的Tevatron运行预计将在2010年结束，预计集成光度几乎是目前处理的两倍。IPP-加拿大小组目前正在领导或从事以下方面的研究：b喷注产生、b强子碎裂、单顶夸克产生、寻找奇异的W‘和Z’玻色子、精确测量W玻色子的质量、寻找低质量标准希格斯玻色子，以及从光产生的夸克尼亚或双光子QED相互作用中独有的终态。这一大范围的主题的结果既是独特的，也是对欧洲核子研究中心大型强子对撞机(LHC)的ATLAS实验所能取得的成果的补充。随着大型强子对撞机目前的投入使用，加拿大对CDF的总体参与已经减少，因为科学资源自然被重新定向到加拿大ATLAS的大型努力。目前的提议是为四个加拿大机构的小组提供业务支持，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，因此能够以补充不断加强的大型强子对撞机工作的方式，完成NSERC对CDF II实验及其物理学的投资的资本化。这将允许我们的研究生和研究人员履行他们对CDF的服务义务，直到终止数据获取，并在探索Tevatron计划历史上一些最令人兴奋的物理时完成几个遗留物理分析。