Rare Decay Studies with NA48/1, CLEO-c, and MECO

使用 NA48/1、CLEO-c 和 MECO 进行稀有衰变研究

• 批准号: 0338597
• 负责人: Philip Rubin
• 金额: $ 14.4万
• 依托单位: George Mason 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: 2004-07-15 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0338597&HistoricalAwards=false
• 关键词: Rare; Decay; Studies; NA48; CLEO

This proposal requests support to continue research on the high intensity K-short/neutral-hyperon data of NA48/1 (CERN), to participate in the CLEO-c (CESR) program, and to commence involvement with the MECO (BNL) experiment. NA48/1 is a search for rare K-short and neutral hyperon decays with a single-event sensitivity of about 3 x10-10. Its primary objectives include measurements of K0S to p0e(m)+e(m)- and cascade hyperon semi-leptonic and weak radiative decays. CLEO-c expects to collect data at the Psi'' resonance, at a center-of-mass energy of 4140 MeV (above the DsDs threshold) and at the J/Psi , yielding samples of 1.5 million DsDs pairs, 30 million DD pairs, and one billion J/Psi. These data will provide a typical sensitivity, for rare D decay searches, of 2-3 orders of magnitude better than Particle Data Group values. The PI intends to investigate flavor-changing neutral-current decays of the D-meson and weak radiative decays of the Lc. CLEO-c formally commenced in Summer 2003 and the investigator will work with the software coordinator on special support tasks. MECO intends to set a limit of 10-16 on the branching ratio for muon to electron conversion with a newly designed detector and innovative method for producing a high purity, momentum- and charge-selected muon beam. MECO aims to take data during the second half of this decade, and the PI would likely collaborate with colleagues at the College of William & Mary on the construction of the cosmic muon veto system.The PI will continue his efforts to recruit underrepresented populations into the mathematical sciences and he will join an ongoing effort to develop teacher training programs for science and mathematics pedagogy at all grade-school levels.

该提案要求支持继续研究NA 48/1（CERN）的高强度K短/中性超子数据，参与CLEO-c（CESR）计划，并开始参与MECO（BNL）实验。 NA 48/1是一个寻找稀有K-短和中性超子衰变的项目，单粒子灵敏度约为3 × 10 -10。其主要目标包括测量K 0 S到p0 e（m）+e（m）-和级联超子半轻子和弱辐射衰变。CLEO-c预计将在Psi共振、质心能量为4140 MeV（高于DsDs阈值）和J/Psi处收集数据，产生150万DsDs对、3000万DD对和10亿J/Psi的样本。这些数据将为罕见的D衰变搜索提供比粒子数据组值好2-3个数量级的典型灵敏度。PI计划研究D介子的变味中性流衰变和Lc的弱辐射衰变。 CLEO-c于2003年夏季正式启动，调查员将与软件协调员合作执行特别支助任务。 MECO打算设定一个限制， 10-16关于利用新设计的探测器和用于产生高纯度、动量和电荷选择的μ子束的创新方法进行μ子到电子转换的分支比。 MECO的目标是在本十年的下半期收集数据，PI可能会与威廉玛丽学院的同事合作建造宇宙μ子否决系统。PI将继续努力招募未被充分代表的人口进入数学科学，他将加入一项正在进行的努力，为所有年级的科学和数学教学法制定教师培训计划。