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

这项建议要求支持继续研究NA48/1(CERN)的高强度K短/中性超子数据，参加CLEO-c(CESR)计划，并开始参与MECO(BNL)实验。NA48/1是寻找单粒子灵敏度约为3×10~(-10)的稀有K短和中性超子衰变。它的主要目标包括测量k0到p0e(M)e(M)-以及级联超子、半轻子和弱辐射衰变。Cleo-c希望在Psi共振、4140 MeV的质心能量(高于DSDS阈值)和J/Psi下收集数据，产生150万DSDS对、3000万DD对和10亿J/Psi的样本。对于罕见的D衰退搜索，这些数据将提供比粒子数据组值高2-3个数量级的典型灵敏度。PI计划研究D介子的变味中性电流衰变和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就特别支持任务展开合作。MECO打算用一种新设计的探测器和创新的方法来产生高纯度、动量和电荷选择的Muon束，将Muon到电子转换的分支比设置为10-16的限制。MECO的目标是在本十年的后五年收集数据，国际数学教育协会可能会与威廉与玛丽学院的同事合作，建立宇宙介子否决权系统。国际数学教育协会将继续努力招募未被充分代表的人群进入数学科学领域，他将加入正在进行的努力，在所有小学级别发展科学和数学教育学的教师培训计划。

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.