Research at the Intensity Frontier with the LHCb Experiment

通过 LHCb 实验进行强度前沿研究

• 批准号: 1201974
• 负责人: Sheldon Stone
• 金额: $ 304万
• 依托单位: Syracuse University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-15 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1201974&HistoricalAwards=false
• 关键词: Research; Intensity; Frontier; LHCb; Experiment

The physics program at the Large Hadron Collider (LHC) at CERN, Geneva, Switzerland is in full operation, now delivering proton-proton collisions at 8 TeVcollision energy. The Syracuse group is a member of the LHCb experiment which is currently in an intense data-taking phase for 2012, and which will segue into an analysis and upgrade phase during the period 2013-2014. Afterward, operations will resume at 14 TeV collision energy. The LHCb experiment is designed to study beauty and charm decays at a hadron collider and the experiment and the Syracuse group are well-positioned to: (1) make direct measurements of the production and decay properties of these particles, and (2) simultaneously have sensitivity to new physics at high mass scales through the attendant effects of such physics on decay rates, CP violating asymmetries, or polarizations of certain vector states in the beauty and charm particle decays. Syracuse contributes significantly to the physics program including: measurement of the b-bbar production cross section, determination of b-hadron branching fractions, discovery of a new semileptonic decays of strange neutral B mesons, including first observation of CP Violation in the decay of the strange neutral B meson into a J/psi and f meson. The group is aggressively pursuing these analyses and measuring the CP violating angle gamma and lifetimes of strange neutral B mesons.In technical and service responsibility to LHCb, Syracuse participation has been very broad, with contributions to the Vertex Locator, Trigger, and Ring Imaging Cherenkov detector testing, and ongoing LHCb operations. The group is active in detector research and development with emphasis on new technologies for the upgraded vertex detector and responsibility for silicon based downstream tracking. The Syracuse group is active in the research and development of highly radiation resistant semiconductor detectors, capable of surviving the vigorous conditions expected at the High Luminosity LHC, and in the development of diamond tracking detectors. Throughout its research program, Syracuse has maintained an active interest in broadening participation. The group has recently joined QuarkNet and maintains an "Ask a Particle Physicist" website, so that teachers and other members of the community can interact informally with the group. And the group actively encourages and supports younger members of the research team to be actively engaged in the high school classroom.

瑞士日内瓦Cern的大型强子对撞机（LHC）的物理计划正在全部运行，现在在8 tevcollision Energy提供质子 - 普罗顿碰撞。 Syracuse组是LHCB实验的成员，该实验目前处于2012年的严格数据研究阶段，并将在2013 - 2014年期间进入分析和升级阶段。之后，操作将以14 TEV碰撞能量恢复。 LHCB实验旨在研究在强子对撞机上的美和魅力衰变，实验和锡拉丘兹组的位置充分，可以直接测量这些粒子的生产和衰减特性，以及（2）同时对某些物理学的差异或违反质量的差异，同时对新的物理学对新的物理效应，cp cp cp cp cp cp cp cp cp，cp spectors的新物理学，美丽和魅力粒子衰变。 锡拉丘兹（Syracuse）对物理学计划做出了重大贡献，包括：BBAR生产横截面的测量，确定B-Hadron分支分数的确定，发现新的半衰减型中性B Meson的新半衰减衰减，包括在奇怪的中性B Meson陷入J/PSI和F Meson中首次观察CP违规的CP违规。 该小组正在积极进行这些分析，并衡量违反角度伽玛的CP和奇怪的中性B介子的生命。在对LHCB的技术和服务责任中，锡拉丘兹的参与非常广泛，对Vertex定位器，触发器和戒指成像Cherenkov检测器测试，并进行了cherenkov tecters测试，并进行了LHCB的操作。 该小组活跃于探测器研究和开发中，重点是针对升级的顶点探测器的新技术，并负责基于硅的下游跟踪。 Syracuse组活跃于高度辐射抗性半导体探测器的研究和开发中，能够在高光度LHC和钻石跟踪探测器的开发中存活预期的剧烈条件。在整个研究计划中，锡拉丘兹一直对扩大参与感保持着积极的兴趣。该小组最近加入了Quarknet，并维护了一个“询问粒子物理学家”网站，以便教师和社区的其他成员可以与小组非正式地互动。 该小组积极鼓励并支持研究小组的年轻成员积极从事高中教室。