Study of spin structure of hadrons using polarized photons

利用偏振光子研究强子自旋结构

• 批准号: 0652549
• 负责人: Daniel Sober
• 金额: --
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0652549&HistoricalAwards=false
• 关键词: Study; spin; structure; hadrons; using

Our research during 2007-2010 will focus on polarization observables from photoproduction experiments using the CLAS detector system in Hall B of Jefferson Lab. As a leading institution in both the FROST program (using polarized photon beams and a frozen-spin target) and the HD-target program at CLAS (in collaboration with the polarized target group at BNL), we expect that run preparation, data taking, data calibration and reconstruction will be a large part of our effort during these years. In addition, ongoing analyses of omega electro- and photoproduction and K0 photoproduction will be completed. We will continue to perform essential service work for photon beam experiments in Hall B at Jefferson Lab, especially with regard to running the tagging hodoscope and the coherent bremsstrahlung facility. Moreover, our software support concerning charged particle tracking in CLAS continues to be crucial for any analysis of CLAS data.Toward the end of this period, our work for the GluEx experiment in the new Hall D at JLab will begin taking more of our time. Our responsibility to build the photon beam line equipment is shared with U. Connecticut and Glasgow U.; we continue our R&D efforts and expect construction of the tagging hodoscope to start in 2010. Through all of this work, we provide training and professional experience to graduate students and a postdoctoral research associate.

我们在2007-2010年间的研究将集中在使用杰斐逊实验室B厅的Clas探测器系统进行的光产生实验中的偏振可观测物。作为Frost计划(使用偏振光子束和冻结自旋目标)和CLAS HD目标计划(与BNL的极化目标小组合作)的领先机构，我们预计运行准备、数据获取、数据校准和重建将是这些年我们工作的一大部分。此外，还将完成对欧米茄电子和光产以及K0光产的持续分析。我们将继续为杰斐逊实验室B厅的光子束实验进行必要的服务工作，特别是在运行标记望远镜和相干韧致辐射设施方面。此外，我们在Clas中有关带电粒子跟踪的软件支持对于任何Clas数据的分析仍然至关重要。在这段时间结束后，我们在JLab新D厅的GluEx实验工作将开始占用我们更多的时间。我们与美国康涅狄格州和格拉斯哥大学共同承担着建造光子光束线设备的责任；我们将继续我们的研发工作，并预计标签望远镜的建造工作将于2010年开始。通过所有这些工作，我们为研究生和博士后研究助理提供培训和专业经验。