Study of spin structure of hadrons using polarized photons

我们在2007-2010年期间的研究将集中于利用杰斐逊实验室B厅的CLAS探测器系统进行的光生产实验的偏振观测。作为FROST项目（使用偏振光子束和冷冻自旋靶）和CLAS的hd靶项目（与BNL的偏振靶组合作）的领先机构，我们预计在这些年中，运行准备、数据采集、数据校准和重建将是我们工作的重要组成部分。此外，将完成正在进行的omega光电生产和K0光电生产的分析。我们将继续为杰斐逊实验室B厅的光子束流实验提供必要的服务工作，特别是运行标记hodoscope和相干轫致辐射设备。此外，我们关于CLAS中带电粒子跟踪的软件支持对于CLAS数据的任何分析都至关重要。在这一阶段结束时，我们在JLab的新D厅进行的GluEx实验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建造光子束线设备的责任。我们将继续进行研发工作，并预计在2010年开始建造标签hodoscope。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。

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.