STAR Forward Pion Detector Fabrication

这项探索性研究拨款将为布鲁克海文国家实验室相对论重离子对撞机(RHIC)的恒星探测器中安装前向pion探测器(FPD)的部件的制造提供支持，预计2003年将进行实验运行。用横向极化的质子束测量中性介子的产生，可以为我们提供关于质子中胶子分布的知识。用简单的探测器进行的初步运行产生了激励当前设计的结果，而RHIC狭窄的设备安装窗口对该项目造成了时间上的紧迫性。

This Exploratory Grant for Exploratory Research will provide supportfor the fabrication of components of a forward pion detector (FPD)to be installed in the STAR detector at the Relativistic Heavy IonCollider (RHIC) at Brookhaven National Laboratory in anticipation ofthe 2003 experimental run. Measurement of neutral pion productionby transversely polarized proton beams can provide to our knowledgeof the gluon distribution in the proton. Preliminary runs withsimple detectors have produced results which motivate the presentdesign, and narrow equipment installation windows at RHIC havecontributed a time urgency to this project.