Hadron Collider Physics

这项名为“强子对撞机物理学”的拨款提案支持加州理工学院凯洛格辐射实验室的休斯小组的研究活动。 该计划旨在研究电弱物理和主要使用质子-质子碰撞束的强相互作用。 该方案有三个具体方向。 我们正在利用RHIC的星星探测器首次测量质子的极化胶子分布。预计胶子自旋对质子自旋的贡献是大的和正的。 星星胶子分布测定的第一个实质性结果应该在今年公布。其次，我们加入了欧洲核子研究中心的ATLAS实验。 我们的研究将集中在寻找新的粒子和新的相互作用。 我们特别感兴趣的是超对称性的第一次测试和潜在的重力修正在TeV尺度。 最后，我们正在启动一项长期的加速器物理研究和开发工作，为RHIC加速器生产偏振氦-3束。 该项目与高能中子自旋结构的未来研究以及在eRHIC上对Bjorken求和规则（QCD的基本预测）的未来测试有关

The grant proposal entitled Hadron Collider Physics supports the research activities of the Hughes group in the Kellogg Radiation Laboratory at Caltech. The program is directed at studies of electroweak physics and the strong interaction using primarily proton-proton colliding beams. The program has three specific directions. We are active in the first measurement of the polarized gluon distribution of the proton using the STAR detector at RHIC. The gluon spin contribution to the protons spin is expected to be large and positive. First substantive results on the gluon distribution determination from STAR should be released this year. Second, we have joined the ATLAS experiment at CERN. Our research will be focused on the search for new particles and new interactions. We are particularly interested in the first tests of SUSY and the potential modification of gravity at the TeV scale. Finally, we are initiating a long-term accelerator physics Research and Development effort to produce a polarized Helium-3 beam for the RHIC accelerator. This project is relevant to future studies of neutron spin structure at high energies and to a proposed future test of the Bjorken Sum Rule, a fundamental prediction from QCD, at eRHIC