Color Transparency and Light Cone Structure in QCD Bound States

这笔资金用于宾夕法尼亚州立大学的一个小组与美国国家科学基金会和能源部资助的其他科学家合作进行的实验初级粒子物理研究。该小组将继续在布鲁克海文国家实验室(BNL)测量QCD束缚态的颜色透明度和光锥结构。描述夸克和轻子相互作用的候选理论量子色动力学预测，质子在重原子核内从质子或中子的大角度散射应该经历相对于同一原子核中的其他核子的终态相互作用减少，即透明度。该小组将进一步制定计划，在BNL拟议的重离子对撞机上研究碰撞中的自旋转移相关问题。

This grant covers Experimental Elementary Particle Physics research by a group at the Pennsylvania State University in collaboration with other NSF and DOE supported scientists. The group will continue at the Brookhaven National Laboratory (BNL), its measurements of Color Transparency and Light Cone Structure in QCD Bound States. Quantum Chromodynamics, a candidate theory describing the interactions of quarks and leptons, predicts that protons scattering at large angles from a proton or neutron within a heavy nucleus should experience reduced final state interactions, i.e. transparency, with respect to the other nucleons in the same nucleus. The group further will develop plans to study related problems of spin transfer in collisions at the proposed heavy ion collider at BNL.