US-Pakistan Cooperative Research: Quantum Chromodynamical Investigations into Hadron Substructure

9820072JiDescription：该项目支持马里兰大学学院公园物理系纪向东博士和巴基斯坦伊斯兰堡Quaid-i-Azam大学物理系Pervez Hoodbhoy博士之间的合作。两人计划对强子亚结构和量子计时动力学(QCD)进行研究。他们将专注于QCD，这是强相互作用的基本理论，它决定了强子和原子核的结构和性质。具体地说，他们将研究五个特殊的主题：共形对称性和高能散射，轨道部分子运动和核子自旋结构，横向极化矢量介子的产生和夸克螺旋度-翻转-正向分布，QCD波美子，低x物理和衍射，以及量子计算。范围：这个项目是为了支持核子结构的一项潜在的重要研究，具有显著的间接教育效益。美国PI是一位世界级的专家，在这一领域做出了开创性的工作。胡德霍伊博士被认为是巴基斯坦这一领域的顶尖专家。他在麻省理工学院的联合工作中为这一领域的研究做出了贡献。该项目预计将产生重要的联合科学出版物。该建议符合支持互惠国际合作的国际目标。该项目由国际方案司和物理司共同资助。

9820072JiDescription: This project supports a collaboration between Dr. Xiangdong Ji, Department of Physics, University of Maryland, College park, Maryland and Dr. Pervez Hoodbhoy, Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan. The two plan to conduct investigations into hadron substructure and quantum chronodynamics (QCD). They will focus on QCD, the fundamental theory of strong interactions, which determines the structure and properties of hadrons and nuclei. Specifically they will investigate five particular topics: conformal symmetry and high energy scattering, orbital parton motion and nucleon spin structure, transversely-polarized vector meson production and quark helicity-flip off-forward distributions, and the QCD pomeron, low-x physics and diffraction, and quantum computing. Scope: This project is for support of a potentially important research in nucleon structure, with significant indirect educational benefits. The US PI is a world-class expert who has done pioneering work in this area. Dr. Hoodbhoy is considered the leading expert in Pakistan in this field. He has contributed to research in this area in joint work at the Massachusetts Institute of Technology. This project is expected to result in significant joint scientific publications. The proposal meets INT objective of supporting mutually beneficial international collaboration. This project is being funded jointly by the Division of International Programs and by the Physics Division.