论文标题
运动方位角不对称和lam-tung关系
Kinematic Azimuthal Asymmetries and Lam-Tung Relation
论文作者
论文摘要
分析了Drell-Yan Dilopton的角度不对称性的Lam-tung关系的起源。受此关系约束的不对称性属于运动学方位角不对称的类别,这是由于参考轴偏离自然物理物体而出现的。讨论了由于辐射和功率QCD校正而导致的LAM-TUNG关系的有效性和违反。当虚拟光子不是横向的情况下,该关系概括为建议使用可能的应用程序。
The origin of Lam-Tung relation for the angular asymmetry of Drell-Yan dileptons is analyzed. The asymmetry constrained by this relation is shown to belongto the class of kinematic azimuthal asymmetries, emerging due to the deviation of the reference axis from the natural physical one. The validity and violation of Lam-Tung relation due to radiative and power QCD corrections is discussed. The relation is generalized to the case when the virtual photon is not the transverse oneand the possible applications are suggested.