轻子对光生中核子的横截性和光子分布振幅的探讨
The nucleon's transversity and the photon's distribution amplitude probed in lepton pair photoproduction
摘要：
本文提出了一种利用横向极化靶上光生轻子对来计算质子中手征奇横向部分子分布的新方法。基本成分是贝特-海特勒或德雷尔-杨振幅与过程振幅的干涉，其中光子通过其扭转2手征奇分布振幅耦合到夸克。这种方法允许在实验上扫描核子中的横向分布的形状以及光子分布幅度。
英文摘要：
We describe a new way to access the chiral odd transversity parton distribution in the proton through the photoproduction of lepton pairs on transversely polarized target. The basic ingredient is the interference of the Bethe Heitler or Drell-Yan amplitudes with the amplitude of a process, where the photon couples to quarks through its twist-2 chiral-odd distribution amplitude. This approach permits to scan experimentally the shape of the transversity distribution in a nucleon as well as the photon distribution amplitude.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
