The nucleon's transversity and the photon's distribution amplitude probed in lepton pair photoproduction
High Energy Physics - Phenomenology
2011-04-22 v1 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
Abstract
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.
Keywords
Cite
@article{arxiv.1011.0845,
title = {The nucleon's transversity and the photon's distribution amplitude probed in lepton pair photoproduction},
author = {B. Pire and L. Szymanowski},
journal= {arXiv preprint arXiv:1011.0845},
year = {2011}
}
Comments
4 pages, proceedings of the ICHEP conference, Paris july 2010