Timelike Compton Scattering in Ultraperipheral Collisions
High Energy Physics - Phenomenology
2009-06-30 v1
Abstract
Exclusive photoproduction of dileptons, gamma N ->l+l- N, is and will be measured in ultraperipheral collisions at hadron colliders. We demonstrate that the timelike deeply virtual Compton scattering (TCS) mechanism gamma q -> l+l- q, where the lepton pair comes from the subprocess gamma q -> gamma* q, dominates in some accessible kinematical regions, thus opening a new way to study generalized parton distributions (GPD) in the nucleon at small skewedness.
Keywords
Cite
@article{arxiv.0906.5256,
title = {Timelike Compton Scattering in Ultraperipheral Collisions},
author = {B. Pire and L. Szymanowski and J. Wagner},
journal= {arXiv preprint arXiv:0906.5256},
year = {2009}
}
Comments
To appear in the proceedings of DIS 2009 Conference, 26-30 April 2009, Madrid