Nonforward Compton scattering in AdS/CFT correspondence
Abstract
We study the nonforward Compton scattering in particular the deeply virtual Compton scattering from AdS/CFT. We first calculate the contributions from the s-channel and u-channel supergravity diagrams as well as the four point interaction diagram which correspond to the Compton scatterings on a dilaton target in CFT. Furthermore, we study the Compton scattering on a dilatino target. Assuming that protons can be identified as supergravity modes of dilatino, we compare the calculated DVCS cross section to the low-energy experimental data from the H1 and ZEUS collaborations and find good agreement. We also discuss the t-channel graviton exchange contribution and show that it should be dominant in the high-energy limit.
Cite
@article{arxiv.0912.4333,
title = {Nonforward Compton scattering in AdS/CFT correspondence},
author = {Jian-Hua Gao and Bo-Wen Xiao},
journal= {arXiv preprint arXiv:0912.4333},
year = {2010}
}
Comments
36 pages, 6 figures, some factors corrected, conclusion not changed