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arXiv · 0912.4333

Nonforward Compton scattering in AdS/CFT correspondence

Jian-Hua Gao·Bo-Wen Xiao
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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.

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Jian-Hua Gao, Bo-Wen Xiao. 2009-12-22. Nonforward Compton scattering in AdS/CFT correspondence. https://doi.org/10.1103/physrevd.81.035008

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