Deep inelastic structure functions from supergravity at small x
Abstract
Deep inelastic structure functions can be calculated from supergravity when the Bjorken parameter satisfies . We consider a gauge theory with very large 't Hooft coupling in order to investigate the region . In this case the center of mass energy is large enough to increase the number of hadronic constituents of the final state. We calculate the structure functions in terms of the number of final hadronic constituents. At small we find a scaling law similar to geometric scaling but with and .
Cite
@article{arxiv.0712.3530,
title = {Deep inelastic structure functions from supergravity at small x},
author = {C. A. Ballon Bayona and Henrique Boschi-Filho and Nelson R. F. Braga},
journal= {arXiv preprint arXiv:0712.3530},
year = {2008}
}
Comments
In V1 we assumed the transversality of the 4-d hadronic tensor but considered a non conserved 5-d current that spoils this property. In this V2 we define a modified conserved 5-d current that solves this problem and preserves our previous results for the structure functions. We also clarify the meaning of our final hadronic state. 14 pgs., 1 latex fig