On possible implications of gluon number fluctuations in DIS data
Abstract
We study the effect of gluon number fluctuations (Pomeron loops) on deep inelastic scattering (DIS) in the fixed coupling case. We find that the description of the DIS data is improved once gluon number fluctuations are included. Also the values of the parameters, like the saturation exponent and the diffussion coefficient, turn out reasonable and agree with values obtained from numerical simulations of toy models which take into account fluctuations. This outcome seems to indicate the evidence of geometric scaling violations, and a possible implication of gluon number fluctuations, in the DIS data. However, we cannot exclude the possibility that the scaling violations may also come from the diffusion part of the solution to the BK-equation, instead of gluon number fluctuations.
Cite
@article{arxiv.0707.4142,
title = {On possible implications of gluon number fluctuations in DIS data},
author = {Misha Kozlov and Arif Shoshi and Wenchang Xiang},
journal= {arXiv preprint arXiv:0707.4142},
year = {2009}
}
Comments
9 pages, 2 figures; references added, minor changes, matches published version