Diffractive parton distributions from the analysis with higher twist
High Energy Physics - Phenomenology
2010-03-25 v3
Abstract
Diffractive parton distributions of the proton are determined from fits to diffractive data from HERA. In addition to the twist--2 contribution, the twist--4 contribution from longitudinally polarised virtual photons is considered, which is important in the region of small diffractive masses. A new prediction for the longitudinal diffractive structure function is presented which differs significantly from that obtained in the pure twist--2 analyses.
Cite
@article{arxiv.0704.1608,
title = {Diffractive parton distributions from the analysis with higher twist},
author = {K. Golec-Biernat and A. Luszczak},
journal= {arXiv preprint arXiv:0704.1608},
year = {2010}
}
Comments
24 pages, 12 figures, significant improvements, version to be published in Phys. Rev. D