Rapidity gap survival in the black-disk regime
Abstract
We summarize how the approach to the black-disk regime (BDR) of strong interactions at TeV energies influences rapidity gap survival in exclusive hard diffraction pp -> p + H + p (H = dijet, Qbar-Q, Higgs). Employing a recently developed partonic description of such processes, we discuss (a) the suppression of diffraction at small impact parameters by soft spectator interactions in the BDR; (b) further suppression by inelastic interactions of hard spectator partons in the BDR; (c) correlations between hard and soft interactions. Hard spectator interactions substantially reduce the rapidity gap survival probability at LHC energies compared to previously reported estimates.
Cite
@article{arxiv.0708.3106,
title = {Rapidity gap survival in the black-disk regime},
author = {L. Frankfurt and C. E. Hyde and M. Strikman and C. Weiss},
journal= {arXiv preprint arXiv:0708.3106},
year = {2007}
}
Comments
4 pages, 3 figures. Proceedings of XV International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2007), Munich, Germany, Apr. 16-20, 2007