arXiv:1110.1973·v1·High Energy Physics — Phenomenology
From hard to soft high-energy pp interactions
A.D. Martin🇬🇧 · M.G. Ryskin🇬🇧 · V.A. Khoze🇬🇧
Abstract
We discuss how the main features of high-energy `soft' and `semihard' pp collisions may be described in terms of parton cascades and multi-Pomeron exchange. The interaction between Pomerons produces an effective infrared cutoff, k_sat, by the absorption of low k_t partons. This provides the possibility of extending the parton approach, used for `hard' processes, to also describe high-energy soft and semihard interactions. We outline a model which incorporates these features. Finally, we discuss what the most recent LHC measurements in the soft domain imply for the model.
Comments: 7 pages, 1 figure, to be published in the Proceedings of the Low x Workshop, Santiago de Compostela, Spain, 2-7 June 2011