Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-10-10
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 1 figure, to be published in the Proceedings of the Low x Workshop, Santiago de Compostela, Spain, 2-7 June 2011
Scientific paper
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.
Khoze Valery A.
Martin A. D.
Ryskin M. G.
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