From hard to soft high-energy pp interactions

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.

7 pages, 1 figure, to be published in the Proceedings of the Low x Workshop, Santiago de Compostela, Spain, 2-7 June 2011

References in corpus (1)

• First measurement of the total proton-proton cross section at the LHC energy of {\surd} s =7 TeV

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• First Results of a Detailed Analysis of p+p Elastic Scattering Data from ISR to LHC Energies in the Quark-Diquark Model