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From hard to soft high-energy pp interactions (1110.1973v1)
Published 10 Oct 2011 in hep-ph
Abstract: We discuss how the main features of high-energy soft' andsemihard' 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.