Inclusive distributions in the unitarized pomeron models

Details Inclusive distributions in the unitarized pomeron models Inclusive distributions in the unitarized pomeron models

2009-11-24

arxiv.org/abs/0911.4698v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 11 figures

Scientific paper

High energy inclusive hadron production in the central kinematical region is analyzed within the models of unitarized pomeron. It is shown that the sum of multipomeron exchanges with intercept $\alpha_P(0)>1$ reproduce qualitatively contribution of the triple pole (at $t=0$) pomeron to inclusive cross section. Basing on this analogy we then suggest a general form of unitarized pomeron contributions (in particular the dipole or tripole pomeron) to inclusive cross section. They lead to a parabolic form of the rapidity distribution giving $\propto \ln^3s$ (tripole) or $\propto \ln^2s$ (dipole). The models considered with suggested parametrization of $p_t$-dependence for cross sections well describe the rapidity distributions data in $pp$ and $\bar pp$ interactions at energy $\sqrt{s}\geq 200$ GeV. The predictions for one particle inclusive production at LHC energies are given.

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