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Inclusive distributions in the unitarized pomeron models

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 نشر من قبل Evgenij Martynov
 تاريخ النشر 2009
  مجال البحث
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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 $<n>propto ln^3s$ (tripole) or $<n>propto ln^2s$ (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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