Abstract
We compute the energy and rapidity dependence of the average transverse momentum ⟨pT ⟩ in pp and pA collisions at RHIC and LHC energies in the framework of the Color Glass Condensate (CGC) formalism. We update previous predictions for the pT - spectra using the hybrid formalism of the CGC approach and two phenomenological models for the dipole – target scattering amplitude. We demonstrate that these models are able to describe the RHIC and LHC data for the hadron production in pp, dAu and pPb collisions at pT ≤⃒ 20 GeV. Moreover, we present our predictions for ⟨pT ⟩ and demonstrate that the ratio ⟨pT (y)⟩=⟨pT (y = 0)⟩ decreases with the rapidity and has a behavior similar to that predicted by hydrodynamical calculations.
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