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F.O. Duraes, A.V. Giannini, V.P. Goncalves and F.S. Navarra
On the rapidity dependence of the average transverse momentum in hadronic collisions
Abstract
The energy and rapidity dependence of the average transverse momentum ⟨p_{T}⟩ in pp and pA collisions at RHIC and LHC energies are estimated using the Colour Glass Condensate (CGC) formalism. We update previous predictions for the p_{T} - 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 p_{T}≤20 GeV. Moreover, we present our predictions for ⟨p_{T}⟩ and demonstrate that the ratio ⟨p_{T}(y)⟩/⟨p_{T}(y=0)⟩ decreases with the rapidity and has a behaviour similar to that predicted by hydrodynamical calculations.
LU TP 15-49
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