Does the Cronin Peak Disappear at LHC Energies?

Details Does the Cronin Peak Disappear at LHC Energies? Does the Cronin Peak Disappear at LHC Energies?

2007-03-06

arxiv.org/abs/hep-ph/0703059v1

Int.J.Mod.Phys.E16:1923-1929,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 Pages, 4 figure, Contribution to the Quark Matter 2006

Scientific paper

10.1142/S0218301307007234

In this work we compare the nuclear modification factors in proton (deuteron) -- nucleus collisions at CERN SPS, FNAL and RHIC energies in a wide p_T range. In these experiments the nuclear modification factor has shown an enhancement at p_T ~ 4 GeV/c. The height of this "Cronin peak" depends on the c.m. energy of the collision, as it is subject to stronger shadowing at higher energies. One of the aims of this contribution is to analyze the shadowing phenomenon at lower (2 GeV/c < p_T < 4 GeV/c) and intermediate (4 GeV/c < p_T < 8 GeV/c) transverse momentum. Different shadowing parameterizations are considered and the obtained Cronin peaks are investigated at RHIC and LHC energies.

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