From EMC- and Cronin-effects to signals of quark-gluon plasma

Abstract

The EMC- and Cronin-effects are explained by a unitarized evolution equation, where the shadowing and antishadowing corrections are dynamically produced by gluon fusions. For this sake, an alternative form of the GLR-MQ-ZRS equation is derived. The resulting integrated and unintegrated gluon distributions in proton and nuclei are used to analyze the contributions of the initial parton distributions to the nuclear suppression factor in heavy ion collisions. A simulation of the fractional energy loss is extracted from the RHIC and LHC data, where the contributions of the nuclear shadowing and antishadowing effects are considered. We find a rapid crossover from week energy loss to strong energy loss at a universal critical energy of gluon jet $E_c\sim 10GeV$.

35 pages, 13 figures, to be published in Int. J. Mod. Phys. E

References in corpus (5)

• Suppression of charged particle production at large transverse momentum in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Determination of fragmentation functions and their uncertainties
• Constraining the nuclear gluon distribution in $eA$ processes at RHIC
• Nuclear shadowing and prompt photons at relativistic hadron colliders
• Prediction for unintegrated parton distributions

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• Applications of a nonlinear evolution equation I: the parton distributions in the proton
• Small-x analysis on the effect of gluon recombinations inside hadrons in light of the GLR-MQ-ZRS equation
• Nonlinear corrections to the nuclear heavy flavor structure functions