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arXiv · 1309.7358

The rapidity dependence of the average transverse momentum in p+Pb collisions at the LHC: the Color Glass Condensate versus hydrodynamics

Piotr Bozek·Adam Bzdak·Vladimir Skokov
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Abstract

We show that in proton-lead (p+Pb) collisions at the LHC, the Color Glass Condensate (CGC) and hydrodynamics lead to qualitatively different behavior of the average transverse momentum, , with the particles rapidity. In hydrodynamics, the decreases as one goes from zero rapidity, y=0, to the proton fragmentation region since the number of particles decreases. In contrast, in the CGC the saturation momentum increases as one goes from y=0 to the proton fragmentation region, and so the increases. At the LHC, the difference between the two models may be large enough to be tested experimentally.

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Piotr Bozek, Adam Bzdak, Vladimir Skokov. 2013-09-27. The rapidity dependence of the average transverse momentum in p+Pb collisions at the LHC: the Color Glass Condensate versus hydrodynamics. https://doi.org/10.1016/j.physletb.2013.12.034

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