Dilepton low $p_T$ suppression as an evidence of the Color Glass Condensate

Details Dilepton low $p_T$ suppression as an evidence of the Color Glass Condensate Dilepton low $p_T$ suppression as an evidence of the Color Glass Condensate

2004-08-06

arxiv.org/abs/hep-ph/0408097v2

Phys.Rev.D70:116005,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 8 figures, replaced with the version to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.70.116005

The dilepton production is investigated in proton-nucleus collisions in the forward region using the Color Glass Condensate approach. The transverse momentum distribution ($p_T$), more precisely the low $p_T$ region, where the saturation effects are expected to increase, is analyzed. The ratio between proton-nucleus and proton-proton differential cross section for RHIC and LHC energies is evaluated, showing the effects of saturation at small $p_T$, and presenting a Cronin type peak at moderate $p_T$. These features indicate the dilepton as a most suitable probe to study the properties of the saturated regime and the Cronin effect.

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