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

M. A. Betemps·M. B. Gay Ducati
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Abstract

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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M. A. Betemps, M. B. Gay Ducati. 2004-12-09. Dilepton low $p_T$ suppression as an evidence of the Color Glass Condensate. https://doi.org/10.1103/physrevd.70.116005

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