Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-04-22
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, 5 figures
Scientific paper
In this paper, we numerically study the forward correlations between the lepton-pair and associated hadrons in Drell-Yan process in pA collisions. Using the present knowledge of the dipole gluon distribution from the modified Golec-Biernat-W\"usthoff model and from the solution of the Balitsky-Kovchegov evolution equation, we are able to compute and predict the forward correlations between the lepton-pair and associated hadron in Drell-Yan process at RHIC and LHC. Similar to the forward dihadron correlation in dAu collisions measured at RHIC, the Drell-Yan type correlation also implies a strong suppression of the away side hadron at forward rapidity due to the strong interaction between the forward quark from the projectile proton and the gluon density from the target nucleus. Another feature of this process is that the correlation contains a double-peak structure in the away side, which makes it a unique observable.
Stasto Anna
Xiao Bo-Wen
Zaslavsky David
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