Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-04-18
Phys.Rev.D83:114023,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 7 figures
Scientific paper
10.1103/PhysRevD.83.114023
We present a study of the Drell-Yan process in pion-proton collisions including next-to-leading-logarithmic threshold-resummed contributions. We analyze rapidity-integrated as well as rapidity-differential cross sections in the kinematic regime relevant for the COMPASS fixed target experiment. We find that resummation leads to a significant enhancement of the cross section compared to fixed-order calculations in this regime. Particularly large corrections arise at large forward and backward rapidities of the lepton pair. We also study the scale dependence of the cross section and find it to be substantially reduced by threshold resummation.
Aicher Matthias
Sch{ä}fer Andreas
Vogelsang Werner
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