Nuclear effects in the Drell-Yan process at very high energies

Details Nuclear effects in the Drell-Yan process at very high energies Nuclear effects in the Drell-Yan process at very high energies

2001-10-16

arxiv.org/abs/hep-ph/0110221v3

Phys.Rev.C67:014903,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

46 pages, 18 figures, title changed and some discussion added, accepted for publication in PRC

Scientific paper

10.1103/PhysRevC.67.014903

We study Drell-Yan (DY) dilepton production in proton(deuterium)-nucleus and in nucleus-nucleus collisions within the light-cone color dipole formalism. This approach is especially suitable for predicting nuclear effects in the DY cross section for heavy ion collisions, as it provides the impact parameter dependence of nuclear shadowing and transverse momentum broadening, quantities that are not available from the standard parton model. For p(D)+A collisions we calculate nuclear shadowing and investigate nuclear modification of the DY transverse momentum distribution at RHIC and LHC for kinematics corresponding to coherence length much longer than the nuclear size. Calculations are performed separately for transversely and longitudinally polarized DY photons, and predictions are presented for the dilepton angular distribution. Furthermore, we calculate nuclear broadening of the mean transverse momentum squared of DY dileptons as function of the nuclear mass number and energy. We also predict nuclear effects for the cross section of the DY process in heavy ion collisions. We found a substantial nuclear shadowing for valence quarks, stronger than for the sea.

Affiliated with

Also associated with

No associations

Rating

Nuclear effects in the Drell-Yan process at very high energies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nuclear effects in the Drell-Yan process at very high energies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear effects in the Drell-Yan process at very high energies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-347588