We adopt a factorized QCD formalism to describe the transverse momentum distribution of low-mass lepton pairs produced in pp collisions, when the pair transverse momentum QT≫Q, with the pair's invariant mass Q as low as Q∼ΛQCD. We extend this formalism to dilepton production in AA collisions by including the nuclear-dependent power correction due to parton multiple scattering.
@article{arxiv.0907.4498,
title = {Low-mass dilepton production in $pp$ and $AA$ collisions},
author = {Zhong-Bo Kang and Jian-Wei Qiu and Werner Vogelsang},
journal= {arXiv preprint arXiv:0907.4498},
year = {2009}
}
Comments
4 pages, 1 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee