2001/09/24 by Jian-Wei Qiu, Jianwei Qiu, Xiaofei Zhang · 16 citations
Physics and Astronomy · #Cross section (physics) #Deep inelastic scattering #Drell–Yan process #Electron #High-Energy Particle Collisions Research #Inelastic scattering #Lepton #Nuclear physics #Pair production #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scattering #hep-ph #nucl-th
paper · pdf · doi:10.1016/s0370-2693(01)01446-0
published in Physics Letters B 525(3-4), 265-272 (Elsevier BV) · Latex, 11 pages including 3 figures
arxiv created 2001/09/24 · openalex publication_date 2002/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate nuclear effect in Drell-Yan massive lepton-pair production in terms of parton multiple scattering in Quantum Chromodynamics (QCD). We present the nuclear modification to inclusive Drell-Yan cross section dσ/dQ2 in terms of multiparton correlation functions. By extracting the size of the correlation functions from measured Drell-Yan transverse momentum broadening in nuclear medium, we determine the nuclear modification at O(αs/Q2). We find that the nuclear modification strongly enhances the inclusive Drell-Yan cross section in the intermediate mass region (IMR): 1.5 < Q < 2.5 GeV. We argue that the Drell-Yan process is responsible for the majority of the observed dimuon enhancement in the IMR in the Pb-Pb collisions at CERN SPS.