2012/08/03 by Hongxi Xing, Yun Guo, Xing, Hongxi +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.48550/arxiv.1208.0751
Talk given at Hard Probes 2012, 27 May - 1 June, 2012, Cagliari, Italy
openalex publication_date 2012/08/03 · arxiv created 2012/10/15 · arxiv updated 2012/10/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Within the generalized high-twist factorization formalism, we express the contribution from multiple parton scattering and induced gluon radiation to the DY dilepton spectra in terms of nuclear modified effective beam quark distribution function. We show that beam quark energy loss is characterized by jet transport parameter q, which is related to the local gluon density of the medium. Using the value of q determined from the deeply inelastic scattering (DIS) data, we evaluate the nuclear modification factor in Drell-Yan process in p+A collisions. Effects of parton energy loss in the DY spectra are found negligible in the Fermilab experimental data at E\rm lab=800 GeV relative to parton shadowing while the predicted suppression of DY spectra are significant at E\rm lab=120 GeV.