The extraction of nuclear sea quark distribution and energy loss effect in Drell-Yan experiment

Abstract

The next-to-leading order and leading order analysis are performed on the differential cross section ratio from Drell-Yan process. It is found that the effect of next-to-leading order corrections can be negligible on the differential cross section ratios as a function of the quark momentum fraction in the beam proton and the target nuclei for the current Fermilab and future lower beam proton energy. The nuclear Drell-Yan reaction is an ideal tool to study the energy loss of the fast quark moving through cold nuclei. In the leading order analysis, the theoretical results with quark energy loss are in good agreement with the Fermilab E866 experimental data on the Drell-Yan differential cross section ratios as a function of the momentum fraction of the target parton. It is shown that the quark energy loss effect has significant impact on the Drell-Yan differential cross section ratios. The nuclear Drell-Yan experiment at current Fermilab and future lower energy proton beam can not provide us with more information on the nuclear sea quark distribution.

17 pages, 4 figures

References in corpus (9)

• Scale evolution of nuclear parton distributions
• Determination of nuclear parton distributions
• Nuclear parton distribution functions and their uncertainties
• Parton energy loss limits and shadowing in Drell-Yan dimuon production
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Cited by in corpus (11)

• Determination of nuclear parton distribution functions and their uncertainties at next-to-leading order
• Nuclear parton distribution functions with uncertainties in a general mass variable flavor number scheme
• Medium modifications of the bound nucleon GPDs and incoherent DVCS on nuclear targets
• The uncertainties due to quark energy loss on determining nuclear sea quark distribution from nuclear Drell-Yan data
• Systematic analysis of the incoming quark energy loss in cold nuclear matter
• Quark energy loss in semi-inclusive deep inelastic scattering of leptons on nuclei
• Nuclear effects on J/ψ production in proton-nucleus collisions
• Nuclear medium effects in Drell-Yan process
• Bjorken variable and scale dependence of quark transport coefficient in Drell-Yan process for proton incident on nucleus
• Atomic mass, Bjorken variable and scale dependence of quark transport coefficient in Drell-Yan process for proton incident on nucleus
• The study of the incoming parton energy loss effect on the NLO nuclear Drell-Yan ratios