Energy loss of fast quarks in nuclei

Abstract

We report an analysis of the nuclear dependence of the yield of Drell-Yan dimuons from the 800 GeV/c proton bombardment of ${}^{2}H$, C, Ca, Fe, and W targets. Employing a new formulation of the Drell-Yan process in the rest frame of the nucleus, this analysis examines the effect of initial-state energy loss and shadowing on the nuclear-dependence ratios versus the incident proton's momentum fraction and dimuon effective mass. The resulting energy loss per unit path length is $-dE/dz=2.32\pm 0.52\pm 0.5$ GeV/fm. This is the first observation of a nonzero energy loss of partons traveling in nuclear environment.

5 pages, including 4 figures

References in corpus (9)

• Scale evolution of nuclear parton distributions
• Nonperturbative Effects in Gluon Radiation and Photoproduction of Quark Pairs
• Bremsstrahlung of a Quark Propagating through a Nucleus
• Parton energy loss limits and shadowing in Drell-Yan dimuon production
• A Bound on the Energy Loss of Partons in Nuclei
• The Drell-Yan Process and Factorization in Impact Parameter Space
• High-Energy Hadron-Induced Dilepton Production from Nucleons and Nuclei
• Nuclear Shadowing and Coherence Length for Longitudinal and Transverse Photons
• Scaling Variable for Nuclear Shadowing in Deep-Inelastic Scattering

Cited by in corpus (33)

• Cronin Effect in Hadron Production off Nuclei
• J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions
• Coherence Phenomena in Charmonium Production off Nuclei at the Energies of RHIC and LHC
• Nuclear Hadronization: Within or Without?
• Breakdown of QCD factorization at large Feynman x
• Gluon Shadowing and Heavy Flavor Production off Nuclei
• Nuclear effects in the Drell-Yan process at very high energies
• A possible determination of the quark radiation length in cold nuclear matter
• Energy Loss versus Shadowing in the Drell-Yan Reaction on Nuclei
• Measurement of J/{psi} Azimuthal Anisotropy in Au+Au Collisions at {sqrt{s_{NN}}} = 200 GeV
• Diffractive Higgs Production from Intrinsic Heavy Flavors in the Proton
• Dihadron momentum imbalance and correlations in d+Au collisions
• Nuclear Shadowing in Electro-Weak Interactions
• Parton model versus color dipole formulation of the Drell-Yan process
• Initial-state cold nuclear matter energy loss effects on inclusive jet production in p+A collisions at RHIC and LHC
• Measurement of Single Muons at Forward Rapidity in p+p Collisions at sqrt(s) = 200 GeV and Implications for Charm Production
• Higgs Hadroproduction at Large Feynman x
• Partonic Energy Loss and the Drell-Yan Process
• Hard probes in heavy ion collisions at the LHC: PDFs, shadowing and $pA$ collisions
• Energy Loss Effect in High Energy Nuclear Drell-Yan Process
• Limits on Intrinsic Charm Production from the SeaQuest Experiment
• Nuclear Broadening of Transverse Momentum in Drell-Yan Reactions
• Effects of the Running of the QCD Coupling on the Energy Loss in the Quark-Gluon Plasma
• Cold Nuclear Matter Effects on Dijet Productions in Relativistic Heavy-ion Reactions at LHC
• Cronin effect in the Drell-Yan reaction
• Initial-state splitting kernels in cold nuclear matter
• Scanning the Quark-Gluon Plasma with Charmonium
• Nuclear medium effects in Drell-Yan process
• EMC effect in semi-inclusive deep-inelastic scattering process
• A systematic study of initial state quark energy loss in fixed target proton nucleus collision
• x_F-dependence of J/Psi suppression in pA collisions
• A Novel Scheme to Search for Fractional Charge Particles in Low Energy Accelerator Experiments
• Physics of Large-x Nuclear Suppression