Energy loss effect in high energy nuclear Drell-Yan process
Department of Physics, Hebei Normal University, 050016, ShijiaZhuang, P.R China
2 Physics Department, Shijiazhuang Vocational and Technical Institute, 050081, Shijiazhuang, P.R. China
3 Institute of High Energy Physics, CAS, 100039, Beijing, P.R. China
4 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Acceleration of Lanzhou, 730000, Lanzhou, P.R. China
5 Center of Theoretical Nuclear Physics, CCAST (World Laboratory), P.O. Box 8730, 100080, Beijing, P.R. China
The energy loss effect in nuclear matter, which is a nuclear effect apart from the nuclear effect on the parton distribution as in deep-inelastic scattering process, can be measured best by the nuclear dependence of the high energy nuclear Drell-Yan process. By means of the nuclear parton distribution studied only with lepton deep-inelastic scattering experimental data, the measured Drell-Yan production cross sections for 800 GeV proton incident on a variety of nuclear targets are analyzed within the Glauber framework which takes into account the energy loss of the beam proton. It is shown that the theoretical results with considering the energy loss effect are in good agreement with the FNAL E866 data.
© Springer-Verlag, 2003