Energy loss of fast quarks in nuclei
High Energy Physics - Experiment
2009-10-31 v1 High Energy Physics - Phenomenology
Abstract
We report an analysis of the nuclear dependence of the yield of Drell-Yan dimuons from the 800 GeV/c proton bombardment of , 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 GeV/fm. This is the first observation of a nonzero energy loss of partons traveling in nuclear environment.
Cite
@article{arxiv.hep-ex/0010051,
title = {Energy loss of fast quarks in nuclei},
author = {M. B. Johnson and B. Z. Kopeliovich and I. K. Potashnikova and P. L. McGaughey and J. M. Moss and J. C. Peng and G. T. Garvey and M. J. Leitch and M. R. Adams and D. M. Alde and H. W. Baer and M. L. Barlett and C. N. Brown and W. E. Cooper and T. A. Carey and G. Danner and G. W. Hoffmann and Y. B. Hsiung and D. M. Kaplan and A. Klein and C. Lee and J. W. Lillberg and R. L. McCarthy and C. S. Mishra and M. J. Wang},
journal= {arXiv preprint arXiv:hep-ex/0010051},
year = {2009}
}
Comments
5 pages, including 4 figures