Measurement of Differences Between J/Psi and Psi' Suppression in p-A Collisions
Nuclear Experiment
2008-11-26 v3
Abstract
Measurements of the suppression of the yield per nucleon of J/Psi and Psi' production for 800 GeV/c protons incident on heavy relative to light nuclear targets have been made with very broad coverage in xF and pT. The observed suppression is smallest at xF values of 0.25 and below and increases at larger values of xF. It is also strongest at small pT. Substantial differences between the Psi' and J/Psi are observed for the first time in p-A collisions. The suppression for the Psi' is stronger than that for the J/Psi for xF near zero, but becomes comparable to that for the J/Psi for xF > 0.6.
Keywords
Cite
@article{arxiv.nucl-ex/9909007,
title = {Measurement of Differences Between J/Psi and Psi' Suppression in p-A Collisions},
author = {M. J. Leitch and W. M. Lee and M. E. Beddo and C. N. Brown and T. A. Carey and T. H. Chang and W. E. Cooper and C. A. Gagliardi and G. T. Garvey and D. F. Geesaman and E. A. Hawker and X. C. He and L. D. Isenhower and D. M. Kaplan and S. B. Kaufman and D. D. Koetke and P. L. McGaughey and J. M. Moss and B. A. Mueller and V. Papavassiliou and J. C. Peng and G. Petitt and P. E. Reimer and M. E. Sadler and W. E. Sondheim and P. W. Stankus and R. S. Towell and R. E. Tribble and M. A. Vasiliev and J. C. Webb and J. L. Willis and G. R. Young},
journal= {arXiv preprint arXiv:nucl-ex/9909007},
year = {2008}
}
Comments
5 pages, 4 figures, accepted for publication by PRL