p-A 碰撞中 J/Psi 与 Psi' 抑制差异的测量
核实验
2008-11-26 v3
摘要
对 800 GeV/c 质子入射重核与轻核靶时每核子 J/Psi 和 Psi' 产生产额抑制的测量已在很宽的 xF 和 pT 覆盖范围内完成。观测到的抑制在 xF 值 0.25 及以下最小，并在更大 xF 值处增强。它在小 pT 处也最强。在 p-A 碰撞中首次观测到 Psi' 与 J/Psi 的显著差别。Psi' 的抑制在 xF 近零处强于 J/Psi，但在 xF > 0.6 时变得与 J/Psi 的抑制相当。
引用
@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}
}
备注
5 pages, 4 figures, accepted for publication by PRL