sqrt (s_NN)= 200 GeV Cu+Cu 碰撞中的 J/psi 产生
核实验
2009-01-14 v2
摘要
PHENIX 实验在快度范围、横向动量从 0 到超过 5 GeV/c 的范围内，测量了GeV Cu+Cu 碰撞中产生的产额。不变产额作为快度、横向动量和碰撞中心度的函数被获得，并与相同能量下 p+p 和 Au+Au 碰撞的结果进行了比较。对于具有中小数量参与者的碰撞中的产生，Cu+Cu 数据提供了比现有 Au+Au 数据高得多的精度，为区分冷核物质效应和热核物质效应提供了关键约束。
引用
@article{arxiv.0801.0220,
title = {J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions},
author = {PHENIX Collaboration and A. Adare},
journal= {arXiv preprint arXiv:0801.0220},
year = {2009}
}
备注
375 authors from 57 institutions, 6 pages, 4 figures, 1 table. Published in Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are publicly available at http://www.phenix.bnl.gov/papers.html v2 has minor changes made during the PRL review process