期刊论文

中文

华中师范大学学报(自然科学版)

1000-1190

2003

37

3

310-315，329

10.19603/j.cnki.1000-1190.2003.03.009

This work was supported by the National Science Foundation of China under Grant（NO. 1 0 0 750 2 2 ）.；

本校为第一机构

在微扰QCD框架下,描述了强子-强子(p-p)作用中重夸克c和b的产生;基于Glauber模型,考虑核遮蔽效应,推广强子-强子相互作用到核-核(A-A)情况.模拟了LHC能区铅-铅(Pb-Pb)碰撞中重夸克产生和轻子衰变,预言了ALICE向前区域的μ子产生率和双μ不变质量谱,讨论了μ子产物的实验观察效应;建议了一种进行数据分析、抽出μ子对信号和背景产物的物理方案,预言了ALICE实验中关联μ子对的测量精度,解决了ALICE实验中复杂μ子产物的分离技术.

The production of Heavy-flavor quark c(c) and b(b) in pp collisions is described under PQCD framework, the extrapolation from hadron-hadron up to nucleus-nucleus collisions is based on Glauber model and taking into account nucleus shadowing effect. We simulate the heavy quark production and their decay to lepton in Pb-Pb collision at LHC. The muon rate and the invariant mass spectrum of dimuons have been predicted in ALICE forward region. The detection effect analysis technique and signal/background extraction of muon pairs are discussed. The measurement preci...