中文

高能核碰撞中的开放粲产生及其轻子对信号

核理论 2007-05-23 v1

摘要

研究了核碰撞初始和预平衡阶段的开放粲产生。在s=200AGeV\sqrt s=200 AGeVA+AA+A碰撞中,预平衡对开放粲产生的贡献对初碰撞后产生的mini喷注的动量与时空坐标间关联非常敏感。引入了基于不确定性原理的极小关联模型,其导致的预平衡粲产额相较于初始产额仅很小。提出在s=200\sqrt s=200 AGeV的p+Ap+A反应中由开放粲衰变产生的异号轻子对ee,eμee, e\muμμ\mu\mu作为核阴影效应的度量。通过近似标度,表明p+Ap+A碰撞谱与pppp碰撞谱之比能很好反映阴影函数。最后表明所需测量在RHIC上是可行的。

关键词

引用

@article{arxiv.nucl-th/9609056,
  title  = {Open Charm Production and its Lepton Pair Signal in High Energy Nuclear Collisions},
  author = {Ziwei Lin},
  journal= {arXiv preprint arXiv:nucl-th/9609056},
  year   = {2007}
}

备注

Ph.D thesis, ps file, 184 pages including 36 figures, LaTex files, a style file, and figure files are available via www at http://nt1.phys.columbia.edu/ZLIN/thesis.uu , or via anonymous ftp at ftp://nt1.phys.columbia.edu/pub/thesis/thesis.uu (username: ftp, password: complete email address). The two LaTex driver-files are frontpage.tex and thesis-driver.tex