arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1302.0894nucl-exhep-ex
收藏

在LHC上用ALICE计算宽赝快度范围内的带电粒子赝快度密度和各向异性流

Charged-particle pseudorapidity density and anisotropic flow over a wide pseudorapidity range using ALICE at the LHC

Kristjan Gulbrandsen

摘要:

带电粒子的赝快度密度和各向异性流提供了关于重离子碰撞中全局变量和关联的基本信息。赝快度密度与粒子产生的能量有关,而各向异性流与这些粒子之间相互作用的集体效应有关。将这些测量扩展到非常向前的伪快速性,产生关于系统的纵向扩展的信息。首次测量在大型强子对撞机超过8个单位的伪快度。纵向尺度的测量进行了分析和比较模型进行。

英文摘要:

The pseudorapidity density and anisotropic flow of charged-particles provide fundamental information about global variables and correlations in heavy-ion collisions. The pseudorapidity density is related to the energy available for particle production while the anisotropic flow is related to collective effects from interactions between these particles. Extending these measurements to very forward pseudorapidities yields information about the longitudinal expansion of the system. The first measurements performed at the LHC over more than 8 units of pseudorapidity are presented. The longitudinal scaling of the measurements is analyzed and comparison to models is performed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑