arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0707.0123nucl-ex
收藏

RHIC上Cu+Cu碰撞中大横动量的粒子测量

Identified particle measurements at large transverse momenta in Cu+Cu collisions at RHIC

R. S. Hollis

摘要:

在扩展的动量范围内的各种粒子种类的差分测量提供了一个敏感的实验工具,在RHIC的核-核碰撞中产生的介质中的能量损失机制的调查。在这些程序中,系统的研究横向动量谱的带电π介子,质子和反质子的Cu+Cu数据在$\sqrt{s_{NN}}=200$ GeV的函数碰撞中心将提交。这种系统的研究提供了更多的见解之间的相互作用的碎裂和非碎裂的粒子生产的贡献。为了研究系统尺寸对能量损失的影响,对Cu+Cu和Au+Au碰撞系统的顶能结果进行了比较.

英文摘要:

Differential measurements of various particle species over an extended momentum range provide a sensitive experimental tool for investigation of energy loss mechanisms in the medium created in nucleus-nucleus collisions at RHIC. In these proceedings, a systematic study of transverse momentum spectra for charged pions, protons and antiprotons from Cu+Cu data at $\sqrt{s_{NN}}=200$GeV as a function of collision centrality will be presented. Such systematic studies provide additional insights into the interplay between fragmentation and non-fragmentation contributions to the particle production. To investigate system size effects on energy loss, a comparison of top energy results for Cu+Cu and Au+Au collision systems are made.

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。

↑