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arXiv 1609.08609nucl-thhep-ph
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利用全局测量理解RHIC和LHC能量下的粒子产生

Comprehending particle production at RHIC and LHC energies using global measurements

Sadhana Dash, Basanta K. Nandi, Ranjit Nayak, Ashutosh Kumar Pandey, Priyanka Sett

摘要:

利用两分量Glauber方法研究了RHIC和LHC宽能量范围重离子碰撞中带电粒子多重数密度($dN_{ch}/dη$)和横向能量密度($dE_{T}/dη$)的中心依赖性.一个全面的研究表明,数据是很好地描述的两个组件模型,其中包括“软过程”和“硬过程”的贡献,为不同的中心类和能源的框架内。通过$dN_{ch}/dη$(和$dE_{T}/dη$)的比率比较两种不同能量下的数据,以了解能量和$x$缩放的相互作用。

英文摘要:

The centrality dependence of the charged-particle multiplicity densities ($dN_{ch}/dη$) and transverse energy densities ($dE_{T}/dη$) are investigated using the two-component Glauber approach for broad range of energies in heavy ion collisions at RHIC and LHC. A comprehensive study shows that the data is well described within the framework of two component model which includes the contribution of "soft processes" and "hard processes" for different centrality classes and energies. The data at two different energies are compared by means of the ratio of $dN_{ch}/dη$ (and $dE_{T}/dη$) to see the interplay of energy and $x$-scaling.

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。

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