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arXiv 1402.0281nucl-thhep-ph
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弦熔合MC模型中质子-核碰撞的长程关联

Long-range correlations in proton-nucleus collisions in MC model with string fusion

Vladimir Kovalenko

摘要:

研究两个快度窗口中观测量之间的长程相关性是弦融合和渗透现象的一个标志。本文在色偶极基元碰撞图象的基础上,在MonteCarlo弦-部分子模型的框架下,计算了p-Pb碰撞的关联函数和关联系数。它描述了PA和AA散射,而不涉及独立核子碰撞的Glauber图片,并包括弦融合的影响。不同类型的关联被认为是:n-n,pt-n,pt-pt,其中n是事件的多重性的带电粒子在一个给定的快度窗口和pt是他们的平均横动量。结果,在目前的工作中获得的p-Pb碰撞,进行了比较与现有的实验结果的pt-n关联在一个窗口,并作出进一步的预测。

英文摘要:

The study of long-range correlations between observables in two rapidity windows was proposed as a signature of the string fusion and percolation phenomenon. In the present work we calculate the correlation functions and coefficients for p-Pb collisions in the framework of the Monte Carlo string-parton model, based on the picture of elementary collisions of color dipoles. It describes pA and AA scattering without referring to the Glauber picture of independent nucleons collisions and includes effects of string fusion. Different types of correlations are considered: n-n, pt-n, pt-pt, where n is the event multiplicity of charged particles in a given rapidity window and pt is their mean transverse momentum. The results, obtained in the present work for p-Pb collisions, are compared with available experimental results for pt-n correlations in one window and further predictions 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。

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