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arXiv 1102.3087hep-ph
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高能Au+Au和Pb+Pb碰撞中“软”粒子的产生

On Production of `Soft' Particles in Au+Au and Pb+Pb Collisions at High Energies

A. C. Das Ghosh, Goutam Sau, S. K. Biswas, S. Bhattacharyya

摘要:

由于微扰量子色动力学(pQCD)不适用于这一区域,高能碰撞中低$p_T$(软)强子粒子的产生是一个重要的研究热点。本文利用两个非标准模型探讨了两个相邻能量的对称核碰撞中轻粒子产生的性质。计算结果与实测数据吻合较好。尽管如此,由于这里应用的模型并不打算提供深入了解这种碰撞所涉及的实际物理过程,目前无法补救的现象学界限和约束继续存在。

英文摘要:

Production of low-$p_T$ (soft) hadronic particles in high energy collisions constitutes a significant corner of special interests and problems, as the perturbative quantum chromodynamics (pQCD) does not work in this region. We have probed here into the nature of the light particle production in two symmetric nuclear collisions at two neighbouring energies with the help of two non-standard models. The results are found to be in good agreement with data. Despite this, as the models applied here are not intended to provide deep insights into the actual physical processes involved in such collisions, the phenomenological bounds and constraints which cannot be remedied for the present continue to exist.

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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