arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.08912hep-ph
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简单模型中低x区的多重数分布

Multiplicity distributions in the low x regime in a simple model

G. R. Germano, F. S. Navarra

摘要:

在这项工作中,我们介绍了小的变化,在模型中提出的E。Levin和D.质子-质子碰撞中产生的粒子多重数分布。我们比较的预测模型与现有的实验数据从大型强子对撞机。我们还考虑了E. Gotsman和E.莱文这两种模型都很好地描述了中心赝快度区($|η| < 0.5$)的多重数分布。当我们考虑在较宽的赝快度间隔($|η| < 2.4$)上测量的粒子时,与数据的一致性不是那么好。有趣的是,当选择具有更高横向动量($p_T > 500$ MeV)的事件时,一致性变得更好。

英文摘要:

In this work we introduce small changes in the model proposed by E. Levin and D. Kharzeev for multiplicity distributions of particles produced in proton-proton collisions. We compare the predictions of the model with the available experimental data from the LHC. We also consider the most recent version of the model proposed by E. Gotsman and E. Levin. These two versions of the model give a good description of the measured multiplicity distributions in the central pseudo-rapidity region ($|η| < 0.5$). The agreement with data is not so good when we consider the particles measured over a wider pseudo-rapidity interval ($|η| < 2.4$). Interestingly, the agreement becomes better when one selects events with higher transverse momentum ($p_T > 500$ MeV).

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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