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arXiv 2003.04768hep-phhep-ex
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高能$pp$碰撞中的衍射激发模型

A model of diffractive excitation in $pp$ collisions at high energies

M. Broilo, V. P. Goncalves, P. V. R. G. Silva

摘要:

本文提出了一个描述高能$pp$碰撞中单衍射激发和双衍射激发的唯象模型。考虑到Good-Walker方法,我们提出了一个散射算符的本征态模型和处理它们之间相互作用的模型,该模型具有微扰QCD驱动的截面的高能行为.分析了总衍射、弹性衍射、单衍射和双衍射截面的性质,并对LHC运行3和宇宙射线实验的能量进行了预测。我们证明,该模型描述了当前数据的能量依赖的截面。与最近的数据比较的$ρ$参数和微分弹性截面也提出了目前的模型的缺点进行了讨论。

英文摘要:

A phenomenological model for the description of the single and double diffractive excitation in $pp$ collisions at high energies is presented. Considering the Good -- Walker approach, we propose a model for the eigenstates of the scattering operator and for the treatment of the interaction between them, with the high energy behavior of the cross section driven by perturbative QCD. The behavior of the total, elastic, single and double diffractive cross sections are analyzed and predictions for the energies of Run 3 of the LHC and those of the Cosmic Rays experiments are derived. We demonstrate that the model describes the current data for the energy dependence of the cross sections. A comparison with the recent data for the $ρ$ parameter and the differential elastic cross section are also presented and shortcomings of the current model are discussed.

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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