论文标题

在LHC能量的高能量碰撞中分离衍射和非差异事件

Separating Diffractive and Non-Diffractive events in High energy Collisions at LHC energies

论文作者

Dash, Sadhana, Behera, Nirbhay, Nandi, Basanta

论文摘要

高能量辐射和核碰撞中带电的颗粒多重性分布从衍射和非衍射过程中获得了贡献。在实验上,将衍射事件与非划分事件分离出来是具有挑战性的。目前的工作旨在分离和提取LHC Energies HADRONIC碰撞中衍射和非裂纹事件的带电粒子多重性分布。使用主题建模统计工具DeMix的数据驱动模型已被用来证明Pythia 8事件生成器生成的7 TEV的P P碰撞概念证明。该研究表明,Demix技术可用于提取与LHC能量处的衍射性和非裂纹事件有关的实验性观察物的基本基础分布和分数,因此可以将其用作PP碰撞中精确非弹性交叉剖面的实验性确定。

The charged particle multiplicity distribution in high energy hadronic and nuclear collisions receive contribution from both diffractive and non diffractive processes. It is experimentally challenging to segregate diffractive events from non-diffractive events. The present work aims to separate and extract the charged particle multiplicity distribution of diffractive and non-diffractive events in hadronic collisions at LHC energies. A data driven model using the topic modelling statistical tool, DEMIX, has been used to demonstrate the proof of concept for p p collisions at 7 TeV generated by Pythia 8 event generator. The study suggests that DEMIX technique can be used to extract the underlying base distributions and fractions for experimental observables pertaining to diffractive and non-diffractive events at LHC energies and can therefore be used as a step forward for an experimental determination of precise inelastic cross-sections in pp collisions.

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