arXiv 2012.081242020-12hep-ph

横动量谱的理论描述：统一模型

The theoretical description of the transverse momentum spectra: a unified model

Rohit Gupta, Anjaly Menon, Shubhangi Jain, Satyajit Jena

发表信息：: Universe 9 (2023) 2, 111
DOI：: 10.3390/universe9020111

摘要：

横向动量分布分析是理解高能碰撞中产生的相对论粒子动力学的一个有用工具。寻找一个合适的分布函数来近似光谱是粒子物理学研究中一个正在迅速发展的领域。在这项工作中，我们提供了一个详细的理论描述的统一统计框架在高能物理。通过对RHIC和LHC上重离子碰撞产生的π介子横动量谱的分析，验证了该框架在实验数据上的适用性。我们还试图用统一的统计框架解释不同能量pp碰撞中形成的带电强子的横动量谱。这种形式主义已被证明很好地解释了软过程中产生的粒子的光谱，以及硬散射过程中以一致的方式。

英文摘要：

Analysis of transverse momentum distributions is a useful tool to understand the dynamics of relativistic particles produced in high energy collision. Finding a proper distribution function to approximate the spectra is a vastly developing area of research in particle physics. In this work, we have provided a detailed theoretical description of the unified statistical framework in high energy physics. We have tested the applicability of this framework on experimental data by analysing the transverse momentum spectra of pion produced in heavy-ion collision at RHIC and LHC. We have also attempted to explain the transverse momentum spectra of charged hadrons formed in pp collision at different energies using the unified statistical framework. This formalism has been proved to nicely explain the spectra of particles produced in soft processes as well hard scattering processes in a consistent manner.

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