A study of transverse momentum distributions of jets produced in p-p, p-\bar p, d-Au, Au-Au, and Pb-Pb collisions at high energies

TL;DR

This study analyzes the transverse momentum distributions of jets in various high-energy collision systems using a multi-source thermal model, revealing insights into the underlying scattering interactions and system characteristics.

Contribution

It introduces a multi-component Erlang distribution model to accurately describe jet transverse momentum data across multiple collision types, linking parameters to interaction dynamics.

Findings

The model fits experimental data well across all collision systems.

Different components correspond to distinct scattering processes.

Parameters provide insights into the interaction mechanisms.

Abstract

The transverse momentum distributions of jets produced in p-p, p-\bar p, d-Au, Au-Au, and Pb-Pb collisions at high energies with different selected conditions are analyzed by using a multi-source thermal model. The multi-component (mostly two-component) Erlang distribution used in our description is in good agreement with the experimental data measured by the STAR, D0, CDF II, ALICE, ATLAS, and CMS Collaborations. Related parameters are extracted from the transverse momentum distributions and some information on different interacting systems are obtained. In the two-component Erlang distribution, the first component has usually two or more sources which are contributed by strong scattering interactions between two quarks or more quarks and gluons, while the second component has mostly two sources which are contributed by harder head-on scattering between two quarks.