Full and Partial Thermalization of Nucleons in Relativistic Nucleus-Nucleus Collisions

TL;DR

This paper introduces a model for nucleon thermalization in relativistic nucleus-nucleus collisions, using collision counts as a parameter and assuming momentum transfer randomness after multiple interactions.

Contribution

It presents a novel approach to modeling nucleon thermalization by parametrizing system evolution through collision numbers and assuming stochastic momentum transfer.

Findings

Model describes partial and full thermalization of nucleons.

Provides a framework for understanding nucleon momentum distributions.

Bridges transport models with stochastic processes.

Abstract

We propose a mechanism of thermalization of nucleons in relativistic nucleus-nucleus collisions. Our model belongs, to a certain degree, to the transport ones; we consider the evolution of the system, but we parametrize this development by the number of collisions of every particle in the system rather than by the time variable. We based on the assumption that the nucleon momentum transfer after several nucleon-nucleon (-hadron) collisions becomes a random quantity driven by a proper distribution.