The study of participant-spectator matter and collision dynamics in heavy-ion collisions

TL;DR

This paper investigates how participant-spectator matter and collision dynamics evolve in heavy-ion collisions, emphasizing the role of binary nucleon-nucleon collisions in thermalization and matter distribution.

Contribution

It introduces a simulation approach highlighting the impact of collision history on participant-spectator matter and momentum space evolution in heavy-ion collisions.

Findings

Participant-spectator matter depends on collision dynamics.

Binary nucleon-nucleon collisions influence momentum space changes.

Collisions lead to thermalization and matter redistribution.

Abstract

We present the simulations of heavy-ion collisions in terms of participant-spectator matter. We find that this matter depends crucially on the collision dynamics and history of the nucleons. The important changes in the momentum space are due to the binary nucleon-nucleon collisions experienced during the high dense phase. This was otherwise not possible with mean field alone. The collisions push the colliding nucleons into midrapidity region responsible for the formation of participant matter. This ultimately leads to thermalization in heavy-ion collisions.