Impact of string interactions on the space-time evolution of hadronic vertices

TL;DR

This paper explores how string interactions influence the space-time evolution of hadronic vertices in high-energy heavy ion collisions, revealing that string interactions can reduce string density and affect hadronization processes.

Contribution

It introduces a string-based model incorporating string--string interactions via the shoving model, providing new insights into the dynamics of hadron production in heavy ion collisions.

Findings

String density at hadronization is high in central collisions.

Initial string overlap right after collisions is not necessarily large.

String--string interactions decrease string density, affecting hadronization.

Abstract

We investigate the space-time picture of string evolution and hadron production in a fully string-based model for high energy collisions involving heavy ions. We find that although the density strings is quite large at the time of hadronization in a central heavy ion collision, the initial overlap between them right after the collisions is not necessarily large. We also find that when including string--string interactions using the so-called shoving model, the density of strings is decreased which should dampen the rapid increase in string tension in the rope hadronization with multiplicity that we found in a previous paper.