Continuous evolution of electromagnetic field in heavy-ion collisions

TL;DR

This paper investigates the evolution of electromagnetic fields in heavy-ion collisions, demonstrating that the fields remain nearly constant from 1 fm/c after collision until freezeout by accounting for the Quark Gluon Plasma's response.

Contribution

It introduces a method to compute electromagnetic field evolution considering plasma response, showing near time-independence during the collision process.

Findings

Electromagnetic fields are nearly time-independent from 1 fm/c after collision.

The electromagnetic response of the Quark Gluon Plasma significantly influences field evolution.

Field continuity is maintained throughout the collision process.

Abstract

In heavy-ion collisions the electromagnetic field exists before the hot nuclear matter emergence. Requiring the field continuity we compute it in the central rapidity region by taking into account the electromagnetic response of the Quark Gluon Plasma. We show that the electromagnetic field is nearly time-independent from about 1~fm/c after the collision until the freezeout.