# Effect of an electromagnetic field on the spectra and elliptic flow of particles

## TL;DR

This study simulates the impact of a decaying electromagnetic field on particle spectra and elliptic flow in 2+1 dimensions, revealing enhanced particle production and modifications in flow patterns depending on field strength, particle mass, and charge.

## Contribution

It introduces a simulation of electromagnetic field effects on flow evolution, highlighting how external fields influence particle production and flow characteristics in a novel way.

## Key findings

- Particle production increases with electromagnetic field strength.
- Enhancement is more significant at high transverse momentum.
- Electromagnetic fields modify elliptic flow depending on particle properties.

## Abstract

In 2+1 dimensions, the evolution of flow under the influence of an external electromagnetic field is simulated. The external electromagnetic field is exponentially decaying with time. Under the same initial conditions, flow evolution with and without the external electromagnetic field is compared. It was found that the production of particles was enhanced when the external electromagnetic field was present. As the strength of the electromagnetic field increased, more particles were produced. Enhancement is greater at the high transverse momentum than at the low transverse momentum. In addition, the electromagnetic field also modifies the elliptic flow and the modification is related to the mass and charge of the particles.