Elliptic Flow of Particles under the Influence of Electromagnetic Field Evolution in Relativistic Heavy Ion Collision

TL;DR

This study investigates how electromagnetic fields influence the elliptic flow of particles in relativistic heavy-ion collisions, revealing energy-dependent effects and the importance of electromagnetic field evolution on particle flow patterns.

Contribution

It introduces a detailed analysis of electromagnetic field effects on particle flow using the iEBE-VISHNU framework, considering multiple electric force sources and collision energies.

Findings

Electromagnetic fields affect particle flow differently at various transverse momenta.

Heavier particles experience a higher initial push from electromagnetic forces.

Elliptic flow changes vary with collision energy and particle type.

Abstract

The bending of flow of identified particles from the relativistic heavy-ion collision is investigated using the iEBE-VISHNU framework. The Maxwell's equations are applied to compute the incremental drift velocity and the change in the elliptic flow of particles from the four sources of the electric force, which are of coulomb (EC), Lorentz (EL), Faraday (EF) and Plasma-based. We find out that the field evolution arouses flow at lower transverse momentum and suppresses it at higher. Heavier particles get higher initial push, and particles and their anti-particles get crudely the same elliptic flow changes. Moreover, elliptic flow is found to show different percentage increase for different collision energies. To conclude, the present study shows that besides the inclusion of electromagnetic fields, the increase in collision energy affects the elliptic flow of particles in a non-uniform fashion throughout the evolution. Further study by softening many of the crude assumptions we made and keeping the functionality of parameters is needed to establish a better understanding of the electromagnetic field evolution and its effects on the created system.