# Energy loss of heavy and light quarks in holographic magnetized background

## TL;DR

This paper uses holographic models to analyze how strong magnetic fields influence energy loss, diffusion, and jet quenching of quarks in heavy ion collisions, revealing directional dependencies of these effects.

## Contribution

It provides a systematic holographic analysis of magnetic field effects on quark energy loss and transport properties, highlighting directional differences in these phenomena.

## Key findings

- Magnetic field suppresses quark and jet energy loss more in the transverse direction.
- Diffusion coefficient decreases with magnetic field transversely, increases parallelly.
- Magnetic field enhances light quark energy loss transversely more than parallelly.

## Abstract

We systematically study holographic effects on the magnetic field dependence of the drag force, diffusion coefficient, jet quenching parameter of heavy quarks and the shooting string energy loss of light quarks in the RHIC and LHC energy regions by using the AdS/CFT correspondence in this paper. This study is motivated by the phenomena of strong magnetic field and jet quenching, which have been found in relativistic heavy ion collisions. The probe's direction of motion is perpendicular and parallel to the direction of magnetic field $B$. The effects of magnetic field on energy loss when moving perpendicular to the magnetic field direction are larger than moving parallel to the magnetic field direction, which implies that the magnetic field tends to suppress more quarks and jets when moving in the transverse direction than in the parallel direction. It is found that the diffusion coefficient decreases with the magnetic field in the transverse direction, but increases with the magnetic field in the parallel direction, which indicates that the quark may diffuse farther when moving parallel to the magnetic field direction. We also find that the magnetic field will enhance the energy loss of the light quarks when moving in the transverse direction than in the parallel direction.