Effect of intense magnetic fields on reduced-MHD evolution in $\sqrt{s_{\rm NN}}$ = 200 GeV Au+Au collisions

Understand

We investigate the effect of large magnetic fields on the $2+1$ dimensional reduced-magnetohydrodynamical expansion of hot and dense nuclear matter produced in $\sqrt{s_{\rm NN}}$ = 200 GeV Au+Au collisions.

• For the sake of simplicity, we consider the case where the magnetic field points in the direction perpendicular to the reaction plane.
• We also consider this field to be external, with energy density parametrized as a two-dimensional Gaussian.
• The width of the Gaussian along the directions orthogonal to the beam axis varies with the centrality of the collision.