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arXiv · 1705.05657

Magneto-Vortical evolution of QGP in heavy ion collisions

Ashutosh Dash·Victor Roy·Bedangadas Mohanty
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Abstract

The interplay of magnetic field and thermal vorticity in a relativistic ideal fluid might generate fluid vorticity during the fluid evolution provided the flow fields and the entropy density of the fluid is inhomogeneous \cite{Mahajan:2010}. Exploiting this fact and assuming large magnetic Reynolds number we study the evolution of generalised magnetic field ($\hat{B}$) which is defined as a combination of the usual magnetic field ($\vec{B}$) and relativistic thermal vorticity ($\omega^{\mu\nu}$), in a 2(space)+1(time) dimensional isentropic evolution of Quark Gluon Plasma (QGP) with longitudinal boost invariance. The temporal evolution of $\hat{B}$ is found to be different than $\vec{B}$ , and the $\hat{B}$ evolution also depends on the position of the fluid along the beam direction (taken along the z axis) with respect to the mid-plane $z=0$. Further it is observed that the transverse components ($\hat{B_{x}}$, $\hat{B_{y}}$) evolve differently around the mid-plane.

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Ashutosh Dash, Victor Roy, Bedangadas Mohanty. 2017-05-16. Magneto-Vortical evolution of QGP in heavy ion collisions. https://arxiv.org/abs/1705.05657

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