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  1. APR

    14

    Friday

    Nuclear Theory/RIKEN Seminar

    "Effect of magnetic field on flow fluctuations in"

    Presented by Ajit M. Srivvastava

    2 pm, Small Seminar Room, Bldg. 510

    Friday, April 14, 2017, 2:00 pm

    Hosted by: 'Heikki Mantysaari'

    Very strong magnetic fields can arise in non-central heavy-ion collisions at ultrarelativistic energies, which may not decay quickly in a conducting plasma. We carry out magnetohydrodynamics simulations to study the effects of this magnetic field on the evolution of the plasma and on resulting flow fluctuations. Our results show that magnetic field leads to enhancement in elliptic flow, while flow fluctuations lead to reorganization of magnetic flux resulting in a transient increase in the local magnetic field. We also show generation of vorticity arising from nontrivial dependence of magnetosonic waves on pressure gradients and magnetic field direction. Magnetic field from collision of deformed nuclei shows very nontrivial features and can lead to qualitatively new effects on plasma evolutions. We discuss possibility of dynamo effect in the presence of vortices if any exotic high baryon density QCD phases are achieved in heavy-ion collisions.

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