Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 29: Heavy Ion Collisions and QCD Phases VI

HK 29.2: Vortrag

Mittwoch, 29. März 2017, 17:15–17:30, F 1

Magnetic field influence on microscopic dynamics in heavy-ion collisions — •Moritz Greif — Goethe Universität Frankfurt

In heavy-ion collisions, strong magnetic fields occur at very early times after the collision. We show, how the Lorentz force influences the dynamics of quarks in the quark-gluon plasma. For this study, we use the microscopic transport approach BAMPS (Boltzmann Approach To Multi-Parton Scatterings) including magnetic fields. BAMPS, solving the 3+1D Boltzmann equation, is ideally suited for explicit nonequilibrium phenomena. We prove, that thermalization is not affected by external fields, but show that the isotropisation of quark momenta is largely influenced. The asymmetric nature of the magnetic fields gives rise to several interesting phenomena, such as momentum asymmetries of quarks and electromagentic probes produced by quark scattering. We furthermore show first efforts to simulatneously solve the Maxwell- and Boltzmann equation in a common numerical framework to get a more precise picture of the evolution of magnetic fields in the quark-gluon plasma.