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5–11 Feb 2017
Hyatt Regency Chicago
America/Chicago timezone

Sphalerons and Axial Charge Production Out of Equilibrium

Not scheduled
2h 30m
Hyatt Regency Chicago

Hyatt Regency Chicago

151 East Wacker Drive Chicago, Illinois, USA, 60601
Board: J16

Speaker

Mark Mace (Stony Brook University)

Description

We report on a first computation of non-equilibrium sphaleron transitions in the Glasma created immediately after the collision of ultra-relativistic nuclei[1]. Based on classical-statistical real time lattice gauge theory simulations, we find that the rate of topological transitions is initially strongly enhanced relative to the thermal equilibrium sphaleron transition rate and decays with time during the thermalization process. We will also demonstrate how our simulations can be extended to include dynamical fermions [2], in order to compute the initial state production of axial charge —  a crucial input for the ab initio dynamical modeling of the Chiral Magnetic Effect in heavy-ion collisions. 

[1] M. Mace, S. Schlichting, R. Venugopalan Phys.Rev. D93 (2016) no.7, 074036 arXiv:1601.07342 [hep-ph].
[2] M. Mace, N. Mueller, S. Schlichting, S. Sharma, in preparation.

Preferred Track Initial State Physics and Approach to Equilibrium
Collaboration BEST

Primary author

Mark Mace (Stony Brook University)

Co-authors

Niklas Mueller (Heidelberg University) Sayantan Sharma (BNL) Soeren Schlichting (University of Washington)

Presentation materials