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arXiv · 1610.08976

Coupling constant corrections in a holographic model of heavy ion collisions

Sašo Grozdanov·Wilke van der Schee
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Abstract

We initiate a holographic study of coupling-dependent heavy ion collisions by analysing for the first time the effects of leading-order, inverse coupling constant corrections. In the dual description, this amounts to colliding gravitational shock waves in a theory with curvature-squared terms. We find that at intermediate coupling, nuclei experience less stopping and have more energy deposited near the lightcone. When the decreased coupling results in an 80% larger shear viscosity, the time at which hydrodynamics becomes a good description of the plasma created from high energy collisions increases by 25%. The hydrodynamic phase of the evolution starts with a wider rapidity profile and smaller entropy.

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Sašo Grozdanov, Wilke van der Schee. 2017-07-19. Coupling constant corrections in a holographic model of heavy ion collisions. https://doi.org/10.1103/physrevlett.119.011601

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