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Gießen 2024 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 21: Heavy-Ion Collisions and QCD Phases III

HK 21.1: Talk

Tuesday, March 12, 2024, 15:45–16:00, HBR 62: EG 03

Anomalous transport phenomena on the latticeBastian Brandt, Gergely Endrodi, •Eduardo Garnacho-Velasco, and Gergely Markó — Bielefeld University, Bielefeld, Germany

We study the Chiral Separation Effect (CSE) and Chiral Magnetic Effect (CME) using lattice QCD simulations with improved staggered fermions. We present the first continuum extrapolated result of the CSE conductivity in QCD with physical quark masses as a function of temperature, revealing a severe suppression of this effect at low temperatures. In addition, we discuss several subtleties that arise on the study of CSE on the lattice. We also shed light on the equilibrium interpretation of the CME, clarifying the expected vanishing current in this setup, and how to reconcile this with former lattice QCD results by emphasizing the importance of the discretization of the currents used.

Keywords: Lattice QCD; Chiral Magnetic Effect; Anomalous transport; Chiral Separation Effect; CP-violation

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