EPJ Web Conf.
Volume 204, 2019XXIV International Baldin Seminar on High Energy Physics Problems “Relativistic Nuclear Physics and Quantum Chromodynamics” (Baldin ISHEPP XXIV)
|Number of page(s)||6|
|Section||Structure Functions of Hadrons and Nuclei|
|Published online||03 April 2019|
Polarization in HIC: comparison of methods
1 Joint Institute for Nuclear Research, 141980 Dubna, Russia
2 Institute of Theoretical and Experimental Physics, B. Cheremushkinskaya 25, 117218 Moscow, Russia
3 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe Shosse 31, 115409 Moscow, Russia
4 School of Biomedicine, Far Eastern Federal University, 690950 Vladivostok, Russia
Published online: 3 April 2019
Based on the Wigner function for an medium with thermal vorticity, an exact non-perturbative formula for axial current was obtained. It is confirmed that the Chiral Vortical Effect results from the Wigner function. It is shown that the angular velocity and acceleration play the role of new chemical potentials, which is expressed in the appearance of combination . It is shown that acceleration enters in the form of imaginary chemical potential and the consequences of this fact are investigated. An expression for the boundary temperature for a medium of fermions, which simultaneously has acceleration and rotation, is derived. This temperature in the particular case coincides with the temperature of Unruh.
© The Authors, published by EDP Sciences, 2019
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