Hyperon polarization in heavy-ion collisions and holographic gravitational anomaly
- 20 April 2018
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 97 (4), 041902
- https://doi.org/10.1103/PhysRevC.97.041902
Abstract
We study the energy dependence of global polarization of Lambda hyperons in peripheral Au-Au collisions. We combine the calculation of vorticity and strange chemical potential in the framework of the kinetic quark-gluonstring model with the anomalous mechanism related to the axial vortical effect. We pay special attention to the temperature-dependent contribution related to the holographic gravitational anomaly and find that the preliminary data from the BNL Relativistic Heavy Ion Collider are compatible with its suppression discovered earlier in lattice calculations.Funding Information
- Russian Foundation for Basic Research (17-02-01108)
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