Hyperon polarization in heavy-ion collisions and holographic gravitational anomaly

Baznat Mircea; Gudima Konstantin K.; Sorin Alexander S.; Teryaev Oleg

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BAZNAT, Mircea, GUDIMA, Konstantin K., SORIN, Alexander S., TERYAEV, Oleg. Hyperon polarization in heavy-ion collisions and holographic gravitational anomaly. In: Physical Review C, 2018, nr. 4(97), p. 0. ISSN -. DOI: https://doi.org/10.1103/PhysRevC.97.041902

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Physical Review C

Numărul 4(97) / 2018 / ISSN - /ISSNe 2469-9985

Hyperon polarization in heavy-ion collisions and holographic gravitational anomaly

DOI:https://doi.org/10.1103/PhysRevC.97.041902

Pag. 0-0

Baznat Mircea¹², Gudima Konstantin K.², Sorin Alexander S.¹³⁴, Teryaev Oleg⁴¹³

¹ Joint Institute of Nuclear Research,
² Institute of Applied Physics, Academy of Sciences of Moldova,
³ International University „Dubna",
⁴ National Research Nuclear University MEPhI, Moscow

Disponibil în IBN: 5 mai 2018

Rezumat

We study the energy dependence of global polarization of Λ hyperons in peripheral Au-Au collisions. We combine the calculation of vorticity and strange chemical potential in the framework of the kinetic quark-gluon-string 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.

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