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Unruh thermal hadronization and the cosmological constant

Bleicher, Marcus
Mann, Robert B.
Published in Physics Letters. B. 2018
Collection Open Access - SCOAP3
Abstract We use black holes with a negative cosmological constant to investigate aspects of the freeze-out temperature for hadron production in high energy heavy-ion collisions. The two black hole solutions present in the anti-de Sitter geometry have different mass and are compared to the data showing that the small black hole solution is in good agreement. This is a new feature in the literature since the small black hole in general relativity has different thermodynamic behavior from that of the large black hole solution. We find that the inclusion of the cosmological constant (which can be interpreted as the plasma pressure) leads to a lowering of the temperature of the freeze-out curve as a function of the baryochemical potential, improving the description previously suggested by Castorina, Kharzeev, and Satz.
Keywords Black holeThermalizationHeavy-ion collisionsAnti de Sitter space
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FRASSINO, Antonia Micol, BLEICHER, Marcus, MANN, Robert B. Unruh thermal hadronization and the cosmological constant. In: Physics Letters. B, 2018. doi: 10.1016/j.physletb.2018.02.051 https://archive-ouverte.unige.ch/unige:102641

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Deposited on : 2018-03-02

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