2026-06-27T10:30:48Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/506452024-09-04T14:04:23Zcom_20.500.14352_14col_20.500.14352_15

Dobado González, Antonio Llanes Estrada, Felipe José Torres Rincón, Juan Miguel 2023-06-20T10:34:58Z 2023-06-20T10:34:58Z 2009 0094-243X 10.1063/1.3131589 https://hdl.handle.net/20.500.14352/50645 http://dx.doi.org/10.1063/1.3131589 http://www.aip.org/ http://arxiv.org/abs/0812.2203 The viscosity over entropy density ratio, or KSS number, can help isolate the critical point in the hadron phase-diagram in Relativistic Heavy Ion Collisions. We argue that this quantity does have a minimum at a phase transition or crossover. Although indications from conventional non-relativistic gases point out to even a divergence in eta/s when the phase-transition is first-order, since the critical exponent is rather low, this will be more difficult to ascertain in RHIC or FAIR. The experimental data are more likely to reveal a discontinuity for a first order phase transition or a smooth minimum at a crossover. eng open access Eta/s is critical (at phase transitions) journal article