RT Journal Article
T1 Eta/s is critical (at phase transitions)
A1 Dobado González, Antonio
A1 Llanes Estrada, Felipe José
A1 Torres Rincón, Juan Miguel
AB 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.
PB Amer Inst Physics
SN 0094-243X
YR 2009
FD 2009
LK https://hdl.handle.net/20.500.14352/50645
UL https://hdl.handle.net/20.500.14352/50645
LA eng
NO © 2009 American Institute of Physics. We thank the organizers of the XIII Mexican School of Particles and Fields for this very successful meeting.Mexican Workshop on Particles and Fields (13. 2008. Hermosillo, Méjico).We thank the organizers of the XIII Mexican School of Particles and Fields for this verysuccessful meeting. Work supported by grants BSCH-PR34/07-15875, FPA 2004 02602,FPA 2005-02327, and Accion Integrada Hispano-Portuguesa HP2006-0018.
NO Accion Integrada Hispano-Portuguesa
DS Docta Complutense
RD 8 abr 2025