3 papers
nucl-th2025
What happens in hydrodynamic simulations of heavy-ion collisions when causality is violated?
Lorenzo Gavassino, Henry Hirvonen, Jean-Francois Paquet +2
We summarize our recent investigations on how causality violations in Israel-Stewart-type relativistic viscous hydrodynamic simulations can give rise to both analytical and numeric…
nucl-th2025
Acausality-driven instabilities in transient relativistic viscous hydrodynamics
Lorenzo Gavassino, Henry Hirvonen, Jean-François Paquet +2
We investigate non-linear instabilities stemming from superluminal propagation of information in Israel-Stewart-like models of relativistic viscous fluid dynamics. In relativity, t…
hep-ph2025
Feasibility of measuring the speed of sound of the quark-gluon plasma from the multiplicity and mean of ultracentral heavy-ion collisions
Lorenzo Gavassino, Henry Hirvonen, Jean-François Paquet +2
The mean transverse momentum of hadrons has been observed experimentally and in numerical simulations to have a power-law dependence on the hadronic multiplic…