IWM-EC International Conference on Multi facets of EoS and Clustering

Session

Nuclear EOS and multi-messenger astronomy

May 28, 2026, 9:30 AM

Sala Blu (Il Fuligno (Firenze, Italy))

Conveners

Nuclear EOS and multi-messenger astronomy

• Arnaud Le Fèvre (GSI Helmholtzzentrum Darmstadt)

1. Universal Dense-Matter Trace Anomaly from Collective Flow in Heavy-Ion Collisions and Global properties of Neutron Stars

Bao-An Li (East Texas A&M University)

5/28/26, 9:30 AM

Oral contribution

The trace anomaly of dense matter, $\Delta \equiv 1/3 - P/\varepsilon$, defined in terms of the ratio of pressure $P$ to energy density $\varepsilon$, quantifies deviations from conformal symmetry and plays a central role in both the hydrodynamic response and gravitational equilibrium. While $\Delta(\varepsilon)$ has recently been inferred from neutron star observations, we report the first...

3. Nuclear response function in dense neutron matter

Daniele Poidomani (CEA)

5/28/26, 10:15 AM

Oral contribution

Neutrino physics is essential for understanding a wide range of astrophysical phenomena. In particular, neutrinos play a fundamental role throughout the entire collapse of a massive star—from the supernova explosion and the early evolution of compact stellar remnants to neutron star cooling and neutron star mergers.

To calculate the opacity of nuclear matter to neutrinos, we employ the...

18. Use of a machine learning algorithm to reduce the global computational time for a Bayesian analysis based on the AMD model

Silvia Piantelli (Istituto Nazionale di Fisica Nucleare)

5/28/26, 10:40 AM

Oral contribution

A Bayesian analysis aimed at tuning two parameters of the AMD model related to the dynamical cluster formation and the in-medium nucleon-nucleon cross section was performed. The adopted technique required to produce a huge number of time-consuming simulations varying the relevant model parameters. A very preliminary attempt at making the parameter grid more rarefied in order to reduce the...