Speaker
Description
We study the thermodynamics of hadronic matter using the hadron
resonance gas model where the repulsive interactions between baryons
are modeled using the mean field approach.
We have shown [1] that repulsive interactions are especially important
when considering the higher order fluctuations. We now extend the
treatment of [1] to cover not only ground state baryons but heavier
resonances too, include the resonance states predicted by lattice
calculations and relativistic quark models. We evaluate both the
equation of state and the higher order fluctuations and correlations
of baryon number and strangenss, and compare the results with the most
recent lattice results. After fixing the magnitude of nucleon-nucleon
repulsion from the nucleon-nucleon scattering phase shift, we study
how different repulsion between ground state baryons and resonances on
one hand, and between strange and non-strange baryons on the other,
affect the EoS and fluctuations.
In fluid dynamical and hydrid calculations such a a constrained
extension of conventional hadron resonace gas model is important for
consistent matching of fluid with lattice QCD EoS to hadronic
ensembles.
[1] Huovinen and Petreczky, arXiv:1708.00879
| Content type | Theory |
|---|---|
| Centralised submission by Collaboration | Presenter name will be specified later |
