Hydrodynamic view in the NICA energy range

TL;DR

This paper explores hydrodynamic models and novel dilepton sources in the NICA energy range, providing insights into quark-hadron phase transitions and electromagnetic emissions in nuclear collisions.

Contribution

It introduces a new dilepton source from a mixed quark-hadron phase and projects hybrid hydro-kinetic model results onto NICA and FAIR energy ranges.

Findings

Identification of quark-hadron bremsstrahlung as a dilepton source

Projection of model results onto NICA and FAIR energy ranges

Estimate of the $ ext{ππ} o ext{σ} o ext{γγ}$ process in nuclear collisions

Abstract

Results for penetrating probes treated within a hybrid hydro-kinetic model are projected onto the energy range covered by the NICA and FAIR projects. A new source of dileptons emitted from a mixed quark-hadron phase, quark-hadron bremsstrahlung, is proposed. An estimate for the $\pi\pi \to\sigma \to \gamma\gamma$ process in nuclear collisions is given.