English

Electromagnetic radiation from Quark-Gluon Plasma at finite baryon density

Nuclear Theory 2025-09-04 v1

Abstract

Using the Bayesian calibrated iEBE-MUSIC framework, we compute the production of electromagnetic radiation from hot hadronic matter at finite baryon density. Results for thermal photon and thermal dilepton yields are obtained by folding in-medium emission rates with posterior-sampled backgrounds evolved hydrodynamically. We consider different photon sources and analyze the collision-energy dependence of the thermal-to-prompt photon ratio. The sensitivity of the dilepton spectra to the pre-equilibrium stage is explored by considering different initialization procedures. Finally, we examine the impact on dilepton spectra of choosing parameter sets stemming from different Bayesian data analyses.

Keywords

Cite

@article{arxiv.2509.03289,
  title  = {Electromagnetic radiation from Quark-Gluon Plasma at finite baryon density},
  author = {Xiang-Yu Wu and Charles Gale and Sangyong Jeon and Jean-François Paquet and Björn Schenke and Chun Shen},
  journal= {arXiv preprint arXiv:2509.03289},
  year   = {2025}
}

Comments

4 pages, 2 figures, proceedings for Quark Matter 2025 conference