Abstract
The thermal QCD dilepton production rate is calculated at next-to-leading order in the strong coupling and at finite baryon chemical potential. The two-loop virtual photon self-energy is evaluated using finite temperature field theory and combined consistently with the self-energy in the Landau-Pomeranchuk-Migdal regime. We present new results for a dense baryonic plasma. The rates are then integrated using ()-dimensional fluid-dynamical simulations calibrated to reproduce hadronic experimental results obtained at the BNL Relativistic Heavy Ion Collider (RHIC) at energies ranging from those of the Beam Energy Scan to GeV. We elaborate on the ability of dileptons to relay information about the plasma baryonic content and temperature.
8 More- Received 20 November 2023
- Accepted 14 March 2024
DOI:https://doi.org/10.1103/PhysRevC.109.044915
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