Properties of Thermal Photons at RHIC and LHC
R. Rapp, H. van Hees, M. He
TL;DR
This paper investigates the emission of thermal photons at RHIC and LHC, analyzing how different medium evolution models and emission rates influence photon production, including hadronic contributions and a speculative rate-upscaling scenario.
Contribution
It compares two medium evolution models and explores the impact of hadronic emission components and rate modifications on thermal photon spectra.
Findings
Different evolution models produce varying photon emission patterns.
Hadronic emission significantly affects the photon spectra.
Upscaling emission rates near the pseudo-critical region alters predicted photon yields.
Abstract
We study the emission characteristics of thermal photons at RHIC and LHC as affected by both the space-time evolution of the bulk medium and the thermal emission rates. For the former we compare the results of two evolution models (expanding fireball and hydrodynamics). For the latter, we detail the influence of hadronic emission components and study a speculative scenario by upscaling the default QGP and hadronic rates around the pseudo-critical region.
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