Direct Photon Production at RHIC and LHC-energies: Measured Data Versus a Model

TL;DR

This paper compares a non-standard theoretical model's predictions with experimental data on direct photon production in various high-energy nuclear collisions at RHIC and LHC, finding fair agreement and modest consistency with standard models.

Contribution

It introduces a non-standard framework for modeling direct photon production and compares its predictions with experimental data across different collision systems and energies.

Findings

Model results show fair agreement with measured data.

Predictions are modestly consistent with standard framework results.

The approach provides an alternative perspective on photon production phenomena.

Abstract

We attempt, in this paper, to deal with the direct photon production phenomena in $p+p$, $d+Au$ and $Au+Au$ collisions at RHIC energy, $\sqrt{s_{NN}}$ = 200 GeV and in $Pb+Pb$-collisions at LHC energy, $\sqrt{s_{NN}}$ = 2.76 TeV on the basis of a non-standard framework outlined in the text. Comparisons of the model-based results with the measured data on some observables reveal fair agreement; and they are modestly consistent with the results obtained by some other models of `Standard' framework.