Direct Photon Measurements at PHENIX

2012/07/31 by Baldo Sahlmueller
Mathematics · Physics and Astronomy · #Algorithm #High-Energy Particle Collisions Research #Mathematics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #State (computer science) #hep-ex #nucl-ex

paper · pdf · doi:10.1016/j.nuclphysa.2012.12.086

2 pages, 2 figures, to appear in the proceedings of Hard Probes 2012

arxiv created 2012/10/21 · openalex publication_date 2013/07/23 · arxiv updated 2019/08/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

PHENIX has measured direct photons in p+p and Au+Au collisions at sqrts_NN=200 GeV. The p+p measurement is in good agreement with pQCD expectations. The nuclear modification factor in Au+Au is found to be consistent with unity for all centralities, and is compared to theoretical models. The data are found in agreement with models that take into account initial state modifications, as well as with those that account also for final state modifications.

Citations

• Inclusive prompt photon production in nuclear collisions at RHIC and LHC
• Electromagnetic radiation from nuclear collisions at ultrarelativistic energies