2006/09/19 by PHENIX Collaboration, Stephen Adler, S. Afanasiev +99 · 2 citations
Physics and Astronomy · #Collider #High-Energy Particle Collisions Research #Jet (fluid) #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Parton #Perturbative QCD #Photon #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #hep-ex
paper · pdf · doi:10.1103/physrevlett.98.012002
published as Phys.Rev.Lett.98:012002,2007 · 330 authors, 6 pages text, 3 figures, one table. Submitted to Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
arxiv created 2006/09/19 · openalex publication_date 2007/01/05 · arxiv updated 2009/12/01 · openalex created_date 2017/04/07 · openalex updated_date 2026/08/05
Cross sections for midrapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for transverse momenta of 3 < pT < 16 GeV/c. Next-to-leading order perturbative QCD (pQCD) describes the data well for pT >5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for pT >7 GeV/c.