Direct photon production in p+p collisions at √s=200GeV at midrapidity

PHENIX Collaboration

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


The differential cross section for the production of direct photons in p+p collisions at √s=200GeV at midrapidity was measured in the PHENIX detector at the Relativistic Heavy Ion Collider. Inclusive direct photons were measured in the transverse momentum range from 5.5-25GeV/c, extending the range beyond previous measurements. Event structure was studied with an isolation criterion. Next-to-leading-order perturbative-quantum-chromodynamics calculations give a good description of the spectrum. When the cross section is expressed versus x T, the PHENIX data are seen to be in agreement with measurements from other experiments at different center-of-mass energies.

Original languageEnglish
Article number072008
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number7
StatePublished - 23 Oct 2012
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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