Mid-Rapidity Direct-Photon Production in p+p Collisions at sqrt(s) = 200 GeV

dc.creatorPHENIX Collaboration
dc.creatorAdler, S.
dc.date2005-02-02
dc.date.accessioned2026-07-07T11:58:01Z
dc.date.available2026-07-07T11:58:01Z
dc.descriptionA measurement of direct photons in p+p collisions at sqrt(s)=200 GeV is presented. A photon excess above background from pi^0 --> gamma+gamma, eta --> gamma+gamma, and other decays is observed in the transverse momentum range 5.5 < p_T < 7 GeV/c. The result is compared to a next-to-leading-order perturbative QCD calculation. Within errors, good agreement is found between the QCD calculation and the measured result.
dc.description330 authors, 7 pages text, RevTeX, 2 figures, 2 tables. Submitted to Physical Review D. 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
dc.identifierhttps://arxiv.org/abs/hep-ex/0502006
dc.identifierhttp://arxiv.org/abs/hep-ex/0502006
dc.identifierPhys.Rev.D71:071102,2005
dc.identifierdoi:10.1103/PhysRevD.71.071102
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206089
dc.subjectHigh Energy Physics - Experiment
dc.titleMid-Rapidity Direct-Photon Production in p+p Collisions at sqrt(s) = 200 GeV
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