Measurement of direct photon production at Tevatron fixed target energies

Details Measurement of direct photon production at Tevatron fixed target energies Measurement of direct photon production at Tevatron fixed target energies

2004-07-05

arxiv.org/abs/hep-ex/0407011v1

Phys.Rev.D70:092009,2004

Physics

High Energy Physics

High Energy Physics - Experiment

RevTeX4, 23 pages, 32 figures, submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.70.092009

Measurements of the production of high transverse momentum direct photons by a 515 GeV/c piminus beam and 530 and 800 GeV/c proton beams in interactions with beryllium and hydrogen targets are presented. The data span the kinematic ranges of 3.5 < p_T < 12 GeV/c in transverse momentum and 1.5 units in rapidity. The inclusive direct-photon cross sections are compared with next-to-leading-order perturbative QCD calculations and expectations based on a phenomenological parton-k_T model.

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