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Measurement of direct photon production at Tevatron fixed target energies

Fermilab E706 Collaboration·L. Apanasevich
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Abstract

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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Fermilab E706 Collaboration, L. Apanasevich. 2004-07-05. Measurement of direct photon production at Tevatron fixed target energies. https://doi.org/10.1103/physrevd.70.092009

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