Inclusive Pi^0, Eta, and Direct Photon Production at High Transverse Momentum in P+p and D+Au Collisions at Sqrt(s_NN)

Inclusive Pi^0, Eta, and Direct Photon Production at High Transverse Momentum in P+p and D+Au Collisions at Sqrt(s_NN)
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Release: 2010
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We report a measurement of high-p{sub T} inclusive [pi]°, [eta], and direct photon production in p + p and d + Au collisions at √s{sub NN} = 200 GeV at midrapidity (0

High Transverse Momentum Direct Photon Production at Fermilab Fixed-Target Energies

High Transverse Momentum Direct Photon Production at Fermilab Fixed-Target Energies
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Total Pages: 324
Release: 2005
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This thesis describes a study of the production of high transverse momentum direct photons and [pi]0 mesons by proton beams at 530 and 800 GeV/c and [pi]- beams at 515 GeV/c incident on beryllium, copper, and liquid hydrogen targets. The data were collected by Fermilab experiment E706 during the 1990 and 1991-92 fixed target runs. The apparatus included a large, finely segmented lead and liquid argon electromagnetic calorimeter and a charged particle spectrometer featuring silicon strip detectors in the target region and proportional wire chambers and drift tubes downstream of a large aperture analysis magnet. The inclusive cross sections are presented as functions of transverse momentum and rapidity. The measurements are compared with next-to-leading order perturbative QCD calculations and to results from previous experiments.