Measurement of direct photon production at Tevatron fixed target energies

Preprint

5 July 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0407011

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.

Keywords

TRANSVERSE MOMENTUM
PHOTON PRODUCTION
TARGET ENERGIES
TEVATRON FIXED
DIRECT PHOTON
HYDROGEN
GEV/C
QCD

All Related Versions

Version 1, 2004-07-05, ArXiv
Published version: Physical Review D, 70 (9), 092009.

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