Measurement of direct photon production at Tevatron fixed target
  energies

A. Maul; A. D. Martin; A. D. Martin; B. Choudhary; B. Y. Oh; C. Bromberg; C. Johnstone; C. Lirakis; C. Yosef; D. Allspach; D. Garelick; D. Pellett; D. Skow; D. Striley; D. Stump; D. Weerasundara; D. E. Groom; E. Engels; E. Prebys; F. Lobkowicz; G. Corcella; G. Fanourakis; G. Ginther; G. Osborne; G. Sterman; J. Bacigalupi; J. Dunlea; J. Ftacnik; J. Huston; J. J. Whitmore; J. Kuehler; J. Mansour; J. Pumplin; K. Hartman; L. Apanasevich; L. de Barbaro; L. Sorrell; M. Begel; M. Diakonou; M. Glaubman; M. Glück; M. Zieliński; N. Varelas; N. A. McCubbin; P. Aurenche; P. Aurenche; P. Chang; P. Gutierrez; P. Lukens; P. Shepard; P. Slattery; R. Miller; R. Roser; R. Shivpuri; S. Blusk; S. Catani; S. M. Tripathi; T. Ferbel; T. Yasuda; V. Kapoor; V. Zutshi; W. Baker; W. DeSoi; W. Długosz; W. H. Chung; W. Toothacker

research

Measurement of direct photon production at Tevatron fixed target energies

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.Comment: RevTeX4, 23 pages, 32 figures, submitted to Phys. Rev.

Similar works

Full text

Available Versions

Crossref

Last time updated on 02/01/2020