Phys. Rev. Lett. 68, 2584 - 2587 (1992)
Direct photon production at high pT in π-Be and pBe collisions at 500 GeV/c
G. Alverson et al.
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G. Alverson, W. F. Baker, G. Ballocchi, R. Benson, D. Berg, S. Blusk, C. Bromberg, D. Brown, D. Carey, T. Chand, C. Chandlee, B. C. Choudhary, W. H. Chung, L. de Barbaro, W. DeSoi, W. Długosz, J. Dunlea, S. Easo, E. Engels, Jr., W. Faissler, G. Fanourakis, T. Ferbel, D. Garelick, G. Ginther, G. Glass, M. Glaubman, P. Gutierrez, K. Hartman, J. Huston, C. Johnstone, V. Kapoor, I. Kourbanis, A. Lanaro, C. Lirakis, F. Lobkowicz, P. Lukens, S. Mani, A. Maul, J. Mansour, R. Miller, C. A. Nelson, Jr., B. Oh, D. Orris, E. Pothier, E. Prebys, B. M. Rajaram, R. Roser, K. Ruddick, P. Shepard, R. K. Shivpuri, A. Sinanidis, D. Skow, P. Slattery, L. Sorrell, W. Toothacker, N. Varelas, D. Weerasundara, J. Whitmore, G. Wu, T. Yasuda, C. Yosef, and M. Zieliński University of California–Davis, Davis, California 95616
University of Delhi, Delhi 11 00 07, India
Fermi National Accelerator Laboratory, Batavia, Illinois 60510
Michigan State University, East Lansing, Michigan 48824
University of Minnestota, Minneapolis, Minneasota 55455
Northeastern University, Boston, Massachusetts 02115
University of Oklahoma, Normal, Oklahoma 73109
Pennsylvania State University, University Park, Pennsylvania 16802
University of Pittsburgh, Pittsburgh, Pennsylvania 15260
University of Rochester, Rochester, New York 14627
Received 16 August 1991
We report new measurements of inclusive direct photon production at high transverse momenta (pT) for π- and p interactions on Be at 500 GeV/c. The yields as a function of pT and rapidity (y) are in good agreement with expectations from next-to-leading-log QCD calculations employing recently extracted quark and gluon structure functions.
©1992 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v68/p2584
DOI: 10.1103/PhysRevLett.68.2584
PACS: 13.85.Qk, 12.38.Qk, 25.40.Ve, 25.80.Ls
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