Direct photon production at the CERN ISR

A. L.S. Angelis, G. Basini, H. J. Besch, R. E. Breedon, L. Camilleri, T. J. Chapin, R. L. Cool, P. T. Cox, C. von Gagern, C. Grosso-Pilcher, D. S. Hanna, B. M. Humphries, J. T. Linnemann, C. Newman-Holmes, R. B. Nickerson, B. S. Nilsen, B. G. Pope, S. H. Pordes, K. J. Powell, R. W. RusackC. W. Salgado, A. M. Segar, S. R. Stampke, M. J. Tannenbaum, J. M. Yelton

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

A measurement of direct photon production in pp collisions at a center of mass energy ∝s=63 GeV is reported. Arrays of lead-glass calorimeters and multiwire proportional chambers were used as photon detectors. Data are presented in the transverse momentum range from 4.5 to 10 GeV/c and compared with QCD predictions. The event structure of this sample is compared with that of a set dominated by high transverse momentum π O ́'s.

Original languageEnglish (US)
Pages (from-to)541-568
Number of pages28
JournalNuclear Physics, Section B
Volume327
Issue number3
DOIs
StatePublished - Dec 4 1989

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