Invariant cross section at √s = 28 GeV for coplanar high PT clusters selected by a hardware trigger

K. S. Nelson, M. Arenton, H. Chen, M. Corcoran, L. Cormell, R. Ditzler, M. Dris, A. R. Erwin, T. Fields, J. Fleischman, M. Harrison, M. A. Hasan, K. Johns, A. Kanofsky, W. Kononenko, C. Kuehn, H. Miettinen, C. Naudet, J. Rice, J. RobertsB. Robinson, W. Selove, G. Theodosiou, M. Thompson, B. Yost

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


In a 400 GeV/c fixed target experiment using a set of geometrical calorimeter triggers we have determined a cross section for pp collisions producing two high PT coplanar clusters. This cross section was determined without using jet-finding algorithms or appealing to QCD Monte Carlo calculations. Corrections to the data were made by studying hardware triggers designed for that purpose or using experimental data from e+e- colliders. The magnitude of the experimental cross section and the PT slope both agree reasonably well with theoretical QCD predictions for parton-parton scattering that combine non-scaling behavior with fits to recent data from ep, μp, and vp experiments.

Original languageEnglish (US)
Pages (from-to)1022-1036
Number of pages15
JournalNuclear Physics, Section B
Issue numberC
StatePublished - 1987

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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