A measurement of the production of massive e+e- pairs in proton-proton collisions at √s = 62.4 GeV

A. L.S. Angelis, H. J. Besch, B. J. Blumenfeld, L. Camilleri, T. J. Chapin, R. L. Cool, C. del Papa, L. Di Lella, Z. Dimčovski, R. J. Hollebeek, L. M. Lederman, D. A. Levinthal, J. T. Linnemann, C. Newman, N. Phinney, B. G. Pope, S. H. Pordes, A. F. Rothenberg, R. W. Rusack, A. M. SegarJ. Singh-Sidhu, A. M. Smith, M. J. Tannenbaum, R. A. Vidal, J. S. Wallace-Hadrill, J. M. Yelton, K. K. Young

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Abstract

An apparatus consisting of a superconducting solenoid magnet, cylindrical drift-chambers, and two arrays of lead-glass Čerenkov counters has been used at the CERN ISR to study the production of e+e- pairs of invariant mass above 6.5 GeV/c2. Cross sections for the continuum and the Υ{hooked} family of resonances are presented, as well as the mean transverse momentum 〈pT〉 of the electron-positron pairs in the continuum and resonance region.

Original languageEnglish (US)
Pages (from-to)398-402
Number of pages5
JournalPhysics Letters B
Volume87
Issue number4
DOIs
StatePublished - Nov 19 1979
Externally publishedYes

Bibliographical note

Funding Information:
The production of massive electron-positron pairs in proton-proton collisions has been measured at a centre-of-mass energy (x/~) of 62.4 GeV at the CERN ISR as part of a general study of high transverse mo- 1 Present address: Physics Dept., The Johns Hopkins Universi-ty, Baltimore, MD, USA. 2 Present address: University of Skopje, Macedonia, Yugoslavia. a Present address: SLAC, Stanford, CA, USA. 4 Present address: FNAL, Batavia, IL, USA. s Present address: Physics Dept., Princeton University, Prince-ton, N J, USA. 6 Present address: Physics Dept., University of Manchester, UK. 7 Permanent address: Physics Dept., University of Washington, Seattle, WA, USA. 8 Research'supported in part by the National Science Founda-tion. 9 Research supported in part by the Deparment of Energy.

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