Zeitschrift für Physik C Particles and Fields

, Volume 68, Issue 1, pp 47–64

Low-mass lepton-pair production in p-Be collisions at 450 GeV/c

Authors

  • T. Åkesson
    • CERN
  • S. Almehed
    • University of Lund
  • A. L. S. Angelis
    • University College London
  • J. Antos
    • CERN
  • H. Atherton
    • CERN
  • P. Aubry
    • University of Montreal
  • H. W. Bartels
    • University of Heidelberg
  • G. Beaudoin
    • University of Montreal
  • J. M. Beaulieu
    • University of Montreal
  • H. Beker
    • CERN
  • O. Benary
    • University of Tel Aviv
  • D. Bettoni
    • CERN
  • V. Bisi
    • University of Turin and INFN
  • I. Blevis
    • CERN
  • H. Bøggild
    • CERN
  • W. Cleland
    • University of Pittsburgh
  • M. Clemen
    • University of Pittsburgh
  • B. Collick
    • University of Pittsburgh
  • F. Corriveau
    • McGill University
  • S. Dagan
    • University of Tel Aviv
  • K. Dederichs
    • CERN
  • P. Depommier
    • University of Montreal
  • N. DiGiacomo
    • Los Alamos National Laboratory
  • S. DiLiberto
    • University of Rome ‘La Sapienza’ and INFN
  • J. R. Dodd
    • University College London
  • B. Dolgoshein
    • Institute of Physics and Engineering
  • A. Drees
    • University of Heidelberg
  • S. Eidelman
    • Institute of Nuclear Physics
  • H. En'yo
    • CERN
  • B. Erlandsson
    • University of Stockholm
  • M. J. Esten
    • University College London
  • C. W. Fabjan
    • CERN
  • P. Fischer
    • University of Heidelberg
  • A. Gaidot
    • DAPNIACE Saclay
  • F. Gibrat-Debu
    • DAPNIACE Saclay
  • P. Giubellino
    • University of Turin and INFN
  • P. Glässel
    • University of Heidelberg
  • U. Goerlach
    • CERN
  • Y. Golubkov
    • Institute of Physics and Engineering
  • R. Haglund
    • University of Lund
  • L. A. Hamel
    • McGill University
  • H. van Hecke
    • Los Alamos National Laboratory
  • V. Hedberg
    • CERN
  • R. Heifetz
    • University of Tel Aviv
  • A. Holscher
    • University of Heidelberg
  • B. Jacak
    • Los Alamos National Laboratory
  • G. Jarlskog
    • University of Lund
  • S. Johannson
    • University of Lund
  • H. Kraner
    • Brookhaven National Laboratory
  • V. Kroh
    • University of Heidelberg
  • F. Lamarche
    • McGill University
  • C. Leroy
    • McGill University
  • D. Lissauer
    • Brookhaven National Laboratory
  • G. London
    • DAPNIACE Saclay
  • B. Lorstad
    • University of Lund
  • A. Lounis
    • University of Montreal
  • F. Martelli
    • University of Turin and INFN
  • A. Marzari-Chiesa
    • University of Turin and INFN
  • M. Masera
    • University of Turin and INFN
  • M. A. Mazzoni
    • CERN
  • E. Mazzucato
    • McGill University
  • M. L. McCubbin
    • University College London
  • N. A. McCubbin
    • Rutherford Appleton Laboratory
  • P. McGaughey
    • Los Alamos National Laboratory
  • F. Meddi
    • University of Rome ‘La Sapienza’ and INFN
  • U. Mjörnmark
    • University of Lund
  • M. T. Muciaccia
    • University of Bari and INFN
  • S. Muraviev
    • Lebedev Institute of Physics
  • M. Murray
    • University of Pittsburgh
  • M. Neubert
    • University of Heidelberg
  • P. Nevski
    • Institute of Physics and Engineering
  • S. Nilsson
    • University of Stockholm
  • L. Olsen
    • Brookhaven National Laboratory
  • Y. Oren
    • University of Tel Aviv
  • J. P. Pansart
    • DAPNIACE Saclay
  • Y. M. Park
    • University of Pittsburgh
  • A. Pfeiffer
    • University of Heidelberg
  • F. Piuz
    • CERN
  • V. Polychronakos
    • Brookhaven National Laboratory
  • P. Pomianowski
    • University of Pittsburgh
  • G. Poulard
    • CERN
  • M. Price
    • CERN
  • D. Rahm
    • Brookhaven National Laboratory
  • L. Ramello
    • University of Turin and INFN
  • L. Riccati
    • University of Turin and INFN
  • G. Romano
    • University of Salerno and INFN
  • G. Rosa
    • University of Rome ‘La Sapienza’ and INFN
  • L. Sandor
    • CERN
  • J. Schukraft
    • CERN
  • M. Sekimoto
    • CERN
  • M. Seman
    • CERN
  • A. Shikonian
    • Lebedev Institute of Physics
  • A. Shmeleva
    • Lebedev Institute of Physics
  • V. Sidorov
    • Institute of Nuclear Physics
  • S. Simone
    • University of Bari and INFN
  • Y. Sirois
    • McGill University
  • H. Sletten
    • CERN
  • S. Smirnov
    • Institute of Physics and Engineering
  • W. Sondheim
    • Los Alamos National Laboratory
  • H. J. Specht
    • University of Heidelberg
  • E. Stern
    • University of Pittsburgh
  • I. Stumer
    • Brookhaven National Laboratory
  • A. Sumarokov
    • Institute of Physics and Engineering
  • J. W. Sunier
    • Los Alamos National Laboratory
  • V. Tcherniatin
    • Institute of Physics and Engineering
  • J. Thompson
    • University of Pittsburgh
  • V. Tikhomirov
    • Lebedev Institute of Physics
  • A. Vanyashin
    • Institute of Physics and Engineering
  • G. Vasseur
    • DAPNIACE Saclay
  • R. J. Veenhof
    • CERN
  • R. Wigmans
    • CERN
  • W. J. Willis
    • CERN
  • P. Yepes
    • McGill University
Article

DOI: 10.1007/BF01579804

Cite this article as:
Åkesson, T., Almehed, S., Angelis, A.L.S. et al. Z. Phys. C - Particles and Fields (1995) 68: 47. doi:10.1007/BF01579804

Abstract

We report on the production of low-mass electron pairs and muon pairs in p-Be collisions at 450 GeV/c at the CERN SPS. For both electron and muon pairs the low-mass spectrum can be explained satisfactorily by lepton pairs from hadronic decays, and there is no need to invoke any “unconventional” source. The normalisation of the major hadronic sources is set by the data. The upper limit, at 90% confidence level, on any new source of lepton pairs is ∼20% of the hadronic decay contribution for muons, and ∼40% for electrons.

Copyright information

© Springer-Verlag 1995