Prompt Production of Neutrinos By 400 GeV Protons on Tungsten: First Results from Fermilab E613

  • R. C. Ball
  • S. Childress
  • C. T. Coffin
  • G. Conforto
  • M. B. Crisler
  • M. E. Duffy
  • G. K. Fanourakis
  • H. R. Gustafson
  • J. S. Hoftun
  • L. W. Jones
  • T. Y. Ling
  • M. J. Longo
  • R. J. Loveless
  • D. D. Reeder
  • T. J. Roberts
  • B. P. Roe
  • T. A. Romanowski
  • D. L. Schumann
  • E. S. Smith
  • J. T. Volk
  • E. Wang
Part of the Ettore Majorana International Science Series book series (volume 16)

Abstract

Data from Experiment E613, a Fermilab experiment to study prompt neutrino production, are now being analyzed. The experiment was specifically designed to study neutrinos from the decay of charmed (or other massive) particles. The detector, an 80 metric ton (fiducial volume) lead-scintillator calorimeter, is approximately 60 m from the target. As a result, the angular acceptance extends up to 40 mrad. We have run with a full density tungsten and 1/3 density tungsten target. We report on a sample of 938 neutrino 1μ events. If we parametrize the DD \( D\bar D \) production cross-section as proportional to (1-∣x∣)3 e-2p⊥ we find that our prompt neutrino 1μ events if interpreted as due to \( D\bar D \) production imply \( \sigma D\bar D \)17.2±3.2 (stat.) ±3.4 (sys) μb. For Ev greater than 25 GeV, the \( \bar \nu \) flux = \( \bar \nu \) flux =.8±.35 and the \( \bar \nu \) flux is 2.9σ from 0.

Keywords

Attenuation Tungsten Calorimeter Beryllium 

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References

  1. 1.
    P. Fritze et al. Phys. Lett. 96B(1980).Google Scholar
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    J. Leveille, private communication.Google Scholar
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    M. Jonker et al. Phys. Lett. 96B, 435 (1980).Google Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • R. C. Ball
    • 2
  • S. Childress
    • 4
  • C. T. Coffin
    • 2
  • G. Conforto
    • 1
    • 2
  • M. B. Crisler
    • 3
  • M. E. Duffy
    • 5
  • G. K. Fanourakis
    • 5
  • H. R. Gustafson
    • 2
  • J. S. Hoftun
    • 3
  • L. W. Jones
    • 2
  • T. Y. Ling
    • 3
  • M. J. Longo
    • 2
  • R. J. Loveless
    • 5
  • D. D. Reeder
    • 5
  • T. J. Roberts
    • 2
  • B. P. Roe
    • 2
  • T. A. Romanowski
    • 3
  • D. L. Schumann
    • 5
  • E. S. Smith
    • 5
  • J. T. Volk
    • 3
  • E. Wang
    • 2
  1. 1.Istituto Nazionale di Fisica NucleareFirenzeItaly
  2. 2.Department of PhysicsUniversity of MichiganAnn ArborUSA
  3. 3.Department of PhysicsOhio State UniversityColumbusUSA
  4. 4.Department of PhysicsUniversity of WashingtonSeattleUSA
  5. 5.Department of PhysicsUniversity of WisconsinMadisonUSA

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