Skip to main content
Log in

Prompt neutrino production in a proton beam-dump experiment

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

In the interactions of 400 GeV/c protons with copper nuclei, a flux of prompt neutrinos is observed. The reactions produced by these neutrinos in our apparatus appear consistent with those of electron- and muon-neutrinos. The prompt neutrino fluxes are interpreted as being due to associated production and subsequent semileptonic decay of charmed hadrons. The prompt flux ratio\(\bar v_\mu /v_\mu = 0.46_{ - 0.16}^{ + 0.21} \) suggests a sizeable production of charmed baryons near the forward direction. The ratio of prompte +e + toµ +µ + event rates is 0.64 +0.22−0.15 , where unity is expected frome-μ universality.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. Alibran et al.: Phys. Lett.74B, 134 (1978)

    Google Scholar 

  2. T. Hansl et al.: Phys. Lett.74B, 139 (1978)

    Google Scholar 

  3. P.C. Bosetti et al.: Phys. Lett.74B, 143 (1978)

    Google Scholar 

  4. M. Holder et al.: Nucl. Instrum. Methods148, 235 (1978)

    Google Scholar 

  5. C.H. Albright et al.: Phys. Rev. D20, 2177 (1979)

    Google Scholar 

  6. P. Fritze et al.: Phys. Lett.96B, 427 (1980)

    Google Scholar 

  7. M. Jonker et al.: Phys. Lett.96B, 435 (1980)

    Google Scholar 

  8. M. Holder et al.: Phys. Lett.71B, 222 (1977)

    Google Scholar 

  9. H. Wachsmuth: preprint CERN-EP/79-125 (1979)

  10. H.W. Atherthon et al.: CERN 80-07 (1980)

  11. H. Abramowicz et al.: Experimental study of opposite-sign dimuons produced in neutrino and antineutrino interactions. Paper in preparation

  12. J.G.H. de Groot et al.: Phys. Lett.86B, 103 (1979)

    Google Scholar 

  13. B.C. Barish et al.: Proc. Int. Conf. on High-Energy Physics, Madison, Wisconsin, 1980 (eds. L. Durand and L. G. Pondrom) p. 257. New York: American Institute of Physics 1981

    Google Scholar 

  14. R. Blankenbecler, S.J. Brodsky: Phys. Rev.D 10, 2973 (1974)

    Google Scholar 

  15. R.T. Edwards et al.: Phys. Rev.D18, 76 (1978)

    Google Scholar 

  16. See, for example, A. De Rújula et al.: Nucl. Phys.B168, 54 (1980)

    Google Scholar 

  17. W.A. Bardeen et al.: Phys. Lett.76B, 580 (1978); and references cited therein

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Supported by the Bundesministerium für Forschung und Technologie, Bonn, FRG.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Abramowicz, H., de Groot, J.G.H., He, J.T. et al. Prompt neutrino production in a proton beam-dump experiment. Z. Phys. C - Particles and Fields 13, 179–189 (1982). https://doi.org/10.1007/BF01575770

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01575770

Keywords

Navigation