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A search for neutrino oscillations

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Zeitschrift für Physik C Particles and Fields

Abstract

We present here the final results of experiments searching for neutrino oscillations, carried out by the CHARM Collaboration. The data — taking took place in 1983. The first experiment was performed by exposing two detectors simultaneously to the CERN PS low energyv µ beam. In the second experiment the full CHARM detector was exposed to the wide-band horn-focusedv µ beam of the CERN SPS. Complete details of the experiments and data reduction are presented. No statistically significant signals for neutrino oscillations were observed. Our 90% CL limits in the appearance experiment (v µ→v e ) exclude Δm 2≧0.19 eV2 for complete mixing (sin22θ=1), and sin22θ≧0.008 for the region Δm 2≧30 eV2. These results, and the limits observed for (v µ→v x ) (disappearance of (v µ), are in agreement with those of most other experiments but exclude part of the region previously reported as a possible indication ofv µ→v e oscillations.

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Author information

Author notes

  1. G. Barbiellini

    Present address: Dipartimento di Fisica, Università di Trieste, Trieste, Italy

  2. D. Perret-Gallix

    Present address: LAPP, Annecy-le-Vieux, France

Authors and Affiliations

  1. NIKHEF, Amsterdam, The Netherlands

    F. Bergsma, J. Dorenbosch & C. Nieuwenhuis

  2. European Organization for Nuclear Research, CERN, CH-1211, Geneva 23, Switzerland

    J. V. Allaby, U. Amaldi, G. Barbiellini, A. Capone, Y. Eisenberg, W. Flegel, M. Jonker, L. Lanceri, M. Metcalf, J. Panman, D. Perret-Gallix, R. Plunkett, C. Santoni & K. Winter

  3. II. Institut für Experimentalphysik, Universität Hamburg, D-2000, Hamburg, Federal Republic of Germany

    I. Abt, J. Aspiazu, F. W. Büsser, H. Daumann, P. D. Gall, T. Hebbeker, F. Niebergall, P. Schütt & P. Stähelin

  4. Institute for Theoretical and Experimental Physics, SU-117259, Moscow, USSR

    P. Gorbunov, E. Grigoriev, V. Kaftanov, V. Khovansky & A. Rosanov

  5. Istituto Nazionale di Fisica Nucleare, I-00100, Rome, Italy

    L. Barone, B. Borgia, M. Diemoz, U. Dore, F. Ferroni, E. Longo, L. Luminari, P. Monacelli, F. de Notaristefani & E. Valente

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  1. F. Bergsma
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  2. J. Dorenbosch
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  3. C. Nieuwenhuis
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  4. J. V. Allaby
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  5. U. Amaldi
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  6. G. Barbiellini
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  7. A. Capone
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  8. Y. Eisenberg
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  9. W. Flegel
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  10. M. Jonker
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  11. L. Lanceri
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  12. M. Metcalf
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  13. J. Panman
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  14. D. Perret-Gallix
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  15. R. Plunkett
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  16. C. Santoni
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  17. K. Winter
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  18. I. Abt
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  19. J. Aspiazu
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  21. H. Daumann
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  31. A. Rosanov
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  32. L. Barone
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  33. B. Borgia
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  34. M. Diemoz
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  35. U. Dore
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  36. F. Ferroni
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  37. E. Longo
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  38. L. Luminari
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  39. P. Monacelli
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  40. F. de Notaristefani
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  41. E. Valente
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CHARM Collaboration

Additional information

On leave of absence from Weizmann Institute, Rehovoth, Israel

Supported by Bundesministerium für Forschung und Technologie, Bonn, FRG

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CHARM Collaboration., Bergsma, F., Dorenbosch, J. et al. A search for neutrino oscillations. Z. Phys. C - Particles and Fields 40, 171–192 (1988). https://doi.org/10.1007/BF01555880

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  • DOI: https://doi.org/10.1007/BF01555880

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