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Results from the Fréjus experiment on nucleon decay modes with charged leptons

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Zeitschrift für Physik C Particles and Fields

Abstract

Lower limits on the nucleon lifetime in channels containing at least one positron or muon are given. The analysis is based on 4 years of data taking with the Fréjus detector. Various approaches to determine the background from atmospheric neutrinos are discussed and two different nuclear models are used in event simulations. The limits obtained range from 1031 years forp→e + K *0 to 1.5·1032 years forp→e + K *0 to 1.5·1032 years forp→µ + γ.

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Author notes

  1. C. Longuemare

    Present address: L.P.C., Université de Caen, F-14021, Caen, France

  2. C. Paulot

    Present address: Laboratoire GANIL, F-14021, Caen, France

  3. C. Arpesella

    Present address: Istituto di Fisica, Universitá di Milano, I-20133, Milano, Italy

  4. J. Becker

    Present address: Fakultät für Physik, Universität Freiburg, Germany

  5. M. Schubnell

    Present address: University of Michigan, 48109-1120, Ann Arbor, Michigan, USA

  6. P. Wintgen

    Present address: Fisher Controls GmbH, Solingen, Germany

Authors and Affiliations

  1. I. Physikalisches Institut der RWTH Aachen, W-5100, Aachen, Germany

    Ch. Berger, M. Fröhlich, H. Mönch, R. Nisius, F. Raupach & P. Schleper

  2. Laboratoire de l'Accélérateur Linéaire, Centre d'Orsay, Bâtiment 200, F-91405, Orsay, France

    Y. Benadjal, D. Blum, C. Bourdarios, B. Dudelzak, P. Eschstruth, S. Jullian, D. Lalanne, F. Laplanche, C. Longuemare, C. Paulot, O. Perdereau, Ph. Roy & G. Szklarz

  3. LPNHE-Ecole Polytechnique, Route de Saclay, F-91128, Plaiseau, France

    L. Behr, B. Degrange, U. Nguyen-Khac & S. Tisserant

  4. DPhPE, CEN-Saclay, F-91191, Gif-sur-Yvette Cedex, France

    C. Arpesella, P. Bareyre, R. Barloutaud, A. Borg, G. Chardin, J. Ernwein, J. F. Glicenstein, L. Mosca & L. Moscoso

  5. Bergische Universität-Gesamthochschule Wuppertal, W-5600, Wuppertal, Germany

    J. Becker, K. H. Becker, H. J. Daum, B. Jacobi, B. Kuznik, J. Löffler, H. Meyer, R. Möller, M. Schubnell, Y. Wei & P. Wintgen

Authors
  1. Ch. Berger
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  2. M. Fröhlich
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  33. J. Becker
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  34. K. H. Becker
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  35. H. J. Daum
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  40. R. Möller
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  41. M. Schubnell
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  42. Y. Wei
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  43. P. Wintgen
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Consortia

Fréjus Collaboration

Additional information

Supported by the BMFT, FRG, under contract number 55AC14P

Supported by the BMFT, FRG, under contract number 55WT84P

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Fréjus Collaboration., Berger, C., Fröhlich, M. et al. Results from the Fréjus experiment on nucleon decay modes with charged leptons. Z. Phys. C - Particles and Fields 50, 385–394 (1991). https://doi.org/10.1007/BF01551450

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  • DOI: https://doi.org/10.1007/BF01551450

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