Zeitschrift für Physik C Particles and Fields

, Volume 63, Issue 3, pp 409–416 | Cite as

A new experimental limit on neutron-antineutron oscillations

  • M. Baldo-Ceolin
  • P. Benetti
  • T. Bitter
  • F. Bobisut
  • E. Calligarich
  • R. Dolfini
  • D. Dubbers
  • P. El-Muzeini
  • M. Genoni
  • D. Gibin
  • A. Gigli Berzolari
  • K. Gobrecht
  • A. Guglielmi
  • J. Last
  • M. Laveder
  • W. Lippert
  • F. Mattioli
  • F. Mauri
  • M. Mezzetto
  • C. Montanari
  • A. Piazzoli
  • G. Puglierin
  • A. Rappoldi
  • G. L. Raselli
  • D. Scannicchio
  • A. Sconza
  • M. Vascon
  • L. Visentin
Experimental Physics

Abstract

The experimental search for neutron-antineutron oscillations has been completed at the ILL high flux reactor at Grenoble. A neutron beam of intensity 1011n s−1 was propagated for a timet≅0.1 s in vacuum in a region shielded against the external magnetic field. No antineutron was detected in 2.4·107 s running time. The lower limit\(\tau _{n\bar n} \mathbin{\lower.3ex\hbox{$\buildrel>\over{\smash{\scriptstyle=}\vphantom{_x}}$}} 0.86 \cdot 10^8 \) s for\(n\bar n\) transitions was established at 90% C.L.

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • M. Baldo-Ceolin
    • 3
  • P. Benetti
    • 4
  • T. Bitter
    • 1
  • F. Bobisut
    • 3
  • E. Calligarich
    • 4
  • R. Dolfini
    • 4
  • D. Dubbers
    • 1
  • P. El-Muzeini
    • 1
  • M. Genoni
    • 4
  • D. Gibin
    • 3
  • A. Gigli Berzolari
    • 4
  • K. Gobrecht
    • 2
  • A. Guglielmi
    • 2
  • J. Last
    • 2
  • M. Laveder
    • 3
  • W. Lippert
    • 1
  • F. Mattioli
    • 3
  • F. Mauri
    • 4
  • M. Mezzetto
    • 3
  • C. Montanari
    • 4
  • A. Piazzoli
    • 4
  • G. Puglierin
    • 3
  • A. Rappoldi
    • 4
  • G. L. Raselli
    • 4
  • D. Scannicchio
    • 4
  • A. Sconza
    • 3
  • M. Vascon
    • 3
  • L. Visentin
    • 3
  1. 1.Physikalisches InstitutUniversity of HeidelbergHeidelbergGermany
  2. 2.Institut Max von Laue-Paul Langevin (ILL)GrenobleFrance
  3. 3.Dipartimento di Fisica “G. Galilei”University of Padova and I.N.F.N.PadovaItaly
  4. 4.Dipartimento di Fisica Nucleare e TeoricaUniversity of Pavia and I.N.F.N.PaviaItaly

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