APS » PROLA » Phys. Rev. D » Volume 47 » Issue 3

Phys. Rev. D 47, 811 - 829 (1993)

Limits on neutrino oscillations from ν̅ e appearance
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S. J. Freedman *, B. K. Fujikawa *, J. Napolitano †, and J. E. Nelson
Argonne National Laboratory, Argonne, Illinois 60439

R. D. McKeown
California Institute of Technology, Pasadena, California 91125

K. T. Lesko
Lawrence Berkeley Laboratory, Berkeley, California 94720

J. B. Donahue, G. T. Garvey, and V. D. Sandberg
Los Alamos National Laboratory, Los Alamos, New Mexico 87545

W. C. Choi ‡, A. Fazely §, R. L. Imlay, and W. J. Metcalf
Louisiana State University, Baton Rouge, Louisiana 70803

L. S. Durkin, R. W. Harper **, T. Y. Ling, J. W. Mitchell ††, T. A. Romanowski, E. S. Smith ††, and M. Timko ‡‡
The Ohio State University, Columbus Ohio 43210

Received 22 July 1992

A 20-ton neutrino detector located near the Los Alamos Meson Physics Facility beam stop is used search for ν̅ e generated via neutrino oscillations from any of the three neutrino types, νμ, ν̅ μ, and νe, which radiate from the beam stop. The analysis of three years of data provides limits on the oscillation modes ν̅ μ→ν̅ e, νe→ν̅ e, and νμ→ν̅ e, and the lepton-number-violating decay process μ+→e++ν̅ e+νμ. The 90%-confidence-level limits for ν̅ μ→ν̅ e oscillations are δm2≤0.14 eV2 for maximal mixing, and sin22θ≤0.024 for large δm2.


©1993 The American Physical Society

URL: http://link.aps.org/abstract/PRD/v47/p811
DOI: 10.1103/PhysRevD.47.811
PACS: 12.15.Ff, 14.60.Gh

* Present address: Physics Department and Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720.
† Present address: Rensselaer Polytechnic Institute, Troy, NY 12180-3590.
‡ Present address: University of Alberta, Edmonton, Alberta, Canada T6G 2J1.
§ Present address: Southern University, Baton Rouge, LA 70813.
** Present address: EG&G, Los Alamos, NM 87544.
†† Present address: McGill University, Montreal, Quebec, Canada H3A2T8.
‡‡ Present address: Tufts University, Medford, MA 02155.

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