Direct experimental lower bound on the radiative lifetime of the muon neutrino

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.44.R6· OSTI ID:5665075

Krakauer, D A; Talaga, R L ^[1]; Allen, R C; Chen, H; Hausammann, R; Johnson, W A; Lee, W P; Lu, X; Mahler, H J; Wang, K C; Yao, H ^[2]; Bowles, T J; Burman, R L; Carlini, R D; Cochran, D R.F.; Doe, P J; Frank, J S; Potter, M E; Piasetzky, E; Sandberg, V D ^[3]

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1. Argonne National Laboratory, Argonne, Illinois 60439 (USA)
2. University of California, Irvine, California 92717 (USA)
3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)

A sensitive search for {nu}{sub {mu}} and {bar {nu}}{sub {mu}} decay into photons was performed in a high-intensity beam of neutrinos from {pi}{sup +} and {mu}{sup +} decay at rest. An upper limit of 68 possible {gamma}-ray events was established, leading to a lower bound on the radiative lifetime of the muon (anti)neutrino of {tau}/{ital m}{sub {nu}{mu}}{ge}15.4 sec/eV (90% c.l.). This result represents more than a factor of 100 improvement over previous direct laboratory searches.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• OSTI ID: 5665075
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 44:1; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
MUON NEUTRINOS
RADIATIVE DECAY
EXPERIMENTAL DATA
MEASURING METHODS
DATA
DECAY
ELEMENTARY PARTICLES
FERMIONS
INFORMATION
LEPTONS
MASSLESS PARTICLES
NEUTRINOS
NUMERICAL DATA
PARTICLE DECAY
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties