New Limit for the Lepton-Family-Number Nonconserving Decayμ+→e+γ

Authors :: S. C. Wright
Y.K. Chen
Anton Empl
X.L. Tu
T. D. S. Stanislaus
C. C. H. Jui
R. Manweiler
E. B. Hughes
P. S. Cooper
R. E. Tribble
Gary E. Hogan
L. E. Piilonen
J. Szymanski
W. von Witsch
K.A. Lan
C. A. Gagliardi
M. Dzemidzic
R. E. Mischke
K.O.H. Ziock
M. A. Kroupa
K. M. Stantz
J. E. Knott
M. L. Brooks
L. A. Van Ausdeln
D. D. Koetke
E. V. Hungerford
M. D. Cooper
B. W. Mayes
Source :: Physical Review Letters. 83:1521-1524
Publication Year :: 1999
Publisher :: American Physical Society (APS), 1999.
Abstract: An experiment has been performed to search for the muon- and electron-number non-conserving decay mu+ to e+_gamma. The upper limit for the branching ratio to be GAMMA(mu+ to e+_gamma)/GAMMA(mu+ to e+_nu_nubar) < 1.2e-11 with 90% confidence.

Subjects :: Nuclear physics
Physics
Particle physics
Muon
Branching fraction
General Physics and Astronomy
Limit (mathematics)
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Lepton

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