Search for. mu. /sup +/. -->. e/sup +/. gamma. [Branching ratio upper limit]
Conference
·
OSTI ID:6417019
Using the Stopped Muon Channel at LAMPF to produce a surface muon beam, 2.3 x 10/sup 12/ muons were stopped in a 50 mg/cm/sup 2/ target. The solid angle-efficiency product of the detector for the rare decay ..mu../sup +/ ..-->.. e/sup +/..gamma.. was 1.2%. Hence, 3 x 10/sup 10/ ..mu../sup +/ decays were examined. There is no indication of any signal, the data being consistent with a small background of random electron and gamma coincidences. The new upper limit on the branching ratio is GAMMA(..mu../sup +/ ..-->.. e/sup +/..gamma..)/GAMMA(..mu../sup +/ ..-->.. e/sup +/..nu../sub e/..nu../sup -//sub mu/) < 2 x 10/sup -10/ with 90% confidence. 8 references.1
- Research Organization:
- Los Alamos Scientific Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6417019
- Report Number(s):
- LA-UR-78-2631; CONF-780769-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Upper limit for the decay. mu. /sup +/. -->. e/sup +/. gamma
Search for. mu. /sup +/. -->. e/sup +/. gamma
FURTHER SEARCH FOR THE DECAY $mu$$sup +$$Yields$e$sup +$+$gamma$
Journal Article
·
Sun Feb 25 19:00:00 EST 1979
· Phys. Rev. Lett.; (United States)
·
OSTI ID:6206641
Search for. mu. /sup +/. -->. e/sup +/. gamma
Journal Article
·
Mon May 31 20:00:00 EDT 1982
· Phys. Rev. D; (United States)
·
OSTI ID:5286168
FURTHER SEARCH FOR THE DECAY $mu$$sup +$$Yields$e$sup +$+$gamma$
Journal Article
·
Thu Apr 14 23:00:00 EST 1960
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4157211
Related Subjects
645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BRANCHING RATIO
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
FERMIONS
LEPTONS
LIMITING VALUES
MUONS
MUONS PLUS
PARTICLE DECAY
RADIATIVE DECAY
WEAK PARTICLE DECAY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BRANCHING RATIO
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
FERMIONS
LEPTONS
LIMITING VALUES
MUONS
MUONS PLUS
PARTICLE DECAY
RADIATIVE DECAY
WEAK PARTICLE DECAY