Published June 1978
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Properties of the tau lepton
Description
The measured properties of the tau lepton and its neutrino are reviewed. A constrained fit to the world data gives a tau branching fraction to an electron plus neutrinos (B/sub e/) of (17.4 +- 2.1)% and B/sub mu//B/sub e/ = 1.07 +- 0.17. New data on the tau → pi nu mode are in agreement with the expected branching fraction. There is evidence for the tau → A1 nu mode, but the A1 resonance cannot be conclusively established from the current data. The DELCO experiment establishes the tau mass to be 1782 /sup +2//sub -7/ MeV/c2 and the nu/sub tau/ mass to be less than 250 MeV/c2. It also excludes V + A as a tau - nu/sub tau/ coupling and strongly favors V - A
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.Files
10428585.pdf
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Additional details
Additional titles
- Augmented title (English)
- Review
Publishing Information
- Imprint Pagination
- 17 p.
- Report number
- SLAC-PUB--2138
Conference
- Title
- Neutrinos.
- Dates
- 28 Apr - 2 May 1978.
- Place
- West Lafayette, IN, USA.
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 10428585
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BRANCHING RATIO; COUPLING; LEPTONIC DECAY; LIFETIME; LIMITING VALUES; MASS; PARTICLE PROPERTIES; REVIEWS; SEMILEPTONIC DECAY; SPIN; TAU NEUTRINOS; TAU PARTICLES; WEAK HADRONIC DECAY
- Descriptors DEC
- ANGULAR MOMENTUM; BASIC INTERACTIONS; DECAY; DOCUMENT TYPES; ELEMENTARY PARTICLES; FERMIONS; HEAVY LEPTONS; INTERACTIONS; LEPTONS; MASSLESS PARTICLES; NEUTRINOS; PARTICLE DECAY; POSTULATED PARTICLES; WEAK INTERACTIONS; WEAK PARTICLE DECAY
Optional Information
- Secondary number(s)
- CONF-780453--12.