The decay tau. -->. rho nu (and rho. -->. pi. eta nu. )
Conference
·
OSTI ID:6214294
Motivated by the question of missing exclusive branching fractions in tau decays, mostly suspected to be in one prong decays with neutrals, we have studied the decay tau ..-->.. rho nu in tau pair production by e/sup +/e/sup -/ annihilation at ..sqrt..s = 3.77 GeV. The branching fraction is measured to be B(tau ..-->.. rho nu) = (23.0 +- 1.3 +- 1.7)% consistent with known measurements and not offering a solution to the branching ratio question. No eta signal in the ..gamma gamma.. mass spectrum pointing to a decay tau ..-->.. eta ..pi.. nu is obvious. An upper limit on this branching fraction is given.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (USA)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 6214294
- Report Number(s):
- SLAC-PUB-4313; CONF-870390-6; ON: DE87011592
- Resource Relation:
- Conference: 22. Recontres de Moriond: electroweak interactions and unified theories conference, Les Arcs, France, 8 Mar 1987; Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
TAU PARTICLES
WEAK PARTICLE DECAY
BRANCHING RATIO
ETA MESONS
EXPERIMENTAL DATA
LIMITING VALUES
MASS SPECTRA
NEUTRINOS
PIONS
RHO-765 RESONANCES
BOSONS
DATA
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY LEPTONS
INFORMATION
LEPTONS
MASSLESS PARTICLES
MESONS
NUMERICAL DATA
PARTICLE DECAY
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SPECTRA
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties
TAU PARTICLES
WEAK PARTICLE DECAY
BRANCHING RATIO
ETA MESONS
EXPERIMENTAL DATA
LIMITING VALUES
MASS SPECTRA
NEUTRINOS
PIONS
RHO-765 RESONANCES
BOSONS
DATA
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY LEPTONS
INFORMATION
LEPTONS
MASSLESS PARTICLES
MESONS
NUMERICAL DATA
PARTICLE DECAY
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SPECTRA
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties