The decay tau. -->. rho nu (and rho. -->. pi. eta nu. )

Conference · Wed Apr 01 04:00:00 EST 1987

OSTI ID:6214294

Stockhausen, W

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
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
DATA
DECAY
ELEMENTARY PARTICLES
ETA MESONS
EXPERIMENTAL DATA
FERMIONS
HADRONS
HEAVY LEPTONS
INFORMATION
LEPTONS
LIMITING VALUES
MASS SPECTRA
MASSLESS PARTICLES
MESONS
NEUTRINOS
NUMERICAL DATA
PARTICLE DECAY
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
RHO-765 RESONANCES
SPECTRA
TAU PARTICLES
WEAK PARTICLE DECAY