Evidence for the Decay tau- ---> tau-neutrino omega pi-
Nov, 19865 pages
Published in:
- Phys.Lett.B 185 (1987) 223
- Published: 1987
Report number:
- DESY-86-142
Experiments:
Citations per year
Abstract: (Elsevier)
Using the ARGUS detector at DORIS II, we have analyzed tau decays into π − π − π + π 0 ν τ . The branching ratio was determined to be (4.2±0.5±0.9)%. From a study of the three pion sub-system, we find evidence for the decay τ − → ωπ − ν τ with a branching ratio of (1.5±0.3±0.3)%. The ωπ − system is found to be predominantly in a J P =1 − state. There is no evidence for second-class axial-vector currents. The spectral function for the ωπ − final state is in agreement with a prediction based on CVC and σ e + e −→ ωπ 0 .- ELECTRON POSITRON: COLLIDING BEAMS
- COLLIDING BEAMS: ELECTRON POSITRON
- ELECTRON POSITRON: ANNIHILATION
- ANNIHILATION: ELECTRON POSITRON
- TAU-: ELECTROPRODUCTION
- ELECTROPRODUCTION: TAU-
- TAU-: SEMILEPTONIC DECAY
- SEMILEPTONIC DECAY: TAU-
- TAU-: BRANCHING RATIO
- MASS SPECTRUM
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