The 132 pb-1 of data collected by ALEPH from 1991 to 1994 have been used to analyze η and ω production in τ decays. The following branching fractions have been measured: B(τ- → ντωh-) = (1.91 ± 0.07 ± 0.06) × 10-2, B(τ- → ντωh-π0) = (4.3 ± 0.6 ± 0.5) × 10-3, B(τ- → ντηK-) = (2.9-1.2+1.3 ± 0.7) × 10-4, B(τ- → ντηh-π0) = (1.8 ± 0.4 ± 0.2) × 10-3 and the 95% C.L. limit B(τ- → ντηπ-) < 6.2 × 10-4 has been obtained. The ωπ- and ηπ-π0 rates and dynamics are found in agreement with the predictions made from e+e- annihilation data with the help of isospin invariance (CVC).

Buskulic, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J., et al. (1997). A study of τ decays involving η and ω mesons. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 74(2), 263-273 [10.1007/s002880050387].

A study of τ decays involving η and ω mesons

CARPINELLI, Massimo;
1997

Abstract

The 132 pb-1 of data collected by ALEPH from 1991 to 1994 have been used to analyze η and ω production in τ decays. The following branching fractions have been measured: B(τ- → ντωh-) = (1.91 ± 0.07 ± 0.06) × 10-2, B(τ- → ντωh-π0) = (4.3 ± 0.6 ± 0.5) × 10-3, B(τ- → ντηK-) = (2.9-1.2+1.3 ± 0.7) × 10-4, B(τ- → ντηh-π0) = (1.8 ± 0.4 ± 0.2) × 10-3 and the 95% C.L. limit B(τ- → ντηπ-) < 6.2 × 10-4 has been obtained. The ωπ- and ηπ-π0 rates and dynamics are found in agreement with the predictions made from e+e- annihilation data with the help of isospin invariance (CVC).
Articolo in rivista - Articolo scientifico
CURRENTS; DETECTOR; LEPTON; PI
English
263
273
11
Buskulic, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J., et al. (1997). A study of τ decays involving η and ω mesons. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 74(2), 263-273 [10.1007/s002880050387].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390142
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