From a sample of about 75000 τ decays identified with the ALEPH detector, K0 production in 1-prong hadronic decays is investigated by tagging the KL 0 component in a hadronic calorimeter. Results are given for the final states ντh-K0 and ντh-π0K0 where the h- is separated into π and K contributions by means of the dE/dx measurement in in the central detector. The resulting branching ratios are: (Bτ → ντπ-K0) = (0.88±0.14±0.09)%, (Bτ → ντK-K0) = (0.29±0.12±0.03)%, (Bτ → ντπ-π0K0) = (0.33±0.14±0.07)% aand (Bτ → ντK-π0K0) = (0.05±0.05±0.01)%. The K* decay rate in the K0π channel agrees with that in the Kπ0 mode: the combined value for the branching ratio is (Bτ → ντK*-) = (1.45±0.13±0.11)%.

Buskulic, D., Casper, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., et al. (1994). K0 production in one-prong τ decays. PHYSICS LETTERS. SECTION B, 332(1-2), 219-227 [10.1016/0370-2693(94)90882-6].

K0 production in one-prong τ decays

CARPINELLI, Massimo;
1994

Abstract

From a sample of about 75000 τ decays identified with the ALEPH detector, K0 production in 1-prong hadronic decays is investigated by tagging the KL 0 component in a hadronic calorimeter. Results are given for the final states ντh-K0 and ντh-π0K0 where the h- is separated into π and K contributions by means of the dE/dx measurement in in the central detector. The resulting branching ratios are: (Bτ → ντπ-K0) = (0.88±0.14±0.09)%, (Bτ → ντK-K0) = (0.29±0.12±0.03)%, (Bτ → ντπ-π0K0) = (0.33±0.14±0.07)% aand (Bτ → ντK-π0K0) = (0.05±0.05±0.01)%. The K* decay rate in the K0π channel agrees with that in the Kπ0 mode: the combined value for the branching ratio is (Bτ → ντK*-) = (1.45±0.13±0.11)%.
Articolo in rivista - Articolo scientifico
LEPTONS; LEP;
English
1994
332
1-2
219
227
none
Buskulic, D., Casper, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., et al. (1994). K0 production in one-prong τ decays. PHYSICS LETTERS. SECTION B, 332(1-2), 219-227 [10.1016/0370-2693(94)90882-6].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390400
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