From a sample of about 75000 tau decays identified with the ALEPH detector, K0 production in 1-prong hadronic decays is investigated by tagging the K(L)0 component in a hadronic calorimeter. Results are given for the final states nu(tau) h- K0 and nu(tau) h- pi0 K0 where the h- is separated into pi and K contributions by means of the dE/dx measurement in the central detector. The resulting branching ratios are: B(tau- -> nu(tau) pi- K0) = (0.88 +/- 0.14 +/- 0.09)%, B(tau - -> nu(tau) K- K0) = (0.29 +/- 0.12 +/- 0.03)%, B(tau- -> nu(tau) pi- pi0 K0) = (0.33 +/- 0.14 +/- 0.07)% and B(tau- -> nu(tau) K- pi0 K0) = (0.05 +/- 0.05 +/- 0.01)%. The K* decay rate in the K0 pi channel agrees with that in the K pi0 mode: the combined value for the branching ratio is B(tau - -> nu(tau)K*-) = (1.45 +/- 0.13 +/- 0.11)%.

D., B., D., C., I., D., D., D., P., G., C., G., et al. (1994). K(0) production in one-prong tau decays. PHYSICS LETTERS. SECTION B, 332(1-2), 219-227 [10.1016/0370-2693(94)90882-6].

K(0) production in one-prong tau decays

BOTTIGLI, UBALDO;CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1994-01-01

Abstract

From a sample of about 75000 tau decays identified with the ALEPH detector, K0 production in 1-prong hadronic decays is investigated by tagging the K(L)0 component in a hadronic calorimeter. Results are given for the final states nu(tau) h- K0 and nu(tau) h- pi0 K0 where the h- is separated into pi and K contributions by means of the dE/dx measurement in the central detector. The resulting branching ratios are: B(tau- -> nu(tau) pi- K0) = (0.88 +/- 0.14 +/- 0.09)%, B(tau - -> nu(tau) K- K0) = (0.29 +/- 0.12 +/- 0.03)%, B(tau- -> nu(tau) pi- pi0 K0) = (0.33 +/- 0.14 +/- 0.07)% and B(tau- -> nu(tau) K- pi0 K0) = (0.05 +/- 0.05 +/- 0.01)%. The K* decay rate in the K0 pi channel agrees with that in the K pi0 mode: the combined value for the branching ratio is B(tau - -> nu(tau)K*-) = (1.45 +/- 0.13 +/- 0.11)%.
1994
D., B., D., C., I., D., D., D., P., G., C., G., et al. (1994). K(0) production in one-prong tau 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/11365/36831
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