From a sample of about 75000 tau decays measured in the ALEPH detector, 1-prong charged kaon decays are identified by the dE/dx measurement in the central detector. The resulting branching ratios for the inclusive and exclusive modes are: B(tau - -> nu(tau)K- greater-than-or-equal-to 0 pi0 greater-than-or-equal-to 0 K0) = (1.60 +/- 0.07 +/- 0.12)%, B(tau - -> nu(tau)K-) = (0.64 +/- 0.05 +/- 0.05)%, B(tau - -> nu(tau)K-pi0) = (0.53 +/- 0.05 +/- 0.07)% and B(tau - -> nu(tau)K-pi0pi0) = (0.04 +/- 0.03 +/- 0.02)%. Exclusive modes are corrected for measured K(L)0 production. The rate for tau --> nu(tau)K- agrees well with the prediction based on tau - mu universality.

D., B., D., C., L., D., D., D., P., G., C., G., et al. (1994). One-prong tau decays into charged kaons. PHYSICS LETTERS. SECTION B, 332(1-2), 209-218 [10.1016/0370-2693(94)90881-8].

One-prong tau decays into charged kaons

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

Abstract

From a sample of about 75000 tau decays measured in the ALEPH detector, 1-prong charged kaon decays are identified by the dE/dx measurement in the central detector. The resulting branching ratios for the inclusive and exclusive modes are: B(tau - -> nu(tau)K- greater-than-or-equal-to 0 pi0 greater-than-or-equal-to 0 K0) = (1.60 +/- 0.07 +/- 0.12)%, B(tau - -> nu(tau)K-) = (0.64 +/- 0.05 +/- 0.05)%, B(tau - -> nu(tau)K-pi0) = (0.53 +/- 0.05 +/- 0.07)% and B(tau - -> nu(tau)K-pi0pi0) = (0.04 +/- 0.03 +/- 0.02)%. Exclusive modes are corrected for measured K(L)0 production. The rate for tau --> nu(tau)K- agrees well with the prediction based on tau - mu universality.
1994
D., B., D., C., L., D., D., D., P., G., C., G., et al. (1994). One-prong tau decays into charged kaons. PHYSICS LETTERS. SECTION B, 332(1-2), 209-218 [10.1016/0370-2693(94)90881-8].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36769
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