Tau decays with neutral kaons
High Energy Physics - Experiment
2008-11-26 v1
Abstract
The branching ratio of the tau lepton to a neutral K meson is measured from a sample of approximately 200,000 tau decays recorded by the OPAL detector at centre-of-mass energies near the Z0 resonance. The measurement is based on two samples which identify one-prong tau decays with KL and KS mesons. The combined branching ratios are measured to be B(tau- -->pi- K0bar nutau) = (9.33+-0.68+-0.49)x10^-3 B(tau- -->pi- K0bar [>=1pi0] nutau) = (3.24+-0.74+-0.66)x10^-3 B(tau- -->K- K0bar [>=0pi0] nutau) = (3.30+-0.55+-0.39)x10^-3 where the first error is statistical and the second systematic.
Cite
@article{arxiv.hep-ex/9911029,
title = {Tau decays with neutral kaons},
author = {G. Abbiendi and the OPAL collaboration},
journal= {arXiv preprint arXiv:hep-ex/9911029},
year = {2008}
}
Comments
21 pages, 6 figures, submitted to Eur. Phys. J. C