Measurement of the branching fractions and mass spectra for lepton decays including at Belle
arXiv:1302.4565 · doi:10.1016/j.nuclphysbps.2014.09.009
Abstract
We report a study of lepton decays involving $\Ks$ with a 669 fb data sample accumulated with the Belle detector at the KEKB asymmetric-energy collider. The branching fractions have been measured for the $\tauTO \piKs ν_τ$, $\KKs ν_τ$, $\piKspizero ν_τ$, $\KKspizero ν_τ$, $\piKsKs ν_τ$ and $\piKsKspizero ν_τ$ decays. We also provide the unfolded mass spectra for $\tauTO \piKspizero ν_τ$ and $\tauTO \KKspizero ν_τ$.
3 figures, Proceeding of Tau2012, the 12th international workshop on tau lepton physics Nagoya, Japan, 17-21 September, 2012