Search for neutrinoless decays τ → ? h h and τ → ? V 0
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
640
Journal Issue
4
Pages
138-144
Date Issued
2006
Author(s)
Yusa, Y.
Abstract
We have searched for neutrinoless Ï lepton decays into â hh or â V0, where â stands for an electron or muon, h for a charged light hadron, Ï or K, and V0 for a neutral vector meson, Ï 0, K* (892)0 and Ï {symbol}, using a 158 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. Since the number of events observed are consistent with the expected background, we set upper limits on the branching fractions in the range of (1.6 - 8.0) à 10-7 for various decay modes at the 90% confidence level. © 2006 Elsevier B.V. All rights reserved.
SDGs
Type
journal article