Journal article

First observation of the decay tau(-)->phi K-upsilon(tau)

K Inami, K Abe, K Abe, I Adachi, H Aihara, D Anipko, K Arinstein, V Aulchenko, T Aushev, S Bahinipati, AM Bakich, E Barberio, M Barbero, I Bedny, I Bizjak, A Bondar, A Bozek, M Bracko, TE Browder, A Chen Show all

PHYSICS LETTERS B | ELSEVIER SCIENCE BV | Published : 2006

Abstract

We present the first observation of τ lepton decays to hadronic final states with a φ{symbol}-meson. This analysis is based on 401 fb-1 of data accumulated at the Belle experiment. The branching fraction obtained is B (τ- → φ{symbol} K- ντ) = (4.05 ± 0.25 ± 0.26) × 10-5. © 2006 Elsevier B.V. All rights reserved.