期刊
PHYSICS LETTERS B
卷 643, 期 1, 页码 5-10出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2006.10.027
关键词
Tau; Phi
We present the first observation of tau lepton decays to hadronic final states with a phi-meson. This analysis is based on 401 fb(-1) of data accumulated at the Belle experiment. The branching fraction obtained is B(tau(-) -> phi K(-)v(tau)) = (4.05 +/- 0.25 +/- 0.26) x 10(-5). (c) 2006 Elsevier B.V. All rights reserved.
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