DOI 10.1007/s100520000317
Tau decays with neutral kaons
The OPAL Collaboration
G.Abbiendi
- et al.
2 Dipartimento di Fisica dell' Università di Bologna and INFN,
40126 Bologna, Italy
Received: 29 October 1999 / Published online: 24 February 2000 - © Springer-Verlag 2000
Abstract
The branching ratio of the
lepton to a neutral kaon meson
is measured from a sample
of approximately 200,000
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
decays with
and
mesons.
The combined branching ratios are measured to be

where the first error is statistical and the second systematic.
Copyright Società Italiana di Fisica, Springer-Verlag 2000