https://doi.org/10.1140/epjc/s2005-02388-4
Experimental Physics
Production of
and
in Z decays and lifetime measurement of
The charmed strange baryon was searched for in the decay channel
, and the beauty strange baryon
in the inclusive channel
, using the 3.5 million hadronic Z events collected by the DELPHI experiment in the years 1992-1995. The
was reconstructed through the decay
, using a constrained fit method for cascade decays. An iterative discriminant analysis was used for the
and
selection. The production rates were measured to be
BR
per hadronic Z decay, and BR
BR
for each lepton species (electron or muon). The lifetime of the
baryon was measured to be
ps. A combination with the previous DELPHI lifetime measurement gives
ps.
© Springer-Verlag, 2005