Measurement of theD0lifetime from the upgraded Mark II detector at the SLACe+e−storage ring PEP

Publisher Website

1 November 1987

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 36 (9) , 2850-2853
https://doi.org/10.1103/physrevd.36.2850

Abstract

We present a new measurement of the

D^{0}

meson lifetime based on 31

{pb}^{- 1}

of

e^{+}

e^{-}

interaction data taken at √s =29 GeV. The data were recorded with the upgraded Mark II detector, which allowed the identification of a clean

D^{0}

signal from this small data set. Using a sample of 53

D^{0}

candidates based on the decays

D^{0}

→

K^{-}

π^{+}

,

K^{-}

π^{+}

π^{0}

, and

K^{-}

π^{+}

π^{-}

π^{+}

, we measure the

D^{0}

lifetime to be

{0.44}_{- 0.11}^{+ 0.12}

±0.06 psec.

Keywords

This publication has 8 references indexed in Scilit:

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