A preliminary measurement of the gluon splitting rate into $b\bar{b}$ pairs in hadronic $Z^0$ decays

Details A preliminary measurement of the gluon splitting rate into $b\bar{b}$ pairs in hadronic $Z^0$ decays A preliminary measurement of the gluon splitting rate into $b\bar{b}$ pairs in hadronic $Z^0$ decays

1999-05-28

arxiv.org/abs/hep-ex/9905057v1

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages 3 figures Latex, Contribution to DPF '99

Scientific paper

We present a measurement of the rate of gluon splitting into bottom quarks, $g \to b\bar{b}$, in hadronic $Z^0$ decays collected by SLD from 1996 to 1998. The analysis was performed by looking for secondary bottom production in 4-jet events of any primary flavor. A topological vertex mass technique was used to tag the two jets with the smallest angle between them as $b/\bar{b}$. We obtained a rate of $g \to b\bar{b}$ per hadronic event to be $(3.07 \pm 0.71 {\rm (stat.)} \pm 0.66 {\rm (syst.)})\times 10^{-3}$ (preliminary).

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