Author: Toshinori Abe (SLAC), representing the SLD Collaboration
Title: A preliminary measurement of the gluon splitting rate into $b\bar{b}$ pairs in hadronic $Z^0$ decays
Abstract: 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 in4-jet events of any primary flavor. A topological vertex mass technique wasused 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).
Comments: 6 pages Revtex, Contribution to DPF '99 Talk 0103Report-no: SLAC-PUB-8169Subj-class: experimental particle physics