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Author: XinChou Lou (University of Texas at Dallas)

Title: BES Results on Inclusive D Meson Decays

Abstract: A measurement of branching fractions of the D0 and D+ mesonsinto the phi meson is reported. The result is based ona data sample of 22.3 pb-1 collected at the CM energy of4.03 GeV with the BES detector operated at the BEPCe+e- storage ring. From tagged DD~ pair eventsthe average branching fraction for a mixtureof D0 and D+ is determined to be B(D->phiX)=(1.29+-0.51+-0.12)%. Upper limits at 90% confidence level are set to be B(D0->phiX)<2.5%, B(D+->phiX)<5.0%, and B(D+->phie+X)<1.6%.

Comments: 7 pages, Latex, 3 figures.Report-no: noneSubj-class: hep-exJournal-ref: none

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