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% The American Physical Society Electronic Contributed Abstract
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\MeetingID{DPF96}

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\SubmittingMemberSurname{Kim}
\SubmittingMemberGivenName{Byung-Kyu}
\SubmittingMemberEmail{bkkim@utdallas.edu}
\SubmittingMemberAffil{University of Texas at Dallas}

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%       SCIENTIFIC INFORMATION
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\begin{document}

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\Title{Direct Measurement of $B(D_s^{+}\rightarrow\phi X)$.}

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\AuthorSurname{Kim}
\AuthorGivenName{Byung-Kyu}
\AuthorAffil{ (representing the BES Collaboration)}

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\begin{abstract}

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The absolute branching fraction of $D_s^{+}$ has been measured from data 
collected by the BES detector at a center of mass energy 4.03 GeV, 
corresponding to an integrated luminosity of 22.3 $pb^{-1}$. At this 
energy, direct pair production, $e^+e^-\rightarrow D_s^{+} D_s^{-}$, has 
been observed. We have selected $D_s$ candidate events by reconstructing 
hadronic decay modes $D_s^{+}\rightarrow\phi\pi$, $\overline{K}^{0*}K^+$,
$\overline{K}^0K^+$, $f^{0} \pi^{+}$, and $\overline{K}^0K^-\pi^+\pi^+$ 
and have searched the recoil for fully and partially reconstructed $D_s$ 
mesons.

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\end{abstract}

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\end{document}

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