Direct Measurements of Absolute Branching Fractions for D0 and D+ Inclusive Semimuonic Decays

Abstract

By analyzing about 33 $\mathrm{p}{\mathrm{b}}^{-1}$ data sample collected at and around 3.773 GeV with the BES-II detector at the BEPC collider, we directly measure the branching fractions for the neutral and charged $D$ inclusive semimuonic decays to be $BF(D^0\to {\mu }^{+}X)=(6.8\pm 1.5\pm 0.7)$ and $BF(D^{+}\to {\mu }^{+}X)=(17.6\pm 2.7\pm 1.8)$, and determine the ratio of the two branching fractions to be $\frac{BF(D^{+}\to {\mu }^{+}X)}{BF(D^0\to {\mu }^{+}X)}=2.59\pm 0.70\pm 0.25$.

References in corpus (3)

• Measurements of the cross sections for $e^{+}{e}^{-}\to \mathrm{hadrons}$ at 3.650, 3.6648, 3.773 GeV and the branching fraction for $\psi (3770)\to \mathrm{non}-D\bar{D}$
• Measurements of the braching fractions for psi(3770)--> D0D0-bar,D+D-,DD-bar$ and the resonance parameters of psi(3770) and psi(2S)
• Direct measurement of the absolute branching fraction for $D^{+}\to {\bar{K}}^0{\mu }^{+}{\nu }_{\mu }$ and determination of $\Gamma (D^0\to K^{-}{\mu }^{+}{\nu }_{\mu })/\Gamma (D^{+}\to {\bar{K}}^0{\mu }^{+}{\nu }_{\mu })$

Cited by in corpus (2)

• On the matrix elements of dB=0 operators in the heavy meson decay widths
• Theory of Semileptonic Charm Decays