Determination of the branching fractions of $B_s^0\to D_s^{\mp }{K}^{\pm }$ and $B^0\to D_s^{-}{K}^{+}$

Abstract

Measurements are presented of the branching fractions of the decays $B_s^0\to D_s^{\mp }{K}^{\pm }$ and $B^0\to D_s^{-}{K}^{+}$ relative to the decays $B_s^0\to D_s^{-}{\pi }^{+}$ and $B^0\to D^{-}{\pi }^{+}$, respectively. The data used correspond to an integrated luminosity of 3.0 fb${}^{-1}$ of proton-proton collisions. The ratios of branching fractions are $\frac{\mathcal{B}(B_s^0\to D_s^{\mp }{K}^{\pm })}{\mathcal{B}(B_s^0\to D_s^{-}{\pi }^{+})}=0.0752\pm 0.0015\pm 0.0019$ and $\frac{\mathcal{B}(B^0\to D_s^{-}{K}^{+})}{\mathcal{B}(B^0\to D^{-}{\pi }^{+})}=0.0129\pm 0.0005\pm 0.0008,$ where the uncertainties are statistical and systematic, respectively.

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• PYTHIA 6.4 Physics and Manual
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• B decays dominated by omega-phi mixing
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Cited by in corpus (4)

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• Two-body non-leptonic heavy-to-heavy decays at NNLO in QCD factorization
• A new algorithm for identifying the flavour of $B_s^0$ mesons at LHCb
• First observation and measurement of the branching fraction for the decay $B_s^0\to D_s^{\ast \mp }{K}^{\pm }$