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Studies of the decay $B^{0}_{s} \to D^{\mp}_sK^{\pm}$

High Energy Physics - Experiment 2012-05-16 v1
Authors: Barbara Storaci
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Abstract

The decay mode Bs0→Ds∓K±B^{0}_{s} \to D^{\mp}_s K^{\pm} allows for one of the theoretically cleanest time dependent measurements of the CKM angle γ\gamma. This contribution reports the world best branching fraction of this decay relative to the Cabibbo--favoured mode Bs0→Ds−π+B^{0}_{s} \to D_{s}^{-}\pi^{+} based on data sample of 0.37 fb−1\rm fb^{-1} proton--proton collisions at s=7\sqrt{s} = 7 TeV collected with the LHCb detector in 2011, resulting in BR(\BsDK)=(1.90±0.12stat±0.13syst−0.14+0.12fs/fd)×10−4BR(\BsDK) = (1.90 \pm 0.12^{stat} \pm {{0.13^{syst}}^{+0.12}_{-0.14}}^{f_{s}/f_{d}})\times 10^{-4}.

Keywords

B_s^0 decay CKM angle gamma branching fraction LHCb proton-proton collisions time-dependent measurement

Cite

@article{arxiv.1205.3411,
  title  = {Studies of the decay $B^{0}_{s} \to D^{\mp}_sK^{\pm}$},
  author = {Barbara Storaci},
  journal= {arXiv preprint arXiv:1205.3411},
  year   = {2012}
}

Comments

4 pages, 3 figures, presented at Recontres de Moriond EW 2012

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