1212.4180 (Steven Blusk et al.)

Measurement of the CP observables in $\bstodsk$ and first observation of
$\bar{B}^0_{(s)}\to Ds^+K^-π^+π^-$ and $\bar{B}_s^0\to
D_{s1}(2536)^+π^-$    [PDF]

Steven Blusk, for the LHCb Collaboration

First measurements of the CP observables from a time-dependent analysis of $\bar{B}^0_s\to D_s^+K^-$ decays are reported. We also present the first observation of the $\bar{B}^0_{(s)}\to D_s^+K^-\pi^+\pi^-$ and $\bar{B}^0_s\to D_s(2536)^+\pi^-$ decays. The $\bar{B}^0_s\to D_s^+K^-\pi^+\pi^-$ decay can be used in a similar way to $\bar{B}^0_s\to D_s^+K^-$ to measure the weak phase $\gamma$.

View original: http://arxiv.org/abs/1212.4180