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arXiv · hep-ex/0612018

Branching fractions and direct CP asymmetries of charmless decay modes at the Tevatron

Michael Morello
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Abstract

We present new CDF results on the branching fractions and time-integrated direct CP asymmetries for $B^{0}$ and $B^{0}_{s}$ decay modes into pairs of charmless charged hadrons (pion or kaon). The data set for this update amounts to 1 fb$^{-1}$ of $\bar{p}p$ collisions at $\sqrt{s}=1.96 \rm{TeV}$. We report the first observation of the $B^{0}_{s} \to K^{-}π^{+}$ mode and a measurement of its branching fraction and direct CP asymmetry. We also observe for the first time two charmless decays of $b$-baryon: $Λ^{0}_{b} \to pπ^{-}$ and $Λ^{0}_{b} \to pK^{-}$.

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Michael Morello. 2007-03-05. Branching fractions and direct CP asymmetries of charmless decay modes at the Tevatron. https://doi.org/10.1016/j.nuclphysbps.2007.05.003

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