Speaker
Daniel O'Hanlon
(University of Warwick)
Description
The physics potential for b-baryon decays has been relatively untapped until the advent of the LHC, and as such important questions still exist of their fundamental properties, such as whether their decays exhibit CP violation. Presented here are observations of the decays $\Lambda_b^0 \rightarrow \Lambda K^+ \pi^-$ and $\Lambda_b^0 \rightarrow \Lambda K^+ K^-$, made at a significance level of 8.1 and 15.8 Gaussian standard deviations, respectively, and measurements of their branching fractions. The phase-space integrated CP asymmetries of these decays are also measured and found to be consistent with zero. Limits are set on the branching fractions of other $\Lambda_b^0$ and $\Xi_b^0$ decays to $\Lambda h^+h^{-}$ (where '$h$' is a kaon or pion).
Author
Daniel O'Hanlon
(University of Warwick)