PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Quark and Lepton Flavor Physics
Charmless two- and four-body b-hadron decays at LHCb
M. Vieites Diaz* on behalf of the LHCb collaboration
*corresponding author
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
In this document, two of the latest results obtained by the LHCb Collaboration on the area of charmless $b$ decays are summarised. The first observation of the very rare $B^0\rightarrow K^+K^-$ decay mode is presented, together with the most precise measurements of $ \mathcal{B}(B^0\rightarrow K^+K^-)$ and $\mathcal{B}(B^0_s\rightarrow \pi^+\pi^-)$. The second result is related to $CP$ violation in baryonic matter. A search for $P$ and $CP$ violation was performed by studying triple-product asymmetries in the $\Lambda^0_b\rightarrow p\pi^-\pi^+\pi^-$ and $\Lambda^0_b\rightarrow p\pi^-K^+K^-$ decay channels. This leads to the first evidence of matter-antimatter asymmetry in the baryonic sector.
DOI: https://doi.org/10.22323/1.282.0536
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