PoS - Proceedings of Science
Volume 377 - 18th International Conference on B-Physics at Frontier Machines (Beauty2019) - Rare decays
Charmless b-hadron decays at LHCb
D. O'hanlon
Full text: pdf
Pre-published on: February 23, 2020
Published on: September 09, 2020
Abstract
Violation of charge-parity ($C\!P$) symmetry in the Standard Model is driven by a single global phase, however manifestations of $C\!P$ violating quantities are often non-trivial due to the role of the strong interaction in generating observable $C\!P$ violation effects. Here we explore how the role of the strong phase in $B^+ \rightarrow \pi^+\pi^+\pi^-$ decays, described by the intermediate resonance structure and final-state rescattering effects, governs the manifestation of large $C\!P$ violation. Significant $C\!P$ violation is observed in the scalar and tensor contributions, along with the first observation of $C\!P$ violation in the interference between two competing decay amplitudes. Additionally $P$ and $C\!P$ violation are tested for in the phase-space of $\Lambda_b^0 \rightarrow p^+\pi^-\pi^+\pi^-$ decays using model-independent triple-product asymmetry and energy-test methods, with a first observation of $P$ violation in $b$-baryon decays.
DOI: https://doi.org/10.22323/1.377.0022
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.