10-17 July 2019
Europe/Brussels timezone

CP violation in multi-body charmless b-hadron decays at LHCb

11 Jul 2019, 12:20
Campus Ledeganck - Aud. 6 (Ghent)

Campus Ledeganck - Aud. 6


Parallel talk Flavour Physics and CP Violation Flavour Physics and CP Violation


Adam Morris (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)


Long-distance resonant dynamics along with a sizeable weak phase present in multi-body charmless b-hadron decays leads to a rich structure of CP violation as a function of the phase space. Amplitude analysis provides a deeper understanding of the mechanisms that generate strong phase variations, which are responsible for this effect. We present the amplitude analyses of B+ -> pi+ K+ K- and Bs -> Ks K± pi∓. For the former, CP asymmetries of the contributing quasi-two-body resonances are measured.
Charmless b-baryon decays represent a promising opportunity to make a first observation of CP violation in the baryonic sector. We also present the most recent measurements of four-body charmless b-baryon decays performed by LHCb.

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