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Mixing and CP violation in open-charmed beauty decays

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If you have a question about this talk, please contact Dr Bill Balunas .

Mesons comprising a beauty quark and a strange quark can oscillate between particle (Bs) and antiparticle (Bsbar) flavour eigenstates, with a frequency given by the mass difference between heavy and light mass eigenstates, Δms. Time-dependent CP violation in Bs decays can be studied using this mixing frequency to obtain the CKM -angle γ. These measurements show clear quantum interference effects, making use of the most distinguishing features of the LHCb detector. This seminar discusses the measurements of the Bs mixing-frequency Δms using Bs→Dsπ decays and the CKM -angle γ using Bs→DsK decays. These quantities are measured using a data set corresponding to an integrated luminosity of 6fb-1 at a centre-of-mass energy of √s=13TeV recorded with the LHCb detector between 2015 and 2018.

This talk is part of the Cavendish HEP Seminars series.

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