Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h−
Author(s)
Williams, Michael
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A measurement of CP-violating observables is performed using the decays B → DK and B → Dπ , where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π π and KS0K K (commonly denoted KS0h h ). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be (68.7−5.1+5.2)°. The hadronic parameters rBDK,rBDπ,δBDK,andδBDπ, which are the ratios and strong-phase differences of the suppressed and favoured B decays, are also reported. [Figure not available: see fulltext.] ± ± ± ± + − + − + − −1 ±
Date issued
2021-02-01Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Williams, Michael. 2021. "Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h−." Journal of High Energy Physics, 2021 (2).
Version: Final published version