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Amplitude analysis of B0→D¯0K+π- decays

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The Dalitz plot distribution of B0 → D0K+π − decays is studied using a data sample corresponding to 3.0 fb−1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. The data are described by an amplitude model that contains contributions from intermediate K∗ (892)0 , K∗ (1410)0 , K∗ 2 (1430)0 and D∗ 2 (2460)− resonances. The model also contains components to describe broad structures, including the K∗ 0 (1430)0 and D∗ 0 (2400)− resonances, in the Kπ S-wave and the Dπ Sand P-waves. The masses and widths of the D∗ 0 (2400)− and D∗ 2 (2460)− resonances are measured, as are the complex amplitudes and fit fractions for all components included in the amplitude model. The model obtained will be an integral part of a future determination of the angle γ of the CKM quark mixing matrix using B0 → DK+π − decays.

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BADALOV, Alexey, CASANOVA MOHR, R., GARRIDO BELTRÁN, Lluís, GASCÓN FORA, David, GRACIANI DÍAZ, Ricardo, GRAUGÉS POUS, Eugeni, MARIN BENITO, Carla, PICATOSTE OLLOQUI, Eduardo, RIVES MOLINA, Vicente josé, RUIZ, Hugo (ruiz pérez), LHCb Collaboration. Amplitude analysis of B0→D¯0K+π- decays. _Physical Review D_. 2015. Vol. 92, núm. 012012, pàgs. 1-40. [consulta: 23 de gener de 2026]. ISSN: 2470-0010. [Disponible a: https://hdl.handle.net/2445/185669]

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