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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/221839
A model-independent measurement of the CKM angle γ in partially reconstructed B± → D∗h ± decays with D → K0 Sh +h − (h = π, K)
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A measurement of CP-violating observables in B± → D∗K± and B± → D∗π ± decays is made where the photon or neutral pion from the D∗ → Dγ or D∗ → Dπ0 decay is not reconstructed. The D meson is reconstructed in the self-conjugate decay modes, D → K0 Sπ +π − or D → K0 SK+K−. The distribution of signal yields in the D decay phase space is analysed in a model-independent way. The measurement uses a data sample collected in proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of approximately 9 fb−1 . The B± → D∗K± and B± → D∗π ± CP-violating observables are interpreted in terms of hadronic parameters and the CKM angle γ, resulting in a measurement of γ = (92+21 −17) ◦ . The total uncertainty includes the statistical and systematic uncertainties, and the uncertainty due to external strong-phase inputs.
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COMERMA MONTELLS, Albert, GARCIA MORENO, Paula, GARRIDO BELTRÁN, Lluís, GIOVENTÙ, Alessandra, GIRONELLA GIRONELL, Pere, GOMEZ FERNANDEZ, Sergio, GRAUGÉS POUS, Eugeni, LOBO SALVIA, Aniol, LÓPEZ HUERTAS, Albert, MANERA ESCALERO, Rafel, MARIN BENITO, Carla, MAURICIO FERRE, Joan, ALFONSO ALBERO, Alejandro, VAZQUEZ GOMEZ, Ricardo, LHCb Collaboration. A model-independent measurement of the CKM angle γ in partially reconstructed B± → D∗h ± decays with D → K0 Sh +h − (h = π, K) . _Journal of High Energy Physics_. 2024. Vol. 2024, núm. 118. [consulta: 21 de gener de 2026]. ISSN: 1126-6708. [Disponible a: https://hdl.handle.net/2445/221839]