A measurement of the CP-violating observables from B ± → D * K ± and B ± → D * π ± decays is presented, where D *(D) is an admixture of D *0 and D¯ ∗ 0 (D 0 and D¯) states and is reconstructed through the decay chains D * → Dπ 0 /γ and D→KS0π+π−/KS0K+K− . The measurement is performed by analysing the signal yield variation across the D decay phase space and is independent of any amplitude model. The data sample used was collected by the LHCb experiment in proton-proton collisions and corresponds to a total integrated luminosity of 9 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV. The CKM angle γ is determined to be (69−14+13)∘ using the measured CP-violating observables. The hadronic parameters rBD∗K±,rBD∗π±,δBD∗K±,δBD∗π± , which are the ratios and strong phase differences between favoured and suppressed B ± decays, are also reported. [Figure not available: see fulltext.]

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of the CKM angle γ using the B ± → D * h ± channels. JOURNAL OF HIGH ENERGY PHYSICS, 2023(12) [10.1007/JHEP12(2023)013].

Measurement of the CKM angle γ using the B ± → D * h ± channels

Borsato M.;Calvi M.;Capelli S.;Cardini A.;Carniti P.;de Boer J.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Grillo L.;Khanji B.;Kirsebom V. S.;Kucharczyk M.;Martinazzoli L.;Martinelli M.;Minotti A.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2023

Abstract

A measurement of the CP-violating observables from B ± → D * K ± and B ± → D * π ± decays is presented, where D *(D) is an admixture of D *0 and D¯ ∗ 0 (D 0 and D¯) states and is reconstructed through the decay chains D * → Dπ 0 /γ and D→KS0π+π−/KS0K+K− . The measurement is performed by analysing the signal yield variation across the D decay phase space and is independent of any amplitude model. The data sample used was collected by the LHCb experiment in proton-proton collisions and corresponds to a total integrated luminosity of 9 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV. The CKM angle γ is determined to be (69−14+13)∘ using the measured CP-violating observables. The hadronic parameters rBD∗K±,rBD∗π±,δBD∗K±,δBD∗π± , which are the ratios and strong phase differences between favoured and suppressed B ± decays, are also reported. [Figure not available: see fulltext.]
Articolo in rivista - Articolo scientifico
B Physics; CKM Angle Gamma; CP Violation; Hadron-Hadron Scattering;
English
1-dic-2023
2023
2023
12
13
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of the CKM angle γ using the B ± → D * h ± channels. JOURNAL OF HIGH ENERGY PHYSICS, 2023(12) [10.1007/JHEP12(2023)013].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/477691
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