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.]

Measurement of the CKM angle γ using the B ± → D * h ± channels / Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2023:12(2023), pp. N/A-N/A. [10.1007/JHEP12(2023)013]

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

Bizzeti A.;
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.]
2023
2023
12
N/A
N/A
Measurement of the CKM angle γ using the B ± → D * h ± channels / Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2023:12(2023), pp. N/A-N/A. [10.1007/JHEP12(2023)013]
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinen, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1342949
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