A measurement of charm mixing and CP-violating parameters is reported, using B¯→D0(→KS0π+π-)μ-ν¯μX decays reconstructed in proton-proton collisions collected by the LHCb experiment during the years 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb-1. The measured mixing and CP-violating parameters are xCP=[4.29±1.48(stat)±0.26(syst)]×10-3, yCP=[12.61±3.12(stat)±0.83(syst)]×10-3, Δx=[-0.77±0.93(stat)±0.28(syst)]×10-3, Δy=[3.01±1.92(stat)±0.26(syst)]×10-3. The results are complementary to and consistent with previous measurements. A combination with the recent LHCb analysis of D∗+→D0(→KS0π+π-)π+ decays is reported.
Model-independent measurement of charm mixing parameters in ¯𝐵→𝐷0( →𝐾0𝑆𝜋+𝜋−)𝜇−¯𝜈𝜇𝑋 decays
Bassi, G.Membro del Collaboration Group
;Kleijne, N.Membro del Collaboration Group
;Lusiani, A.Membro del Collaboration Group
;Morello, M. J.Membro del Collaboration Group
;Pica, L.Membro del Collaboration Group
;Ribatti, R.Membro del Collaboration Group
;
2023
Abstract
A measurement of charm mixing and CP-violating parameters is reported, using B¯→D0(→KS0π+π-)μ-ν¯μX decays reconstructed in proton-proton collisions collected by the LHCb experiment during the years 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb-1. The measured mixing and CP-violating parameters are xCP=[4.29±1.48(stat)±0.26(syst)]×10-3, yCP=[12.61±3.12(stat)±0.83(syst)]×10-3, Δx=[-0.77±0.93(stat)±0.28(syst)]×10-3, Δy=[3.01±1.92(stat)±0.26(syst)]×10-3. The results are complementary to and consistent with previous measurements. A combination with the recent LHCb analysis of D∗+→D0(→KS0π+π-)π+ decays is reported.File in questo prodotto:
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