Model-independent measurement of charm mixing parameters in B ¯ →d0 (→ KS0 π+π-)μ- ν ¯ μx decays

(LHCb Collaboration)

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Resum

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.

Idioma originalAnglès
Número d’article052005
RevistaPhysical Review D
Volum108
Número5
DOIs
Estat de la publicacióPublicada - 1 de set. 2023

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