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 \overline{B}→D0(→KS0π+π−)μ−\overline{ν}μX decays / R. Aaij, A. . .A.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 108:5(2023 Sep 06), pp. 052005.1-052005.17. [10.1103/PhysRevD.108.052005]
Model-independent measurement of charm mixing parameters in \overline{B}→D0(→KS0π+π−)μ−\overline{ν}μX decays
M. Lazzaroni;C. Mancuso;D. Marangotto;A. Merli;N. Neri;M. Petruzzo;E. Spadaro Norella;G. Tonani;
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 | Dimensione | Formato | |
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PhysRevD.108.052005.pdf
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