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

LHCb Collaboration; K. De Bruyn; M. Mulder; C. J. G. Onderwater; M. van Veghel

doi:10.1103/PhysRevD.108.052005

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

LHCb Collaboration, K. De Bruyn, M. Mulder, C. J. G. Onderwater, M. van Veghel

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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.

Original language	English
Article number	052005
Number of pages	17
Journal	Physical Review D
Volume	108
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.108.052005
Publication status	Published - 1-Sept-2023

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Model-independent measurement of charm mixing parameters in B¯ → D0ð→ K0 Sπ + π − Þμ − ν¯μX decaysFinal publisher's version, 18.2 MBLicence: CC BY

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@article{253104d823e243e284739b38c92f7263,

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

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.",

author = "{LHCb Collaboration} and A. Bay and Abdelmotteleb, {A. S. W.} and {Abellan Beteta}, C. and F. Abudin{\'e}n and Chadwick, {A. J.} and {De Bruyn}, K. and M. Mulder and Onderwater, {C. J. G.} and {van Veghel}, M.",

note = "Publisher Copyright: {\textcopyright} 2023 CERN. ",

year = "2023",

month = sep,

day = "1",

doi = "10.1103/PhysRevD.108.052005",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "2470-0010",

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TY - JOUR

T1 - Model-independent measurement of charm mixing parameters in B ¯ →d0 (→ KS0 π+π-)μ- ν ¯ μx decays

AU - LHCb Collaboration

AU - Bay, A.

AU - Abdelmotteleb, A. S. W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Chadwick, A. J.

AU - De Bruyn, K.

AU - Mulder, M.

AU - Onderwater, C. J. G.

AU - van Veghel , M.

PY - 2023/9/1

Y1 - 2023/9/1

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevD.108.052005

DO - 10.1103/PhysRevD.108.052005

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AN - SCOPUS:85172811988

SN - 2470-0010

VL - 108

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052005

ER -

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

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