@article{044a680827e04b1cb34c6c09ef7f520a,
title = "Measurement of CP Violation in B0 →ψ (→ℓ+ℓ-) KS0 (→π+π-) Decays",
abstract = "A measurement of time-dependent CP violation in the decays of B0 and B¯0 mesons to the final states J/ψ(→μ+μ-)KS0, ψ(2S)(→μ+μ-)KS0 and J/ψ(→e+e-)KS0 with KS0→π+π- is presented. The data correspond to an integrated luminosity of 6 fb-1 collected at a center-of-mass energy of s=13 TeV with the LHCb detector. The CP-violation parameters are measured to be SψKS0=0.717±0.013(stat)±0.008(syst) and CψKS0=0.008±0.012(stat)±0.003(syst). This measurement of SψKS0 represents the most precise single measurement of the CKM angle β to date and is more precise than the current world average. In addition, measurements of the CP-violation parameters of the individual channels are reported and a combination with the LHCb Run 1 measurements is performed.",
author = "{(LHCb Collaboration)} and R. Aaij and Abdelmotteleb, {A. S.W.} and {Abellan Beteta}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and P. Adlarson and H. Afsharnia and C. Agapopoulou and Aidala, {C. A.} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and Z. Aliouche and {Alvarez Cartelle}, P. and R. Amalric and S. Amato and Amey, {J. L.} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and P. Andreola and M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and D. Bacher and {Bachiller Perea}, I. and S. Bachmann and M. Bachmayer and Back, {J. J.} and A. Bailly-Reyre and {Baladron Rodriguez}, P. and V. Balagura and E. Golobardes and {Valls Canudas}, N. and X. Vilasis-Cardona",
note = "Publisher Copyright: {\textcopyright} 2024 CERN. ",
year = "2024",
month = jan,
day = "12",
doi = "10.1103/PhysRevLett.132.021801",
language = "English",
volume = "132",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "2",
}