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Aaij, R.; Alexander, M.; Bobulska, D.; Douglas, L.; Eklund, Lars; Friday, D. A.; Grillo, L.; Kupsc, Andrzej; Longstaff, I.; McHugh, N. T.; Petric, M.; Schiller, M.; Soler, F. J. P.; Spradlin, P.; Whitehead, M.; Zunica, G.
Physical review. D, 2023, Letnik: 108, Številka: 5Journal Article
A measurement of charm mixing and CP-violating parameters is reported, using B over bar -> D0(-> K0S pi+pi-)x mu- nu over bar mu X 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 1.48(stat) 1 0.26(syst) x 10-3, yCP = 12.61 1 3.12(stat) 1 0.83(syst) x 10-3, Ax = -0.77 1 0.93(stat) 1 0.28(syst) x 10-3, Ay = 3.01 1 1.92(stat) 1 0.26(syst) x 10-3. The results are complementary to and consistent with previous measurements. A combination with the recent LHCb analysis of D*+ -> D0(-> K0S pi+ pi-)pi+ decays is reported.
