We report a measurement of the CP-violating parameters C and S in B0→Ks0 π0 decays at Belle II using a sample of 387×10^6 BB events recorded in e+e- collisions at a center-of-mass energy corresponding to the ϒ(4S) resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. We obtain C=-0.04 (-0.15/+0.14)±0.05 and S=0.75 (-0.23/+0.20)±0.04, where the first uncertainties are statistical and the second are systematic.
Measurement of CP Violation in B0 → Ks0 π0 Decays at Belle II
Bettarini, S;Casarosa, G;Corona, L;Forti, F;Massaccesi, L;Mondal, S;Paladino, A;Paoloni, E;Rizzo, G;Tenchini, F;
2023-01-01
Abstract
We report a measurement of the CP-violating parameters C and S in B0→Ks0 π0 decays at Belle II using a sample of 387×10^6 BB events recorded in e+e- collisions at a center-of-mass energy corresponding to the ϒ(4S) resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. We obtain C=-0.04 (-0.15/+0.14)±0.05 and S=0.75 (-0.23/+0.20)±0.04, where the first uncertainties are statistical and the second are systematic.File in questo prodotto:
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