Measurement of time-dependent violation parameters in decays at Belle

Kang, K. H.*; 谷田 聖; Belle Collaboration*; 他204名*

Physical Review D, 103(3), p.032003_1 - 032003_8, 2021/02

https://doi.org/10.1103/PhysRevD.103.032003

We measure the time-dependent violation parameters in decays using pairs collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. The obtained mixing-induced and direct asymmetries are and , respectively. These values are consistent with the Standard Model predictions. The significance of violation differs from zero by 2.5 standard deviations.