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Article

Measurement of time-dependent CP asymmetries in B0 → KS0 ηγ decays

Аушев Т. А., Mizuk R., Pakhlov P., Pakhlova G., Углов Т. В.

We report a measurement of time-dependent CP violation parameters in B0→KS0ηγ decays. The study is based on a data sample, containing 772×106BB pairs, that was collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the CP violation parameters of S=-1.32±0.77(stat)±0.36(syst) and A=-0.48±0.41(stat)±0.07(syst) for the invariant mass of the KS0η system up to 2.1 GeV/c2. © 2018 authors. Published by the American Physical Society.