Kang, K. H. and Park, H. and Higuchi, T. and Giri, Anjan Kumar et. al.
(2021)
Measurement of time-dependent CP violation parameters in B0 → KS0 KS0 KS0 decays at Belle.
Physical Review D, 103 (3).
ISSN 2470-0010
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Abstract
We measure the time-dependent CP violation parameters in B0→KS0KS0KS0 decays using 772×106BB¯ pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The obtained mixing-induced and direct CP asymmetries are -0.71±0.23 (stat)±0.05 (syst) and 0.12±0.16 (stat)±0.05 (syst), respectively. These values are consistent with the Standard Model predictions. The significance of CP violation differs from zero by 2.5 standard deviations.
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