Search for violation in the decay at Belle

Babu, V.*; 谷田 聖; Belle Collaboration*; 他197名*

Physical Review D, 97(1), p.011101_1 - 011101_8, 2018/01

AA2018-0582.pdf:0.52MB

https://doi.org/10.1103/PhysRevD.97.011101

We search for violation in the charged charm meson decay , based on a data sample corresponding to an integrated luminosity of collected by the Belle experiment at the KEKB asymmetric-energy collider. The measured violating asymmetry is , which is consistent with the standard model prediction and has a significantly improved precision compared to previous results.