Measurement of B0 decays to J/Psi Eta at Belle and Belle II experiment
Ming-Chuan Chang1*, 許員豪1
1Physics, Fu Jen Catholic University, Taiwan
* Presenter:Ming-Chuan Chang, email:068190@mail.fju.edu.tw
We measure the branching fractions of B0 decays to J/Psi Eta at Belle and Belle II experiment with the Belle and Belle II detector at the KEKB and SuperKEKB asymmetric-energy e+e- colliders. I will report the event selections, signal and background modeling, control sample study, and finally the current results. Since the physics environment for Belle and Belle II experiments are different, the analysis skills are different. The previous studies showed the observations of B0 decays to J/Psi Eta at Belle already. This study is to do the calibration and performance check at Belle II. In the future, this mode would be modified to study dark photon related topics.


Keywords: branching fractions , Belle and Belle II experiment, B0 decays to J/Psi Eta