Speaker
Jongkuk Kim
(Kangwon National University)
Description
In 2023, Belle II collaboration announced the observarion of the B→K+νν decay channel for the first time. This decay channel provides a clean signal with high precision in theoretical calculation. However, we encounter 2.8σ deviation from the Standard Model prediction. To resolve this excess, we study scalar dark matter model with local discrete Z 3 Z 3 symmetry. Considering dark Higgs mass is 2GeV, we can explain the recent Br(B→K νν) excess reported from Belle II collaboration and relic abundance at the same time.
Primary author
Jongkuk Kim
(Kangwon National University)
