Speaker
Prof.
Xu Feng
(Peking University)
Description
I will discuss the first lattice QCD calculation of the universal axial γW-box contribution to both superallowed nuclear and neutron beta decays. This contribution emerges as a significant component within the theoretical uncertainties surrounding the extraction of |Vud| from superallowed decays, thereby making an important impact on the precision test of the first-row CKM unitarity.
Author
Prof.
Xu Feng
(Peking University)
