Speaker
Description
Nuclear decay has been utilized for decades to study weak interaction and structure of
nuclei. In particular, it has served as a probe of New Physics through a high-precision
measurement for the coefficient of - angular correlation, Fierz interference term, and
asymmetry. Combining the precision frontier with the high-energy one from LHC constrains the coupling of exotic weak current at per-mil level, which is equivalent to a hypothetical TeV-mass particle search. The unitarity test of Cabibbo-Kobayashi-Maskawa (CKM) matrix is another exemplar of the crossroad of two frontiers. Here we have focused on the extraction of |V ud |, which can be obtained directly from the -decay properties of nuclei. A recent experiment at the INFN Legnaro National Laboratory aiming to measure the branching ratio of 10 C superallowed decay will be presented.
