Benchmarking isosopin symmetry breaking in ab initio nuclear theory via the isobaric multiplet mass equation in T = 1 superallowed β decay systems
Searching for physics Beyond the Standard Model (BSM) has become a central focus in physics research over the past few decades. One way to do this is through precision measurements of superallowed 0+ → 0+ Fermi β decay. These decays give the most precise measurements of the vector coupling constant of the weak interaction, an important step in calculating the up-down element of the Cabibbo-Kobayashi-Maskawa (CKM) matrix. CKM unitarity, if broken, would imply significant physics BSM. However, the extraction of the vector coupling constant assumes perfect isospin symmetry in nuclei, requiring ...
(For more, see "View full record.")