Superallowed $0^{+}\to 0^{+}$ $\beta$ decay studies at GANIL and upcoming opportunities with DESIR and S${}^3$-LEB

B. M. Rebeiro, J. -C. Thomas, B. Blank

Corrected transition rates ($\mathcal{F}{t}^{0^{+}\to 0^{+}}$) of $0^{+}\to 0^{+}$ superallowed $\beta$ decays currently give the most precise value of $V_{ud}$, the dominant t…