Determination of $f_{+}^{\pi }(0)$ and Extraction of $|V_{cd}|$ from Semileptonic $D$ Decays

G. Rong, Y. Fang, H. L. Ma +1

By globally analyzing all existing measured branching fractions for $D\to \pi e^{+}{\nu }_e$ decays, partial decay rates in different four momentum transfer-squared $q^2$ bins, as well as pr…