Charm semileptonic decays at the B factories

A review of charm semileptonic decays results obtained at B factories is presented. It focuses on form factors measurements in $D^0\to K^- \ell^+ ν$, $D^0\to π^- \ell^+ ν$, $D_s^+ \to K^+K^- e^+ν_e$, and $D^+ \to K^-π^+ e^+ν_e$. For the last two decay channels, the contribution and characteristics of other components in the final state, in addition to the main vector contribution, is also studied.

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