Charm semileptonic decays at the B factories

TL;DR

This paper reviews recent experimental results from B factories on charm semileptonic decays, focusing on form factor measurements and the analysis of various decay channels and their components.

Contribution

It provides a comprehensive summary of form factor measurements and decay component analyses in charm semileptonic decays at B factories, highlighting new experimental insights.

Findings

Precise form factor measurements for multiple decay channels.

Identification of additional components in decay final states.

Insights into decay dynamics and contributions beyond the main vector component.

Abstract

A review of charm semileptonic decays results obtained at B factories is presented. It focuses on form factors measurements in $D^0\to K^- \ell^+ \nu$, $D^0\to \pi^- \ell^+ \nu$, $D_s^+ \to K^+K^- e^+\nu_e$, and $D^+ \to K^-\pi^+ e^+\nu_e$. 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.