Description
BESIII has collected 20.3 and 7.33 $fb^{-1}$ of $e^+e^-$ collision data samples at 3.773 and 4.128-4.226 GeV, respectively. This provides a unique opportunity to investigate the non-perturbative nature of QCD in the charm sector.
In this presentation, we will discuss the recent progresses in amplitude analyses and branching fraction measurements of $D_{(s)}\to h h l^+ \nu$ and $h h h l^+ \nu$ processes. On the hadron spectrum, scalar ($a_0$, $f^0$, $\sigma$), vector ($K^*$, $\phi$), axial vector ($K_1$, $b_1$) particles are studied. The measurements of $D \to a^0(980)$, $D \to \sigma$, D -> K*, $D_s \to f^0(980)$, and $D_s \to \phi$ form factors will be presented.
| Secondary track | T07 - Flavour Physics and CP Violation |
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