Using a K*(892)+D*(2010) pole model fitted to BESIII data, the authors show the D* pole can mimic the S-wave contribution previously attributed to the kappa scalar meson in D_{e4} decays.
Inputs for the $\gamma$ measurements from BESIII
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abstract
The CKM angle $\gamma$ is important for testing the unitarity of the CKM matrix and searching for new physics. $\gamma$ can be extracted by the interference between $b\to u$ and $b\to c$ in the B factory such as LHCb and Belle-II. Determining $\gamma$ also needs strong parameter information from the charm factory, such as the BESIII experiment. With quantum-correlated data samples collected at BESIII, the $\gamma$ uncertainties from the charm sector can be highly suppressed.
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Semileptonic $D_{e4}$ decays: hadronic dynamics and the determination of $|V_{cs}|$
Using a K*(892)+D*(2010) pole model fitted to BESIII data, the authors show the D* pole can mimic the S-wave contribution previously attributed to the kappa scalar meson in D_{e4} decays.