Speaker
Qiutian Tao
(Hunan University)
Description
BESIII has collected 2.93 and $6.32~fb^{-1}$ of $e^+e^-$ collision data samples at 3.773 and $4.178-4.226~\rm GeV$, respectively. We will report precision measurements of $f_{Ds}$, $|V_{cs}|$ and test of lepton flavor universality by studying the leptonic decays of $D_s \to l^+\nu$ with $\tau^+ \to \rho^+\nu$, $\pi^+\nu$, and $e^+\nu\nu$. We will also report the studies of $D_s \to \pi^0\pi^0 e^+\nu$ and $K_S K_S e^+\nu$, inclusive $D_s$ semileptonic decay, updates of $D\to K e \nu$ with a new method.
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Primary author
Prof.
Beijiang LIU
(高能所)
