Speaker
Description
BESIII has collected data sets corresponding to integrated
luminosities of 2.93 fb-1, 3.19 fb-1 and 0.567 fb-1 at center-of-mass
energies of 3.773, 4.178, and 4.6 GeV, respectively. We report the
measurements of the decay constants fD(s)+, the semileptonic form
factors f_P(0), the CKM matrix elements |Vcs(d)|. These results are
important to test the LQCD calculations of fD(s)+ and f_P(0) and the
CKM matrix unitarity. Precision tests of lepton flavor universality
are also made via D(s)+ -> l+v and D0(+) -> K-bar(pi)l+v, decays. The
data set collected at 3.773 GeV contains quantum-correlated D0D0bar
pairs that allow access to the phase differences between amplitudes.
We report the measurements of strong phase differences in D0(-bar)
decays, especially for K_S/Lpi+pi-, which are important to constrain
the gamma/phi3 measurement at LHCb and Belle II. In addition, we
report the measurements of the absolute branching fraction and
amplitude analysis of D+, D0, Ds+ and Lambda_c+
Collaboration name
BESSIII
