Speaker
Description
The BESIII experiment has collected 2.7 billion psi(3686) events, 10 billion J/psi events, 20 fb^-1 D meson pairs at 3.773 GeV, and 7.33 fb^-1 DsDs events from 4.128 to 4.226 GeV. The huge data samples allow us to search for rare processes and new physics in charm hadron decays. In this talk, we report the search for FCNC decay in Ds+âh(h')e+e-, lepton number violation process Ds+-âh-h0e+e+ and phi-âpi+pi+e-e-, and search for J/psi weak decays containing D meson. We also report the search for BSM particles, including Axion-like particle and dark photon with charmonium data.The BESIII experiment has collected 2.7 billion psi(3686) events, 10 billion J/psi events, 20 fb^-1 D meson pairs at 3.773 GeV, and 7.33 fb^-1 DsDs events from 4.128 to 4.226 GeV. The huge data samples allow us to search for rare processes and new physics in charm hadron decays. In this talk, we report the search for FCNC decay in Ds+âh(h')e+e-, lepton number violation process Ds+-âh-h0e+e+ and phi-âpi+pi+e-e-, and search for J/psi weak decays containing D meson. We also report the search for BSM particles, including Axion-like particle and dark photon with charmonium data.
