Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Search for rare decays at BESIII

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Quark and Lepton Flavour Physics Poster Session


Yunxuan Song (Peking University)


Based on 10 billion $J/\psi$ events accumulated by the BESIII detector, we show
searches for the rare process of $J/\psi$ weak decays. We also search for other rare
decay process, such as the FCNC process $D^0\to\pi^0\nu\bar{\nu}$, and the $J/\psi\to 4 leptons$. Using $J/\psi$ decay, BESIII also produce millions of Hyperson, which can be
used to search for the rare decay process $\Xi^-\to\Xi^0e\nu_e$.

In-person participation No

Primary author

Yunxuan Song (Peking University)


Fabrizio Bianchi (Istituto Nazionale di Fisica Nucleare)

Presentation materials