Speaker
Description
BESIII is a symmetric $e^+e^-$ collider operating at c.m. energy from 2.0 to 4.95 GeV. With the world’s largest data set of $J/\psi$ (10 billion), and $\psi$(3686) (2.6 billion), and about $25 fb^{-1}$ of energy scan data from 3.77 to 4.95 GeV, various dark sectors particles produced in $e^+e^-$ annihilation and meson decay processes can be searched for at BESIII. Axion-like particles (ALPs) are pseudo-Goldstone bosons arising from some spontaneously broken global symmetry, addressing the strong CP or hierarchy problems. In this talk, we report the search for invisible dark photon decays using initial state radiation, search for invisible muonic Z’ boson decays, and search for axion-like particles with a light scalar or vector particle in the muonic decay of $J/\psi$.
| Alternate track | 03. Beyond the Standard Model |
|---|---|
| I read the instructions above | Yes |
