25–29 Aug 2025
Madison, WI
US/Central timezone

Search for dark sector at BESIII

Not scheduled
20m
Monona Convention Center (Madison, WI)

Monona Convention Center

Madison, WI

Dark Sectors at Colliders AM Parallel

Speaker

Fabrizio Bianchi

Description

The BESIII experiment is taking data at symmetric e+e- collider operating at the center of mass
energies from 2.0 to 4.95 GeV. With the world’s largest on-threshold production data
set of $J/\psi$ (10 billion), $\psi(3686)$ (2.6 billion), and 20 $fb^{-1}$ of $\psi(3770)$ decaying
into D meson pairs, we are able to search for various dark sectors candidates produced in e+e-
annihilation and meson decay processes. In this talk, we report the search for BSM
particles in $\Sigma$ decay and Axion-like particle search with $J/\psi$ data. The search
for massless dark photon through the charm FCNC process $D^0 \to \omega \gamma’$ and
$D^0 \to \gamma \gamma’$, and $K_s^0$ invisible decay will also be presented.

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