ICHEP 2022

Search for invisible decays at BESIII

7 Jul 2022, 12:30

15m

Room 10 (Magenta B)

Parallel Talk Beyond the Standard Model Beyond the Standard Model

Speaker

Houbing Jiang

Description

BESIII has collected 2.5 billion $\psi (2S)$ events and 10 billion $J/\psi$ events. The huge data
sample provide an excellent chance to search for new physics. We report the search
for the decay $J/\psi \to \gamma +invisible$, which is predicted by next-to-minimal
supersymmetric model. We also report the first search for the invisible decay of
$\mathrm{\Lambda }$, which is predicted by the mirror matter model and could explain the
$4\sigma$ discrepancy in neutron lifetime measurement between beam method and bottle
method. A light Higgs $A^0$ is also searched in radiative decay of $J/\psi$

Presentation materials

ICHEP_Houbing.pdf