Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T10: Searches for New Physics
Search for invisible decays at BESIII
X. Shi* and  On behalf of the BESIII collaboration
Full text: pdf
Pre-published on: January 31, 2022
Published on: May 12, 2022
Abstract
BESIII has collected (448.1$\pm$2.9)$\times 10^6~\psi(3686)$ and (1.0087$\pm$0.0044)$\times 10^{10}~\rm{J}/\psi$ data sample. We report recent searches of the $\rm{J}/\psi \to \gamma +$ invisible and $\Lambda\to$ invisible based on these huge data sets, where the second one is the first search of baryon's invisible decay. With no significant signal observed, the upper limits at 90\% C.L. are calculated, which provide constraints on the corresponding new physics models.
DOI: https://doi.org/10.22323/1.398.0663
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