Search for a $\hat{I}{¼}^{+}\hat{I}{¼}^{-}$ resonance in four-muon final states at Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +401

We report on a search for a resonance $X$ decaying to a pair of muons in $e^{+}{e}^{-}\to \hat{I}{¼}^{+}\hat{I}{¼}^{-}X$ events in the 0.212-9.000 GeV/$c^2$ mass range, using 178 fb${}^{-1}$ o…