Search for a $\mu^+\mu^-$ resonance in four-muon final states at Belle
II
Search for a $\mu^+\mu^-$ resonance in four-muon final states at Belle
II
We report on a search for a resonance $X$ decaying to a pair of muons in $e^{+}e^{-}\rightarrow \mu^+ \mu^- X$ events in the 0.212-9.000 GeV/$c^{2}$ mass range, using 178 fb$^{-1}$ of data collected by the BelleII experiment at the SuperKEKB collider at a center of mass energy of 10.58 GeV. …