Search for a dark photon and an invisible dark Higgs boson in $\mu^+ \mu^{\mathstrut -}$ and missing energy final states with the Belle II experiment

Abstract None
Tags
Working group Dark Sector and Low Multiplicity
Principal authors @  Michel Bertemes, Marcello Campajola, Giacomo De Pietro, Enrico Graziani, Gianluca Inguglia
Reference published in PRL
Document BELLE2-PUB-PH-2022-011
Links arXiv:2207.00509, Inspire,