Search for an invisible $Z'$ in final states with two muons and missing energy at Belle II

Abstract None
Tags
Working group Dark Sector and Low Multiplicity
Principal authors @  Marcello Campajola, Giacomo De Pietro, Paul Feichtinger, Enrico Graziani, Gianluca Inguglia, Petar Rados, Laura Zani
Reference published in PRL
Document BELLE2-PUB-PH-2022-008
Links arXiv:2212.03066, Inspire,