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With a design luminosity of 50 ab$^{-1}$ and detectors with trackingcapabilities extending beyond 1 m, the Belle II experiment is the perfectlaboratory for the search of particles that couple weakly to the Standard Modeland have a characteristic decay length of a few centimetres and more. We showthat for models of dark photons and other light vector bosons, Belle II will besuccessful in probing regions of parameter space which are as of now unexploredby any experiment. In addition, for models where the vector boson couplessub-dominantly to the electron and quarks as compared to muons, e.g. in the$L_\mu-L_\tau$ model, Belle II will probe regions of mass and couplingscompatible with the anomalous magnetic moment of muon. We discuss these resultsand derive the projected sensitivity of Belle II for a handful of other models.Finally, even with the currently accumulated data, $\sim 200$ fb$^{-1}$, BelleII should be able to cover regions of parameter space pertaining to the X(17)boson postulated to solve the ATOMKI anomaly.

Displaced Searches for Light Vector Bosons at Belle II