Inelastic dark matter from dark Higgs boson decays at FASER

We consider inelastic dark matter scenarios with photon mediator and a Higgs boson. The boson spontaneously breaks the gauge symmetry associated photon, gives mass to difference particles. Such can decay into particles hence be another source of at collider experiments. analyze sensitivity decays excited state charged FASER 2 experiment in fermion scalar scenarios. two spectra as illustrating examples which produced only through show that unprobed parameter region explored scenario for spectra.