Production of inert scalars at the high energy e + e − colliders

We investigate the phenomenology of the light charged and neutral scalars in inert doublet model at future e + e − colliders with center of mass energies of 0.5 and 1 tev, and integrated luminosity of 500 fb−1. the analysis covers two production processes, e + e − → h + h − and e + e − → ah, and consists of signal selections, cross section determinations as well as dark matter mass measurements. several benchmark points are studied with focus on h ± → w ± h and a → zh decays. it is concluded that the signal will be well observable in different final states allowing for mass determination of all new scalars with statistical precision of the order of few hundred mev.