We study a scale invariant extension of the standard model which can explain
simultaneously dark matter and the hierarchy problem. In our set-up, we
introduce a scalar and a spinor as two-component dark matter in addition to
scalon field as a mediator. Interesting point about our model is that due to
scale invariant conditions, compared to other two-component dark matter models,
it has lower independent parameters. Possible astrophysical and laboratory
signatures of two-component dark matter candidate are explored and it is shown
that the most contribution of observed relic density of dark matter can be
determined by spinor dark matter. Detectability of these dark matter particles
is studied and the direct and invisible Higgs decay experiments are used to
rule out part of the parameter space of the model. In addition, the dark matter
self-interactions are considered and shown that their contribution saturate
this constraint in the resonant regions.Comment: 22 pages, 14 figure
