It's a plausible idea, but there are no guarantees. The reasoning goes like this: So far, the Standard Model is holding up quite well (too well in fact; it wou

It's a plausible idea, but there are no guarantees. The reasoning goes like this: So far, the Standard Model is holding up quite well (too well in fact; it would be nice to have some glaring discrepancies pointing to new physics). According to the Standard Model, all fundamental particles with mass get that mass by interacting with the Higgs field. Now, assuming that dark matter also consists of particles with mass (plausible), it's a fair guess that those particles also get their mass by interacting with the Higgs field. And if they do, we should be able to produce them by making Higgs particles (excitations of the Higgs field); when those decay, they will produce pairs of any particle species which they interact with (provided that those particle pairs are less massive than the Higgs particle; and even if they are not, their existence should indirectly affect Higgs decay to other particle species in ways which may be possible to study). An obvious way this idea could fail is that dark matter gets its mass from a different Higgs field than the Standard Model one (SUSY generally requires more than one Higgs field, and GUTs can have lots). Another is that dark matter is not just another particle but something more weird.