  We study the naturalness problem using a model independent bottom up approach
by considering models where only the interaction terms needed to cancel the
Higgs quadratic divergences are present. If quadratic divergences are canceled
by terms linear in the Higgs field, then the collider phenomenology is well
covered by current electroweakino and fourth generation searches. If quadratic
divergences are canceled by terms bilinear in the Higgs field, then the
signatures are highly dependent on the quantum numbers of the new particles.
Precision Higgs measurements can reveal the presence of new particles with
either vevs or Standard Model charges. If the new particles are scalar dark
matter candidates, their direct and indirect detection signatures will be
highly correlated and within the reach of XENON100 and Fermi. Observation at
one of these experiments would imply observation at the other one. Observable
LHC decay channels can also arise if the new particles mix with lighter states.
This decay channel involves only the Higgs boson and not the gauge bosons.
Observation of such decays would give evidence that the new particle is tied to
the naturalness problem.
