Based on a previous work on scenarios where the Standard Model
and dark matter particles share a common asymmetry through effective
operators at early time in the Universe and later on decouple from each
other (not care), in this work, we study in detail the collider
phenomenology of these scenarios. In particular, we use the experimental
results from the Large Hadron Collider (LHC) to constrain the viable
parameter space. Besides effective operators, we also constrain the
parameter space of some representative ultraviolet complete models with
experimental results from both the LHC and the Large Electron-Positron
Collider. Specifically, we use measurements related to jets + missing
transverse energy (MET), di-jets and photon + MET. In the case of
ultraviolet models, depending on the assumptions on the couplings and
masses of mediators, the derived constraints can become more or less
stringent. We consider also the situation where one of the mediators has
mass below 100~GeV, in this case we use the ultraviolet model to
construct a new effective operator responsible for the sharing of the
asymmetry and study its phenomenology.
