Impact of Long Range Forces on Colored Dark Sectors
Mathias Becker (JGU Mainz)

A non-minimal dark sector could explain why WIMP dark matter has evaded
detection so far. Based on the extensively studied example of a simplified
t-channel dark matter model involving a colored mediator, we demonstrate that
the Sommerfeld effect and bound state formation must be considered for an
accurate prediction of the relic density and thus also when inferring the
experimental constraints on the model. We find that parameter space thought to
be excluded by LHC searches and direct detection experiments still remains
viable. Moreover, we point out that the search for bound state resonances at the
LHC offers a unique opportunity to constrain a wide range of dark matter
couplings inaccessible to prompt and long-lived particle searches.