2015/08/31 by Eder Izaguirre, Gordan Krnjaic, Brian Shuve · 2 citations
Physics and Astronomy · #hep-ph #astro-ph.CO #hep-ex
paper · pdf · doi:10.1103/physrevd.93.063523
published as Phys. Rev. D 93, 063523 (2016) · 24 pages, 15 figures. V2: corrected bug affecting non-pointing photon results for MiDM representative model; conclusions largely unchanged. Other minor errors and typos corrected. Submitted to PRD
arxiv created 2015/09/30 · arxiv updated 2016/03/30
Dark Matter particles with inelastic interactions are ubiquitous in extensions of the Standard Model, yet remain challenging to fully probe with existing strategies. We propose a series of powerful searches at hadron and lepton colliders that are sensitive to inelastic dark matter dynamics. In representative models featuring either a massive dark photon or a magnetic dipole interaction, we find that the LHC and BaBar could offer strong sensitivity to the thermal-relic dark matter parameter space for dark matter masses between ~100 MeV-100 GeV and fractional mass-splittings above the percent level; future searches at Belle II with a dedicated monophoton trigger could also offer sensitivity to thermal-relic scenarios with masses below a few GeV. Thermal scenarios with either larger masses or splittings are largely ruled out; lower masses remain viable yet may be accessible with other search strategies.