Journal
PHYSICAL REVIEW D
Volume 98, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.98.095022
Keywords
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Funding
- U.S. Department of Energy [DE-SC0011095]
- NSFC [11121092, 11033005, 11375202, 11875003]
- Chinese Academy of Sciences (CAS) Hundred-Talent Program
- CAS pilotB program
- China Postdoctoral Science Foundation [2016M590133]
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Motivated by the absence of dark matter signals in direct detection experiments and the discovery of gravitational waves (GWs) at aLIGO, we discuss the possibility to explore a generic classes of scalar dark matter models using the complementary searches via phase transition GWs and the future lepton collider signatures. We focus on the inert scalar multiplet dark matter models and the mixed inert scalar dark matter models, which could undergo a strong first-order phase transition during the evolution of the early universe, and might produce detectable phase transition GW signals at future GW experiments, such as LISA, DECIGO and BBO. We find that the future GW signature, together with the collider signature at future lepton collider, could further explore the model's blind spot parameter region, at which the dark matter-Higgs coupling is identically zero, thus avoiding the dark matter spin-independent direct detection constraints.
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