Abstract
We study how to unravel the dark matter blind spots by phase transition gravitational waves in synergy with collider signatures at electroweak one-loop level taking the inert doublet model as an example. We perform a detailed Monte Carlo study at the future lepton colliders in the favored parameter space, which is consistent with current dark matter experiments and collider constraints. Our studies demonstrate that the Circular Electron Positron Collider and other future lepton colliders have the potential to explore the dark matter blind spots.
Highlights
In recent years, there is a growing number of cosmological and astrophysical evidence on the existence of the mysterious dark matter (DM) including the galaxy rotation curve, the precise cosmic microwave background spectrum, the bullet cluster collision, the gravitational lensing effects, and so on [1]
We focus on the detailed Monte Carlo (MC) simulations of the lepton collider signals up to one-loop level in complement to the corresponding gravitational wave (GW) signals induced by this DM model
The MC events are simulated with the following features: (i) The signal events are generated by Whizard 1.95 with upnffispffi o1⁄4la2ri4z0edGebVea, mwshearte the the center-of-mass energy one-loop electroweak corrections to the hZZ vertex in the inert doublet model (IDM) are coded into the Whizard
Summary
There is a growing number of cosmological and astrophysical evidence on the existence of the mysterious dark matter (DM) including the galaxy rotation curve, the precise cosmic microwave background spectrum, the bullet cluster collision, the gravitational lensing effects, and so on [1]. A simple and natural way to avoid large T parameter deviation ΔT is to assume m2A 1⁄4 m2HÆ To satisfy this condition, one assumes λ4 1⁄4 λ5 < 0; λ3 > 0; ð9Þ which would be consistent with all the constraints from electroweak precise measurements, DM direct searches and the collider data. The XENON1T data have pushed the DM-nucleon spin-independent elastic scatter cross section up to σSI 1⁄4 4.1 × 10−47 cm for about 30 GeV DM mass at 90% confidence level [9] These constraints almost reach the blind spots of the IDM, which means the DM-Higgs coupling λL should be extremely small. We use the package micrOMEGAS [10] to consider all the precise constraints from DM relic abundance ΩDMh2, DM direct search σSI, collider constraints [23], and use CosmoTransitions [24] to calculate the phase transition dynamics. Taking this set of benchmark points, the relic density, DM direct search, collider constraints and a SFOPT can be satisfied simultaneously
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