October 9, 2025Open Access

Gamma-Rays and Gravitational Waves from Inelastic Higgs Portal Dark Matter

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This model demonstrates potential gamma-ray signals and gravitational waves from dark matter, suggesting new physics.

This model explains the Galactic Center gamma-ray excess, offering insight into dark matter interactions.
Predominant off-diagonal interactions make the model safe from direct detection constraints, enhancing its viability.
The scenario could trigger a strong first-order electroweak phase transition, influencing the Higgs potential.
A stochastic gravitational wave background may arise, with detectable signals expected from future space-based detectors.

Hooper et al. (2025) studied this question.

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