New dark matter production mechanism and the gravitational wave signals

Fa Peng Huang

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arXiv · 2512.08616

New dark matter production mechanism and the gravitational wave signals

Fa Peng Huang

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Abstract

The microscopic origin and production mechanism of dark matter (DM) remain central questions in cosmology and particle physics. While thermal freeze-out has long dominated DM model building, alternative non-thermal scenarios are gaining prominence. In this work, we explore novel production channels for heavy DM candidates, including pseudo-Nambu-Goldstone bosons (pNGBs), Q-balls, and filtered DM arising from early-universe phenomena such as primordial black hole (PBH) evaporation, superradiance, and first-order phase transitions. We demonstrate that these mechanisms naturally generate gravitational wave signals detectable by future observatories, such as LISA, TianQin, Taiji, and Cosmic Explorer. This multi-messenger approach offers a promising pathway to probe the origin and nature of DM beyond conventional paradigms.

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Fa Peng Huang. 2025-12-09. New dark matter production mechanism and the gravitational wave signals. https://arxiv.org/abs/2512.08616

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