期刊
PHYSICAL REVIEW D
卷 88, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.88.095009
关键词
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资金
- DoE [DE-SC0007859]
- CAREER [NSF-PHY 0743315]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0743315] Funding Source: National Science Foundation
Dark sector mass relations, such as those which permit near-threshold or near-resonance annihilation in the early universe, could arise due to IR-attractive ratios in renormalization group equations. Achieving a particular ratio requires specific dark matter gauge charges or interactions, leading to predictions about the dark matter properties. Furthermore, additional states with masses comparable to the dark matter mass may be necessary, potentially giving rise to novel phenomenology. We explore this idea in the context of dark matter charged under a new gauged U(1)(X) that kinetically mixes with the standard model hypercharge.
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