期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.071103
关键词
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资金
- New Frontiers program of the Austrian Academy of Sciences
- ERC Starting Grant NewAve [638528]
- Alexander von Humboldt Foundation
- NSF [PHY-1638509]
- U.S. DOE [DE-AC02-05CH11231]
- JSPS [17K05409]
- MEXT [15H05887, 15K21733]
- WPI, MEXT, Japan
- Binational Science Foundation [2016153]
- Grants-in-Aid for Scientific Research [17K05409] Funding Source: KAKEN
- European Research Council (ERC) [638528] Funding Source: European Research Council (ERC)
The dark matter density distribution in small-scale astrophysical objects may indicate that dark matter is self-interacting, while observations from clusters of galaxies suggest that the corresponding cross section depends on the velocity. Using a model-independent approach, we show that resonant self-interacting dark matter can naturally explain such a behavior. In contrast to what is often assumed, this does not require a light mediator. We present explicit realizations of this mechanism and discuss the corresponding astrophysical constraints.
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