Journal
PHYSICAL REVIEW LETTERS
Volume 114, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.051301
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Funding
- DOE [DE-FG02-13ER-41976, DE-FG02-13ER-42024]
- NSF [PHY-1250573]
- NSERC Canada
- Direct For Mathematical & Physical Scien
- Division Of Physics [1250573] Funding Source: National Science Foundation
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In single-component theories of dark matter, the 2 -> 2 amplitudes for dark-matter production, annihilation, and scattering can be related to each other through various crossing symmetries. The detection techniques based on these processes are thus complementary. However, multicomponent theories exhibit an additional direction for dark-matter complementarity: the possibility of dark-matter decay from heavier to lighter components. We discuss how this new detection channel may be correlated with the others, and demonstrate that the enhanced complementarity which emerges can be an important ingredient in probing and constraining the parameter spaces of such models.
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