期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2016/04/015
关键词
dark matter theory; dark matter experiments
资金
- Goran Gustafsson Foundation
- European Union [PITN-GA-2011-289442]
- EU [PCIG11-GA-2012-321582]
- Spanish MINECO [RYC2011-07710, FPA2009-09017, SEV-2012-0249]
- IISN
- Belgian Federal Science Policy [P7/37]
- Fermi Research Alliance [DE-AC02-07CH11359]
- U.S. Department of Energy [DE-SC001363]
- National Science Foundation [PHY-1066293]
In this work we combine information from relic abundance, direct detection, cosmic microwave background, positron fraction, gamma rays, and colliders to explore the existing constraints on couplings between Dark Matter and Standard Model constituents when no underlying model or correlation is assumed. For de finiteness, we include independent vector-like effective interactions for each Standard Model fermion. Our results show that low Dark Matter masses below 20 GeV are disfavoured at the 3 sigma level with respect to higher masses, due to the tension between the relic abundance requirement and upper constraints on the Dark Matter couplings. Furthermore, large couplings are typically only allowed in combinations which avoid effective couplings to the nuclei used in direct detection experiments.
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