期刊
PHYSICAL REVIEW D
卷 101, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.115013
关键词
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资金
- German Research Foundation (DFG) [EXC-1098, KO 4820/1-1, FOR 2239, GRK 1581]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme [637506]
- United States Department of Energy [DE-AC02-07CH11359]
- FPU program fellowship [FPU15/03697]
- EU Network FP10ITN ELUSIVES [H2020MSCA-ITN-2015-674896]
- EU Network INVISIBLES-PLUS [H2020-MSCA-RISE-2015-690575]
- MINECO [FPA2016-76005-C2-1-P]
- Alexander von Humboldt Foundation
- German Federal Ministry of Education and Research
The MiniBooNE experiment has observed a significant excess of electron neutrinos in a muon neutrino beam, in conflict with standard neutrino oscillations. We discuss the possibility that this excess is explained by a sterile neutrino with a mass similar to 1 keV that decays quickly back into active neutrinos plus a new light boson. This scenario satisfies terrestrial and cosmological constraints because it has neutrino self-interactions built-in. Accommodating also the LSND, reactor, and gallium anomalies is possible, but requires an extension of the model to avoid cosmological limits.
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