期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP08(2018)180
关键词
Beyond Standard Model; Neutrino Physics; Solar and Atmospheric Neutrinos
资金
- U.S.A.-NSF [PHY-1620628]
- EU Network FP10 ITN ELUSIVES [H2020-MSCA-ITN-2015-674896]
- EU Network INVISIBLES-PLUS [H2020-MSCA-RISE-2015-690575]
- MINECO [FPA2016-76005-C2-1-P]
- MINECO/FEDER-UE [FPA2015-65929-P, FPA2016-78645-P]
- Maria de Maetzu program of ICCUB [MDM-2014-0367]
- Severo Ochoa program of IFT [SEV-2016-0597]
- FPU program fellowship [FPU15/03697]
We quantify our present knowledge of the size and flavor structure of non-standard neutrino interactions which affect the matter background in the evolution of solar, atmospheric, reactor and long-baseline accelerator neutrinos as determined by a global analysis of oscillation data both alone and in combination with the results on coherent neutrino-nucleus scattering from the COHERENT experiment. We consider general neutral current neutrino interactions with quarks whose lepton-flavor structure is independent of the quark type. We study the dependence of the allowed ranges of non-standard interaction coefficients, the status of the LMA-D solution, and the determination of the oscillation parameters on the relative strength of the non-standard couplings to up and down quarks. Generically we find that the conclusions are robust for a broad spectrum of up-to-down strengths, and we identify and quantify the exceptional cases related to couplings whose effect in neutrino propagation in the Earth or in the Sun is severely suppressed. As a result of the study we provide explicit constraints on the effective couplings which parametrize the non-standard Earth matter potential relevant for long-baseline experiments.
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