期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP05(2019)173
关键词
Effective Field Theories; Neutrino Physics
资金
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [16/02636-8]
- European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant [690575, 674896]
- Marie Sklodowska-Curie Individual Fellowship of the European Commission's Horizon 2020 Programme [745954 Tau-SYNERGIES]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [16/02636-8] Funding Source: FAPESP
We study constraints on the Standard Model Effective Field Theory (SMEFT) from neutrino oscillations in short-baseline reactor experiments. We calculate the survival probability of reactor antineutrinos at the leading order in the SMEFT expansion, that is including linear effects of dimension-6 operators. It is shown that, at this order, reactor experiments alone cannot probe charged-current contact interactions between leptons and quarks that are of the (pseudo)vector (V +/- A) or pseudo-scalar type. We also note that flavor-diagonal (pseudo)vector coefficients do not have observable effects in oscillation experiments. In this we reach novel or different conclusions than prior analyses of non-standard neutrino interactions. On the other hand, reactor experiments offer a unique opportunity to probe tensor and scalar SMEFT operators that are off-diagonal in the lepton-flavor space. We derive constraints on the corresponding SMEFT parameters using the most recent data from the Daya Bay and RENO experiments.
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