COHERENT constraints on nonstandard neutrino interactions

By J. Liao, D. Marfatia. 2017

152 citations recorded by the source corpus.

Abstract Coherent elastic neutrino–nucleus scattering consistent with the standard model has been observed by the COHERENT experiment. We study nonstandard neutrino interactions using the detected spectrum. For the case in which the nonstandard interactions (NSI) are induced by a vector mediator lighter than 50 MeV, we obtain constraints on the coupling of the mediator. For a heavier mediator, we find that degeneracies between the NSI parameters severely weaken the constraints. However, these degeneracies do not affect COHERENT constraints on the effective NSI parameters for matter propagation in the Earth.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/136bf871b7560216793505241e630918490d3779

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In Nuclear and High Energy Physics

1. Y. Farzan
2. M. Tórtola
3. T. Han
4. Jordi Salvado
5. I. Mocioiu
6. I. Martinez-Soler
7. I. Shoemaker
8. A. Gouvea

Citations in the corpus

• Neutrino Oscillations and Non-standard Interactions (2017, background): “[122], taking a universal coupling of Z ′ to SM fermions finds that”
• Neutrino non-standard interactions: A status report (2019, background): “[19, 20, 273, 308], one can summarize the current COHERENT constraints on NSIs, which are that generally around O(0.”