COHERENT constraints on nonstandard neutrino interactions
High Energy Physics - Phenomenology
2017-10-30 v2 High Energy Physics - Experiment
Nuclear Experiment
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.
Keywords
Cite
@article{arxiv.1708.04255,
title = {COHERENT constraints on nonstandard neutrino interactions},
author = {Jiajun Liao and Danny Marfatia},
journal= {arXiv preprint arXiv:1708.04255},
year = {2017}
}
Comments
11 pages, 4 figures. Version to appear in PLB