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Title

Improved global fit to Non-Standard neutrino Interactions using COHERENT energy and timing data

AuthorsColoma, Pilar ; Esteban, I.; Gonzalez-Garcia, M.C.; Maltoni, Michele
Issue DateFeb-2020
PublisherInstitute of Physics Publishing
CitationJournal of High Energy Physics, 2: 023 (2020)
AbstractWe perform a global fit to neutrino oscillation and coherent neutrino-nucleus scattering data, using both timing and energy information from the COHERENT experiment. The results are used to set model-independent bounds on four-fermion effective operators inducing non-standard neutral-current neutrino interactions. We quantify the allowed ranges for their Wilson coefficients, as well as the status of the LMA-D solution, for a wide class of new physics models with arbitrary ratios between the strength of the operators involving up and down quarks. Our results are presented for the COHERENT experiment alone, as well as in combination with the global data from oscillation experiments. We also quantify the dependence of our results for COHERENT with respect to the choice of quenching factor, nuclear form factor, and the treatment of the backgrounds.
Publisher version (URL)http://dx.doi.org/10.1007/JHEP02(2020)023
URIhttp://hdl.handle.net/10261/215918
DOIhttp://dx.doi.org/10.1007/JHEP02(2020)023
Identifiersdoi: 10.1007/JHEP02(2020)023
issn: 1029-8479
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