Probing generalized neutrino interactions with the DUNE Near Detector

Abstract

We explore the prospects of constraining general non standard interactions involving light mediators through elastic neutrino-electron scattering events at the DUNE Near Detector (ND). We furthermore consider the special cases of light vector mediators in motivated models such as $U(1{)}_{B-L}$, $U(1{)}_{L_{\mu }-L_{\tau }}$, $E_6$ and left-right symmetry. The present analysis is based on detailed Monte Carlo simulations of the expected DUNE-ND signal taking into account detector resolution effects, realistic backgrounds as well as On-Axis and Off-Axis neutrino spectra. We show that the high intensity neutrino beam available at Fermilab can place competitive constraints surpassing those of low-energy neutrino searches and direct detection dark matter experiments.

Comments: 28 pages, 10 figures, 2 tables| V2: new figure added and the rest updated, table II updated, typos in formulas corrected, results unchanged, matches published version in JHEP