Tensorial NSI and Unparticle physics in neutrino scattering

TL;DR

This paper investigates constraints on tensorial couplings in neutrino-electron and neutrino-nucleus scattering, analyzing non-standard interactions and Unparticle physics using recent experimental data.

Contribution

It provides the first constraints on electron anti-neutrino tensorial couplings in both NSI and Unparticle frameworks based on TEXONO data.

Findings

Current bounds on electron anti-neutrino-electron tensorial couplings.

Potential to measure neutrino-nucleus coherent scattering for the first time.

Discussion on constraining electron anti-neutrino-quark tensorial couplings.

Abstract

We have analyzed the electron anti-neutrino scattering off electrons and the electron anti-neutrino-nuclei coherent scattering in order to obtain constraints on tensorial couplings. We have studied the formalism of non-standard interactions (NSI), as well as the case of Unparticle physics. For our analysis we have focused on the recent TEXONO collaboration results and we have obtained current constraints to possible electron anti-neutrino-electron tensorial couplings in both new physics formalisms. The possibility of measuring for the first time electron anti-neutrino-nucleus coherent scattering and its potential to further constrain electron anti-neutrino-quark tensorial couplings is also discussed.