Generalized uncertainty principle and neutrino phenomenology

TL;DR

This paper explores how generalized uncertainty principles, arising from quantum gravity theories, affect neutrino oscillations, coherence, and interactions, and derives experimental constraints on these modifications.

Contribution

It analyzes the impact of two classes of generalized uncertainty principles on neutrino phenomenology and derives experimental bounds on their parameters.

Findings

Generalized uncertainty principles alter neutrino oscillation probabilities.

They impact neutrino coherence length and can mimic nonstandard interactions.

Current and future experiments constrain the parameters of these principles.

Abstract

Generalized uncertainty principles are effective changes to the Heisenberg uncertainty principle that emerge in several quantum gravity models. In the present letter, we study the consequences that two classes of these modifications yield on the physics of neutrinos. Besides analyzing the change in the oscillation probabilities that the generalized uncertainty principles entail, we assess their impact on the neutrino coherence length and their possible interpretation as nonstandard neutrino interactions. Constraints cast by present and planned neutrino experiments on the generalized uncertainty principles parameters are also derived.