Fitting to data of superluminal neutrinos with phenomenological scenarios

TL;DR

This paper evaluates various phenomenological models of superluminal neutrinos against experimental data to determine which best explains the energy dependence of neutrino velocities, highlighting the Coleman-Glashow scenario and a near-zero power-law model.

Contribution

It compares multiple phenomenological models of superluminal neutrinos using experimental data, identifying the most consistent scenarios with observations.

Findings

The energy-independent Coleman-Glashow model fits most data but not SN1987A.

A near-zero power-law model can explain both SN1987A and other experiments.

The data suggest no strong energy dependence in superluminal neutrino velocities.

Abstract

We test several phenomenological scenarios of faster-than-light neutrinos, by fitting to the experimental data from OPERA, MINOS and Fermilab79. Our purpose is to see, from the perspective of the current data, whether or not the speed of the superluminal neutrino depends on its energy. We show that the Coleman-Glashow scenario in which the velocity of the neutrino is free of the energy fits the data best. However, the result of SN1987A cannot be explained by this model. We find that a power-law model with the power close to zero can simultaneously explain the results of SN1987A and OPERA+MINOS+Fermilab79.