Test of Lorentz Violation with Astrophysical Neutrino Flavor in IceCube

TL;DR

This paper explores IceCube's potential to detect tiny Lorentz violation effects in astrophysical neutrinos, reaching sensitivities near the Planck scale, which could indicate new physics beyond current theories.

Contribution

It demonstrates IceCube's capability to probe Lorentz violation effects at the Planck scale using astrophysical neutrino data, a novel application of high-energy neutrino observations.

Findings

IceCube can test Lorentz violation at the Planck scale.

Astrophysical neutrino data are sensitive to quantum gravity effects.

Potential for discovering new physics beyond the Standard Model.

Abstract

Astrophysical high-energy neutrinos observed by IceCube are sensitive to small effects in a vacuum such as those motivated from quantum gravity theories. Here, we discuss the potential sensitivity of Lorentz violation from the diffuse astrophysical neutrino data in IceCube. The estimated sensitivity reaches the Planck scale physics motivated region, providing IceCube with real discovery potential of Lorentz violation.