Probing a Supersymmetric Model for Neutrino Masses at Ultrahigh Energy Neutrino Telescopes

TL;DR

This paper explores a supersymmetric model predicting unique neutrino decay signatures at ultrahigh energy neutrino telescopes, highlighting potential detection prospects with future large-scale detectors.

Contribution

It introduces a bilinear R-Parity breaking SUSY model that predicts distinctive triple bang signatures at neutrino telescopes, expanding the search for supersymmetry in astrophysical observations.

Findings

Distinctive triple bang signature predicted for SUSY events

Signal size marginal at IceCube, promising for larger future detectors

Potential to detect supersymmetric neutrino decay signatures in ultrahigh energy regime

Abstract

A bilinear R-Parity breaking SUSY model for neutrino mass and mixing predicts the lightest superparticle to decay mainly into a pair of tau leptons or b quarks along with a neutrino for relatively light SUSY spectra. This leads to a distinctive triple bang signature of SUSY events at ultrahigh energy neutrino telescopes like IceCube or Antares. While the expected signal size is only marginal at IceCube, it will be promising for a future multi-km^3 size neutrino telescope.