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Long-Lived Staus at Neutrino Telescopes
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We perform an exhaustive study of the role neutrino telescopes could play in the discovery and exploration of supersymmetric extensions of the Standard Model with a long-lived stau next-to-lightest superparticle. These staus are produced in pairs by cosmic neutrino interactions in the Earth matter. We show that the background of stau events to the standard muon signal is negligible and plays no role in the determination of the cosmic neutrino flux. On the other hand, one can expect up to 50 pair events per year in a cubic kilometer detector such as IceCube, if the superpartner mass spectrum and the high-energy cosmic neutrino flux are close to experimental bounds.
Forward citations
Cited by 3 Pith papers
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Rare processes in ultrahigh-energy tau-lepton transport
Tau leptons at EeV energies produce muon pairs and neutral pions via rare processes, with energy-loss rates only ~0.6% and ~0.2% of electron pair production, yet muon pairs may yield detectable double-track signatures.
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Searching for Hidden Sector Particles at Neutrino Telescopes
IceCube could detect double-bang events from hidden sector particles produced via the neutrino or hypercharge portal, extending sensitivity to masses of about 1-20 GeV.
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Beyond standard model particles in the atmospheric flux: a long-lived stau example
Atmospheric stau production from squark decays is computed with Z-moments; predicted IceCube-Gen2 event rates are tiny and LHC bounds are more restrictive.
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