Superheavy Particle Origin of IceCube PeV Neutrino Events
High Energy Physics - Phenomenology
2013-10-29 v3 High Energy Astrophysical Phenomena
High Energy Physics - Experiment
Abstract
We interpret the PeV shower events observed by the IceCube collaboration as an s-channel enhancement of neutrino-quark scattering by a leptoquark that couples to the tau-flavor and light quarks. With a leptoquark mass of ~ 0.6 TeV and a steep 1/E^{2.3} neutrino flux, charged-current scattering gives shower events at ~ 1 PeV and neutral-current scattering gives shower events at ~ 0.5 PeV. This mechanism is also consistent with the paucity of muon-track events above 100 TeV.
Keywords
Cite
@article{arxiv.1305.6907,
title = {Superheavy Particle Origin of IceCube PeV Neutrino Events},
author = {Vernon Barger and Wai-Yee Keung},
journal= {arXiv preprint arXiv:1305.6907},
year = {2013}
}
Comments
10 pages, 4 figures. The version appears in Phys. Lett. B, October 2013