Consistent Lorentz violation features from near-TeV IceCube neutrinos. (arXiv:1906.07329v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Huang_Y/0/1/0/all/0/1">Yanqi Huang</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Li_H/0/1/0/all/0/1">Hao Li</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Ma_B/0/1/0/all/0/1">Bo-Qiang Ma</a>

A recent proposal to associate 60~TeV to 2~PeV IceCube neutrino events with
gamma-ray bursts~(GRBs) indicates the Lorentz violation of cosmic neutrinos and
leads further to the $CPT$ symmetry violation between neutrinos and
antineutrinos. Here we find that another 12 northern hemisphere track events
possibly correlated with GRBs from three-year IceCube data satisfy the same
regularity at a lower energy scale around 1~TeV. The combined fitting indicates
a Lorentz violation scale ${E}_{rm LV}=(6.4pm 1.5)times10^{17}~{ rm GeV}$
and an intrinsic time difference ${Delta {t}_{rm in}=(-2.8pm
0.7)times10^2~{rm s}}$, from which we find an earlier emission of neutrinos
than photons at the GRB source. We also suggest analyzing neutrino events
detected a few minutes before the GRB trigger time to test the $CPT$ violation
of ultrahigh-energy neutrinos.

A recent proposal to associate 60~TeV to 2~PeV IceCube neutrino events with
gamma-ray bursts~(GRBs) indicates the Lorentz violation of cosmic neutrinos and
leads further to the $CPT$ symmetry violation between neutrinos and
antineutrinos. Here we find that another 12 northern hemisphere track events
possibly correlated with GRBs from three-year IceCube data satisfy the same
regularity at a lower energy scale around 1~TeV. The combined fitting indicates
a Lorentz violation scale ${E}_{rm LV}=(6.4pm 1.5)times10^{17}~{ rm GeV}$
and an intrinsic time difference ${Delta {t}_{rm in}=(-2.8pm
0.7)times10^2~{rm s}}$, from which we find an earlier emission of neutrinos
than photons at the GRB source. We also suggest analyzing neutrino events
detected a few minutes before the GRB trigger time to test the $CPT$ violation
of ultrahigh-energy neutrinos.

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