Details

Autor(en) / Beteiligte

• Huang, Yanqi
• Li, Hao
• Ma, Bo-Qiang

Titel

Consistent Lorentz violation features from near-TeV IceCube neutrinos

Ist Teil von

• Physical review. D, 2019-06, Vol.99 (12), p.1, Article 123018

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 ELV=(6.4±1.5)×1017  GeV and an intrinsic time difference Δtin=(−2.8±0.7)×102  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.