首页|Ultra-high energy cosmic neutrinos from gamma-ray bursts
Ultra-high energy cosmic neutrinos from gamma-ray bursts
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Based on the recent association of IceCube TeV and PeV neutrino events with gamma-ray bursts(GRBs)by considering the Lorentz violation of neutrinos,we provide a new estimate on the GRB neutrino flux with a more significant result compared to the previous constraint by the IceCube Collaboration.Among these 24 neutrino"shower"events above 60 TeV,12 events are associated with GRBs.Such a result is compatible with the prediction from GRB fireball models.Analysis of track events provides a consistent result with the shower events to associate high energy cosmic neutrinos with GRBs under the same Lorentz violation features of neutrinos.We also make a background estimation and reveal GRBs as a significant source for the ultra-high energy IceCube neutrino events.Our work supports the Lorentz violation and CPT-violation of neutrinos,indicating new physics beyond relativity.
Cosmic neutrinoGamma-ray burstLorentz invariance violationNeutrino and anti-neutrino asymmetryCPT-violation of neutrinos
Yanqi Huang、Bo-Qiang Ma
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School of Physics,Peking University,Beijing 100871,China
Center for High Energy Physics,Peking University,Beijing 100871,China
Collaborative Innovation Center of Quantum Matter,Beijing 100871,China
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