| 2 | Effect of resonant neutrino oscillation on TeV neutrino flavor ratio from choked GRBs显示文摘In the collapsar scenario of the long duration Gamma-Ray Bursts (GRBs),multi-TeV neutrino emission is predicted as the jet makes its way through the stellar envelope.Such a neutrino signal is also expected for more general 'failed' GRBs in which a putative jet is 'choked' by a heavy envelope.If the ν e →νμ neutrino oscillation parameters are in the atmospheric neutrino oscillation range,we show that the resonant oscillation of ν e νμ,τ can take place within the inner high density region of the choked jet progenitor with a heavy envelope,altering the ν flavor ratio on its surface to Φ s ν e:Φ s νμ:Φ s ντ =5:11:2.Considering vacuum oscillations of these neutrinos on their way to Earth,the final flavor ratio detected on Earth is further modified to either 1:1.095:1.095 for the large mixing angle solution to the solar neutrino data,or 1:1.3:1.3 for maximal mixing among the muon and tau neutrinos in the vacuum. | Sarira Sahu Bing Zhang | 2010 | Research in Astronomy and Astrophysics2010，10，10： | 0 |
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