Neutrinos from Decaying Muons, Pions, Kaons and Neutrons in Gamma Ray Bursts

Understand

In the internal shock model of gamma ray bursts ultrahigh energy muons, pions, neutrons and kaons are likely to be produced in the interactions of shock accelerated relativistic protons with low energy photons (KeV-MeV).

• These particles subsequently decay to high energy neutrinos/antineutrinos and other secondaries.
• In the high internal magnetic fields of gamma ray bursts, the ultrahigh energy charged particles ($\mu^+$, $\pi^+$, $K^+$) lose energy significantly due to synchrotron radiations before decaying into secondary high energy neutrinos and antineutrinos.
• The relativistic neutrons decay to high energy antineutrinos, protons and electrons.