Tracing Cosmic accelerators with Decaying Neutrons

Abstract

Ultrahigh energy neutrons and pions are likely to be produced in particle interactions inside cosmic ray sources and subsequently decay to neutrinos and other secondary particles (${\pi }^{\pm }\to {\mu }^{\pm }{\nu }_{\mu }({\bar{\nu }}_{\mu }),{\mu }^{\pm }\to e^{\pm }{\bar{\nu }}_{\mu }({\nu }_{\mu }){\nu }_e({\bar{\nu }}_e)$). In high magnetic fields of the cosmic acceleration sites, the ultrahigh energy charged particles may lose energy significantly due to synchrotron radiation before decay. We show that for gamma ray bursts in the internal shock model the flux of very high energy antineutrinos (${\bar{\nu }}_e$) produced from decaying ultrahigh energy neutrons can be more than the total neutrino flux produced in pion decay depending on the values of their Lorentz factors, luminosities and variability times.

version published in Phys. Rev. D

References in corpus (7)

• Neutrino Spectra from Low and High Luminosity Populations of Gamma Ray Bursts
• High energy radiation from Centaurus A
• Fermi detection of delayed GeV emission from the short GRB 081024B
• Prospects for GRB Science with the Fermi Large Area Telescope
• Ultra-high energy Neutrinos from Centaurus A and the Auger hot spot
• Recent results from Yakutsk experiment: development of EAS, energy spectrum and primary particle mass composition in the energy region of 10^15-10^19 eV
• Identifying Nearby UHECR Accelerators using UHE (and VHE) Photons

Cited by in corpus (3)

• Probing CP violation with the three years ultra-high energy neutrinos from IceCube
• Neutrinos from Decaying Muons, Pions, Kaons and Neutrons in Gamma Ray Bursts
• Neutrinos from Cosmic Accelerators Including Magnetic Field and Flavor Effects