Neutron-Proton-Converter Acceleration Mechanism at Subphotospheres of Relativistic Outflows
arXiv:1304.1945 · doi:10.1103/PhysRevLett.111.131103
Abstract
We study a type of particle acceleration that operates via neutron-proton conversion in inelastic nuclear collisions. This mechanism can be expected for relativistic shocks at subphotospheres if relativistic outflows contain neutrons. Using a test-particle approximation, we numerically calculate the energy spectrum and the efficiency of accelerated particles, and show that a good energy fraction of the nucleons can be accelerated. This mechanism may especially be relevant if the shock is radiation-mediated, and it would enhance the detectability of GeV-TeV neutrinos.
5 pages, 3 figures, published in PRL (submitted on 04/06/2013)
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- High-energy neutrinos from fallback accretion of binary neutron star merger remnants
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- Quasithermal Neutrinos from Rotating Protoneutron Stars Born during Core Collapse of Massive Stars
- High-energy neutrino emission from magnetised jets of rapidly rotating protomagnetars
- Neutron conversion-diffusion: a new model for structured short gamma-ray burst jets compatible with GRB 170817
- Quasithermal GeV neutrinos from neutron-loaded magnetized outflows in core-collapse supernovae: spectra and light curves
- Effects of Annihilation with Low-Energy Neutrinos on High-Energy Neutrinos from Binary Neutron Star Mergers and Rare Core-Collapse Supernovae
- Oscillations of High-Energy Cosmic Neutrinos in the Copious MeV Neutrino Background