TY - JOUR
T1 - Neutron-proton-converter acceleration mechanism at subphotospheres of relativistic outflows
AU - Kashiyama, Kazumi
AU - Murase, Kohta
AU - Mészáros, Peter
PY - 2013/9/26
Y1 - 2013/9/26
N2 - 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 be especially relevant if the shock is radiation mediated, and it would enhance the detectability of GeV-TeV neutrinos.
AB - 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 be especially relevant if the shock is radiation mediated, and it would enhance the detectability of GeV-TeV neutrinos.
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U2 - 10.1103/PhysRevLett.111.131103
DO - 10.1103/PhysRevLett.111.131103
M3 - Article
AN - SCOPUS:84884689918
SN - 0031-9007
VL - 111
JO - Physical review letters
JF - Physical review letters
IS - 13
M1 - 131103
ER -