Neutrino-Pair Bremsstrahlung in Collisions between Neutrons and Nuclei in Neutron Star Matter
Abstract
In neutron star matter over the density range 4.3×1011<-ϱ≤4×1014 g cm-3 there are both free neutrons and neutron-rich nuclei. If there is a weak neutral current interaction between neutrinos and neutrons, as suggested by recent experiments, then when neutrons scatter off nuclei they may emitvbar v pairs as bremsstrahlung radiation. We calculate the associated emissivity for degenerate (but not superfluid) neutrons and uncorrelated (not crystallized) nuclei. We find that, under these conditions. this emissivity can under some conditions compare with that calculated by Festa and Ruderman forvbar v bremsstrahlung in electron-nucleus collisions.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- May 1977
- DOI:
- 10.1007/BF00643047
- Bibcode:
- 1977Ap&SS..48..159F
- Keywords:
-
- Bremsstrahlung;
- Neutrinos;
- Neutron Stars;
- Nuclear Reactions;
- Pair Production;
- Hadrons;
- Neutrons;
- Scattering Cross Sections;
- Stellar Evolution;
- Astrophysics