Nucleon-Nucleon Scattering in a Strong External Magnetic Field and the Neutrino Emissivity
arXiv:1010.3906 · doi:10.1103/PhysRevD.82.105015
Abstract
The nucleon-nucleon scattering in a large magnetic background is considered to find its potential to change the neutrino emissivity of the neutron stars. For this purpose we consider the one-pion-exchange approximation to find the NN cross-section in a background field as large as . We show that the NN cross-section in neutron stars with temperatures in the range 0.1-5 \texttt{MeV} can be changed up to the one order of magnitude with respect to the one in the absence of the magnetic field. In the limit of the soft neutrino emission the neutrino emissivity can be written in terms of the NN scattering amplitude therefore the large magnetic fields can dramatically change the neutrino emissivity of the neutron stars as well.
arXiv comment21 pages, 5 figures, to appear in PRD
References in corpus (12)
- The strongest cosmic magnets: Soft Gamma-ray Repeaters and Anomalous X-ray Pulsars
- Matter in Strong Magnetic Fields
- The Magnificent Seven: Magnetic fields and surface temperature distributions
- Supernova Neutrino Opacity from Nucleon-Nucleon Bremsstrahlung and Related Processes
- 2D Cooling of Magnetized Neutron Stars
- Neutrino and axion emissivities of neutron stars from nucleon-nucleon scattering data
- Extra dimensions, SN1987a, and nucleon-nucleon scattering data
- Reduced Neutrino Opacities and the SN 1987A Signal
- Rates of Neutrino Absorption on Nucleons and the Reverse Processes in Strong Magnetic Fields
- Pair production with neutrinos in an intense background magnetic field
- Neutrino emission rates in highly magnetized neutron stars revisited
- The Neutrino Emissivity of Strange Stars with Ultra Strong Magnetic Field