Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-02-14
Pramana 65 (2005) 215-244
Physics
High Energy Physics
High Energy Physics - Phenomenology
41 pages in LaTex including 11 figures in PostScript, discussion on nucleons AMM interaction with magnetic field is added
Scientific paper
10.1007/BF02898612
The relativistic theory of the inverse beta-decay of polarized neutron, $\nu _{e} + n \to p + e ^{-}$, in strong magnetic field is developed. For the proton wave function we use the exact solution of the Dirac equation in the magnetic filed that enables us to account exactly for effects of the proton momentum quantization in the magnetic field and also for the proton recoil motion. The effect of nucleons anomalous magnetic moments in strong magnetic fields is also discussed. We examine the cross section for different energies and directions of propagation of the initial neutrino accounting for neutrons polarization. It is shown that in the super-strong magnetic field the totally polarized neutron matter is transparent for neutrinos propagating antiparallel to the direction of polarization. The developed relativistic approach can be used for calculations of cross sections of the other URCA processes in strong magnetic fields.
Shinkevich Sergey
Studenikin Alexander
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