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Relaxation of the chiral imbalance and the generation of magnetic fields in magnetars

  • Nuclei, Particles, Fields, Gravitation, and Astrophysics
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Abstract

The model for the generation of magnetic fields in a neutron star, based on the magnetic field instability caused by the electroweak interaction between electrons and nucleons, is developed. Using the methods of the quantum field theory, the helicity flip rate of electrons in their scattering off protons in dense matter of a neutron star is calculated. The influence of the electroweak interaction between electrons and background nucleons on the process of the helicity flip is studied. The kinetic equation for the evolution of the chiral imbalance is derived. The obtained results are applied for the description of the magnetic fields evolution in magnetars.

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Authors and Affiliations

  1. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation (IZMIRAN), Troitsk, Moscow, 108840, Russia

    M. S. Dvornikov

  2. Physics Faculty, National Research Tomsk State University, Tomsk, 634050, Russia

    M. S. Dvornikov

  3. Institute for Theoretical Physics, University of Hamburg, Hamburg, D-22761, Germany

    M. S. Dvornikov

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  1. M. S. Dvornikov
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Correspondence to M. S. Dvornikov.

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The article was translated by the authors.

Published in Russian in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 150, No. 6, pp. 1113–1126.

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Dvornikov, M.S. Relaxation of the chiral imbalance and the generation of magnetic fields in magnetars. J. Exp. Theor. Phys. 123, 967–978 (2016). https://doi.org/10.1134/S1063776116150024

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  • DOI: https://doi.org/10.1134/S1063776116150024

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