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

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 chital imbalance is derived. The obtained results are applied for the description of the magnetic fields evolution in magnetars.

20 pages in pdflatex, 5 pdf figures; minimal changes, matches published version

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Cited by in corpus (12)

• Energy Conservation and the Chiral Magnetic Effect
• Chiral anomalous processes in magnetospheres of pulsars and black holes
• Magnetic helicity evolution in a neutron star accounting for the Adler-Bell-Jackiw anomaly
• Magnetic fields in turbulent quark matter and magnetar bursts
• Permanent mean spin source of the chiral magnetic effect in neutron stars
• Gravitational waves generation in turbulent hypermagnetic fields before the electroweak phase transition
• Magnetic helicity in plasma of chiral fermions electroweakly interacting with inhomogeneous matter
• Chiral effects and Joule heating in hot and dense matter
• Equilibrium electric current of massive electrons with anomalous magnetic moments induced by a magnetic field and the electroweak interaction with matter
• Magnetic helicity in rotating neutron stars
• Anomalous Dynamical Screening of Relativistic Plasma in a Magnetic Field
• Reconnection of magnetic fields in neutron stars driven by the electron mass term in the triangle anomaly