Reconnection of magnetic fields in neutron stars driven by the electron mass term in the triangle anomaly

Abstract

The Adler-Bell-Jackiw anomaly for massive particles is studied in an external magnetic field. The contributions of the mean spin and the pseudoscalar are accounted for in the quasiclassical approximation. The equation for the evolution of the magnetic helicity with the new quantum corrections is derived. We show that the quantum contribution to the helicity evolution can overcome the classical one in the dense degenerate matter which can be present in the core of a neutron star. The application of the obtained results for the interpretation of magnetar bursts are discussed.

arXiv comment6 pages in pdflatex, 1 pdf figure; contribution to the proceedings of the 4th International conference on particle physics and astrophysics (October 22-26, 2018, Moscow, Russia)

References in corpus (15)

• Neutron Star Structure and the Equation of State
• Hydrodynamics with Triangle Anomalies
• Magnetars
• Anomalous Axion Interactions and Topological Currents in Dense Matter
• Neutrino Conversions in a Polarized Medium
• Laminar and turbulent dynamos in chiral magnetohydrodynamics. II. Simulations
• Axial Ward identity and the Schwinger mechanism -- Applications to the real-time chiral magnetic effect and condensates
• Chiral magnetohydrodynamic turbulence in core-collapse supernovae
• Axial anomaly: the modern status
• Role of particle masses in the magnetic field generation driven by the parity violating interaction
• Relaxation of the chiral imbalance and the generation of magnetic fields in magnetars
• Magnetic helicity evolution in a neutron star accounting for the Adler-Bell-Jackiw anomaly
• Relaxation of the chiral chemical potential in the dense matter of a neutron star
• Chiral magnetohydrodynamics for heavy-ion collisions
• Equilibrium electric current of massive electrons with anomalous magnetic moments induced by a magnetic field and the electroweak interaction with matter