Emission of Axions in strongly magnetized star

Abstract

We show that the axion decay constant does not get any correction at any order by external magnetic fields. On the other hand, in the context of the Wilsonian effective action under external magnetic fields, the axial currents get a finite correction. We then calculate the effect of strong magnetic fields $B>10^{18}G$ on the axion-nucleon coupling and find that if $B\gtrsim 10^{20}G$ in strongly magnetized neutron and white dwarf stars, the emission rate of axions is enhanced by several orders of magnitude.

11 pages, RevTeX, 4 Postscript figures, uses epsf.sty

References in corpus (7)

• Quark condensate in a magnetic field
• Quantizing magnetic field and quark-hadron phase transition in a neutron star
• Dense nuclear matter in a strong magnetic field
• A Fresh Look at Axions and SN 1987A
• Chiral Symmetry Breaking in a Uniform External Magnetic Field
• Magnetic Catalysis in Quantum Electrodynamics
• Axion cyclotron emissivity of magnetized white dwarfs and neutron stars

Cited by in corpus (7)

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• Anomalous currents in dense matter under a magnetic field
• Bulk Viscosity of Magnetized Neutron Star Matter
• Effect of Magnetic Field on the Phase Transition from Nuclear Matter to Quark Matter during Proto-Neutron Star Evolution
• Radial Oscillations of Neutron Stars in Strong Magnetic Fields