1998/03/30 by Н. В. Михеев, N. V. Mikheev, G. Raffelt +2
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #hep-ph
paper · pdf · doi:10.1103/physrevd.58.055008
published as Phys.Rev. D58 (1998) 055008 · 5 pages, REVTEX, 3 eps figs included
arxiv created 1998/03/30 · openalex publication_date 1998/07/30 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Magnetic fields mix axions with photons, allowing for the cyclotron process e^\ensuremath-\ensuremath→e^\ensuremath-a by virtue of an intermediate plasmon even if axions do not couple to electrons at the tree level. The axion and longitudinal-plasmon dispersion relations always cross for a certain wave number, leading to a resonant enhancement of this process. Even then, however, it cannot quite compete with the usual nucleon processes in a supernova core. The well-known axion window 10^\ensuremath-5eV\ensuremath\lesssimma\ensuremath\lesssim10^\ensuremath-2eV remains open and axions may still constitute the cosmic dark matter.