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arXiv · hep-ph/9803486

Axion Emission by Magnetic-Field Induced Conversion of Longitudinal Plasmons

N. V. Mikheev·G. Raffelt·L. A. Vassilevskaya
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Abstract

Magnetic fields mix axions with photons, allowing for the cyclotron process e -> e + a by virtue of an intermediate plasmon even if axions do not couple to electrons at 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^{-5} eV < m_a < 10^{-2} eV remains open and axions may still constitute the cosmic dark matter.

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N. V. Mikheev, G. Raffelt, L. A. Vassilevskaya. 1998-03-30. Axion Emission by Magnetic-Field Induced Conversion of Longitudinal Plasmons. https://doi.org/10.1103/physrevd.58.055008

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