Solar axion flux from the axion-electron coupling

Journal Article · Sun Dec 01 00:00:00 EST 2013 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2013/12/008· OSTI ID:22369877

Redondo, Javier ^[1]

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1. Arnold Sommerfeld Center, Ludwig-Maximilians-Universität, Theresienstr. 37, D-80333 München (Germany)

In non-hadronic axion models, where axions couple to electrons at tree level, the solar axion flux is completely dominated by the ABC reactions (Atomic recombination and deexcitation, Bremsstrahlung and Compton). In this paper the ABC flux is computed from available libraries of monochromatic photon radiative opacities (OP, LEDCOP and OPAS) by exploiting the relations between axion and photon emission cross sections. These results turn to be ∼ 30% larger than previous estimates due to atomic recombination (free-bound electron transitions) and deexcitation (bound-bound), which where not previously taken into account.

• OSTI ID: 22369877
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 12; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
AXIONS
BREMSSTRAHLUNG
DE-EXCITATION
ELECTRONS
HADRONS
MONOCHROMATIC RADIATION
OPACITY
PHOTON EMISSION
PHOTONS
RECOMBINATION