A low-mass boson a, if it couples by a two-photon vertex, can be produced in the plasma decay process γₜ{→}γₗ+a and in the plasma coalescence process γₜ+γₗ{→}a, where γₜ and γₗ are transverse and longitudinal plasmons, respectively. The previously discussed γₜ{→}γₜ+a is kinematically suppressed. It is shown that a previous calculation of the Primakoff emission rate already includes these effects if T{}ω₀ (plasma frequency ω₀) so that astrophysical bounds on the axion-photon coupling remain unchanged.
No takes yet. Share an insight, caveat, or question.
Georg G. Raffelt (1988) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: