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arXiv · hep-ph/9507345

Pseudoscalar Conversion and X-rays from the Sun

Eric D. Carlson·Li-Sheng Tseng
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Abstract

We investigate the detection of a pseudoscalar $ϕ$ that couples electromagnetically via an interaction ${1\over4}g ϕF {\tilde F}$. In particular, we focus on the conversion of pseudoscalars produced in the sun's interior in the presence of the sun's external magnetic dipole field and sunspot-related magnetic fields. We find that the sunspot approach is superior. Measurements by the SXT on the Yohkoh satellite can measure the coupling constant down to $g=0.5$--$1 \times 10^{-10}\,\rm GeV^{-1}$, provided the pseudoscalar mass $m < 7{\times} 10^{-6}\,$eV, which makes it competitive with other astrophysical approaches.

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Eric D. Carlson, Li-Sheng Tseng. 1995-07-19. Pseudoscalar Conversion and X-rays from the Sun. https://doi.org/10.1016/0370-2693(95)01250-8

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