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arXiv · 0807.3482

Search for solar hadronic axions produced by a bremsstrahlung-like process

D. Kekez·A. Ljubicic·Z. Krecak·M. Krcmar
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Abstract

We have searched for hadronic axions which may be produced in the Sun by a bremsstrahlung-like process, and observed in the HPGe detector by an axioelectric effect. A conservative upper limit on the hadronic axion mass m_a < 334 eV at 95% C.L. is obtained. Our experimental approach is based on the axion-electron coupling and it does not include the axion-nucleon coupling, which suffers from the large uncertainties related to the estimation of the flavor-singlet axial-vector matrix element.

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D. Kekez, A. Ljubicic, Z. Krecak, M. Krcmar. 2008-12-22. Search for solar hadronic axions produced by a bremsstrahlung-like process. https://doi.org/10.1016/j.physletb.2008.12.033

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