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arXiv · 2206.05789

Search for solar axions via axion-photon coupling with the Majorana Demonstrator

I. J. Arnquist·F. T. Avignone III·A. S. Barabash·C. J. Barton·K. H. Bhimani·E. Blalock·B. Bos·M. Busch·M. Buuck·T. S. Caldwell·Y-D. Chan·C. D. Christofferson·P. -H. Chu·M. L. Clark·C. Cuesta·J. A. Detwiler·Yu. Efremenko·H. Ejiri·S. R. Elliott·G. K. Giovanetti·M. P. Green·J. Gruszko·I. S. Guinn·V. E. Guiseppe·C. R. Haufe·R. Henning·D. Hervas Aguilar·E. W. Hoppe·A. Hostiuc·M. F. Kidd·I. Kim·R. T. Kouzes·T. E. Lannen V·A. Li·A. M. Lopez·J. M. López-Castaño·E. L. Martin·R. D. Martin·R. Massarczyk·S. J. Meijer·T. K. Oli·G. Othman·L. S. Paudel·W. Pettus·A. W. P. Poon·D. C. Radford·A. L. Reine·K. Rielage·N. W. Ruof·D. C. Schaper·D. Tedeschi·R. L. Varner·S. Vasilyev·J. F. Wilkerson·C. Wiseman·W. Xu·C. -H. Yu·B. X. Zhu
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Abstract

Axions were originally proposed to explain the strong-CP problem in QCD. Through the axion-photon coupling, the Sun could be a major source of axions, which could be measured in solid state detection experiments with enhancements due to coherent Primakoff-Bragg scattering. The Majorana Demonstrator experiment has searched for solar axions with a set of $^{76}$Ge-enriched high purity germanium detectors using a 33 kg-yr exposure collected between Jan. 2017 and Nov. 2019. A temporal-energy analysis gives a new limit on the axion-photon coupling as $g_{a\gamma}<1.45\times 10^{-9}$ GeV$^{-1}$ (95% C.I.) for axions with mass up to 100 eV/$c^2$. This improves laboratory-based limits between about 1 eV/$c^2$ and 100 eV/$c^2$.

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I. J. Arnquist, F. T. Avignone III, A. S. Barabash, C. J. Barton, K. H. Bhimani, E. Blalock, B. Bos, M. Busch, M. Buuck, T. S. Caldwell, Y-D. Chan, C. D. Christofferson, P. -H. Chu, M. L. Clark, C. Cuesta, J. A. Detwiler, Yu. Efremenko, H. Ejiri, S. R. Elliott, G. K. Giovanetti, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, C. R. Haufe, R. Henning, D. Hervas Aguilar, E. W. Hoppe, A. Hostiuc, M. F. Kidd, I. Kim, R. T. Kouzes, T. E. Lannen V, A. Li, A. M. Lopez, J. M. López-Castaño, E. L. Martin, R. D. Martin, R. Massarczyk, S. J. Meijer, T. K. Oli, G. Othman, L. S. Paudel, W. Pettus, A. W. P. Poon, D. C. Radford, A. L. Reine, K. Rielage, N. W. Ruof, D. C. Schaper, D. Tedeschi, R. L. Varner, S. Vasilyev, J. F. Wilkerson, C. Wiseman, W. Xu, C. -H. Yu, B. X. Zhu. 2022-06-12. Search for solar axions via axion-photon coupling with the Majorana Demonstrator. https://doi.org/10.1103/physrevlett.129.081803

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