CAST constraints on the axion-electron coupling
Abstract
In non-hadronic axion models, which have a tree-level axion-electron interaction, the Sun produces a strong axion flux by bremsstrahlung, Compton scattering, and axio- recombination, the “BCA processes.” Based on a new calculation of this flux, including for the first time axio-recombination, we derive limits on the axion-electron Yukawa coupling gae and axion-photon interaction strength gaγ using the CAST phase-I data (vacuum phase). For ma ≲ 10 meV/c2 we find gaγ gae < 8.1 × 10–23 GeV–1 at 95% CL. We stress that a next-generation axion helioscope such as the proposed IAXO could push this sensitivity into a range beyond stellar energy-loss limits and test the hypothesis that white-dwarf cooling is dominated by axion emission.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- CAST Collaboration
- OSTI Identifier:
- 1240066
- Report Number(s):
- LLNL-JRNL-621572
Journal ID: ISSN 1475-7516
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Cosmology and Astroparticle Physics
- Additional Journal Information:
- Journal Volume: 2013; Journal Issue: 05; Journal ID: ISSN 1475-7516
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; axions; helioscopes; sun; magnetic fields; white dwarfs
Citation Formats
Barth, K., Belov, A., Beltran, B., Bräuninger, H., Carmona, J. M., Collar, J. I., Dafni, T., Davenport, M., Lella, L. Di, Eleftheriadis, C., Englhauser, J., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., Franz, J., Friedrich, P., Galán, J., García, J. A., Geralis, T., Giomataris, I., Gninenko, S., Gómez, H., Hasinoff, M. D., Heinsius, F. H., Hoffmann, D. H.H, Irastorza, I. G., Jacoby, J., Jakovčić, K., Kang, D., Königsmann, K., Kotthaus, R., Kousouris, K., Krčmar, M., Kuster, M., Lakić, B., Liolios, A., Ljubičić, A., Lutz, G., Luzón, G., Miller, D. W., Papaevangelou, T., Pivovaroff, M. J., Raffelt, G., Redondo, J., Riege, H., Rodríguez, A., Ruz, J., Savvidis, I., Semertzidis, Y., Stewart, L., Bibber, K. Van, Vieira, J. D., Villar, J. A., Vogel, J. K., Walckiers, L., and Zioutas, K. CAST constraints on the axion-electron coupling. United States: N. p., 2013.
Web. doi:10.1088/1475-7516/2013/05/010.
Barth, K., Belov, A., Beltran, B., Bräuninger, H., Carmona, J. M., Collar, J. I., Dafni, T., Davenport, M., Lella, L. Di, Eleftheriadis, C., Englhauser, J., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., Franz, J., Friedrich, P., Galán, J., García, J. A., Geralis, T., Giomataris, I., Gninenko, S., Gómez, H., Hasinoff, M. D., Heinsius, F. H., Hoffmann, D. H.H, Irastorza, I. G., Jacoby, J., Jakovčić, K., Kang, D., Königsmann, K., Kotthaus, R., Kousouris, K., Krčmar, M., Kuster, M., Lakić, B., Liolios, A., Ljubičić, A., Lutz, G., Luzón, G., Miller, D. W., Papaevangelou, T., Pivovaroff, M. J., Raffelt, G., Redondo, J., Riege, H., Rodríguez, A., Ruz, J., Savvidis, I., Semertzidis, Y., Stewart, L., Bibber, K. Van, Vieira, J. D., Villar, J. A., Vogel, J. K., Walckiers, L., & Zioutas, K. CAST constraints on the axion-electron coupling. United States. https://doi.org/10.1088/1475-7516/2013/05/010
Barth, K., Belov, A., Beltran, B., Bräuninger, H., Carmona, J. M., Collar, J. I., Dafni, T., Davenport, M., Lella, L. Di, Eleftheriadis, C., Englhauser, J., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., Franz, J., Friedrich, P., Galán, J., García, J. A., Geralis, T., Giomataris, I., Gninenko, S., Gómez, H., Hasinoff, M. D., Heinsius, F. H., Hoffmann, D. H.H, Irastorza, I. G., Jacoby, J., Jakovčić, K., Kang, D., Königsmann, K., Kotthaus, R., Kousouris, K., Krčmar, M., Kuster, M., Lakić, B., Liolios, A., Ljubičić, A., Lutz, G., Luzón, G., Miller, D. W., Papaevangelou, T., Pivovaroff, M. J., Raffelt, G., Redondo, J., Riege, H., Rodríguez, A., Ruz, J., Savvidis, I., Semertzidis, Y., Stewart, L., Bibber, K. Van, Vieira, J. D., Villar, J. A., Vogel, J. K., Walckiers, L., and Zioutas, K. Thu .
"CAST constraints on the axion-electron coupling". United States. https://doi.org/10.1088/1475-7516/2013/05/010. https://www.osti.gov/servlets/purl/1240066.
@article{osti_1240066,
title = {CAST constraints on the axion-electron coupling},
author = {Barth, K. and Belov, A. and Beltran, B. and Bräuninger, H. and Carmona, J. M. and Collar, J. I. and Dafni, T. and Davenport, M. and Lella, L. Di and Eleftheriadis, C. and Englhauser, J. and Fanourakis, G. and Ferrer-Ribas, E. and Fischer, H. and Franz, J. and Friedrich, P. and Galán, J. and García, J. A. and Geralis, T. and Giomataris, I. and Gninenko, S. and Gómez, H. and Hasinoff, M. D. and Heinsius, F. H. and Hoffmann, D. H.H and Irastorza, I. G. and Jacoby, J. and Jakovčić, K. and Kang, D. and Königsmann, K. and Kotthaus, R. and Kousouris, K. and Krčmar, M. and Kuster, M. and Lakić, B. and Liolios, A. and Ljubičić, A. and Lutz, G. and Luzón, G. and Miller, D. W. and Papaevangelou, T. and Pivovaroff, M. J. and Raffelt, G. and Redondo, J. and Riege, H. and Rodríguez, A. and Ruz, J. and Savvidis, I. and Semertzidis, Y. and Stewart, L. and Bibber, K. Van and Vieira, J. D. and Villar, J. A. and Vogel, J. K. and Walckiers, L. and Zioutas, K.},
abstractNote = {In non-hadronic axion models, which have a tree-level axion-electron interaction, the Sun produces a strong axion flux by bremsstrahlung, Compton scattering, and axio- recombination, the “BCA processes.” Based on a new calculation of this flux, including for the first time axio-recombination, we derive limits on the axion-electron Yukawa coupling gae and axion-photon interaction strength gaγ using the CAST phase-I data (vacuum phase). For ma ≲ 10 meV/c2 we find gaγ gae < 8.1 × 10–23 GeV–1 at 95% CL. We stress that a next-generation axion helioscope such as the proposed IAXO could push this sensitivity into a range beyond stellar energy-loss limits and test the hypothesis that white-dwarf cooling is dominated by axion emission.},
doi = {10.1088/1475-7516/2013/05/010},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2013,
place = {United States},
year = {Thu May 09 00:00:00 EDT 2013},
month = {Thu May 09 00:00:00 EDT 2013}
}
Web of Science
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