New CAST limit on the axion–photon interaction

Anastassopoulos, V.; Zioutas, K.; Gardikiotis, A.; Maroudas, Marios; Papaevangelou, T.; Giomataris, I.; Ferrer-Ribas, E.; Aune, S.; Barth, K.; Vafeiadis, T.; Davenport, M.; Kostoglou, S.; Ortega, I.; Stewart, L.; Zioutas, K.; Laurent, J. M.; Dermenev, A.; Белов, А. С.; Gninenko, S.; Bräuninger, H.; Karuza, M.; Cantatore, G.; Garza, J.G.; Irastorza, I. G.; Castel, J. F.; Carmona, J. M.; Ortega, I.; Ruiz-Chóliz, Elisa; Luzón, G.; Dafní, T.; Iguaz, F.J.; García, J. A.; Yildiz, S. C.; Cetin, S. A.; Christensen, Finn E.; Jakobsen, Anders C.; Collar, J. I.; Pivovaroff, M. J.; Vogel, J. K.; Ruz, J.; Decker, T. A.; Krieger, Ch.; Kamiński, J.; Desch, K.; Schmidt, Sebastian; Liolios, A.; Savvidis, I.; Paraschou, K.; Eleftheriadis, C.; Fanourakis, G.; Geralis, T.; Fischer, H.; Gazis, E. N.; Hailey, C. J.; Hasinoff, M. D.; Hoffmann, D. H. H.; Neff, S.; Rosu, M.; Jacoby, J.; Ljubičić, A.; Lakić, B.; Jakovčić, K.; Krčmar, M.; Kralj, Nenad; Karuza, M.; Miceli, L.; Semertzidis, Y. K.; Raffelt, Georg G.; Solanki, S. K.

doi:10.1038/nphys4109

articleNature PhysicsMay 1, 2017HYBRID OA

New CAST limit on the axion–photon interaction

VAV. Anastassopoulos KZK. Zioutas AGA. Gardikiotis MMMarios Maroudas TPT. Papaevangelou

University of Patras · Commissariat à l'Énergie Atomique et aux Énergies Alternatives · +27 more institutions

Indexed inarxivcrossref

Abstract

Hypothetical low-mass particles, such as axions, provide a compelling explanation for the dark matter in the universe. Such particles are expected to emerge abundantly from the hot interior of stars. To test this prediction, the CERN Axion Solar Telescope (CAST) uses a 9 T refurbished Large Hadron Collider test magnet directed towards the Sun. In the strong magnetic field, solar axions can be converted to X-ray photons which can be recorded by X-ray detectors. In the 2013–2015 run, thanks to low-background detectors and a new X-ray telescope, the signal-to-noise ratio was increased by about a factor of three. Here, we report the best limit on the axion–photon coupling strength (0.66 × 10−10 GeV−1 at 95%…

Citation impact

976

total citations

FWCI: 118.95
Percentile: 100%
References: 50

Citations per year

Authors

69

Topics & keywords

Topics

Keywords

Physics
Axion
Limit (mathematics)
Photon
Quantum electrodynamics
Theoretical physics
Particle physics
Quantum mechanics

No related works found for this paper.