Improved Search for Solar Chameleons with a GridPix Detector at CAST

Anastassopoulos, V.; Aune, S.; Barth, K.; Belov, A.; Bräuninger, H.; Cantatore, G.; Carmona, J.M.; Castel, J.F.; Cetin, S.A.; Christensen, F.; Dafni, T.; Davenport, M.; Dermenev, A.; Desch, K.; Döbrich, B.; Eleftheriadis, C.; Fanourakis, G.; Ferrer-Ribas, E.; Fischer, H.; Funk, W.; García, J.A.; Gardikiotis, A.; Garza, J.G.; Gazis, E.N.; Geralis, T.; Giomataris, I.; Gninenko, S.; Hailey, C.J.; Hasinoff, M.D.; Hoffmann, D.H.H.; Iguaz, F.J.; Irastorza, I.G.; Jakobsen, A.; Jacoby, J.; Jakovčić, K.; Kaminski, J.; Karuza, M.; Kostoglou, S.; Kralj, N.; Krčmar, M.; Krieger, C.; Lakić, B.; Laurent, J.M.; Liolios, A.; Ljubičić, A.; Luzón, G.; Maroudas, M.; Miceli, L.; Neff, S.; Ortega, I.; Papaevangelou, T.; Paraschou, K.; Pivovaroff, M.J.; Raffelt, G.; Rosu, M.; Ruz, J.; Ruiz Chóliz, E.; Savvidis, I.; Schmidt, S.; Semertzidis, Y.K.; Solanki, S.K.; Stewart, L.; Vafeiadis, T.; Vogel, J.K.; Vretenar, M.; Yildiz, S.C.; Zioutas, K.; Brax, P.

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Improved Search for Solar Chameleons with a GridPix Detector at CAST

MPG-Autoren

Anastassopoulos, V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Aune, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Barth, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Belov, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bräuninger, H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cantatore, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Carmona, J.M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Castel, J.F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cetin, S.A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Christensen, F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dafni, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Davenport, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dermenev, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Desch, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Döbrich, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Eleftheriadis, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fanourakis, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ferrer-Ribas, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fischer, H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Funk, W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

García, J.A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gardikiotis, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Garza, J.G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gazis, E.N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Geralis, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Giomataris, I.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gninenko, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hailey, C.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hasinoff, M.D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hoffmann, D.H.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Iguaz, F.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Irastorza, I.G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jakobsen, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jacoby, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jakovčić, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kaminski, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Karuza, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kostoglou, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kralj, N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Krčmar, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Krieger, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lakić, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Laurent, J.M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Liolios, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ljubičić, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Luzón, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Maroudas, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Miceli, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Neff, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ortega, I.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Papaevangelou, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Paraschou, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pivovaroff, M.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Raffelt, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rosu, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ruz, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ruiz Chóliz, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Savvidis, I.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schmidt, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Semertzidis, Y.K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Solanki, S.K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Stewart, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Vafeiadis, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Vogel, J.K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Vretenar, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Yildiz, S.C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zioutas, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Brax, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Zitation

Anastassopoulos, V., Aune, S., Barth, K., Belov, A., Bräuninger, H., Cantatore, G., et al. (2019). Improved Search for Solar Chameleons with a GridPix Detector at CAST. Journal of Cosmology and Astroparticle Physics, 1901, 032. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-243.

Zitierlink: https://hdl.handle.net/21.11116/0000-0005-D73B-7

Zusammenfassung

We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200 eV to 10 keV from converted solar chameleons. No signiffcant excess over the expected background has been observed in the data taken in 2014 and 2015. We set an improved limit on the chameleon photon coupling, $\beta_\gamma < 5.7\times10^{10}$ for $1<\beta_\mathrm{m}<10^6$ at 95% C.L. improving our previous results by a factor two and for the first time reaching sensitivity below the solar luminosity bound for tachocline magnetic fields up to $12.5\,\mathrm{T}$.