Improved search for solar chameleons with a GridPix detector at CAST (CROSBI ID 261545)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
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. ; Garc𝚤a, 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, Krešimir ; Kaminski, J. ; Karuza, Marin ; Kostoglou, S. ; Kralj, Nenad ; Krčmar, Milica ; Krieger, C. ; Lakić, Biljana ; Laurent, J. M. ; Liolios, A. ; Ljubičić, Ante ; Luzón, G. ; Maroudas, M. ; Miceli, L. ; Neff, S. ; Ortega, I. ; Papaevangelou, T. ; Paraschou, K. ; Pivovaroff, M.J. ; Raffelt, G. ; Rosu, M. ; Ruz, J. ; Chóliz, E. Ruiz ; Savvidis, I. ; Schmidt, S. ; Semertzidis, Y.K. ; Solanki, S.K. ; Stewart, L. ; Vafeiadis, T. ; Vogel, J.K. ; Vretenar, Mario ; Wuensch, W. ; Yildiz, S.C. ; Zioutas, K. ; Brax, P.
CAST Collaboration
engleski
Improved search for solar chameleons with a GridPix detector at CAST
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 significant 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 x 10^(10) for 1 < beta_{; ; ; ; 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 T.
dark energy experiments ; modified gravity ; particle physics - cosmology connection ; solar physics
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Podaci o izdanju
2019 (01)
2019.
032
19
objavljeno
1475-7516
10.1088/1475-7516/2019/01/032
