32786 20250722154010.0 doi 10.1016/j.physletb.2015.07.049 sideral 91105 ART-2015-91105 eng Anastassopoulos, V. Search for chameleons with CAST 2015 Access copy available to the general public Unrestricted In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (ßm) and to photons (ß¿) via the Primakoff effect. By reducing the X-ray detection energy threshold used for axions from 1keV to 400eV CAST became sensitive to the converted solar chameleon spectrum which peaks around 600eV. Even though we have not observed any excess above background, we can provide a 95% C.L. limit for the coupling strength of chameleons to photons of ß¿¿1011 for 1<ßm<106. info:eu-repo/grantAgreement/EUR/EIC-CERN-2011-0006 info:eu-repo/grantAgreement/EC/FP7/240054/EU/Novel Developments in Time Projection Chambers (TPCs) for Rare Event Searches in Underground Astroparticle EXperiments/TREX info:eu-repo/grantAgreement/EC/FP7/289442/EU/INVISIBLES/INVISIBLES info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2008-03456 info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2011-24058 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.787 2015 ASTRONOMY & ASTROPHYSICS 14 / 62 = 0.226 2015 Q1 T1 PHYSICS, NUCLEAR 4 / 21 = 0.19 2015 Q1 T1 PHYSICS, PARTICLES & FIELDS 7 / 28 = 0.25 2015 Q1 T1 3.32 2015 Nuclear and High Energy Physics 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Arik, M. Aune, S. Barth, K. Belov, A. Bräuninger, H. Cantatore, G. Carmona, J.M. Universidad de Zaragoza (orcid)0000-0003-2264-2306 Cetin, S.A. Christensen, F. Collar, J.I. Dafni, T. Universidad de Zaragoza (orcid)0000-0002-8921-910X Davenport, M. Desch, K. Dermenev, A. Eleftheriadis, C. Fanourakis, G. Ferrer-Ribas, E. Friedrich, P. Galán, J. García, J.A. Universidad de Zaragoza (orcid)0000-0002-7399-7353 Gardikiotis, A. Garza, J.G. Universidad de Zaragoza (orcid)0000-0003-0800-1588 Gazis, E.N. Geralis, T. Giomataris, I. Hailey, C. Haug, F. Hasinoff, M.D. Hoffmann, D.H.H. Iguaz, F.J. Universidad de Zaragoza (orcid)0000-0001-6327-9369 Irastorza, I.G. Universidad de Zaragoza (orcid)0000-0003-1163-1687 Jacoby, J. Jakobsen, A. Jakovcic, K. Kaminski, J. Karuza, M. Kavuk, M. Krcmar, M. Krieger, C. Krüger, A. Lakic, B. Laurent, J.M. Liolios, A. Ljubicic, A. Luzón, G. Universidad de Zaragoza (orcid)0000-0002-5352-1884 Neff, S. Ortega, I. Papaevangelou, T. Pivovaroff, M.J. Raffelt, G. Riege, H. Rosu, M. Ruz, J. (orcid)0000-0002-3253-7027 Savvidis, I. Solanki, S.K. Vafeiadis, T. Villar, J.A. Universidad de Zaragoza (orcid)0000-0003-0228-7589 Vogel, J.K. Yildiz, S.C. Zioutas, K. Brax, P. Lavrentyev, I. Upadhye, A. 2004 390 Universidad de Zaragoza Dpto. Física Teórica Área Física Atóm.Molec.y Nucl. 749 (2015), 172-180 Phys. lett., Sect. B Physics Letters B 0370-2693 701449 http://zaguan.unizar.es/record/32786/files/texto_completo.pdf Versión publicada 77474 http://zaguan.unizar.es/record/32786/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:32786 articulos driver 2025-07-22-15:35:39 ARTICLE