Probing the eV-Mass range for solar axions with CAST

Aune, S; Barth, K; Belov, A; Borghi, S; Brauninger, H; Cantatore, G; Carmona, JM; Cetin, SA; Collar, JI; Dafni, T; Davenport, M; Eleftheriadis, C; Elias, N; Ezer, C; Fanourakis, G; Ferrer-Ribas, E; Fischer, H; Franz, J; Friedrich, P; Galan, J; Gardikiotis, A; Gazis, EN; Geralis, T; Giomataris, I; Gninenko, S; Gomez, H; Gruber, E; Guthorl, T; Hartmann, R; Haug, F; Hasinoff, MD; Hoffmann, DHH; Iguaz, FJ; Irastorza, IG; Jacoby, J; Jakovcic, K; Kang, D; Karageorgopoulou, T; Karuza, M; Konigsmann, K; Kotthaus, R; Krcmar, M; Kousouris, K; Kuster, M; Lakic, B; Lang, P; Lasseur, C; Laurent, JM; Liolios, A; Ljubicic, A; Lozza, V; Lutz, G; Luzon, G; Miller, DW; Mirizzi, A; Morales, J; Niinikoski, T; Nordt, A; Papaevangelou, T; Pivovaroff, MJ; Raiteri, G; Raffelt, G; Rashba, T; Riege, H; Rodriguez, A; Rosu, M; Ruz, J; Savvidis, I; Semertzidis, Y; Serpico, P; Silva, PS; Solanki, SK; Soufli, R; Stewart, L; Tomas, A; Tsagri, M; Van Bibber, K; Vafeiadis, T; Villar, J; Vogel, JK; Walckiers, L; Wong, YYY; Yildiz, SC; Zioutas, K

dc.contributor.author	Aune, S	en
dc.contributor.author	Barth, K	en
dc.contributor.author	Belov, A	en
dc.contributor.author	Borghi, S	en
dc.contributor.author	Brauninger, H	en
dc.contributor.author	Cantatore, G	en
dc.contributor.author	Carmona, JM	en
dc.contributor.author	Cetin, SA	en
dc.contributor.author	Collar, JI	en
dc.contributor.author	Dafni, T	en
dc.contributor.author	Davenport, M	en
dc.contributor.author	Eleftheriadis, C	en
dc.contributor.author	Elias, N	en
dc.contributor.author	Ezer, C	en
dc.contributor.author	Fanourakis, G	en
dc.contributor.author	Ferrer-Ribas, E	en
dc.contributor.author	Fischer, H	en
dc.contributor.author	Franz, J	en
dc.contributor.author	Friedrich, P	en
dc.contributor.author	Galan, J	en
dc.contributor.author	Gardikiotis, A	en
dc.contributor.author	Gazis, EN	en
dc.contributor.author	Geralis, T	en
dc.contributor.author	Giomataris, I	en
dc.contributor.author	Gninenko, S	en
dc.contributor.author	Gomez, H	en
dc.contributor.author	Gruber, E	en
dc.contributor.author	Guthorl, T	en
dc.contributor.author	Hartmann, R	en
dc.contributor.author	Haug, F	en
dc.contributor.author	Hasinoff, MD	en
dc.contributor.author	Hoffmann, DHH	en
dc.contributor.author	Iguaz, FJ	en
dc.contributor.author	Irastorza, IG	en
dc.contributor.author	Jacoby, J	en
dc.contributor.author	Jakovcic, K	en
dc.contributor.author	Kang, D	en
dc.contributor.author	Karageorgopoulou, T	en
dc.contributor.author	Karuza, M	en
dc.contributor.author	Konigsmann, K	en
dc.contributor.author	Kotthaus, R	en
dc.contributor.author	Krcmar, M	en
dc.contributor.author	Kousouris, K	en
dc.contributor.author	Kuster, M	en
dc.contributor.author	Lakic, B	en
dc.contributor.author	Lang, P	en
dc.contributor.author	Lasseur, C	en
dc.contributor.author	Laurent, JM	en
dc.contributor.author	Liolios, A	en
dc.contributor.author	Ljubicic, A	en
dc.contributor.author	Lozza, V	en
dc.contributor.author	Lutz, G	en
dc.contributor.author	Luzon, G	en
dc.contributor.author	Miller, DW	en
dc.contributor.author	Mirizzi, A	en
dc.contributor.author	Morales, J	en
dc.contributor.author	Niinikoski, T	en
dc.contributor.author	Nordt, A	en
dc.contributor.author	Papaevangelou, T	en
dc.contributor.author	Pivovaroff, MJ	en
dc.contributor.author	Raiteri, G	en
dc.contributor.author	Raffelt, G	en
dc.contributor.author	Rashba, T	en
dc.contributor.author	Riege, H	en
dc.contributor.author	Rodriguez, A	en
dc.contributor.author	Rosu, M	en
dc.contributor.author	Ruz, J	en
dc.contributor.author	Savvidis, I	en
dc.contributor.author	Semertzidis, Y	en
dc.contributor.author	Serpico, P	en
dc.contributor.author	Silva, PS	en
dc.contributor.author	Solanki, SK	en
dc.contributor.author	Soufli, R	en
dc.contributor.author	Stewart, L	en
dc.contributor.author	Tomas, A	en
dc.contributor.author	Tsagri, M	en
dc.contributor.author	Van Bibber, K	en
dc.contributor.author	Vafeiadis, T	en
dc.contributor.author	Villar, J	en
dc.contributor.author	Vogel, JK	en
dc.contributor.author	Walckiers, L	en
dc.contributor.author	Wong, YYY	en
dc.contributor.author	Yildiz, SC	en
dc.contributor.author	Zioutas, K	en
dc.date.accessioned	2014-03-01T02:52:44Z
dc.date.available	2014-03-01T02:52:44Z
dc.date.issued	2010	en
dc.identifier.issn	10957863	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36031
dc.subject.other	CERN axion solar telescopes	en
dc.subject.other	Coupling constants	en
dc.subject.other	Current status	en
dc.subject.other	Dark matter	en
dc.subject.other	Gas density distribution	en
dc.subject.other	Helium gas	en
dc.subject.other	High pressure	en
dc.subject.other	Mass regions	en
dc.subject.other	Phase spaces	en
dc.subject.other	Second phase	en
dc.subject.other	Solar axions	en
dc.subject.other	Strong CP problem	en
dc.subject.other	Upper limits	en
dc.subject.other	X ray photons	en
dc.subject.other	X-ray detector	en
dc.subject.other	Experiments	en
dc.subject.other	Gamma rays	en
dc.subject.other	Helium	en
dc.subject.other	Magnetic fields	en
dc.subject.other	Magnets	en
dc.subject.other	Medical imaging	en
dc.subject.other	Nuclear physics	en
dc.subject.other	Phase space methods	en
dc.subject.other	Photons	en
dc.subject.other	Telescopes	en
dc.subject.other	X rays	en
dc.subject.other	Bosons	en
dc.title	Probing the eV-Mass range for solar axions with CAST	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/NSSMIC.2010.5873777	en
heal.identifier.secondary	http://dx.doi.org/10.1109/NSSMIC.2010.5873777	en
heal.identifier.secondary	5873777	en
heal.publicationDate	2010	en
heal.abstract	The CERN Axion Solar Telescope (CAST) is searching for solar axions which could be produced in the core of the Sun via the so-called Primakoff effect. Not only would these hypothetical particles solve the strong CP problem, but they are also one of the favored candidates for dark matter. In order to look for axions originating from the Sun, CAST uses a decommissioned LHC prototype magnet. In its 10 m long magnetic field region of 9 Tesla, axions could be reconverted into X-ray photons. Different X-ray detectors are installed on both ends of the magnet, which is mounted on a structure built to follow the Sun during sunrise and sunset for a total of about 3 hours per day. The analysis of the data acquired during the first phase of the experiment with vacuum in the magnetic field region yielded the most restrictive experimental upper limit on the axion-to-photon coupling constant for axion masses up to about 0.02 eV. In order to extend the sensitivity of the experiment to a wider mass range, the CAST experiment continues its search for axions with helium in the magnet bores. In this way it is possible to restore coherence of conversion for larger masses. Changing the pressure of the helium gas enables the experiment to scan different axion masses in the range of up to about 1.2 eV. Especially at high pressures, a precise knowledge of the gas density distribution is crucial to obtain accurate results. In the first part of this second phase of CAST,4He was used and the axion mass region was extended up to 0.39 eV, a part of phase space favored by axion models. In CAST's ongoing3He phase the studied mass range is now being extended further. In this contribution the final results of CAST's4He phase will be presented and the current status of the3He run will be given. This includes latest results as well as prospects of future axion experiments. © 2010 IEEE.	en
heal.journalName	IEEE Nuclear Science Symposium Conference Record	en
dc.identifier.doi	10.1109/NSSMIC.2010.5873777	en
dc.identifier.spage	342	en
dc.identifier.epage	346	en