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Search for chameleons with CAST
/ CAST Collaboration
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 ($\beta_{\rm m}$) and to photons ($\beta_{\gamma}$) via the Primakoff effect. [...]
arXiv:1503.04561.-
2015-07-24 - 9 p.
- Published in : Phys. Lett. B 749 (2015) 172-180
Article from SCOAP3: PDF; Fulltext: PDF; External link: Preprint
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Conceptual Design of the International Axion Observatory (IAXO)
/ Armengaud, E. (IRFU, Saclay) ; Avignone, F.T. (South Carolina U.) ; Betz, M. (CERN) ; Brax, P. (IRFU, Saclay) ; Brun, P. (IRFU, Saclay) ; Cantatore, G. (INFN, Trieste ; Trieste U.) ; Carmona, J.M. (Zaragoza U.) ; Carosi, G.P. (LLNL, Livermore) ; Caspers, F. (CERN) ; Caspi, S. (LBL, Berkeley) et al.
The International Axion Observatory (IAXO) will be a forth generation axion helioscope. As its primary physics goal, IAXO will look for axions or axion-like particles (ALPs) originating in the Sun via the Primakoff conversion of the solar plasma photons. [...]
arXiv:1401.3233; FERMILAB-PUB-14-476-A; BNL-106253-2014-JA.-
2014-05-12 - 47 p.
- Published in : JINST 9 (2014) T05002
Fulltext: PDF; IOP Open Access article: PDF; External links: Fermilab Library Server (fulltext available); Fulltext
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The Micromegas detector of the CAST experiment
/ Abbon, P. (IRFU, Saclay) ; Andriamonje, S. (IRFU, Saclay) ; Aune, S. (IRFU, Saclay) ; Dafni, T. (IRFU, Saclay ; Darmstadt, Tech. Hochsch. ; Darmstadt, GSI) ; Davenport, M. (CERN) ; Delagnes, E. (IRFU, Saclay) ; Oliveira, R. de (CERN) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Ribas, E.Ferrer (IRFU, Saclay) ; Franz, J. (Freiburg U.) et al.
A low background Micromegas detector has been operating in the CAST experiment at CERN for the search of solar axions during the first phase of the experiment (2002-2004). The detector, made out of low radioactivity materials, operated efficiently and achieved a very low level of background rejection (5 x 10^-5 counts/keV/cm^2/s) without shielding..
physics/0702190.-
Geneva : CERN, 2007 - 13 p.
- Published in : New J. Phys. 9 (2007) 170
Access to fulltext document: PDF; Fulltext: PDF; External link: physics/0702190 PDF
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The CAST Time Projection Chamber
/ Autiero, D. (CERN ; Lyon, IPN) ; Beltrán, B. (Queen's U., Kingston) ; Carmona, J.M. (Zaragoza U.) ; Cebrián, S. (Zaragoza U.) ; Chesi, E. (CERN) ; Davenport, M. (CERN) ; Delattre, M. (CERN) ; Lella, L.Di (CERN ; Pisa, Scuola Normale Superiore) ; Formenti, F. (CERN) ; Irastorza, I.G. (CERN ; DAPNIA, Saclay) et al.
One of the three X-ray detectors of the CAST experiment searching for solar axions is a Time Projection Chamber (TPC) with a multi-wire proportional counter (MWPC) as a readout structure. Its design has been optimized to provide high sensitivity to the detection of the low intensity X-ray signal expected in the CAST experiment. [...]
physics/0702189.-
Geneva : CERN, 2007 - 19 p.
- Published in : New J. Phys. 9 (2007) 171
Access to fulltext document: PDF; Fulltext: njp7_6_171 - PDF; arXiv:physics_0702189 - PDF; External link: physics/0702189 PDF
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The X-ray Telescope of CAST
/ Kuster, M. (Darmstadt, Tech. Hochsch. ; Garching, Max Planck Inst., MPE) ; Bräuninger, H. (Garching, Max Planck Inst., MPE) ; Cebrián, S. (Zaragoza U.) ; Davenport, M. (CERN) ; Eleftheriadis, C. (Aristotle U., Thessaloniki) ; Englhauser, J. (Garching, Max Planck Inst., MPE) ; Fischer, H. (Freiburg U.) ; Franz, J. (Freiburg U.) ; Friedrich, P. (Garching, Max Planck Inst., MPE) ; Hartmann, R. (PNSensor GmbH ; Munich, Max Planck Inst. HLL) et al.
The Cern Axion Solar Telescope (CAST) is in operation and taking data since 2003. The main objective of the CAST experiment is to search for a hypothetical pseudoscalar boson, the axion, which might be produced in the core of the sun. [...]
physics/0702188.-
Geneva : CERN, 2007 - 19 p.
- Published in : New J. Phys. 9 (2007) 169
Access to fulltext document: PDF; Fulltext: arXiv:physics_0702188 - PDF; njp7_6_169 - PDF; External link: physics/0702188 PDF
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New solar axion search in CAST with $^4$He filling
/ CAST Collaboration
The CERN Axion Solar Telescope (CAST) searches for $a\to\gamma$ conversion in the 9 T magnetic field of a refurbished LHC test magnet that can be directed toward the Sun. Two parallel magnet bores can be filled with helium of adjustable pressure to match the X-ray refractive mass $m_\gamma$ to the axion search mass $m_a$. [...]
arXiv:1503.00610.-
2015-07-28 - 6 p.
- Published in : Phys. Rev. D 92 (2015) 021101(R)
APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
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The IAXO Helioscope
/ Ferrer Ribas, E. (IRFU, Saclay) ; Armengaud, E. (IRFU, Saclay) ; Avignone, F.T. (South Carolina U.) ; Betz, M. (CERN) ; Brax, P. (IPhT, Saclay) ; Brun, P. (IRFU, Saclay) ; Cantatore, G. (INFN, Trieste ; Trieste U.) ; Carmona, J.M. (Zaragoza U.) ; Carosi, G.P. (LLNL, Livermore) ; Caspers, F. (CERN) et al.
The IAXO (International Axion Experiment) is a fourth generation helioscope with a sensitivity, in terms of detectable signal counts, at least 10(4) better than CAST phase-I, resulting in sensitivity on g(a)(γ) one order of magnitude better. To achieve this performance IAXO will count on a 8-coil toroidal magnet with 60 cm diameter bores and equipped with X-ray focusing optics into 0.20 cm(2) spots coupled to ultra-low background Micromegas X-ray detectors. [...]
2015 - 8 p.
- Published in : J. Phys.: Conf. Ser. 650 (2015) 012009
IOP Open Access article: PDF;
In : 7th Symposium on large TPCs for low-energy rare event detection, Paris, France, 15 - 17 Dec 2014, pp.012009
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