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C. Eleftheriadis,
Samuel A Andriamonje,
E Arik,
D. Autiero,
F T Avignone,
K. Barth,
E Bingol,
H. Bräuninger,
R. L. Brodzinski,
J. M. Carmona, [......],
I. Savvidis,
R Schopper,
Y K Semertzidis,
V C Spanos,
V Vasilelou,
José Angel Villar,
B. Vullierme,
L Walckiers,
K Zachariadou,
Konstantin Zioutas
[show abstract]
[hide abstract]
ABSTRACT: The CERN Axion Solar Telescope (CAST) searches for axions coming from photon to axion conversion in the sun's core, as stated by the Primakoff effect. Axions arise in particle physics as a consequence of the breaking of Peccei-Quinn symmetry which has been introduced as a solution to the strong CP problem. As cosmological axions they are candidates for at least some part of cold Dark Matter.They are also expected to be produced copiously in stellar interiors with energies as high as the thermal photons undergoing photon to axion conversion. In our sun the axion energy spectrum peaks at about 4.4 keV, extending up to 10 keV. CAST collected preliminary data in 2002 and data taking with its full capability will start in the beginning of 2003.
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S. Andriamonje,
V. Arsov,
S. Aune,
T. Aune,
F. T. Avignone III,
K. Barth,
A. Belov,
B. Beltran,
H. Bräuninger,
J. Carmona, [......],
J. Ruz, M. Sarsa,
C Schill,
W. Serber,
Y. Semertzidis,
J. Vieira,
J. Villar,
B. Vullierme,
L Walckiers,
K. Zioutas
Nuclear Physics B - Proceedings Supplements, v.138, 41-44 (2005).
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T. Dafni,
S. Andriamonje,
V. Arsov,
S. Aune,
D. Autiero,
K. Barth,
A. Belov,
B. Beltrán,
H. Bräuninger,
J. Carmona, [......], M. Sarsa,
I. Savvidis,
Y. Semertzidis,
W. Serber,
P. Serpico,
L. Stewart,
J. Vieira,
J. Villar,
L Walckiers,
K. Zioutas
Journal of Physics: Conference Series, v.39, 117-119 (2006).
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J. I. Collar,
C. E. Aalseth,
E Arik,
D. Autiero,
F T Avignone,
K. Barth,
S.M. Bowyer,
H. Brauninger,
R. L. Brodzinski,
J. M. Carmona, [......],
M. Stipcevic,
C. W. Thomas,
R. C. Thompson,
P. Valko,
J. A. Villar,
B. Villierme,
L Walckiers,
W. Wilcox,
K Zachariadou,
K. Zioutas
[show abstract]
[hide abstract]
ABSTRACT: The new axion helioscope at CERN started acquiring data during September of 2002: CAST (Cern Axion Solar Telescope) employs a decommissioned LHC dipole magnet to convert putative solar axions or axion-like particles into detectable photons. The unprecedented dipole magnet intensity and length (9.5 T, 10 m) results in a projected sensitivity that surpasses astrophysical constraints on these particles for the first time, increasing the chance of discovery. The use of X-ray focusing optics and state-of-the-art detector technology has led to an extremely low background for an experiment above ground. A brief status report is given, with emphasis on the tracking and control system and possible future extensions.
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I. G. Irastorza,
S. Andriamonje,
E Arik,
D. Autiero,
F. Avignone,
K. Barth,
H. Brauninger,
R. Brodzinski,
J. Carmona,
S. Cebrian, [......],
G. Raffelt,
H Riege, M. Sarsa,
I. Savvidis,
C. Spano,
J. Villar,
B. Vullierme,
L Walckiers,
K Zachariadou,
K. Zioutas
[show abstract]
[hide abstract]
ABSTRACT: The CAST experiment is being mounted at CERN. It will make use of a decommissioned LHC test magnet to look for solar axions through its conversion into photons inside the magnetic field. The magnet has a field of 9 Tesla and length of 10 m and is installed in a platform which allows to move it ~8 degrees vertically and ~40 degrees horizontally. According to these numbers we expect a sensitivity in axion-photon coupling ~5 x 10^-11 GeV^-1 for axion masses m < ~10^-2 eV, and with a gas filled tube 10^-10 GeV^-1 for m < ~2 eV.
Nuclear Physics B - Proceedings Supplements, 114, 75-80 (2003).
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C. E. Aalseth,
E Arik,
D. Autiero,
F T Avignone,
K. Barth,
S.M. Bowyer,
H. Brauninger,
R. L. Brodzinski,
J. M. Carmona,
S. Cebrian, [......],
M. Stipcevic,
C. W. Thomas,
R. C. Thompson,
P. Valko,
J. A. Villar,
B. Villierme,
L Walckiers,
W. Wilcox,
K Zachariadou,
K. Zioutas
[show abstract]
[hide abstract]
ABSTRACT: A decommissioned LHC test magnet is being prepared as the CERN Axion Solar Telescope (CAST) experiment. The magnet has a field of 9.6 Tesla and length of 10 meters. It is being mounted on a platform to track the sun over $\pm 8^\circ$ vertically and $\pm 45^\circ$, horizontally. A sensitivity in axion-photon coupling $g_{\alpha\gamma\gamma} < 5 \times 10^{-11}$ GeV$^{-1}$ can be reached for $m_\alpha \le 10^{-2}$ eV, and with a gas filled tube-can reach $g_{\alpha\gamma\gamma} \le 10^{-10}$ GeV$^{-1}$ for axion masses $m_\alpha < 2$ eV.
Nuclear Physics B - Proceedings Supplements, 110, 85-87 (2002).
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C.E. Aalseth,
E. Arik,
D. Autiero,
F.T. Avignone,
K. Barth,
S.M. Bowyer,
H. Brauninger,
R.L. Brodzinski,
J.M. Carmona,
S. Cebrian, [......],
M. Stipčević,
C.W. Thomas,
R.C. Thompson,
P. Valco,
J.A. Villar,
B. Villierme,
L. Walckiers,
W. Wilcox,
K. Zachariadou,
K. Zioutas
[show abstract]
[hide abstract]
ABSTRACT: A decommissioned LHC test magnet is being prepared as the CERN Axion Solar Telescope (CAST) experiment. The magnet has a field of 9.6 Tesla and length of 10 meters. It is being mounted on a platform to track the sun over ±8° vertically and ±45°, horizontally. A sensitivity in axion-photon coupling gαγγ < 5 × 10−11GeV−1 can be reached for mα ≤ 10−2eV, and with a gas filled tube-can reach gαγγ ≤ 10−10GeV−1 for axion masses mα < 2eV.
Nuclear Physics B - Proceedings Supplements.
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C.E Aalseth,
E Arik,
D. Autiero,
F.T Avignone,
K. Barth,
S.M Bowyer,
H. Bräuninger,
R.L Brodzinski,
J.M Carmona,
S. Cebrian, [......],
M. Stipcevic,
C.W Thomas,
R.C Thompson,
P. Valco,
J.A Villar,
B. Villierme,
L Walckiers,
W. Wilcox,
K Zachariadou,
K. Zioutas
[show abstract]
[hide abstract]
ABSTRACT: A decommissioned LHC test magnets is being prepared as the CERN Axion Solar Telescope (CAST) experiment. The magnet has a field of 9.6 Tesla and length of 10 meters. It is being mounted on a platform to track the sun over +/-8(0) vertically and +/-45(0), horizontally. A sensitivity in axion-photon coupling g(agammagamma) < 5 x 10(-11)GeV(-1) can be reached for m(a) less than or equal to 10(-2) eV, and with a gas filled tube-can reach g(agammagamma) less than or equal to 10(-10)GeV(-1) for axion masses m(a) < 2eV.
Nuclear Physics B (Proceedings Supplement), v.110, 85-87 (2002).
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I. G. Irastorza,
S. Andriamonje,
E Arik,
D. Autiero,
F. Avignone,
K. Barth,
H. Bräuninger,
R. Brodzinski,
J. Carmona,
S. Cebrian, [......],
G. Raffelt,
H Riege, M. Sarsa,
I. Savvidis,
C. Spano,
J. Villar,
B. Vullierme,
L Walckiers,
K Zachariadou,
K. Zioutas
Nuclear Physics B (Proc. Suppl.), 1, 75-80 (2003).
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I.G. Irastorza,
S. Andriamonje,
E. Arik,
D. Autiero,
F. Avignone,
K. Barth,
H. Brauninger,
R. Brodzinski,
J. Carmona,
S. Cebrian, [......],
G. Raffelt,
H. Riege, M. Sarsa,
I. Savvidis,
C. Spano,
J. Villar,
B. Vullierme,
L. Walckiers,
K. Zachariadou,
K. Zioutas
[show abstract]
[hide abstract]
ABSTRACT: The CAST experiment is being mounted at CERN. It will make use of a decommissioned LHC test magnet to look for solar axions through its conversion into photons inside the magnetic field. The magnet has a field of 9.6 Tesla and length of 10 m and is installed in a platform which allows to move it ±8° vertically and ±40° horizontally. According to these numbers we expect a sensitivity in axion-photon coupling gαγγ ⪅ 5 × 10−11 GeV−1 for ma ⪅ 0.02 eV, and with a gas filled tube gaγγ ⪅ 10−10
Nuclear Physics B - Proceedings Supplements.
