Search for solar axions: The cast experiment at CERN

CAST Collaboration

Search for solar axions: The cast experiment at CERN

CAST Collaboration

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Abstract

Hypothetical axion-like particles with a two-photon interaction would be produced in the sun by the Primakoff process. In a laboratory magnetic field they would be transformed into Xrays with energies of a few keV. The CAST experiment at CERN is using a decommissioned LHC magnet as an axion helioscope in order to search for these a. xion-like particles. The analysis of the 2003 data 1 has shown no signal above the background, thus implying an upper limit to the axion-photon coupling of Yao < 1.16 x 10- ¹⁰ Gev- ¹ at 953 CL for ma;S 0.02 eV. The stable operation of the experiment during 2004 data taking allow us to anticipate that this value will be improved. At the end of 2005 we expect to start with the so-called second phase of CAST, when the magnet pipes will be filled with a buffer gas so that the a.xion-photon coherence will be extended. In this way we will be able to search for axions with masses up to 1 eV.

Original language	English (US)
Pages	159-166
Number of pages	8
State	Published - 2005
Event	40th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2005 - La Thuile, Italy Duration: Mar 5 2005 → Mar 12 2005

Conference

Conference	40th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2005
Country/Territory	Italy
City	La Thuile
Period	3/5/05 → 3/12/05

ASJC Scopus subject areas

Astronomy and Astrophysics
Atomic and Molecular Physics, and Optics

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@conference{36a0ce4b64e8426d98aa165dab42dfd6,

title = "Search for solar axions: The cast experiment at CERN",

abstract = "Hypothetical axion-like particles with a two-photon interaction would be produced in the sun by the Primakoff process. In a laboratory magnetic field they would be transformed into Xrays with energies of a few keV. The CAST experiment at CERN is using a decommissioned LHC magnet as an axion helioscope in order to search for these a. xion-like particles. The analysis of the 2003 data 1 has shown no signal above the background, thus implying an upper limit to the axion-photon coupling of Yao < 1.16 x 10- 10 Gev- 1 at 953 CL for ma;S 0.02 eV. The stable operation of the experiment during 2004 data taking allow us to anticipate that this value will be improved. At the end of 2005 we expect to start with the so-called second phase of CAST, when the magnet pipes will be filled with a buffer gas so that the a.xion-photon coherence will be extended. In this way we will be able to search for axions with masses up to 1 eV.",

author = "{CAST Collaboration} and Berta Beltran and S. Andrjamonje and V. Arsov and S. Aune and D. Autiero and F. Avignone and K. Barth and A. Belov and B. Beltran and H. Brauninger and Carmona, {J. M.} and S. Cebrian and E. Chesi and Collar, {J. I.} and R. Creswick and T. Dafni and M. Davenport and Lella, {L. D.I.} and C. Eleftheriadis and J. Englhauser and G. Fanourakis and H. Farach and E. Ferrer and H. Fischer and J. Franz and P. Friedrich and T. Geralis and I. Giomataris and S. Gninenko and N. Goloubev and R. Hartmann and Hasinoff, {M. D.} and Heinsius, {F. H.} and Hoffmann, {D. H.H.} and Irastorza, {I. G.} and J. Jacoby and D. Kang and K. Konigsmann and R. Kotthaus and M. Krcmar and K. Kousouris and M. Kuster and B. Lakic and C. Lasseur and A. Liolios and A. Ljubicic and G. Lutz and G. Luzon and Miller, {D. W.} and Vieira, {J. D.}",

note = "Publisher Copyright: {\textcopyright} Proceedings of the 40th Rencontres de Moriond - 2005 Electroweak Interactions and Unified Theories, EW 2005.; 40th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2005 ; Conference date: 05-03-2005 Through 12-03-2005",

year = "2005",

language = "English (US)",

pages = "159--166",

}

TY - CONF

T1 - Search for solar axions

T2 - 40th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2005

AU - CAST Collaboration

AU - Beltran, Berta

AU - Andrjamonje, S.

AU - Arsov, V.

AU - Aune, S.

AU - Autiero, D.

AU - Avignone, F.

AU - Barth, K.

AU - Belov, A.

AU - Beltran, B.

AU - Brauninger, H.

AU - Carmona, J. M.

AU - Cebrian, S.

AU - Chesi, E.

AU - Collar, J. I.

AU - Creswick, R.

AU - Dafni, T.

AU - Davenport, M.

AU - Lella, L. D.I.

AU - Eleftheriadis, C.

AU - Englhauser, J.

AU - Fanourakis, G.

AU - Farach, H.

AU - Ferrer, E.

AU - Fischer, H.

AU - Franz, J.

AU - Friedrich, P.

AU - Geralis, T.

AU - Giomataris, I.

AU - Gninenko, S.

AU - Goloubev, N.

AU - Hartmann, R.

AU - Hasinoff, M. D.

AU - Heinsius, F. H.

AU - Hoffmann, D. H.H.

AU - Irastorza, I. G.

AU - Jacoby, J.

AU - Kang, D.

AU - Konigsmann, K.

AU - Kotthaus, R.

AU - Krcmar, M.

AU - Kousouris, K.

AU - Kuster, M.

AU - Lakic, B.

AU - Lasseur, C.

AU - Liolios, A.

AU - Ljubicic, A.

AU - Lutz, G.

AU - Luzon, G.

AU - Miller, D. W.

AU - Vieira, J. D.

N1 - Publisher Copyright: © Proceedings of the 40th Rencontres de Moriond - 2005 Electroweak Interactions and Unified Theories, EW 2005.

PY - 2005

Y1 - 2005

N2 - Hypothetical axion-like particles with a two-photon interaction would be produced in the sun by the Primakoff process. In a laboratory magnetic field they would be transformed into Xrays with energies of a few keV. The CAST experiment at CERN is using a decommissioned LHC magnet as an axion helioscope in order to search for these a. xion-like particles. The analysis of the 2003 data 1 has shown no signal above the background, thus implying an upper limit to the axion-photon coupling of Yao < 1.16 x 10- 10 Gev- 1 at 953 CL for ma;S 0.02 eV. The stable operation of the experiment during 2004 data taking allow us to anticipate that this value will be improved. At the end of 2005 we expect to start with the so-called second phase of CAST, when the magnet pipes will be filled with a buffer gas so that the a.xion-photon coherence will be extended. In this way we will be able to search for axions with masses up to 1 eV.

AB - Hypothetical axion-like particles with a two-photon interaction would be produced in the sun by the Primakoff process. In a laboratory magnetic field they would be transformed into Xrays with energies of a few keV. The CAST experiment at CERN is using a decommissioned LHC magnet as an axion helioscope in order to search for these a. xion-like particles. The analysis of the 2003 data 1 has shown no signal above the background, thus implying an upper limit to the axion-photon coupling of Yao < 1.16 x 10- 10 Gev- 1 at 953 CL for ma;S 0.02 eV. The stable operation of the experiment during 2004 data taking allow us to anticipate that this value will be improved. At the end of 2005 we expect to start with the so-called second phase of CAST, when the magnet pipes will be filled with a buffer gas so that the a.xion-photon coherence will be extended. In this way we will be able to search for axions with masses up to 1 eV.

UR - http://www.scopus.com/inward/record.url?scp=85088916658&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85088916658&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85088916658

SP - 159

EP - 166

Y2 - 5 March 2005 through 12 March 2005

ER -

Search for solar axions: The cast experiment at CERN

Abstract

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