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Search for solar axion emission from 7Li and D(p,gamma)3He nuclear decays with the CAST gamma-ray calorimeter

Authors :
CAST Collaboration
Andriamonje, S.
Aune, S.
Autiero, D.
Barth, K.
Belov, A.
Beltran, B.
Brauninger, H.
Carmona, J. M.
Cebrian, S.
Collar, J. I.
Dafni, T.
Davenport, M.
Lella, L. Di.
Eleftheriadis, C.
Englhauser, J.
Fanourakis, G.
Ribas, E. Ferrer.
Fischer, H.
Franz, J.
Friedrich, P.
Geralis, T.
Giomataris, I.
Gninenko, S.
Gomez, H.
Hasinoff, M.
Heinsius, F. H.
Hoffmann, D. H. H.
Irastorza, I. G.
Jacoby, J.
Jakovcic, K.
Kang, D.
Konigsmann, K.
Kotthaus, R.
Krcmar, M.
Kousouris, K.
Kuster, M.
Lakic, B.
Lasseur, C.
Liolios, A.
Ljubicic, A.
Lutz, G.
Luzon, G.
Miller, D. W.
Morales, J.
Ortiz, A.
Papaevangelou, T.
Placci, A.
Raffelt, G.
Riege, H.
Rodriguez, A.
Ruz, J.
Savvidis, I.
Semertzidis, Y.
Serpico, P.
Stewart, L.
Vieira, J. D.
Villar, J.
Vogel, J.
Walckiers, L.
Zioutas, K.
Source :
JCAP 1003:032,2010
Publication Year :
2009

Abstract

We present the results of a search for a high-energy axion emission signal from 7Li (0.478 MeV) and D(p,gamma)3He (5.5 MeV) nuclear transitions using a low-background gamma-ray calorimeter during Phase I of the CAST experiment. These so-called "hadronic axions" could provide a solution to the long-standing strong-CP problem and can be emitted from the solar core from nuclear M1 transitions. This is the first such search for high-energy pseudoscalar bosons with couplings to nucleons conducted using a helioscope approach. No excess signal above background was found.<br />Comment: 20 pages, 8 figures, final version to be published in JCAP

Subjects

Subjects :
High Energy Physics - Experiment

Details

Database :
arXiv
Journal :
JCAP 1003:032,2010
Publication Type :
Report
Accession number :
edsarx.0904.2103
Document Type :
Working Paper
Full Text :
https://doi.org/10.1088/1475-7516/2010/03/032
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