Search for solar axions by the CERN axion solar telescope with He 3 buffer gas: Closing the hot dark matter gap

Arik, M. ; Aune, S. ; Barth, K. ; Belov, A. ; Borghi, S. ; Bräuninger, H. ; Cantatore, G. ; Carmona, J.M. (Universidad de Zaragoza) ; Cetin, S.A. ; Collar, J.I. ; Da Riva, E. ; Dafni, T. (Universidad de Zaragoza) ; Davenport, M. ; Eleftheriadis, C. ; Elias, N. ; Fanourakis, G. ; Ferrer-Ribas, E. ; Friedrich, P. ; Galán, J. ; García, J.A. (Universidad de Zaragoza) ; Gardikiotis, A. ; Garza, J.G. (Universidad de Zaragoza) ; Gazis, E.N. ; Geralis, T. ; Georgiopoulou, E. ; Giomataris, I. ; Gninenko, S. ; Gómez, H. ; Gómez Marzoa, M. ; Gruber, E. ; Guthörl, T. ; Hartmann, R. ; Hauf, S. ; Haug, F. ; Hasinoff, M.D. ; Hoffmann, D.H.H. ; Iguaz, F.J. (Universidad de Zaragoza) ; Irastorza, I.G. (Universidad de Zaragoza) ; Jacoby, J. ; Jakovcic, K. ; Karuza, M. ; Königsmann, K. ; Kotthaus, R. ; Krcmar, M. ; Kuster, M. ; Lakic, B. ; Lang, P.M. ; Laurent, J.M. ; Liolios, A. ; Ljubicic, A. ; Luzón, G. (Universidad de Zaragoza) ; Neff, S. ; Niinikoski, T. ; Nordt, A. ; Papaevangelou, T. ; Pivovaroff, M.J. ; Raffelt, G. ; Riege, H. ; Rodríguez, A. ; Rosu, M. ; Ruz, J. ; Savvidis, I. ; Shilon, I. ; Silva, P.S. ; Solanki, S.K. ; Stewart, L. ; Tomás, A. ; Tsagri, M. ; Van Bibber, K. ; Vafeiadis, T. ; Villar, J. (Universidad de Zaragoza) ; Vogel, J.K. ; Yildiz, S.C. ; Zioutas, K.

Resumen: The CERN Axion Solar Telescope has finished its search for solar axions with 3He buffer gas, covering the search range 0.64  eV≲ma≲1.17  eV. This closes the gap to the cosmological hot dark matter limit and actually overlaps with it. From the absence of excess x rays when the magnet was pointing to the Sun we set a typical upper limit on the axion-photon coupling of gaγ≲3.3×10−10  GeV−1 at 95% C.L., with the exact value depending on the pressure setting. Future direct solar axion searches will focus on increasing the sensitivity to smaller values of gaγ, for example by the currently discussed next generation helioscope International AXion Observatory.

Idioma: Inglés

DOI: 10.1103/PhysRevLett.112.091302

Año: 2014

Publicado en: Physical Review Letters 112, 9 (2014), 091302 [6 pp.]
ISSN: 0031-9007

Factor impacto JCR: 7.512 (2014)

Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 6 / 78 = 0.077 (2014) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/EC/FP7/ 240054/EU/Novel Developments in Time Projection Chambers (TPCs) for Rare Event Searches in Underground Astroparticle EXperiments/TREX
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2008-03456
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2011-24058

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)