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20 April 2024

» arxiv » 1307.1488

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Axion searches with the EDELWEISS-II experiment
E. Armengaud ; Q. Arnaud ; C. Augier ; A. Benoit ; A. Benoit ; L. Bergé ; T. Bergmann ; J. Blümer ; A. Broniatowski ; V. Brudanin ; P. Camus ; A. Cazes ; B. Censier ; M. Chapellier ; F. Charlieux ; F. Couëdo ; P. Coulter ; G.A. Cox ; T. de Boissière ; M. De Jesus ; Y. Dolgorouky ; A.A. Drillien ; L. Dumoulin ; K. Eitel ; D. Filosofov ; N. Fourches ; J. Gascon ; G. Gerbier ; M. Gros ; L. Hehn ; S. Henry ; S. Hervé ; G. Heuermann ; N. Holtzer ; V. Humbert ; A. Juillard ; C. Kéfélian ; M. Kleifges ; H. Kluck ; V. Kozlov ; H. Kraus ; V.A. Kudryavtsev ; H. Le Sueur ; M. Mancuso ; C. Marrache-Kikuchi ; S. Marnieros ; A. Menshikov ; X-F. Navick ; C. Nones ; E. Olivieri ; P. Pari ; B. Paul ; M.C. Piro ; O. Rigaut ; M. Robinson ; S. Rozov ; V. Sanglard ; B. Schmidt ; B. Siebenborn ; D. Tcherniakhovski ; M. Tenconi ; L. Vagneron ; R.J. Walker ; M. Weber ; E. Yakushev ; X. Zhang ;
Date:	4 Jul 2013
Abstract:	We present new constraints on the couplings of axions and more generic axion-like particles using data from the EDELWEISS-II experiment. The EDELWEISS experiment, located at the Underground Laboratory of Modane, primarily aims at the direct detection of WIMPs using germanium bolometers. It is also sensitive to the low-energy electron recoils that would be induced by solar or dark matter axions. Using a total exposure of up to 448 kg.d, we searched for axion-induced electron recoils down to 2.5 keV within four scenarios involving different hypotheses on the origin and couplings of axions. We set a 95% CL limit on the coupling to photons $g_{Agamma}<2.13 imes 10^{-9}$ GeV$^{-1}$ in a mass range not fully covered by axion helioscopes. We also constrain the coupling to electrons, $g_{Ae} < 2.56 imes 10^{-11}$, similar to the more indirect solar neutrino bound. Finally we place a limit on $g_{Ae} imes g_{AN}^{ m eff}<4.70 imes 10^{-17}$, where $g_{AN}^{ m eff}$ is the effective axion-nucleon coupling for $^{57}$Fe. Combining these results we fully exclude the mass range $0.91,{ m eV}<m_A<80$ keV for DFSZ axions and $5.73,{ m eV}<m_A<40$ keV for KSVZ axions.
Source:	arXiv, 1307.1488
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