Axion searches with the EDELWEISS-II experiment

作者：Armengaud E^*; Arnaud Q; Augier C; Benoit A; Benoit A; Berge L; Bergmann T; Bluemer J; Broniatowski A; Brudanin V; Camus P; Cazes A; Censier B; Chapellier M; Charlieux F; Couedo F; Coulter P; Cox G A; de Boissiere T; De Jesus M; Dolgorouky Y; Drillien A A; Dumoulin L; Eitel K; Filosofov D; Fourches N; Gascon J; Gerbier G; Gros M; Hehn L; Henry S; Herve S; Heuermann G; Holtzer N; Humbert V; Juillard A; Kefelian C

来源：Journal of Cosmology and Astroparticle Physics, 2013, 2013(11): 067.

DOI：10.1088/1475-7516/2013/11/067

• axions
• dark matter detectors
• dark matter experiments

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 gA gamma %26lt; 2.15 x 10(-9) GeV-1 in a mass range not fully covered by axion helioscopes. We also constrain the coupling to electrons, g(Ae) %26lt; 2.59 x 10(-11), similar to the more indirect solar neutrino bound. Finally we place a limit on g(Ae) x g(AN)(eff) %26lt; 4.82 x 10(-17), where g(AN)(eff) is the effective axion-nucleon coupling for Fe-57. Combining these results we fully exclude the mass range 0.92 eV %26lt; m(A) %26lt; 80 keV for DFSZ axions and 5.78 eV %26lt; m(A) %26lt; 40 keV for KSVZ axions.

• 出版日期2013-11
• 单位中国地震局