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First axion results from the XENON100 experiment


XENON100 Collaboration; et al; Auger, M; Barrow, P; Baudis, L; Behrens, A; Beltrame, P; Kessler, G; Kish; Mayani Paras, D; Schumann, M (2014). First axion results from the XENON100 experiment. Physical Review D (Particles, Fields, Gravitation and Cosmology), 90(6):062009.

Abstract

We present the first results of searches for axions and axionlike particles with the XENON100 experiment. The axion-electron coupling constant, gAe, has been probed by exploiting the axioelectric effect in liquid xenon. A profile likelihood analysis of 224.6 live days × 34-kg exposure has shown no evidence for a signal. By rejecting gAe larger than 7.7×10-12 (90% C.L.) in the solar axion search, we set the best limit to date on this coupling. In the frame of the DFSZ and KSVZ models, we exclude QCD axions heavier than 0.3 and 80 eV /c2, respectively. For axionlike particles, under the assumption that they constitute the whole abundance of dark matter in our galaxy, we constrain gAe to be lower than 1×10-12 (90% C.L.) for masses between 5 and 10 keV /c2.

Abstract

We present the first results of searches for axions and axionlike particles with the XENON100 experiment. The axion-electron coupling constant, gAe, has been probed by exploiting the axioelectric effect in liquid xenon. A profile likelihood analysis of 224.6 live days × 34-kg exposure has shown no evidence for a signal. By rejecting gAe larger than 7.7×10-12 (90% C.L.) in the solar axion search, we set the best limit to date on this coupling. In the frame of the DFSZ and KSVZ models, we exclude QCD axions heavier than 0.3 and 80 eV /c2, respectively. For axionlike particles, under the assumption that they constitute the whole abundance of dark matter in our galaxy, we constrain gAe to be lower than 1×10-12 (90% C.L.) for masses between 5 and 10 keV /c2.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Date:September 2014
Deposited On:21 Nov 2014 08:02
Last Modified:14 Feb 2018 21:59
Publisher:American Physical Society
ISSN:1550-2368
OA Status:Closed
Publisher DOI:https://doi.org/10.1103/PhysRevD.90.062009
Related URLs:http://www.zora.uzh.ch/id/eprint/148811/

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