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Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data


XENON Collaboration; et al; Baudis, L (2013). Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data. Physical Review Letters, 111(2): 021301.

Abstract

We present new experimental constraints on the elastic, spin-dependent WIMP-nucleon cross section using recent data from the XENON100 experiment, operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 224.6 live days×34  kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with Xe129 and Xe131 nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6  GeV/c2, with a minimum cross section of 3.5×10−40  cm2 at a WIMP mass of 45  GeV/c2, at 90% confidence level.

Abstract

We present new experimental constraints on the elastic, spin-dependent WIMP-nucleon cross section using recent data from the XENON100 experiment, operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 224.6 live days×34  kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with Xe129 and Xe131 nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6  GeV/c2, with a minimum cross section of 3.5×10−40  cm2 at a WIMP mass of 45  GeV/c2, at 90% confidence level.

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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
Language:English
Date:2013
Deposited On:05 Feb 2014 12:51
Last Modified:05 Apr 2016 17:29
Publisher:American Physical Society
ISSN:0031-9007
Publisher DOI:https://doi.org/10.1103/PhysRevLett.111.021301

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