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

collaboration, X; Aprile, E; Alfonsi, M; Arisaka, K; Arneodo, F; Balan, C; Baudis, L; ... Weinheimer, C; + view all (2013) Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data. Physical Review Letters , 111 , Article 021301. 10.1103/PhysRevLett.111.021301. Green open access

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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 x 34 kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with 129-Xe and 131-Xe nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6 GeV, with a minimum cross section of 3.5 x 10^{-40} cm^2 at a WIMP mass of 45 GeV, at 90% confidence level.

Type: Article
Title: Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.111.021301
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.111.021301
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1384775
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