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

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons30560

Hampel,  W.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30647

Kaether,  F.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30768

Lindner,  M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons73111

Marrodan Undagoitia,  Teresa
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31012

Schreiner,  J.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31050

Simgen,  H.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons31159

Weber,  M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

XENON100 collaboration, Aprile, E., Alfonsi, M., Arisaka, K., Arneodo, F., Balan, C., et al. (2013). Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data. Physical Review Letters, 111(2): 021301, pp. 1-5. doi:10.1103/PhysRevLett.111.021301.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-48B3-8
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.