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Title:
Neutron background in large-scale xenon detectors for dark matter searches
Authors:
Carson, M. J.; Davies, J. C.; Daw, E.; Hollingworth, R. J.; Kudryavtsev, V. A.; Lawson, T. B.; Lightfoot, P. K.; McMillan, J. E.; Morgan, B.; Paling, S. M.; Robinson, M.; Spooner, N. J. C.; Tovey, D. R.
Affiliation:
AA(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AB(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AC(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AD(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AE(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AF(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AG(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AH(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AI(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AJ(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AK(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AL(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK), AM(Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK)
Publication:
Astroparticle Physics, Volume 21, Issue 6, p. 667-687. (APh Homepage)
Publication Date:
09/2004
Origin:
ELSEVIER
Keywords:
Dark matter, WIMPs, Neutron background, Neutron flux, Spontaneous fission, (α, n) reactions, Radioactivity, Cosmic-ray muons underground, Photomultipliers
PACS Keywords:
Protons and neutrons, Supersymmetric partners of known particles, Baryon production, Hadron-induced low- and intermediate-energy reactions and scattering, Hadron-induced high- and super-high-energy interactions, Background radiations
Abstract Copyright:
(c) 2004 Elsevier B.V.
DOI:
10.1016/j.astropartphys.2004.05.001
Bibliographic Code:
2004APh....21..667C

Abstract

Simulations of the neutron background for future large-scale particle dark matter detectors are presented. Neutrons were generated in rock and detector elements via spontaneous fission and (α,n) reactions, and by cosmic-ray muons. The simulation techniques and results are discussed in the context of the expected sensitivity of a generic liquid xenon dark matter detector. Methods of neutron background suppression are investigated. A sensitivity of 10-9-10-10 pb to WIMP-nucleon interactions can be achieved by a tonne-scale detector.
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