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Título

The neutron background of the XENON100 dark matter search experiment

AutorXenon100 Collaboration; Aprile, Elena; Orrigo, S. E. A.
Palabras claveFlux
Simulation
Detectors
Geant4
Muons
Fecha de publicación1-nov-2013
EditorInstitute of Physics Publishing
CitaciónJournal of Physics G - Nuclear and Particle Physics 40 (11): 115201 - 17 (2013)
ResumenTheXENON100 experiment, installed underground at the LaboratoriNazionali del Gran Sasso, aims to directly detect dark matter in the form of weakly interacting massive particles (WIMPs) via their elastic scattering off xenon nuclei. This paper presents a study on the nuclear recoil background of the experiment, taking into account neutron backgrounds from (alpha, n) reactions and spontaneous fission due to natural radioactivity in the detector and shield materials, as well as muon-induced neutrons. Based on MonteCarlo simulations and using measured radioactive contaminations of all detector components, we predict the nuclear recoil backgrounds for the WIMP search results published by theXENON100 experiment in 2011 and 2012, 0.11(-0.04)(+0.08) events and 0.17(-0.07)(+0.12) events, respectively, and conclude that they do not limit the sensitivity of the experiment.
Versión del editorhttp://dx.doi.org/10.1088/0954-3899/40/11/115201
URIhttp://hdl.handle.net/10261/125233
DOI10.1088/0954-3899/40/11/115201
ISSN0954-3899
E-ISSN1361-6471
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