6533b821fe1ef96bd127ae1d
RESEARCH PRODUCT
The neutron background of the XENON100 dark matter search experiment
A. J. Melgarejo FernandezM. AlfonsiLaura BaudisP. BeltrameP. BeltrameEhud DuchovniS. E. A. OrrigoS. E. A. OrrigoJoão CardosoF. GaoM. GarbiniM. SelviLuke GoetzkeE. TziaferiKaixuan NiB. ChoiH. ContrerasP. ShaginElena AprileM. WeberJ. A. M. LopesA. KishGabriella SartorelliH. LandsmanS. RosendahlL. Scotto LavinaM. Le CallochK. E. LimP. R. ScovellA. MolinarioM. P. DecowskiC. LevyManfred LindnerW. HampelK. LungA. P. ColijnS. FattoriO. VitellsJ.m.f. Dos SantosHui WangEthan BrownA. RizzoJ. LamblinM. MessinaUwe OberlackK. ArisakaSebastian LindemannApril S. BrownKarl GiboniGuillaume PlanteFlorian KaetherF. V. MassoliJochen SchreinerQing LinBoris BauermeisterY. MengA. BehrensGiacomo BrunoW. FulgioneE. PanticJean-pierre CussonneauRan BudnikC. BalanMarc SchumannMarc SchumannN. PrielA. TeymourianD. ThersR. F. LangHardy SimgenA. D. FerellaF. ArneodoT. Marrodán UndagoitiaT. Marrodán UndagoitiaCh. WeinheimerC. GhagW. T. ChenC. GrignonR. PersianiK. BokelohE. K. U. Grosssubject
Nuclear and High Energy PhysicsParticle physicsLarge Underground Xenon experimentPhysics::Instrumentation and DetectorsDark matterGeant4Astrophysics::Cosmology and Extragalactic AstrophysicsWIMP Argon Programme01 natural sciencesNuclear physicsWIMPNuclear and High Energy Physics Neutron Background Dark Matter Search XENON TPC0103 physical sciencesNeutron[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsNuclear ExperimentGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)ComputingMilieux_MISCELLANEOUSSpontaneous fissionPhysicsElastic scatteringFluxMuons010308 nuclear & particles physicsAstrophysics::Instrumentation and Methods for AstrophysicsDetectorsWeakly interacting massive particlesHigh Energy Physics::ExperimentSimulationdescription
TheXENON100 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 |