6533b873fe1ef96bd12d4e62
RESEARCH PRODUCT
Study of the electromagnetic background in the XENON100 experiment
Ethan BrownEthan BrownR. SantorelliA. AskinS. FattoriJoão CardosoF. ArneodoE. PanticS. E. A. OrrigoJ. LamblinMarc SchumannMarc SchumannP. ShaginK. ArisakaHardy SimgenA. D. FerellaY. MeiA. C. C. RibeiroKaixuan NiE. TziaferiLaura BaudisD. ThersManfred LindnerHongwei WangR. F. LangA. J. Melgarejo FernandezDavid B. ClineJ. A. M. LopesK. E. LimA. KishQing LinB. ChoiJ.m.f. Dos SantosK. BokelohSebastian LindemannElena AprileT. Marrodán UndagoitiaCh. WeinheimerK. L. GiboniC. W. LamUwe OberlackUwe OberlackK. LungM. WeberG. PlanteA. TeymourianA. Behrenssubject
Nuclear and High Energy PhysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]Physics::Instrumentation and DetectorsMonte Carlo methodDark matterchemistry.chemical_elementFOS: Physical sciences01 natural sciences7. Clean energyParticle detectorNuclear physicsXenonRecoil0103 physical sciences010306 general physicsNuclear ExperimentInstrumentation and Methods for Astrophysics (astro-ph.IM)PhysicsElastic scattering010308 nuclear & particles physicsDetectorAstrophysics::Instrumentation and Methods for Astrophysics[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]chemistryHigh Energy Physics::ExperimentAstrophysics - Instrumentation and Methods for AstrophysicsRadioactive decayAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
The XENON100 experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS), aims to directly detect dark matter in the form of Weakly Interacting Massive Particles (WIMPs) via their elastic scattering off xenon nuclei. We present a comprehensive study of the predicted electronic recoil background coming from radioactive decays inside the detector and shield materials, and intrinsic contamination. Based on GEANT4 Monte Carlo simulations using a detailed geometry together with the measured radioactivity of all detector components, we predict an electronic recoil background in the WIMP-search energy range (0-100 keV) in the 30 kg fiducial mass of less than 10e-2 events/(kg-day-keV), consistent with the experiment's design goal. The predicted background spectrum is in very good agreement with the data taken during the commissioning of the detector, in Fall 2009.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-20 |