First Dark Matter Results from the XENON100 Experiment

Journal Article · Fri Sep 24 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.131302· OSTI ID:21471015

Aprile, E; Choi, B; Giboni, K -L; Lang, R F; Lim, K E; Melgarejo Fernandez, A J; Plante, G ^[1]; Arisaka, K; Brown, E; Cline, D B; Lam, C W; Pantic, E; Teymourian, A; Wang, H ^[2]; Arneodo, F; Fattori, S ^[3]; Askin, A; Baudis, L; Behrens, A; Ferella, A D ^[4]

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1. Physics Department, Columbia University, New York, New York 10027 (United States)
2. Physics and Astronomy Department, University of California, Los Angeles (United States)
3. INFN Laboratori Nazionali del Gran Sasso, Assergi, 67100 (Italy)
4. Physics Institute, University of Zuerich, Winterthurerstr. 190, CH-8057 (Switzerland)

The XENON100 experiment, in operation at the Laboratori Nazionali del Gran Sasso in Italy, is designed to search for dark matter weakly interacting massive particles (WIMPs) scattering off 62 kg of liquid xenon in an ultralow background dual-phase time projection chamber. In this Letter, we present first dark matter results from the analysis of 11.17 live days of nonblind data, acquired in October and November 2009. In the selected fiducial target of 40 kg, and within the predefined signal region, we observe no events and hence exclude spin-independent WIMP-nucleon elastic scattering cross sections above 3.4x10{sup -44} cm{sup 2} for 55 GeV/c{sup 2} WIMPs at 90% confidence level. Below 20 GeV/c{sup 2}, this result constrains the interpretation of the CoGeNT and DAMA signals as being due to spin-independent, elastic, light mass WIMP interactions.

• OSTI ID: 21471015
• Journal Information: Physical Review Letters, Vol. 105, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.105.131302; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
ELASTIC SCATTERING
GEV RANGE
ITALIAN ORGANIZATIONS
LIQUID SCINTILLATION DETECTORS
MULTIPARTICLE SPECTROMETERS
NONLUMINOUS MATTER
NUCLEONS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
REST MASS
SPIN
TIME PROJECTION CHAMBERS
WEAK INTERACTIONS
XENON
ANGULAR MOMENTUM
BARYONS
BASIC INTERACTIONS
DRIFT CHAMBERS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
GASES
HADRONS
INTERACTIONS
MASS
MATTER
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
NATIONAL ORGANIZATIONS
NONMETALS
PARTICLE PROPERTIES
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RARE GASES
SCATTERING
SCINTILLATION COUNTERS
SPECTROMETERS