First Science Results from ZEPLIN-III

Journal Article · Wed Feb 10 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3327774· OSTI ID:21371653

Sumner, T J ^[1]

---

1. Physics Department, Imperial College, London (United Kingdom)

ZEPLIN-III uses a 12 kg two-phase xenon time projection chamber to search for the weakly interacting massive particles (WIMPs) that may account for the dark matter of our Galaxy. The detector measures both scintillation and ionisation produced interactions in the liquid to differentiate between nuclear recoils expected from WIMPs and electron recoil background signals down to approx10 keV nuclear recoil energy. Analysis of 847 kgcentre dotdays of data acquired between February 27th 2008 and May 20th 2008 has excluded a WIMP-nucleon elastic scattering spin-independent cross-section above 8.1x10approx{sup -8} pb at 60 GeVc{sup -2} with a 90% confidence limit. ZEPLIN-III demonstrated better discrimination at low-energy than previously achieved by any other xenon-based experiments.

• OSTI ID: 21371653
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1200; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BARYONS
CALCULATION METHODS
CROSS SECTIONS
DRIFT CHAMBERS
ELASTIC SCATTERING
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
GASES
HADRONS
INTERACTIONS
KEV RANGE
LEPTONS
LIQUID SCINTILLATION DETECTORS
MATTER
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MULTIPARTICLE SPECTROMETERS
MULTIWIRE PROPORTIONAL CHAMBERS
NEUTRON SOURCES
NONLUMINOUS MATTER
NONMETALS
NUCLEONS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE SOURCES
POSTULATED PARTICLES
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RADIATION SOURCES
RARE GASES
RECOILS
SCATTERING
SCINTILLATION COUNTERS
SPECTROMETERS
SPIN
SUPERSYMMETRY
SYMMETRY
TIME PROJECTION CHAMBERS
XENON