Nuclear recoil scintillation and ionisation yields in liquid xenon from ZEPLIN-III data
arXiv:1106.0694 · doi:10.1016/j.physletb.2011.10.038
Abstract
Scintillation and ionisation yields for nuclear recoils in liquid xenon above 10 keVnr (nuclear recoil energy) are deduced from data acquired using broadband Am-Be neutron sources. The nuclear recoil data from several exposures to two sources were compared to detailed simulations. Energy-dependent scintillation and ionisation yields giving acceptable fits to the data were derived. Efficiency and resolution effects are treated using a light collection Monte Carlo, measured photomultiplier response profiles and hardware trigger studies. A gradual fall in scintillation yield below ~40 keVnr is found, together with a rising ionisation yield; both are in good agreement with the latest independent measurements. The analysis method is applied to both the most recent ZEPLIN-III data, acquired with a significantly upgraded detector and a precision-calibrated Am-Be source, as well as to the earlier data from the first run in 2008. A new method for deriving the recoil scintillation yield, which includes sub-threshold S1 events, is also presented which confirms the main analysis.
7 pages, 7 figures
References in corpus (12)
- First results from a Dark Matter search with liquid Argon at 87 K in the Gran Sasso Underground Laboratory
- Results from the First Science Run of the ZEPLIN-III Dark Matter Search Experiment
- Simultaneous Measurement of Ionization and Scintillation from Nuclear Recoils in Liquid Xenon as Target for a Dark Matter Experiment
- New Measurement of the Scintillation Efficiency of Low-Energy Nuclear Recoils in Liquid Xenon
- The ZEPLIN-III dark matter detector: instrument design, manufacture and commissioning
- Single electron emission in two-phase xenon with application to the detection of coherent neutrino-nucleus scattering
- Measurement of single electron emission in two-phase xenon
- Radioactivity Backgrounds in ZEPLIN-III
- The ZEPLIN-III dark matter detector: performance study using an end-to-end simulation tool
- The ZEPLIN-III Anti-Coincidence Veto Detector
- Performance of the veto detector incorporated into the ZEPLIN-III experiment
- Towards an improved understanding of the relative scintillation efficiency of nuclear recoils in liquid xenon
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- A Global Analysis of Light and Charge Yields in Liquid Xenon
- Response of the XENON100 Dark Matter Detector to Nuclear Recoils
- Can CoGeNT and DAMA Modulations Be Due to Dark Matter?
- Interplay between scintillation and ionization in liquid xenon Dark Matter searches
- Technical Results from the Surface Run of the LUX Dark Matter Experiment
- Single electron emission in two-phase xenon with application to the detection of coherent neutrino-nucleus scattering
- A Review of Basic Energy Reconstruction Techniques in Liquid Xenon and Argon Detectors for Dark Matter and Neutrino Physics Using NEST
- Perspectives to measure neutrino-nuclear neutral current coherent scattering with two-phase emission detector
- Ultra-Low Energy Calibration of LUX Detector using Xe Electron Capture
- First ground-level laboratory test of the two-phase xenon emission detector RED-100
- Discrimination of electronic recoils from nuclear recoils in two-phase xenon time projection chambers
- Measurement and simulation of the muon-induced neutron yield in lead
- Observation of the Dependence of Scintillation from Nuclear Recoils in Liquid Argon on Drift Field
- Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment
- Quenching Factor for Low Energy Nuclear Recoils in a Plastic Scintillator
- Search for sub-GeV dark matter by annual modulation using XMASS-I detector
- Radioactivity Backgrounds in ZEPLIN-III
- Proposed low-energy absolute calibration of nuclear recoils in a dual-phase noble element TPC using D-D neutron scattering kinematics
- Using Effective Operators to Understand CoGeNT and CDMS-Silicon
- Experimental study of ionization yield of liquid xenon for electron recoils in the energy range 2.8 - 80 keV
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- A Review of NEST Models for Liquid Xenon and Exhaustive Comparison to Other Approaches
- Ionization and scintillation of nuclear recoils in gaseous xenon
- Measurement of the ionization yield of nuclear recoils in liquid argon at 80 and 233 keV
- Scintillation and Ionization Responses of Liquid Xenon to Low Energy Electronic and Nuclear Recoils at Drift Fields from 236 V/cm to 3.93 kV/cm
- Simultaneous measurement of the light and charge response of liquid xenon to low-energy nuclear recoils at multiple electric fields
- Constraints on Effective Field Theory Couplings Using 311.2 days of LUX Data
- Revisiting XENON100's Constraints (and Signals?) For Low-Mass Dark Matter
- Measurement of the ionization yield of nuclear recoils in liquid argon using a two-phase detector with electroluminescence gap
- New libraries for simulating neutron scattering in dark matter detector calibrations
- A Spin-Dependent Interpretation for Possible Signals of Light Dark Matter
- Feasibility Study to use Neutron Capture for an Ultra-low Energy Nuclear-recoil Calibration in Liquid Xenon
- A New Analysis Method for WIMP searches with Dual-Phase Liquid Xe TPCs
- Calibrating the scintillation and ionization responses of xenon recoils for high-energy dark matter searches
- Performance data from the ZEPLIN-III second science run