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IDM2008 - Identification of Dark Matter 2008
IDM2008 - Identification of Dark Matter 2008
18-22 August 2008 AlbaNova
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Projected backgrounds and sensitivity for the LUX dark matter experiment. (15'+5')
 
The LUX experiment will search for Weakly Interacting Massive Particles 
(WIMPs) using
a liquid Xenon time projection chamber. Simultaneous measurement of 
ionization and
scintillation allows for 3D position reconstruction, with a nuclear recoil energy
threshold as low as 4.5 keV. The ratio of ionization to scintillation allows event 
by
event discrimination between nuclear and electronic recoils, and self-shielding
provides significant additional gamma ray background reduction. LUX will detect 
WIMP
dark matter, or exclude its spin-independent cross section (per nucleon) down 
to a
level of 7E-46 cm^2.  Based on above-ground calibrations and data from the 
XENON10
experiment, LUX is expected to reject up to 99.9% of the dominant electron-
recoil
background at detector threshold (4.5 keVr), with 50% acceptance for nuclear 
recoils.
This talk will discuss expected gamma ray, beta, and neutron backgrounds and 
the
projected sensitivity of the LUX experiment. Also discussed will be the 
dependence of
the LUX sensitivity on the liquid Xenon nuclear recoil scintillation yield.
 
Id: 478
Place: AlbaNova
Room: Oskar Klein auditorium
Starting date:
19-Aug-2008   13:45
Duration: 20'
Contribution type: Talk
Primary Authors: Prof. MCKINSEY, Daniel (Yale University)
Presenters: Prof. MCKINSEY, Daniel
Material: slide Slides
 
Included in session: Direct detection - experiments
Included in track: Parallel A: Background studies for direct detection
 

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