Neutrino Physics & Fundamental Symmetries LDRD DR Review, LANL, Sept.15, 2003

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DEAP CLEAN Detectors for Low-Energy Particle
Astrophysics Andrew Hime Physics Division, MS
H803, Los Alamos National Laboratory Los Alamos,
NM 87545, USA ahime_at_lanl.gov PANIC 2005, Sante
Fe, NM
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(No Transcript)
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LNe Detector
M.Boulay, A.Hime, and J.Lidgard (nucl-ex/0410025)
Signals
Background
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Pulse Shape Discrimination in a LNe Detector
M.Boulay, A.Hime, and J.Lidgard (nucl-ex/0410025)
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Sensitivity to WIMPs and Neutrinos with LNe
M.Boulay, A.Hime, and J.Lidgard (nucl-ex/0410025)
WIMP sensitivity
pp statistical uncertainty
10-46
lt1
300 cm
1 year livetime
Detector size
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Background rejection with LAr (DEAP)
M.Boulay and A.Hime (astro-ph/0411358)
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Background rejection with LAr (simulation)
M.Boulay and A.Hime (astro-ph/0411358)
From simulation, rejection gt 108 _at_ 10
keV (Goal for SuperCDMS is 108)
108 simulated e-s
100 simulated WIMPs
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M.Boulay and A.Hime (astro-ph/0411358)
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Test-Cryostat for DEAP at LANL
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g-like
PMT Pulses from LAr
neutron-like
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Discrimination in LAr from DEAP-0
ltpegt 60
preliminary
ltpegt 60 corresponds to 10 keV with 75 coverage
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miniCLEAN Geometry for Background Studies D-M.
Mei A. Hime
Rf 26 cm for Mf 100 kg RPMT 38 cm RC
46 cm
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Preliminary Background Study for 100 kg-LAr
miniCLEAN D-M. Mei A. Hime
(?,n) from construction materials
? 0.24 in ROI

• 0.024 with
• n-capture tag

• Exploring
• improvements

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DEAP CLEAN Collaborators Boston University D.
Gastler and E. Kearns Gran Sasso National
Laboratory A. Ianni Los Alamos National
Laboratory S. Elliott, A. Gisler, A. Hime, S.
Lamereaux, D-M. Mei, K. Rielage, L. Rodriguez, L.
Stonehill, and J. Wouters National Institute for
Standards and Technology K. Coakley and J.
Nico Queens University M. Boulay, M. Chen, K.
Graham, A. Hallin, J. Lidgard, R. Matthew, and P.
Skensved Union College C. Orzel Yale
University M. Harrison, B. Jorns, N. Liang, W.
Lippincott, D. McKinsey, and J. Nikkel