Starting Points (Collaboration ; Laborat ories ; Research Program) Physics & Requirements for ULE-HPGe - fo cus on WIMP Searches R&D on ULE-HPGe Prototypes Status & Plans Ultra-Low-Energy HPGe Detector for WIMP Searches @ Henry T. Wong / 王王王 Academia Sinica / 王王王 王王
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Starting Points (Collaboration ; Laboratories ; Research Program)
Ultra-Low-Energy HPGe Detector for WIMP Searches. Starting Points (Collaboration ; Laboratories ; Research Program) Physics & Requirements for ULE-HPGe - focus on WIMP Searches R&D on ULE-HPGe Prototypes Status & Plans. Henry T. Wong / 王子敬 Academia Sinica / 中央研究院. @. - PowerPoint PPT Presentation
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Starting Points (Collaboration ; Laboratories ; Research Program)
Physics & Requirements for ULE-HPGe - focus on WIMP Searches
R&D on ULE-HPGe Prototypes Status & Plans
Ultra-Low-Energy HPGe Detector for WIMP Searches
@
Henry T. Wong /王子敬Academia Sinica /中央研
究院
TEXONO Collaboration
Collaboration : Taiwan (AS, INER, KSNPS, NTU) ; China (IHEP, CIAE, THU, NKU, NJU) ; Turkey (METU) ; India (BHU)
Operated by KIMS Collaboration, 700 m of rock overburden in east Korea
flagship program on CsI(Tl) for CDM searches [SK Kim’s talk]
TEXONO Install 5 g ULB-ULEGe at Y2L ; Study background and feasibility for CDM searches ; may evolve into a full-scale O(1 kg) CDM experiment
Yang-Yang Underground Laboratory
Y2L
“Ultra-Low-Energy” HPGe Detectors ULEGe – developed for soft X-rays detection ; easy & inexp
ensive & robust operation Prototypes built and studied :
5 g @ Y2L 4 X 5 g @ KS/Y2L 10 g @ AS/CIAE segmented 180 g @ AS/KS
Being built : 500 g single element Physics for O[100 eV threhold1 kg mass1 cpd dete
ctor] : N coherent scattering Low-mass WIMP searches This Talk Improve sensitivities on Implications on reactor operation monitoring Open new detector window & detection channel avai
lable for surprises
Sensitivity Plot for CDM-WIMP direct search
Low (<10 GeV) WIMP Mass / Sub-keV Recoil Energy : Not favored by the most-explored specific models on galactic-boun
d SUSY-neutralinos as CDM ; still allowed by generic SUSY Solar-system bound WIMPs require lower recoil energy detection Other candidates favoring low recoils exist: e.g. non-pointlike SUSY