Neutrino Physics and Dark Matter Physics with Ultra-Low-Energy Germanium Detector

The status and plans of the TEXONO Collaboration on the development of ultra-low-energy germanium detectors with sub-keV sensitivities are reported. We survey the scientific goals which include the observation of neutrino-nucleus coherent scattering, the studies of neutrino magnetic moments, as well...

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Bibliographic Details
Main Author: Shin-Ted, Lin
Format: Conference Proceeding
Language:English
Subjects:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
COHERENT SCATTERING
COSMOLOGY
GE SEMICONDUCTOR DETECTORS
GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MAGNETIC MOMENTS
MASS
NEUTRINOS
NONLUMINOUS MATTER
RELICT RADIATION
TELESCOPES
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Summary:The status and plans of the TEXONO Collaboration on the development of ultra-low-energy germanium detectors with sub-keV sensitivities are reported. We survey the scientific goals which include the observation of neutrino-nucleus coherent scattering, the studies of neutrino magnetic moments, as well as the searches of WIMP dark matter. In particular, an energy threshold of 220+/-10 eV at an efficiency of 50% were achieved with a four-channel prototype detectors each of an active mass of 5 g. New limits were set for WIMPs with mass between 3-6 GeV. The prospects of the realization of full-scale experiments are discussed. This detector technique makes the unexplored sub-keV energy window accessible for new neutrino and dark matter experiments.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3012272