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Search Results: 1 - 10 of 8854 matches for " Henry Wong "
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Ultra-Low-Energy Germanium Detector for Neutrino-Nucleus Coherent Scattering and Dark Matter Searches
Henry T. Wong
Physics , 2008, DOI: 10.1142/S0217732308027801
Abstract: The status and plans of a research program 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, a threshold of 100-200 eV and a sub-keV background comparable to underground experiments were achieved with prototype detectors. New limits were set for WIMPs with mass between 3-6 GeV. The prospects of the realization of full-scale experiments are discussed.
Low Energy Neutrino Physics at the Kuo-Sheng Reactor Neutrino Laboratory in Taiwan
Henry T. Wong
Physics , 2003, DOI: 10.1016/j.nuclphysbps.2004.11.076
Abstract: A laboratory has been constructed by the TEXONO Collaboration at the Kuo-Sheng Reactor Power Plant in Taiwan to study low energy neutrino physics. The facilities of the laboratory are described. A limit on the neutrino magnetic moment of $\rm{\munuebar < 1.3 \times 10^{-10} ~ \mub}$ at 90% confidence level has been achieved from measurements with a high-purity germanium detector. Other physics topics, as well as the various R&D program, are surveyed.
Neutrino Magnetic Moments: Status and Prospects
Henry T. Wong
Physics , 2004, DOI: 10.1016/j.nuclphysbps.2005.01.106
Abstract: Finite neutrino magnetic moments are consequences of non-zero neutrino masses. The particle physics foundations of the subject are summarized. The astrophysical bounds as well as the results from recent direct experiments are reviewed. Future projects and prospects are surveyed.
Neutrino Experiments : Highlights
Henry T. Wong
Physics , 2001,
Abstract: This article consists of two parts. The first section presents the highlights on the goals of neutrino physics, status of the current neutrino experiments and future directions and program. The second section describes the theme, program and research efforts for the TEXONO Collaboration among scientists from Taiwan and China.
Research Program towards Observation of Neutrino-Nucleus Coherent Scattering
Henry T. Wong
Physics , 2005, DOI: 10.1088/1742-6596/39/1/064
Abstract: The article describes the research program pursued by the TEXONO Collaboration towards an experiment to observe coherent scattering between neutrinos and the nucleus at the power reactor. The motivations of studying this process are surveyed. In particular, a threshold of 100-200 eV has been achieved with an ultra-low-energy germanium detector prototype. This detection capability at low energy can also be adapted to conduct searches of Cold Dark Matter in the low-mass region as well as to enhance the sensitivities in the study of neutrino magnetic moments.
Neutrino Physics and Astrophysics : Highlights
Henry Tsz-King Wong
Physics , 2005,
Abstract: This article presents an overview of neutrino physics research, with highlights on the physics goals, results and interpretations of the current neutrino experiments and future directions and program. It is not meant to be a comprehensive account or detailed review article. Interested readers can pursue the details via the listed references.
A Pilot Experiment with Reactor Neutrinos in Taiwan
Henry T. Wong,Jin Li
Physics , 1998, DOI: 10.1016/S0920-5632(99)00415-6
Abstract: A Collaboration comprising Taiwan and mainland Chinese scientists has been built up since 1996 to pursue a experimental program in neutrino and astro-particle physics in Taiwan. A pilot experiment to be performed at the Nuclear Power Station II in Taiwan is now under intense preparation. It will make use of a 600 kg CsI(Tl) crystal calorimeter to study various neutrino interactions. The feasibility of performing a long baseline reactor neutrino experiment will also be investigated. The conceptual design and the physics to be addressed by the pilot experiment are presented.
Recent Results and Status of TEXONO Experiments
Venktesh Singh,Henry T. Wong
Physics , 2004,
Abstract: This article reviews the research program and efforts for the TEXONO Collaboration on neutrino and astro-particle physics. The ``flagship'' program is on reactor-based neutrino physics at the Kuo-Sheng (KS) Power Plant in Taiwan. A limit on the neutrino magnetic moment of munuebar < 1.3 times 10^{-10} mub at 90% confidence level was derived from measurements with a high purity germanium detector. Other physics topics at KS, as well as the various R&D program, are discussed.
Research Program of the TEXONO Collaboration: Status and Highlights
Henry Tsz-King Wong,Jin Li
Physics , 2002,
Abstract: This article reviews the research program and efforts for the TEXONO Collaboration among scientists from Taiwan and China. These include reactor-based neutrino physics at the Kuo-Sheng Power Plant in Taiwan as well as various R&D efforts related to the various experimental techniques in neutrino and astro-particle physics.
Sensitivities of Low Energy Reactor Neutrino Experiments
Hau-Bin Li,Henry T. Wong
Physics , 2001, DOI: 10.1088/0954-3899/28/6/323
Abstract: The low energy part of the reactor neutrino spectra has not been experimentally measured. Its uncertainties limit the sensitivities in certain reactor neutrino experiments. The origin of these uncertainties are discussed, and the effects on measurements of neutrino interactions with electrons and nuclei are studied. Comparisons are made with existing results. In particular, the discrepancies between previous measurements with Standard Model expectations can be explained by an under-estimation of the low energy reactor neutrino spectra. To optimize the experimental sensitivities, measurements for $\nuebar$-e cross-sections should focus on events with large ($>$1.5 MeV) recoil energy while those for neutrino magnetic moment searches should be based on events $<$100 keV. The merits and attainable accuracies for neutrino-electron scattering experiments using artificial neutrino sources are discussed.
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