Search of neutrino magnetic moments with a high-purity germanium detector at the Kuo-Sheng nuclear power station
- Institute of Physics, Academia Sinica, Taipei 115, Taiwan (China)
- Kuo-Sheng Nuclear Power Station, Taiwan Power Company, Kuo-Sheng 207, Taiwan (China)
- Institute of Nuclear Energy Research, Lung-Tan 325, Taiwan (China)
A search of neutrino magnetic moments was carried out at the Kuo-Sheng nuclear power station at a distance of 28 m from the 2.9 GW reactor core. With a high purity germanium detector of mass 1.06 kg surrounded by scintillating NaI(Tl) and CsI(Tl) crystals as anti-Compton detectors, a detection threshold of 5 keV and a background level of 1 kg{sup -1} keV{sup -1} day{sup -1} near threshold were achieved. Details of the reactor neutrino source, experimental hardware, background understanding, and analysis methods are presented. Based on 570.7 and 127.8 days of Reactor ON and OFF data, respectively, at an average Reactor ON electron antineutrino flux of 6.4x10{sup 12} cm{sup -2} s{sup -1}, the limit on the neutrino magnetic moments of {mu}{sub {nu}{sub e}}<7.4x10{sup -11}{mu}{sub B} at 90% confidence level was derived. Indirect bounds on the {nu}{sub e} radiative decay lifetimes were inferred.
- OSTI ID:
- 20935186
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevD.75.012001; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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