PS09 Neutrino Properties and Oscillations
Neutrino magnetic moment results at the Kuo-Sheng Nuclear Power Plant
Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
Accepted: 27 August 2003
Published online: 19 August 2003
A search of neutrino magnetic moment 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–1keV–1day–1 at 12-60 keV were achieved. Based on 4712 and 1250 hours of Reactor ON and OFF data, respectively, the limits on the neutrino magnetic moment of at 90(68)% confidence level were derived. Indirect bounds of the radiative lifetime of mν 3 τν > 2.8(4.8) × 1018 eV3 s can be inferred. The present status and future plans are discussed.
PACS: 14.60.Lm Neutrino Properties — 13.40.Em Electric and Magnetic Moments
© Società Italiana di Fisica, Springer-Verlag, 2004