Phys. Rev. Lett. 90, 131802 (2003) [4 pages]Limit on the Electron Neutrino Magnetic Moment from the Kuo-Sheng Reactor Neutrino Experiment
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-1 keV-1 day-1 at 12–60 keV were achieved. Based on 4712 and 1250 h of reactor ON and OFF data, respectively, the limit on the neutrino magnetic moment of μν̅ e<1.3×10-10μB at 90% confidence level was derived. An indirect bound of the ν̅ e radiative lifetime of mν3τν>2.8×1018 eV3 s can be inferred. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.131802
DOI:
10.1103/PhysRevLett.90.131802
PACS:
14.60.Lm, 13.15.+g, 13.40.Em
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