2002/12/04 by H. B. Li, TEXONO Collaboration · 1 citation
Physics and Astronomy · #hep-ex #nucl-ex
paper · pdf · doi:10.1103/physrevlett.90.131802
published as Phys.Rev.Lett.90:131802,2003 · 4 pages, 3 figures
arxiv created 2002/12/04 · arxiv updated 2009/11/30
A laboratory has been set up at the Kuo-Sheng Nuclear Power Station at a distance of 28 m from the 2.9 GW reactor core to study low energy neutrino physics. A detector threshold of 5 keV and a background level of 1 counts/day-keV-kg at 12-60 keV was achieved with a high purity germanium detector of mass 1.06 kg surrounded by anti-Compton detectors with NaI(Tl) and CsI(Tl) crystal scintillators. Using 4712 and 1250 hours of Reactor ON and OFF data, respectively, limits of the neutrino magnetic moment of munu < 1.3(1.0) X 10-10 muB at 90(68)% confidence level were derived. Indirect bounds of the nuebar radiative lifetime of mnu3 * taunu > 2.8(4.8) X 1018 eV3 s can be inferred.