2006/05/31 by H. T. Wong, H. B. Li, TEXONO Collaboration +29 · 6 citations
Engineering · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Detector #Electrical engineering #Engineering #Germanium #Neutrino #Neutrino Physics Research #Nuclear engineering #Nuclear physics #Nuclear power #Optoelectronics #Particle physics theoretical and experimental studies #Physics #Power (physics) #Semiconductor detector #hep-ex
paper · pdf · doi:10.1103/physrevd.75.012001
published as Phys.Rev.D75:012001,2007 · 16 pages, 15 figures, 9 tables
arxiv created 2006/11/14 · openalex publication_date 2007/01/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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^\ensuremath-1 keV^\ensuremath-1 day^\ensuremath-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 6.4\ifmmode×\else\texttimes\fi1012 cm^\ensuremath-2 s^\ensuremath-1, the limit on the neutrino magnetic moments of \ensuremathμ_\ensuremathνe<7.4\ifmmode×\else\texttimes\fi10^\ensuremath-11\ensuremathμB at 90% confidence level was derived. Indirect bounds on the \ensuremathνe radiative decay lifetimes were inferred.