The Results of Search for the Neutrino Magnetic Moment in GEMMA Experiment

The result of the neutrino magnetic moment measurement at the Kalinin Nuclear Power Plant (KNPP) with GEMMA spectrometer is presented. The antineutrino-electron scattering is investigated. A high-purity germanium detector with a mass of 1.5 kg placed at a distance of 13.9 m from the 3 GWth reactor c...

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Bibliographic Details
Main Authors: A. G. Beda, V. B. Brudanin, V. G. Egorov, D. V. Medvedev, V. S. Pogosov, M. V. Shirchenko, A. S. Starostin
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Advances in High Energy Physics
Online Access:http://dx.doi.org/10.1155/2012/350150
Description
Summary:The result of the neutrino magnetic moment measurement at the Kalinin Nuclear Power Plant (KNPP) with GEMMA spectrometer is presented. The antineutrino-electron scattering is investigated. A high-purity germanium detector with a mass of 1.5 kg placed at a distance of 13.9 m from the 3 GWth reactor core is exposed to the antineutrino flux of 2.7×1013 1/cm2/s. The recoil electron spectra taken in 18134 and 4487 hours for the reactor ON and OFF periods are compared. The upper limit for the neutrino magnetic moment μν<  2.9×10−11μB at 90% C.L. is derived from the data processing.
ISSN:1687-7357
1687-7365