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First result for the neutrino magnetic moment from measurements with the GEMMA spectrometer
- Source :
- Physics of Atomic Nuclei. 70:1873-1884
- Publication Year :
- 2007
- Publisher :
- Pleiades Publishing Ltd, 2007.
-
Abstract
- The first result of the neutrino magnetic moment measurement at the Kalininskaya Nuclear Power Plant (KNPP) with the GEMMA spectrometer is presented. An antineutrino-electron scattering is investigated. A high-purity germanium detector of 1.5 kg placed 13.9 m away from the 3 GW reactor core is used in the spectrometer. The antineutrino flux is $2.73\times 10^{13} \nu_e / cm^2 / s$. The differential method is used to extract the $\nu$-e electromagnetic scattering events. The scattered electron spectra taken in 6200 and 2064 hours for the reactor ON and OFF periods are compared. The upper limit for the neutrino magnetic moment $\mu_\nu < 5.8\times 10^{-11}$ Bohr magnetons at 90{%} CL is derived from the data processing.
Details
- ISSN :
- 1562692X and 10637788
- Volume :
- 70
- Database :
- OpenAIRE
- Journal :
- Physics of Atomic Nuclei
- Accession number :
- edsair.doi...........14215345ea98dfe3632f4a792dfa4cff
- Full Text :
- https://doi.org/10.1134/s1063778807110063