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Gemma experiment: Three years of the search for the neutrino magnetic moment

  • Physics of Elementary Particles and Atomic Nuclei. Experiment
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Abstract

The result of the 3-year neutrino magnetic moment measurement at the Kalinin Nuclear Power Plant (KNPP) with the GEMMA spectrometer is presented. Antineutrino-electron scattering is investigated. A high-purity germanium detector 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 cm−2 s−1. The scattered electron spectra taken in (5184 + 6798) and (1853 + 1021) h for the reactor ON and OFF periods are compared. The upper limit for the neutrino magnetic moment μv < 3.2 × 10−11μ B at 90% CL is derived from the data processing.

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Authors and Affiliations

  1. State Science Center, Institute for Theoretical and Experimental Physics, Moscow, Russia

    A. G. Beda & A. S. Starostin

  2. Joint Institute for Nuclear Research, Dubna, Russia

    V. B. Brudanin, V. G. Egorov, D. V. Medvedev & M. V. Shirchenko

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  1. A. G. Beda
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  2. V. B. Brudanin
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  3. V. G. Egorov
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  4. D. V. Medvedev
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  5. M. V. Shirchenko
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  6. A. S. Starostin
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Correspondence to A. G. Beda.

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Beda, A.G., Brudanin, V.B., Egorov, V.G. et al. Gemma experiment: Three years of the search for the neutrino magnetic moment. Phys. Part. Nuclei Lett. 7, 406–409 (2010). https://doi.org/10.1134/S1547477110060063

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  • DOI: https://doi.org/10.1134/S1547477110060063

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