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Gemma experiment: The results of neutrino magnetic moment search

  • Physics of Elementary Particles and Atomic Nuclei. Experiment
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Abstract

The result of the neutrino magnetic moment (NMM) measurement at the Kalinin Nuclear Power Plant (KNPP) with GEMMA spectrometer is presented. The antineutrino-electron scattering is investigated. A high-purity germanium (HPGe) 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 cm−2s−1. The recoil electron spectra taken in 18134 and 4487 h for the reactor ON and OFF periods are compared. The upper limit for the NMM μν < 2.9 × 10−11 μB at 90% C.L. 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, V. S. Pogosov, E. A. Shevchik, M. V. Shirchenko & I. V. Zhitnikov

  3. Yerevan Physics Institute, Yerevan, Russia

    V. S. Pogosov

Authors
  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. V. S. Pogosov
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  6. E. A. Shevchik
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  7. M. V. Shirchenko
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  8. A. S. Starostin
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  9. I. V. Zhitnikov
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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: The results of neutrino magnetic moment search. Phys. Part. Nuclei Lett. 10, 139–143 (2013). https://doi.org/10.1134/S1547477113020027

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  • DOI: https://doi.org/10.1134/S1547477113020027

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