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Searches for heavy neutrinos in the decays of positively charged kaons

  • Elementary Particles and Fields
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Abstract

According to predictions of the νMSM model, a heavy neutrino may exist in the mass range below 1 GeV. Searches for rare kaon decays make it possible to study the heavy-neutrino-mass range M π < m ν H < M K . A preliminary analysis of data from the E949 experiment performed at the Brookhaven National Laboratory (BNL, USA) is performed in the present study. Basic background processes are studied, and it is shown that a sensitivity at a level of 4 × 10−8 to the K + → µ+ ν H branching ratio can be reached for the mass value of m ν H = 250 MeV.

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Authors and Affiliations

  1. Institute for Nuclear Research, Russian Academy of Sciences, pr. Shestidesyatiletiya Oktyabrya 7a, Moscow, 117312, Russia

    A. T. Shaykhiev, Yu. G. Kudenko & A. N. Khotyantsev

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  1. A. T. Shaykhiev
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  2. Yu. G. Kudenko
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  3. A. N. Khotyantsev
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Correspondence to A. T. Shaykhiev.

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Original Russian Text © A.T. Shaykhiev, Yu.G. Kudenko, A.N. Khotyantsev, 2011, published in Yadernaya Fizika, 2011, Vol. 74, No. 5, pp. 814–819.

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Shaykhiev, A.T., Kudenko, Y.G. & Khotyantsev, A.N. Searches for heavy neutrinos in the decays of positively charged kaons. Phys. Atom. Nuclei 74, 788–793 (2011). https://doi.org/10.1134/S1063778811050206

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  • DOI: https://doi.org/10.1134/S1063778811050206

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