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Investigating 2K-capture in 78Kr with a large-volume copper proportional counter

  • Proceedings of the International Conference “Nucleus-2010. Methods of Nuclear Physics for Femto- and Nanotechnologies”
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

A component analysis of the background of a copper proportional counter with allowance for its input to the parametric region of events due to the expected 2K-capture in 78Kr is presented. The technique of discriminating the simulated events on the edges of the working length of the anode wire is described by comparing the pulse amplitudes of the sought pulse and the first afterpulse in a detector filled with pure krypton without quenchers. The limit on 2K(2ν)-capture for the ground state 78Se (0+ → 0+, g.s.) was found to be T 1/2 ≥ 2.4 × 1021 yr (90% confidence level).

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Authors and Affiliations

  1. Baksan Neutrino Observatory, Institute for Nuclear Research, Russian Academy of Sciences, Neitrino, Elbrus raion, 361609, Kabardino-Balkaria, Russia

    Yu. M. Gavrilyuk, A. M. Gangapshev, V. V. Kazalov, V. V. Kuz’minov & S. P. Yakimenko

  2. Karazin National University, Kharkov, 61077, Ukraine

    S. I. Panasenko & S. S. Ratkevich

Authors
  1. Yu. M. Gavrilyuk
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  2. A. M. Gangapshev
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  3. V. V. Kazalov
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  4. V. V. Kuz’minov
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  5. S. I. Panasenko
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  6. S. S. Ratkevich
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  7. S. P. Yakimenko
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Corresponding author

Correspondence to V. V. Kazalov.

Additional information

Original Russian Text © Yu.M. Gavrilyuk, A.M. Gangapshev, V.V. Kazalov, V.V. Kuz’minov, S.I. Panasenko, S.S. Ratkevich, S.P. Yakimenko, 2011, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2011, Vol. 75, No. 4, pp. 562–568.

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Gavrilyuk, Y.M., Gangapshev, A.M., Kazalov, V.V. et al. Investigating 2K-capture in 78Kr with a large-volume copper proportional counter. Bull. Russ. Acad. Sci. Phys. 75, 526–532 (2011). https://doi.org/10.3103/S1062873811040149

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  • DOI: https://doi.org/10.3103/S1062873811040149

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