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Fine structure of the strength function for β+/EC decay of 160gHo (25.6 min)

  • Physics of Elementary Particles and Atomic Nuclei. Experiment
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Abstract

A strength function for the β+/EC decay of the deformed 160gHo (25.6 min) nucleus has been obtained from experimental data. The fine structure of the strength function S β(E) is analyzed. It is found to have a pronounced resonant structure for Gamow-Teller transitions. In S β(E) with μτ = +1 the Gamow-Teller resonance has been observed to split into two components. This splitting is associated with anisotropy of isovector density oscillation in deformed nuclei. The β+/EC strength function for first-forbidden transitions is obtained in the Coulomb (ξ) approximation. It is shown that S β(E) for first-forbidden transitions does not have a pronounced resonant structure.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, Russia

    I. N. Izosimov, V. G. Kalinnikov & A. A. Solnyshkin

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  1. I. N. Izosimov
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  2. V. G. Kalinnikov
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  3. A. A. Solnyshkin
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The text was submitted by the authors in English.

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Izosimov, I.N., Kalinnikov, V.G. & Solnyshkin, A.A. Fine structure of the strength function for β+/EC decay of 160gHo (25.6 min). Phys. Part. Nuclei Lett. 5, 427–431 (2008). https://doi.org/10.1134/S154747710805004X

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  • DOI: https://doi.org/10.1134/S154747710805004X

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