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Semiphenomenological approximation of the sums of experimental radiative strength functions for dipole gamma transitions of energy E γ below the neutron binding energy B n for mass numbers in the range 40 ≤ A ≤ 200

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Abstract

The sums of radiative strength functions for primary dipole gamma transitions, k(E1) + k(M1), are approximated to a high precision by a superposition of two functional dependences in the energy range 0.5 < E 1 < B n − 0.5 MeV for the 40K, 60Co, 71,74Ge, 80Br, 114Cd, 118Sn, 124,125Te, 128I, 137,138,139Ba, 140La, 150Sm, 156,158Gd, 160Tb, 163,164,165Dy, 166Ho, 168Er, 170Tm, 174Yb, 176,177Lu, 181Hf, 182Ta, 183,184,185,187W, 188,190,191,193Os, 192Ir, 196Pt, 198Au, and 200Hg nuclei. It is shown that, in any nuclei, radiative strength functions are a dynamical quantity and that the values of k(E1) + k(M1) for specific energies of gamma transitions and specific nuclei are determined by the structure of decaying and excited levels, at least up to the neutron binding energy B n .

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  1. Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia

    A. M. Sukhovoj, W. I. Furman & V. A. Khitrov

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  1. A. M. Sukhovoj
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Original Russian Text © A.M. Sukhovoj, W.I. Furman, V.A. Khitrov, 2008, published in Yadernaya Fizika, 2008, Vol. 71, No. 6, pp. 1009–1024.

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Sukhovoj, A.M., Furman, W.I. & Khitrov, V.A. Semiphenomenological approximation of the sums of experimental radiative strength functions for dipole gamma transitions of energy E γ below the neutron binding energy B n for mass numbers in the range 40 ≤ A ≤ 200. Phys. Atom. Nuclei 71, 982–997 (2008). https://doi.org/10.1134/S1063778808060033

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