Volume 107, Number 6, September 2014
|Number of page(s)||6|
|Published online||15 September 2014|
Spectroscopic factors of magic and semimagic nuclei within the self-consistent theory of finite Fermi systems
1 Kurchatov Institute - 123182 Moscow, Russia
2 National Research Nuclear University MEPhI - 115409 Moscow, Russia
3 Moscow Institute of Physics and Technology - 141700 Dolgoprudny, Russia
Received: 15 July 2014
Accepted: 26 August 2014
A scheme is presented to find single-particle spectroscopic factors (SF) of magic and semimagic nuclei within the self-consistent theory of finite Fermi systems (TFFS). In addition to the energy dependence of the mass operator Σ induced by the surface-phonon coupling effects which are commonly considered in this problem, the in-volume energy dependence of the operator Σ inherent in the self-consistent TFFS is also taken into account. This dependence arises due to the effect of high-lying particle-hole excitations and persists in nuclear matter. The self-consistent basis of the energy density functional method by Fayans et al. is used. Both the surface and in-volume contributions to the SFs turned out to be of comparable magnitude. The results for magic 40,48Ca and 208Pb nuclei and semimagic lead isotopes are presented.
PACS: 21.60.Jz – Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations) / 21.10.Jx – Spectroscopic factors and asymptotic normalization coefficients / 24.50.+g – Direct reactions
© EPLA, 2014
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