Self-Consistent Calculations of the Quadrupole Moments of the Lowest 3- States in Sn and Pb Isotopes

被引：7

作者：

Kamerdzhiev, S. P. ^{[1
]}

Voitenkov, D. A. ^{[2
]}

Saperstein, E. E. ^{[1
,3
]}

Tolokonnikov, S. V. ^{[1
,4
]}

机构：

[1] Natl Res Ctr, Kurchatov Inst, Moscow 123182, Russia

[2] Res Inst Struct Graphite Mat, Moscow 111524, Russia

[3] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia

[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

来源：

JETP LETTERS | 2018年 / 108卷 / 03期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

QUASI-PARTICLE EXCITATIONS; NUCLEI; TABLE;

D O I：

10.1134/S0021364018150079

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A self-consistent approach to anharmonic effects based on the quantum many-body theory is for the first time used to calculate the quadrupole moments of the lowest 3(-) states in Sn and Pb isotopes, including the Sn-100, Sn-132, and Pb-208 doubly magic ones. The consistency between the mean nuclear field and the effective interaction is maintained using the energy-density-functional method with known parameters of the Fayans functional. Thereby, the quadrupole moments of the lowest 3(-) states of isotopes with nucleon pairing are reliably predicted, and the existing data for the Pb-208 isotope are reproduced. It has been shown that the new three-quasiparticle correlations are responsible for slightly more than half of the observed effect and the remaining part is due to the quadrupole polarizability of the nucleus.

引用

页码：155 / 160

页数：6

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