Second- and Third-Order Anharmonic Effects within the Quantum Many-Body Theory

被引：0
作者：
Shitov, M. I. [1 ]
Kamerdzhiev, S. P. [1 ]
机构：
[1] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia
来源：
PHYSICS OF PARTICLES AND NUCLEI | 2019年 / 50卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
QUADRUPOLE-MOMENTS; STATES; NUCLEI;
D O I：
10.1134/S1063779619050216
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The paper presents a brief review of the results in the self-consistent theory of the anharmonic effects of the second and third orders in the phonon production amplitude, based on the quantum many-body theory. Numerical (for second-order effects) and theoretical analyses of new, i.e., three- and four-quasiparticle correlations in the ground state (backward-going graphs) in magic nuclei and in nuclei with pairing are given. A formula for the probability of transition between one- and two-phonon states is obtained and compared to the solution of a similar problem within the quasiparticle-phonon model. It is shown that the approach under consideration contains a number of new effects.
引用
收藏
页码：544 / 549
页数：6
相关论文
共 16 条
[1]  
Avdeenkov AV, 1999, PHYS ATOM NUCL+, V62, P563
[2]   STATIC QUADRUPOLE MOMENTS OF FIRST 2+ STATES OF SPHERICAL NUCLEI IN A SCHEMATIC MODEL [J].
BIRBRAIR, BL .
PHYSICS LETTERS B, 1970, B 32 (03) :165-&
[3]  
Bohr A., 1974, Nuclear Structure
[4]   QUADRUPOLE-MOMENTS OF 2+(1) STATE OF PROTON-CLOSED-SHELL NUCLEI [J].
BROGLIA, RA ;
LIOTTA, R ;
PAAR, V .
PHYSICS LETTERS B, 1972, B 38 (07) :480-&
[5]  
Hamamoto I., 1974, Physics Reports. Physics Letters Section C, V10C, P63, DOI 10.1016/0370-1573(74)90019-2
[6]   Self-Consistent Calculations of the Quadrupole Moments of the Lowest 3- States in Sn and Pb Isotopes [J].
Kamerdzhiev, S. P. ;
Voitenkov, D. A. ;
Saperstein, E. E. ;
Tolokonnikov, S. V. .
JETP LETTERS, 2018, 108 (03) :155-160
[7]   Self-Consistent Description of EL Transitions between One-Phonon States in Magic Nuclei [J].
Kamerdzhiev, S. P. ;
Voitenkov, D. A. ;
Sapersteina, E. E. ;
Tolokonnikov, S. V. ;
Shitov, M. I. .
JETP LETTERS, 2017, 106 (03) :139-144
[8]  
Kamerdzhiev S. P., 2019, PISMA ESKP TEOR FIZ, V109, P65, DOI [10.1134/S0370274X19010132, DOI 10.1134/S0370274X19010132]
[9]  
KHODEL VA, 1976, SOV J NUCL PHYS+, V24, P367
[10]   FINITE FERMI SYSTEMS-THEORY AND SELF-CONSISTENCY RELATIONS [J].
KHODEL, VA ;
SAPERSTEIN, EE .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1982, 92 (05) :183-337
12