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Title: Anharmonicities in K/sup. pi. / = 0/sup +/ and K/sup. pi. / = 0/sup -/ coupled vibrational spectra of deformed nuclei discussed in a simple model

Abstract

The multiphonon method: i.e., exact diagonalization in the restricted space of collective phonons of different types: is tested in a simple model allowing an exact solution for a many body system of fermions interacting via pairing plus quadrupole and octupole forces. It appears satisfactory for the description of the anharmonicities of the lowest-lying vibrational states with K/sup ..pi../ = 0/sup +/ and 0/sup -/ in deformed nuclei. In particular, it allows electromagnetic transitions between the different one phonon states which cannot be described in any harmonic treatments such as the Tamm-Dancoff or random-phase approximations.

Authors:
; ;
Publication Date:
Research Org.:
Institut des Sciences Nucleaires, 38026 Grenoble-Cedex, France
OSTI Identifier:
5472239
Resource Type:
Journal Article
Journal Name:
Phys. Rev. C; (United States)
Additional Journal Information:
Journal Volume: 28:5
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DEFORMED NUCLEI; VIBRATIONAL STATES; ENERGY-LEVEL TRANSITIONS; HAMILTONIANS; NUCLEAR STRUCTURE; PHONONS; ENERGY LEVELS; EXCITED STATES; MATHEMATICAL OPERATORS; NUCLEI; QUANTUM OPERATORS; QUASI PARTICLES; 653001* - Nuclear Theory- Nuclear Structure, Moments, Spin, & Models

Citation Formats

Jammari, K, Piepenbring, R, and Silvestre-Brac, B. Anharmonicities in K/sup. pi. / = 0/sup +/ and K/sup. pi. / = 0/sup -/ coupled vibrational spectra of deformed nuclei discussed in a simple model. United States: N. p., 1983. Web. doi:10.1103/PhysRevC.28.2136.
Jammari, K, Piepenbring, R, & Silvestre-Brac, B. Anharmonicities in K/sup. pi. / = 0/sup +/ and K/sup. pi. / = 0/sup -/ coupled vibrational spectra of deformed nuclei discussed in a simple model. United States. doi:10.1103/PhysRevC.28.2136.
Jammari, K, Piepenbring, R, and Silvestre-Brac, B. Tue . "Anharmonicities in K/sup. pi. / = 0/sup +/ and K/sup. pi. / = 0/sup -/ coupled vibrational spectra of deformed nuclei discussed in a simple model". United States. doi:10.1103/PhysRevC.28.2136.
@article{osti_5472239,
title = {Anharmonicities in K/sup. pi. / = 0/sup +/ and K/sup. pi. / = 0/sup -/ coupled vibrational spectra of deformed nuclei discussed in a simple model},
author = {Jammari, K and Piepenbring, R and Silvestre-Brac, B},
abstractNote = {The multiphonon method: i.e., exact diagonalization in the restricted space of collective phonons of different types: is tested in a simple model allowing an exact solution for a many body system of fermions interacting via pairing plus quadrupole and octupole forces. It appears satisfactory for the description of the anharmonicities of the lowest-lying vibrational states with K/sup ..pi../ = 0/sup +/ and 0/sup -/ in deformed nuclei. In particular, it allows electromagnetic transitions between the different one phonon states which cannot be described in any harmonic treatments such as the Tamm-Dancoff or random-phase approximations.},
doi = {10.1103/PhysRevC.28.2136},
journal = {Phys. Rev. C; (United States)},
number = ,
volume = 28:5,
place = {United States},
year = {1983},
month = {11}
}