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

Journal Article · Tue Nov 01 04:00:00 EST 1983 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.28.2136· OSTI ID:5472239

Jammari, K; Piepenbring, R; Silvestre-Brac, B

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.

• Research Organization: Institut des Sciences Nucleaires, 38026 Grenoble-Cedex, France
• OSTI ID: 5472239
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 28:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DEFORMED NUCLEI
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HAMILTONIANS
MATHEMATICAL OPERATORS
NUCLEAR STRUCTURE
NUCLEI
PHONONS
QUANTUM OPERATORS
QUASI PARTICLES
VIBRATIONAL STATES