Interacting boson model study of the spin evolution of the yrast E2 transition probabilities in {sup 162}Yb

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.70.044308· OSTI ID:20695648

Dobes, J ^[1]; Jolos, R V ^[2]

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1. Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 25068 Rez (Czech Republic)
2. Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)

An angular momentum dependence of the yrast E2 transition probabilities and the spectra of the low-lying states in the even-even collective nuclei are analyzed. It is shown that in the interacting boson model (IBM) it is possible to describe simultaneously the transitionlike low-lying level scheme with the rotational-like yrast B(E2) values. For some values of the parameters of the general IBM-1 Hamiltonian, the values of the ratio B(E2;(I+2){sub 1}{yields}I{sub 1})/B(E2;2{sub 1}{sup +}{yields}0{sub 1}{sup +}) can fall down below the rotational limit of the geometrical model and also below the prediction of the SU(3) limit of the IBM.

• OSTI ID: 20695648
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 70; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
E2-TRANSITIONS
EVOLUTION
HAMILTONIANS
INTERACTING BOSON MODEL
PARITY
PROBABILITY
ROTATIONAL STATES
SPIN
SU-3 GROUPS
YRAST STATES
YTTERBIUM 162