Electromagnetic transition probabilities in the natural-parity rotational bands ofGd155,157

1992 ◽  
Vol 46 (4) ◽  
pp. 1257-1266 ◽  
Author(s):  
H. Kusakari ◽  
M. Oshima ◽  
A. Uchikura ◽  
M. Sugawara ◽  
A. Tomotani ◽  
...  
Keyword(s):  
Transition Probabilities ◽  
Electromagnetic Transition ◽  
Rotational Bands ◽  
Natural Parity

Electromagnetic transition probabilities in the natural-parity rotational band ofYb173

1989 ◽  
Vol 40 (5) ◽  
pp. 2084-2090 ◽  
Author(s):  
M. Oshima ◽  
M. Matsuzaki ◽  
S. Ichikawa ◽  
H. Iimura ◽  
H. Kusakari ◽  
...  
Keyword(s):  
Rotational Band ◽  
Transition Probabilities ◽  
Electromagnetic Transition ◽  
Natural Parity

Proton band crossings and electromagnetic transition probabilities in 161Lu

1988 ◽  
Vol 489 (3) ◽  
pp. 477-507 ◽  
Author(s):  
C.-H. Yu ◽  
M.A. Riley ◽  
J.D. Garrett ◽  
G.B. Hagemann ◽  
J. Simpson ◽  
...  
Keyword(s):  
Transition Probabilities ◽  
Electromagnetic Transition

Investigation of some even-even selenium isotopes within the interacting boson model-2

Open Physics ◽  
2008 ◽  
Vol 6 (3) ◽  
Author(s):  
Mahmut Böyükata ◽  
İhsan Uluer
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Mass Region ◽  
Experimental Results ◽  
Interacting Boson Model ◽  
Electromagnetic Transition ◽  
Boson Model ◽  
Selenium Isotopes ◽  
Good Agreement

AbstractThe even-even Selenium isotopes in the A∼80 mass region and the general features of its structure have been investigated within the framework of the interacting boson model-2. The neutron proton version of the model has been applied to the Se (A=74 to 80) isotopes with emphasis on the description of the 01+, 21+, 02+, 22+ and 41+ states. The energy levels, B(E2)and B(M1)electromagnetic transition probabilities were calculated. The results of these calculations were compared with previous experimental results and were shown to be in good agreement.

Electromagnetic transition probabilities in the doubly odd N = 91 nucleus 154Eu

1984 ◽  
Vol 417 (1) ◽  
pp. 1-23 ◽  
Author(s):  
H. Rotter ◽  
C. Heiser ◽  
K.D. Schilling ◽  
W. Andrejtscheff ◽  
L.K. Kostov ◽  
...  
Keyword(s):  
Transition Probabilities ◽  
Electromagnetic Transition

Low-spin electromagnetic transition probabilities inCd102,104

2007 ◽  
Vol 75 (5) ◽  
Author(s):  
N. Boelaert ◽  
A. Dewald ◽  
C. Fransen ◽  
J. Jolie ◽  
A. Linnemann ◽  
...  
Keyword(s):  
Transition Probabilities ◽  
Electromagnetic Transition

scholarly journals Coulomb Excitation of 142Ce and 144Nd

1989 ◽  
Vol 42 (4) ◽  
pp. 345 ◽  
Author(s):  
RH Spear ◽  
WJ Vermeer ◽  
SM Burnett ◽  
GJ Cyapong ◽  
CS Lim
Keyword(s):  
Transition Probabilities ◽  
Coulomb Excitation ◽  
Surface Barrier ◽  
Surface Barrier Detector ◽  
Electromagnetic Transition ◽  
Mixed Symmetry ◽  
Laboratory Angle ◽  
Barrier Detector ◽  
Static Quadrupole ◽  
Silicon Surface Barrier Detector

The N = 84 nuclei 142Ce and 144Nd have been Coulomb-excited using 4He, 12C and 160 projectiles. Scattered particles were detected at a mean laboratory angle of 170.6� with an annular silicon surface-barrier detector. The static quadrupole moment f the 2t state was determined for both nuclei. In addition, various electromagnetic transition probabilities involving the 2~, 2~, 1 and 4t states were measured. Taken in conjunction with previous information, the results show that the properties of 142Ce nd 144Nd are well described by the vibrational U(S) limit of IBM-2, and strongly support the proposition that the 2~ level in each nucleus is an essentially pure one d-boson mixed-symmetry state.

Proton-neutron symplectic model description of $^{20}$Ne

2021 ◽  
Author(s):  
H. G. Ganev
Keyword(s):  
Transition Probabilities ◽  
Irreducible Representations ◽  
Model Description ◽  
Excitation Energies ◽  
Microscopic Description ◽  
Dynamical Group ◽  
Rotational Bands ◽  
Enveloping Algebra ◽  
Model Hamiltonian ◽  
Model Approach

Abstract A microscopic description of the low-lying positive-parity rotational bands in $^{20}$Ne is given within the framework of the symplectic-based proton-neutron shell-model approach provided by the proton-neutron symplectic model (PNSM). For this purpose a model Hamiltonian is used which includes an algebraic interaction, lying in the enveloping algebra of the $Sp(12,R)$ dynamical group of the PNSM, that introduces both horizontal and vertical mixings of different $SU(3)$ irreducible representations within the $Sp(12,R)$ irreducible collective space of $^{20}$Ne. A good overall description is obtained for the excitation energies of the ground and first two excited $\beta$ bands, as well as for the ground state intraband $B(E2)$ quadrupole collectivity and the known interband $B(E2)$ transition probabilities between the low-lying collective states without the use of an effective charge.

Excited states of even-A and odd-A nuclei with deformation-dependent mass parameters for the Kratzer potential

2021 ◽  
Author(s):  
M. Chabab ◽  
I. El-ilali ◽  
A. Lahbas ◽  
M. Oulne
Keyword(s):  
Experimental Data ◽  
Excited States ◽  
Transition Probabilities ◽  
Energy Spectra ◽  
Asymptotic Iteration Method ◽  
Axially Symmetric ◽  
Electromagnetic Transition ◽  
Energy Eigenvalues ◽  
Dependent Mass ◽  
Davidson Potential

The low-lying collective spectra for axially symmetric nuclei are described within the Bohr–Hamiltonian by considering deformation-dependent mass coefficients and Kratzer potential in [Formula: see text] part. The energy eigenvalues and the total wave function of the problem are obtained in compact forms by means of the asymptotic iteration method. The numerical calculations are carried out for energy spectra as well as electromagnetic transition probabilities, and compared with experimental data in both cases: within and without the deformation-dependent mass (DDM) formalism. We investigate the nuclear observables of four even-A nuclei [Formula: see text]Sm, [Formula: see text]Gd, [Formula: see text]Yb, [Formula: see text]W and two odd-A nuclei [Formula: see text]Yb, [Formula: see text]Dy. Moreover, we will show that the choice of the Kratzer potential minimizes the level spacings within the [Formula: see text] band, which are usually overestimated by Bohr–Hamiltonian with Davidson potential.

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