scholarly journals The Nilsson Model and Sven Gösta Nilsson

2006 ◽  
Vol T125 ◽  
Author(s):  
Ben Mottelson
Keyword(s):  
Nilsson Model

The Deformation Structure of the Nuclei 32S and 36Ar

2017 ◽  
Vol 13 (2) ◽  
pp. 4678-4688
Author(s):  
K. A. Kharroube
Keyword(s):  
Single Particle ◽  
Electric Quadrupole ◽  
Quadrupole Moments ◽  
Moments Of Inertia ◽  
Deformation Structures ◽  
Particle Potential ◽  
Nilsson Model ◽  
Single Particle Potential ◽  
Axes Of Symmetry ◽  
Good Agreement

We applied two different approaches to investigate the deformation structures of the two nuclei S32 and Ar36 . In the first approach, we considered these nuclei as being deformed and have axes of symmetry. Accordingly, we calculated their moments of inertia by using the concept of the single-particle Schrödinger fluid as functions of the deformation parameter β. In this case we calculated also the electric quadrupole moments of the two nuclei by applying Nilsson model as functions of β. In the second approach, we used a strongly deformed nonaxial single-particle potential, depending on Î² and the nonaxiality parameter γ , to obtain the single-particle energies and wave functions. Accordingly, we calculated the quadrupole moments of S32 and Ar36 by filling the single-particle states corresponding to the ground- and the first excited states of these nuclei. The moments of inertia of S32 and Ar36 are then calculated by applying the nuclear superfluidity model. The obtained results are in good agreement with the corresponding experimental data.

An investigation of the Nilsson model potential in the spherical limit

1976 ◽  
Vol 267 ◽  
pp. 40-50 ◽  
Author(s):  
J. Rekstad ◽  
G. Løvhøiden
Keyword(s):  
Model Potential ◽  
Nilsson Model ◽  
Spherical Limit

Examination of the Harmonic Oscillator Approximation in the Nilsson Model

1973 ◽  
Vol 51 (9) ◽  
pp. 956-967 ◽  
Author(s):  
B. Hird ◽  
K. H. Huang
Keyword(s):  
Energy Level ◽  
Ground State ◽  
Radial Dependence ◽  
Ground State Spin ◽  
Major Shell ◽  
Harmonic Oscillator Approximation ◽  
Nilsson Model ◽  
The One ◽  
State Spin ◽  
Body Potential

The major shell mixed Nilsson model which includes hexadecapole deformations predicts states from the 1g9/2 subshell in the low lying energy level spectra of 25Mg–25Al in a way which is not found experimentally. The ground state spin cannot be explained with this model for reasonable values of the deformation. These difficulties are removed when a Saxon–Woods function is used for the radial dependence of the one body potential. A good fit to the experimental levels is then produced for accepted deformations, but only if the RPC terms is considerably reduced.

Excited states of 31P and the Nilsson model

1966 ◽  
Vol 21 (6) ◽  
pp. 690-693 ◽  
Author(s):  
K. Ramavataram
Keyword(s):  
Excited States ◽  
Nilsson Model

Hexadecapole deformation in the nuclear 2s–ld shell

1968 ◽  
Vol 46 (24) ◽  
pp. 2749-2751 ◽  
Author(s):  
R. J. Turner ◽  
L. E. H. Trainor
Keyword(s):  
Ground States ◽  
The Self ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Nilsson Model

It is shown that the 5/2+ spins of the ground states in 25Al and 25Mg are evidence for hexadecapole contributions to the Nilsson model for the self-consistent field.

POPULATION OF ROTATION BANDS IN γ-DECAY OF ANALOG STATES IN 23Na

2009 ◽  
Vol 18 (04) ◽  
pp. 1084-1087
Author(s):  
I. V. USHAKOV ◽  
A. N. VODIN ◽  
G. K. KHOMYAKOV
Keyword(s):  
Proton Beam ◽  
Rotational Bands ◽  
Isobaric Analog ◽  
Nilsson Model ◽  
Mass Nucleus

The γ-decay from [Formula: see text] isobaric analog levels was studied in odd-mass nucleus 23 Na . The investigations were performed using the proton beam at E p = 1623, 1721, 1803 and 1835 keV. It was shown that during γ-decay, mainly low-lying levels of 23 Na are populated; among these levels, we could isolate rotational bands with [Formula: see text] and [Formula: see text], based on the seventh [Formula: see text] and ninth [Formula: see text] orbits of the Nilsson scheme, respectively. The intensities of the M1 transitions were compared with the results of the calculations within the Nilsson model.

A Nilsson model for deformed phonons

1969 ◽  
Vol 130 (1) ◽  
pp. 77-87 ◽  
Author(s):  
P.O. Lipas ◽  
J. Savolainen
Keyword(s):  
Nilsson Model

The Cranked Nilsson Model

1991 ◽  
pp. 51-74 ◽  
Author(s):  
T. Bengtsson ◽  
I. Ragnarsson ◽  
S. Åberg
Keyword(s):  
Nilsson Model

Odd Proton States in 165Tm, 167Tm, 169Tm, and 171Tm

1974 ◽  
Vol 52 (21) ◽  
pp. 2108-2126 ◽  
Author(s):  
H. C. Cheung ◽  
D. G. Burke ◽  
G. Løvhøiden
Keyword(s):  
Proton Transfer ◽  
Nuclear Structure ◽  
Cross Sections ◽  
Quadrupole Deformation ◽  
Angular Distributions ◽  
Coriolis Coupling ◽  
Reaction Products ◽  
Structure Factors ◽  
Nilsson Model ◽  
Photographic Emulsions

Proton states in the odd mass isotopes 165Tm, 167Tm, 169Tm, and 171Tm have been studied using (3He, d) and (α, t) reactions with 24 MeV 3He and 27 MeV 4He beams. The reaction products were analyzed with a magnetic spectrograph and detected with photographic emulsions, giving a resolution (FWHM) of 16–18 keV. The proton transfer l values were determined from (3He, d) angular distributions and from the ratios of (3He, d) and (α, t) cross sections. Nuclear structure factors, extracted using DWBA cross sections, were compared to those predicted by the Nilsson model with pairing corrections and Coriolis coupling included. Most of the previous assignments for low lying proton states have been confirmed, and several new ones were made. It is shown that the energy systematics of the intrinsic proton states cannot be attributed to variations in the quadrupole deformation, ε2, but can be explained by a small monotonic variation in the hexadecapole deformation, ε4.

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