Octupole phonon model based on the shell model for octupole vibrational states

2018 ◽  
Vol 98 (4) ◽  
Author(s):  
N. Yoshinaga ◽  
K. Yanase ◽  
K. Higashiyama ◽  
E. Teruya
Keyword(s):  
Shell Model ◽  
Vibrational States ◽  
Model Based ◽  
Phonon Model

SHELL MODEL BASED REACTION RATES FOR rp-PROCESS NUCLEI IN THE MASS RANGE A=44–63

2001 ◽  
Vol 79 (2) ◽  
pp. 241-292 ◽  
Author(s):  
J.L. FISKER ◽  
V. BARNARD ◽  
J. GÖRRES ◽  
K. LANGANKE ◽  
G. MARTÍNEZ-PINEDO ◽  
...  
Keyword(s):  
Shell Model ◽  
Mass Range ◽  
Reaction Rates ◽  
Model Based ◽  
Rp Process

scholarly journals Towards a unification of independent particle and collective models

2020 ◽  
Vol 19 ◽  
pp. 140
Author(s):  
G. S. Anagnostatos
Keyword(s):  
Shell Model ◽  
Collective Models ◽  
Fundamental Properties ◽  
Model Based ◽  
Independent Particle ◽  
Average Shape

A unification of Independent Particle and Collective Models is proposed via the Isomorphic Shell Model. Through this model, based on fundamental properties of fermions, an average shape for each nucleus is derived which simultaneously reproduces independent particle and collective properties. 20Ne is taken as an example.

Dynamic Torsional Buckling of an Embedded Double-Walled Carbon Nanotube

2007 ◽  
Vol 334-335 ◽  
pp. 745-748 ◽  
Author(s):  
C. Sun ◽  
Guo Xing Lu ◽  
K. Liu
Keyword(s):  
Carbon Nanotube ◽  
Shell Model ◽  
Continuum Mechanics ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Interlayer Spacing ◽  
Buckling Load ◽  
Torsional Buckling ◽  
Model Based ◽  
The Difference

An elastic double-shell model based on continuum mechanics is presented to study the dynamic torsional buckling of an embedded double-walled carbon nanotube (EDWCNT). Based on the model, a condition is derived to predict the buckling load of the EDWCNT. It is shown that the buckling load of the EDWCNT for dynamic torsional buckling is no less than that for the static torsional buckling. Further, the effect of the van der Waals forces is discussed when an inner nanotube is inserted into an embedded outer one. In particular, the paper shows that, in the absence of the initial van der Waals forces, the buckling load of an EDWCNT is always in-between that of an isolated inner tube and of an embedded outer nanotube, which is different from the result obtained by neglecting the difference of radii. This indicates that disregarding the difference of the radii of the double-walled nanotubes can not properly describe the effect of the van der Waals forces between interlayer spacing.

scholarly journals Shell-model-based deformation analysis of light cadmium isotopes

2017 ◽  
Vol 96 (1) ◽  
Author(s):  
T. Schmidt ◽  
K. L. G. Heyde ◽  
A. Blazhev ◽  
J. Jolie
Keyword(s):  
Shell Model ◽  
Deformation Analysis ◽  
Model Based

Shell model based thermonuclear (p,γ) rates in the lower pf-shell

2001 ◽  
Vol 688 (1-2) ◽  
pp. 453-455 ◽  
Author(s):  
J.L. Fisker ◽  
J. Görres ◽  
K. Langanke ◽  
G. Martı́nez-Pinedo ◽  
M.C. Wiescher
Keyword(s):  
Shell Model ◽  
Model Based ◽  
Pf Shell

scholarly journals Incoherent imaging of crystals using thermally scattered electrons

1995 ◽  
Vol 449 (1936) ◽  
pp. 273-293 ◽  
Keyword(s):  
Diffuse Scattering ◽  
Oscillator Model ◽  
X Ray Diffraction ◽  
Atomic Column ◽  
Thermal Diffuse Scattering ◽  
X Ray ◽  
Model Based ◽  
Incoherent Imaging ◽  
Thermal Diffuse ◽  
Phonon Model

Thermal diffuse scattering of electrons through large angles by a simple low-index crystal projection is examined in the context of a phonon model, based on the Warren approximation of X-ray diffraction. The scattering from an individual atomic column is visualized in terms of an assembly of independent ‘packets’ of atoms. Within a packet, the scattering is partially coherent, causing the columnar intensity to deviate from that calculated with an Einstein independent oscillator model. For typical atomic spacings, this deviation is limited to within 20%.

MULTI-MAJOR-SHELL SHELL MODEL FOR HEAVY NUCLEI–AN EXTENDED PROJECTED SHELL MODEL

2008 ◽  
Vol 17 (supp01) ◽  
pp. 159-176 ◽  
Author(s):  
YANG SUN ◽  
CHENG-LI WU
Keyword(s):  
Shell Model ◽  
Rotational Motion ◽  
Original Version ◽  
Heavy Nuclei ◽  
Vibrational States ◽  
Projected Shell Model ◽  
Deformed Nuclei ◽  
Major Shell ◽  
Truncation Scheme ◽  
Collective Vibrations

The projected shell model (PSM) in its original version is an efficient shell model truncation scheme for well deformed nuclei. However, the model is applicable only to rotational motion, but not collective vibrations. In this paper, we discuss a scheme that extends the PSM applicability to low-lying rotational and vibrational states possibly in all kinds of heavy nuclei (from deformed via transitional to spherical), thus rendering it to be a more general multi-major-shell shell model for heavy nuclei. Three known types of vibration (β, γ, and scissors-mode) are discussed.

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