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 Shell-model calculations for upper pf-shell nuclei with an effective interaction

2018 ◽  
Vol 194 ◽  
pp. 01006
Author(s):  
Kalin Drumev
Keyword(s):  
Shell Model ◽  
Effective Interaction ◽  
Model Space ◽  
Model Calculations ◽  
Energy Eigenstates ◽  
Mixed Symmetry ◽  
Symmetry Approach ◽  
Oscillator Shell ◽  
Single Oscillator ◽  
Pf Shell

Results obtained for the energy spectra and the low-lying positive-parity energy eigenstates of the upper p f -shell nuclei 64Ge and 68Se with the use of the effective interaction JUN45 are reported. We address the question of how appropriate is the possibility to construct a symmetry-adapted shell model in a single oscillator shell using a Pairing-plus-Quadrupole Hamiltonian. Specifically, we study the goodness of the symmetries pseudo SU(3) and O(6) in the structure of the energy eigenstates. Finally, we relate our results to a proposed mixed-symmetry approach which is able to simultaneously account for the presence of both the pairing and the quadrupole modes as the most important ingredients in the effective interaction while using a restricted part of the full model space.

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 evolution in the sd-pf shell studied by the shell model

2009 ◽  
Author(s):  
Yutaka Utsuno ◽  
Takaharu Otsuka ◽  
B. Alex Brown ◽  
Michio Honma ◽  
Takahiro Mizusaki ◽  
...  
Keyword(s):  
Shell Model ◽  
Pf Shell
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