Shell-model based study of the direct capture in neutron-rich nuclei

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.

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Cylindrical thin-shell model based on modified strain gradient theory

International Journal of Engineering Science ◽

10.1016/j.ijengsci.2014.01.004 ◽

2014 ◽

Vol 78 ◽

pp. 27-47 ◽

Cited By ~ 113

Author(s):

Hamid Zeighampour ◽

Y. Tadi Beni

Keyword(s):

Shell Model ◽

Strain Gradient ◽

Thin Shell ◽

Strain Gradient Theory ◽

Gradient Theory ◽

Modified Strain Gradient Theory ◽

Model Based

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Dynamic Torsional Buckling of an Embedded Double-Walled Carbon Nanotube

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.334-335.745 ◽

2007 ◽

Vol 334-335 ◽

pp. 745-748 ◽

Cited By ~ 2

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.

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Shell-model-based deformation analysis of light cadmium isotopes

Physical Review C ◽

10.1103/physrevc.96.014302 ◽

2017 ◽

Vol 96 (1) ◽

Cited By ~ 13

Author(s):

T. Schmidt ◽

K. L. G. Heyde ◽

A. Blazhev ◽

J. Jolie

Keyword(s):

Shell Model ◽

Deformation Analysis ◽

Model Based

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

Nuclear Physics A ◽

10.1016/s0375-9474(01)00753-9 ◽

2001 ◽

Vol 688 (1-2) ◽

pp. 453-455 ◽

Cited By ~ 1

Author(s):

J.L. Fisker ◽

J. Görres ◽

K. Langanke ◽

G. Martı́nez-Pinedo ◽

M.C. Wiescher

Keyword(s):

Shell Model ◽

Model Based ◽

Pf Shell

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DEFORMED SHELL MODEL RESULTS FOR TWO-NEUTRINO POSITRON DOUBLE BETA DECAY OF 84Sr

International Journal of Modern Physics E ◽

10.1142/s021830131101957x ◽

2011 ◽

Vol 20 (08) ◽

pp. 1723-1733 ◽

Cited By ~ 5

Author(s):

R. SAHU ◽

V. K. B. KOTA

Keyword(s):

Shell Model ◽

Beta Decay ◽

Single Particle ◽

Double Beta Decay ◽

Orbital Energy ◽

Decay Modes ◽

Fock States ◽

Hartree Fock ◽

Model Based ◽

Reasonable Description

Half-lives [Formula: see text] for two-neutrino positron double beta decay modes β+ EC/ECEC are calculated for 84 Sr , a nucleus of current experimental interest, within the framework of the deformed shell model based on Hartree–Fock states employing a modified Kuo interaction in (2p3/2, 1f5/2, 2p1/2, 1g9/2) space. For a reasonable description of the spectra of 84 Sr and 84 Kr and to generate allowed GT strengths, the single particle energies of the proton and neutron 1g9/2 orbitals, relative to the 2p3/2 orbital energy, are chosen to be 3.5 MeV and 1.5 MeV for both 84 Sr and 84 Rb and 1.5 MeV and 1.5 MeV for 84 Kr . With this, the calculated half-lives for the β+ EC and ECEC modes are ~1026 yr and ~4×1024 yr respectively.

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