Structural Configurations in an Extended Orbiting Cluster Model for Molecular Resonance States

1997 ◽  
Vol 06 (02) ◽  
pp. 259-274 ◽  
Author(s):  
Raj K. Gupta ◽  
Satish Kumar ◽  
Werner Scheid
Keyword(s):  
Cluster Model ◽  
Separation Distance ◽  
Nuclear Forces ◽  
Molecular Configuration ◽  
Moments Of Inertia ◽  
Composite Systems ◽  
Relative Separation ◽  
Full Rotation ◽  
Structural Configurations ◽  
Molecular Resonance

An extended orbiting cluster model (EOCM), which includes structural configurations in terms of two-centre nuclear shapes, is studied. In all the representative reactions with observed resonances studied here, the relative separation distance Δ R between the surfaces of the two nuclei in the "equivalent" dinuclear molecular configuration is found to be less than 2 fm, the range of attractive nuclear forces. The moments of inertia for the equivalent dinuclear shapes are related with one full rotation of the intermediate composite systems. Applications are also made to reactions with no observed resonances.

3d-4s and 3d-4p electronic transitions in M2+ : NaF AND M2+ : KMgF3 (Μ = V, Cr, and Mn). Results of a cluster-model calculation

1987 ◽  
Vol 84 ◽  
pp. 855-861 ◽  
Author(s):  
M. Flórez ◽  
M. Bermejo ◽  
V. Luaña ◽  
E. Francisco ◽  
J.M. Recio ◽  
...  
Keyword(s):  
Model Calculation ◽  
Cluster Model ◽  
Electronic Transitions

Long-Acting Composite Systems Based on Powdered Medicinal Plants and Nanosilica

2017 ◽  
Vol 13 (2) ◽  
pp. 53-59
Author(s):  
V.V. Turov ◽  
◽  
T.V. Krupska ◽  
A.P. Golovan ◽  
L.S. Andriyko ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Composite Systems ◽  
Long Acting

Nuclear Strategy in the Modern Era

2014 ◽  
Author(s):  
Vipin Narang
Keyword(s):  
Deterrent Effect ◽  
Regional Power ◽  
Nuclear Forces ◽  
Regional Powers ◽  
Nuclear Strategy ◽  
Weak Institutions ◽  
Nuclear Age ◽  
International Stability ◽  
The World ◽  
Modern Era

The world is in a second nuclear age in which regional powers play an increasingly prominent role. These states have small nuclear arsenals, often face multiple active conflicts, and sometimes have weak institutions. How do these nuclear states—and potential future ones—manage their nuclear forces and influence international conflict? Examining the reasoning and deterrence consequences of regional power nuclear strategies, this book demonstrates that these strategies matter greatly to international stability and it provides new insights into conflict dynamics across important areas of the world such as the Middle East, East Asia, and South Asia. The book identifies the diversity of regional power nuclear strategies and describes in detail the posture each regional power has adopted over time. Developing a theory for the sources of regional power nuclear strategies, the book offers the first systematic explanation of why states choose the postures they do and under what conditions they might shift strategies. It then analyzes the effects of these choices on a state's ability to deter conflict. Using both quantitative and qualitative analysis, the book shows that, contrary to a bedrock article of faith in the canon of nuclear deterrence, the acquisition of nuclear weapons does not produce a uniform deterrent effect against opponents. Rather, some postures deter conflict more successfully than others. This book considers the range of nuclear choices made by regional powers and the critical challenges they pose to modern international security.

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.

Sign in / Sign up

Export Citation Format

Share Document