Results 161 to 170 of about 223,941 (197)

POTENTIAL-ENERGY SURFACES OF SODIUM CLUSTERS WITH QUADRUPOLE, HEXADECAPOLE, AND TRIAXIAL DEFORMATIONS

Surface Review and Letters, 1996
Combining a modified Nilsson-Clemenger model with the shell-correction method, the potential-energy surfaces of sodium clusters with sizes of up to N = 200 atoms are calculated, including nonaxial deformations. For spherical clusters, the model potential is fitted to the single-particle spectra obtained from microscopically self-consistent Kohn-Sham ...
Reimann, S. M., Frauendorf, S.
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The quadrupole moment of the deuteron and local potential models

Physica Scripta, 1989
It was believed that the value of the quadrupole moment of the deuteron Q is too large to be fitted by realistic local potential models. Two simple local potential models for the deuteron with large Q are considered.
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RADIAL MATRIX ELEMENT FOR THE QUADRUPOLE TRANSITION WITH THE MORSE POTENTIAL

Canadian Journal of Physics, 1952
A general formula for the radial part of the matrix element for the quadrupole transition with the Morse potential is derived using standard methods of analysis. The same methods can also be used to derive an expression for the radial part of the dipole transition matrix element.
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Employing a spheroidal global potential to estimate the quadrupole deformation of nuclei

Physics of Atomic Nuclei, 2005
A spheroidal global shell potential is constructed on the basis of the optical model whose global parameters are extracted from experimental data on nucleon-nucleus scattering. This potential is used to estimate the quadrupole deformation of a large number of light, intermediate, and heavy nuclei in the mass-number range 10 ≲ A ≲ 240.
B. S. Ishkhanov, V. N. Orlin
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Pion-nucleus potential parameters and quadrupole effect in deeply bound pionic atom

Nuclear Physics A, 1999
Abstract We have examined a possibility of determining the pion-nucleus potential parameters from the quadrupole hyperfine structure of the deeply bound pionic atoms in deformed nuclei. It is shown that the potential parameter sets, which lead to the similar level shifts and widths for spherical nuclei, predict fairly different hyperfine structure in
N. Nose-Togawa, S. Hirenzaki, K. Kume
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Study of a quadrupole ion trap supplied with a periodic impulsional potential

International Journal of Mass Spectrometry and Ion Processes, 1991
This paper shows the possibility of confining ions inside a quadrupole ion trap supplied with a periodic impulsional potential of the form V0 cosΩt/(1 − k cos2Ωt) with 0 ⩽ k < 1. This potential is very interesting because it presents large zero potential temporal zones during which it is possible to inject ions or electrons inside the trap without ...
S.M. Sadat Kiai, J. Andre, Y. Zerega, G. Brincourt, R. Catella   +4 more
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Tightly trapped highly excited Rydberg atom in dipole–quadrupole potential landscape

Journal of Modern Optics, 2019
In this paper, coherent Rydberg excitation of a single four-level atom in tightly confining trap so-called ‘far-off-resonance optical dipole-quadrupole trap’ (FORDQT) by considering Laguerre Gaussi...
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Resonant and weakly-bound one-particle levels in quadrupole-deformed potentials

The European Physical Journal Special Topics, 2007
Both positive-energy and weakly-bound one-particle levels for neutrons in Y20 deformed Woods-Saxon potentials are examined in comparison with those in spherical Woods-Saxon potentials. While s1/2 levels play a unique role in spherical drip-line nuclei, the Ωπ = 1/2+ levels in Y20 deformed potentials, which always contain some amount of s1/2 ...
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Positive-energy one-particle levels in quadrupole-deformed Woods-Saxon potentials

Physical Review C, 2006
Positive-energy one-particle levels for neutrons in Y20 deformed Woods-Saxon potentials are examined using the eigenphase representation. Taking the example of =1/2+ levels, not only one-particle resonant levels but also all solutions in the eigenphase representation within a model space are studied.
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Correlation of Nuclear Quadrupole Interaction Frequencies with Polarographic Half-Wave Potentials

Nature, 1956
WHEN the nuclear quadrupole interaction frequencies of some aryl iodo-compounds are plotted against the corresponding half-wave potentials of these compounds at pH 7 (Fig. 1) a general linear trend is obvious; but the departure from linearity in the case of the iodoanilines is more serious (points not shown on graph).
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