Bound states of a uniform spherical charge distribution—revisited!

2000 ◽  
Vol 68 (7) ◽  
pp. 640-648 ◽  
Author(s):  
Brian C. Tiburzi ◽  
Barry R. Holstein
Keyword(s):  
Charge Distribution ◽  
Bound States ◽  
Spherical Charge

scholarly journals Non-spherical proton shape and hydrogen hyperfine splittingThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at University of Windsor, Windsor, Ontario, Canada on 21–26 July 2008.

2009 ◽  
Vol 87 (7) ◽  
pp. 773-783 ◽  
Author(s):  
A. J. Buchmann
Keyword(s):  
Charge Distribution ◽  
Hyperfine Splitting ◽  
Spherical Charge ◽  
Atomic Systems ◽  
Absolute Value ◽  
International Conference

We show that the non-spherical charge distribution of the proton manifests itself in hydrogen hyperfine splitting as an increase (in absolute value) of the proton Zemach radius and polarization contributions.

On the Coulomb scattering by a spherical charge distribution

1960 ◽  
Vol 18 (3) ◽  
pp. 570-579
Author(s):  
L. Favella ◽  
E. Predazzi
Keyword(s):  
Charge Distribution ◽  
Coulomb Scattering ◽  
Spherical Charge

Point charge approximations to a spherical charge distribution: A random walk to high symmetry

1990 ◽  
Vol 67 (12) ◽  
pp. 995 ◽  
Author(s):  
Jeffrey B. Weinrach ◽  
Kay L. Carter ◽  
Dennis W. Bennett ◽  
H. Keith McDowell
Keyword(s):  
Random Walk ◽  
Charge Distribution ◽  
Point Charge ◽  
High Symmetry ◽  
Spherical Charge

A spherical charge distribution in chromium metal

1982 ◽  
Vol 38 (1) ◽  
pp. 103-108 ◽  
Author(s):  
S. Ohba ◽  
Y. Saito ◽  
S. Wakoh
Keyword(s):  
Charge Distribution ◽  
Spherical Charge

Recent Radiative and Collisional Atomic Data of Astrophysical Interest

1988 ◽  
Vol 102 ◽  
pp. 129-132
Author(s):  
K.L. Baluja ◽  
K. Butler ◽  
J. Le Bourlot ◽  
C.J. Zeippen
Keyword(s):  
Mass Production ◽  
Bound States ◽  
Physical Models ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Atomic Data ◽  
Isoelectronic Sequence ◽  
Astrophysical Interest ◽  
Radiative Transitions ◽  
Forbidden Transitions

SummaryUsing sophisticated computer programs and elaborate physical models, accurate radiative and collisional atomic data of astrophysical interest have been or are being calculated. The cases treated include radiative transitions between bound states in the 2p4and 2s2p5configurations of many ions in the oxygen isoelectronic sequence, the photoionisation of the ground state of neutral iron, the electron impact excitation of the fine-structure forbidden transitions within the 3p3ground configuration of CℓIII, Ar IV and K V, and the mass-production of radiative data for ions in the oxygen and fluorine isoelectronic sequences, as part of the international Opacity Project.

Study of charge transfer in FeTi

1983 ◽  
Vol 41 ◽  
pp. 296-297
Author(s):  
J. Taft∅
Keyword(s):  
Charge Transfer ◽  
Charge Distribution ◽  
Electron Scattering ◽  
Periodic System ◽  
Electron Distribution ◽  
Scattering Amplitude ◽  
Transition Elements ◽  
Hartree Fock ◽  
Cscl Structure ◽  
The Right

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.

Charge distribution on dust particles of space plasma

2003 ◽  
Vol 9 (4) ◽  
pp. 67-72 ◽  
Author(s):  
Yu.O. Klymenko ◽  
◽  
О.К. Cheremnykh ◽  
Keyword(s):  
Charge Distribution ◽  
Space Plasma ◽  
Dust Particles
Sign in / Sign up

Export Citation Format

Share Document