Long-range molecular interaction coefficients computed from frost-model wave functions

1976 ◽  
Vol 42 (3) ◽  
pp. 247-260 ◽  
Author(s):  
A. Terry Amos ◽  
Jonathan A. Yoffe
Keyword(s):  
Long Range ◽  
Molecular Interaction ◽  
Wave Functions ◽  
Interaction Coefficients ◽  
Model Wave ◽  
Frost Model

A point-charge representation of frost-model wave functions

1975 ◽  
Vol 40 (3) ◽  
pp. 221-230 ◽  
Author(s):  
A. Terry Amos ◽  
Jonathan A. Yoffe
Keyword(s):  
Point Charge ◽  
Wave Functions ◽  
Model Wave ◽  
Frost Model

scholarly journals Long-range interaction coefficients for ytterbium dimers

2014 ◽  
Vol 89 (1) ◽  
Author(s):  
S. G. Porsev ◽  
M. S. Safronova ◽  
A. Derevianko ◽  
Charles W. Clark
Keyword(s):  
Long Range ◽  
Interaction Coefficients ◽  
Range Interaction ◽  
Long Range Interaction

scholarly journals Be7(p,γ)B8Sfactor fromab initiono-core shell model wave functions

2006 ◽  
Vol 73 (6) ◽  
Author(s):  
P. Navrátil ◽  
C. A. Bertulani ◽  
E. Caurier
Keyword(s):  
Shell Model ◽  
Wave Functions ◽  
Core Shell ◽  
Model Wave

The analysis of the chemisorption bond from uncorrelated and correlated cluster model wave functions

1994 ◽  
Vol 100 (3) ◽  
pp. 1988-1994 ◽  
Author(s):  
J. M. Ricart ◽  
A. Clotet ◽  
F. Illas ◽  
J. Rubio
Keyword(s):  
Cluster Model ◽  
Wave Functions ◽  
Model Wave ◽  
Chemisorption Bond

LONG RANGE FORCES BETWEEN HYDROGEN MOLECULES

1955 ◽  
Vol 33 (11) ◽  
pp. 668-678 ◽  
Author(s):  
F. R. Britton ◽  
D. T. W. Bean
Keyword(s):  
Wave Function ◽  
Long Range ◽  
Ground State ◽  
Close Agreement ◽  
Van Der Waals ◽  
Wave Functions ◽  
Numerical Factor ◽  
Hydrogen Molecules ◽  
Static Quadrupole

Long range forces between two hydrogen molecules are calculated by using methods developed by Massey and Buckingham. Several terms omitted by them and a corrected numerical factor greatly change results for the van der Waals energy but do not affect their results for the static quadrupole–quadrupole energy. By using seven approximate ground state H2 wave functions information is obtained regarding the dependence of the van der Waals energy on the choice of wave function. The value of this energy averaged over all orientations of the molecular axes is found to be approximately −11.0 R−6 atomic units, a result in close agreement with semiempirical values.

Test of new shell model wave functions by means of 166 MeV alpha particle inelastic scattering

1974 ◽  
Vol 49 (5) ◽  
pp. 443-446 ◽  
Author(s):  
L. Bimbot ◽  
I. Brissaud ◽  
Y. Le Bornec ◽  
B. Tatischeff ◽  
N. Willis ◽  
...  
Keyword(s):  
Inelastic Scattering ◽  
Shell Model ◽  
Alpha Particle ◽  
Wave Functions ◽  
Model Wave

Gamow–Teller strength functions from scattering experiments

1987 ◽  
Vol 65 (6) ◽  
pp. 691-698 ◽  
Author(s):  
O. Häusser
Keyword(s):  
Shell Model ◽  
Cross Sections ◽  
Mean Field ◽  
Wave Functions ◽  
Structure Information ◽  
Model Wave ◽  
Spin Flip ◽  
Strength Functions ◽  
Gamow Teller ◽  
Good Agreement

We present here recent [Formula: see text] results from TRIUMF that are relevant to the determination of spin-flip isovector strength functions in nuclei. Distortion factors needed for the extraction of nuclear-structure information have been deduced from cross sections and analyzing powers in elastic scattering for several energies and targets. Nonrelativistic optical potentials obtained by folding effective nucleon (N)–nucleus interactions with nuclear densities are found to overpredict both elastic and reaction cross sections, whereas Dirac calculations that include Pauli blocking are in good agreement with the data. Spin observables (Snn and Ay) for the quasi-elastic region in 54Fe[Formula: see text] at 290 MeV provide some evidence for the reduction of the effective proton mass predicted in relativistic mean-field theories as a consequence of the attractive scalar field in the nuclear medium. The energy dependence of the effective N–nucleus interaction at small momentum transfers has been investigated using isoscalar and isovector 1+ states in 28Si as probe states. We find that the cross sections for the isovector transitions are in good agreement with predictions for the dominant Vστ part of the Franey–Love interaction. Gamow–Teller (GT) strength functions have been obtained in 24Mg and 54Fe from measurements of both cross sections and spin–flip probabilities Snn. The spin-flip cross sections σSnn are particularly useful in heavier nuclei to discriminate against a continuous background of ΔS = 0 excitations. In the (s, d) shell where full shell-model wave functions are available, the GT quenching factors [Formula: see text] are in good agreement with those from recent (p, n) and (n, p) experiments. We show that a state-by-state comparison of (p, p′) and (e, e′) results has the potential of identifying pionic current contributions in (e, e′). The GT quenching factors in 54Fe are smaller than in the (s, d) shell probably because of severely truncated shell-model wave functions, particularly those of the nuclear ground state.

On the collective model wave functions

1959 ◽  
Vol 14 (5) ◽  
pp. 1174-1176 ◽  
Author(s):  
Z. Jankovic
Keyword(s):  
Collective Model ◽  
Wave Functions ◽  
Model Wave

Multifractality–Monofractality Phase Transition in the Anderson Model

1998 ◽  
Vol 12 (22) ◽  
pp. 921-927
Author(s):  
A. Bershadskii
Keyword(s):  
Phase Transition ◽  
Numerical Simulations ◽  
Specific Heat ◽  
Long Range ◽  
Anderson Model ◽  
Wave Functions ◽  
Bernoulli Distribution ◽  
Dipole Interactions

It is shown that statistics of multifractality–monofractality phase transition is described by a generalization of the Bernoulli distribution (multifractal Bernoulli distribution). It is also shown that this distribution is observed in numerical simulations of multifractal wave functions which use the Anderson model, both for short- and long-range disorder. In the last case (corresponding to the dipole interactions) the multifractal specific heat of the most eigenstates — c ≃ d/3, where d is dimension of the space.

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