Now showing items 11-20 of 30
Detour transitions in internal bremsstrahlung
(Elsevier, 1969-09-08)
The contribution of so-called detour transitions to the internal bremsstrahlung accompanying nuclear beta decay is calculated. These are transitions in which the nucleus rather than the electrons radiates the photon. It ...
The quartic isobaric multiplet mass equation
(Elsevier, 1969-05-05)
The quadratic isobaric multiplet mass equation must be replaced by an expression which is quartic in Tz if the electrostatic interaction is treated in second-order perturbation theory. The coefficients of the cubic and ...
The Ca40(d, [alpha])K38 reaction and the nuclear structure of K38
(Elsevier, 1963)
Natural Ca-targets were bombarbarded with 7.7 MeV deutereons. Magnetic analysis was used to obtain [alpha]-particle spectra at angles of 50[deg], 70[deg] and 90[deg]. About 35 levels in K38 were found up to an excitation ...
Mixed crystal infrared study of chain folding in crystalline polyethylene
(John Wiley & Sons, Inc., 1969-10)
Infrared spectroscopic studies have been made of mixed crystals of linear polyethylene and perdeuteropolyethylene. On the basis of normal vibration analyses by Tasumi and Krimm it had been shown that the study of crystal ...
Infrared evidence for solid state constraints on chain conformation in poly(vinyl chloride)
(John Wiley & Sons, Inc., 1965-04)
No Abstract.
Simple shell-model expressions for coulomb energies
(Elsevier, 1968-06-24)
It is shown that the main n-T dependent terms of the Coulomb energy have the same general form in the Wigner supermultiplet scheme as in the low seniority limit of the j-j coupling scheme of the shell model.
Five-dimensional quasi-spin the n, T dependence of shell-model matrix elements in the seniority scheme
(Elsevier, 1967-09-29)
The five-dimensional quasi-spin formalism is used to factor out the n, T dependent parts of shell-model matrix elements in the seniority scheme and derive reduction formulae which make it possible to express matrix elements ...
Generalized seniority for favored J [not equal to] 0 pairs in mixed configurations
(Elsevier, 1969-11-03)
By assigning a pseudo-spin and pseudo-orbital angular momentum (b-spin and c-spin) to the single-particle states in a mixed configuration of identical nucleons, it is possible to classify as B = 0 objects both the favored ...
The lowest T = 0 states in the odd N = Z nuclei with A > 40
(Elsevier, 1962)
There is indication that the lowest T = 0 and T = 1 states are inverted not only in Cl34 but also in Sc42, V46, Mn50 and Co54. Isomerism in all these nuclei is likely.
SU3 recoupling and fractional parentage in the 2s-1d shell
(Elsevier, 1965-02)
Explicit algebraic expressions have been calculated for both the SU3 Wigner coefficients and the SU3 Racah coefficients which are of particular interest in the recoupling problem involving 2s-1d shell nucleons and basis ...