Results 211 to 220 of about 30,007 (261)

Transitional quadrupole moments in83Y

Zeitschrift f�r Physik A Hadrons and Nuclei, 1994
Doppler shift attenuation lifetime measurements have been carried out for the 3qp and isomeric rotational bands in Y-83 using the reaction (Ni(Si,3p))-Ni-58-Si-28. While the transitional quadrupole moments in the 3qp bands are slightly lower than in the 1 qp bands, we found evidence for a strong reduction in \Q(t)\ for the isomeric band.
T. D. Johnson, F. Cristancho, C. J. Gross, M. Kabadiyski, K. P. Lieb, D. Rudolph, M. Weiszflog, T. Burkardt, J. Eberth, S. Skoda   +9 more
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Electric quadrupole transitions in 42Ca

Nuclear Physics A, 1969
Abstract From Doppler shift attenuation and delayed coincidence measurements, lifetimes have been determined for states in 42 Ca as follows: The measured electric quadrupole transitions were compared with the predictions of the shell model, the weak-coupling model and the Gerace-Green calculations.
R. Hartmann, K.P. Lieb, H. Röpke
openaire   +1 more source

Screening Doublets in X-ray Quadrupole and Non-quadrupole Transitions

Proceedings of the Physical Society, 1963
A close examination of recent data on the x-ray quadrupole and non-quadrupole transitions reveals, for the first time, five pairs of lines, namely (LIMI, LIIMII), (LINI, LIINII), (LIOI, LIIOII), (LIIOIII, LIOIV,V) and (LIMI, LIMII), which form screening doublets.
G B Deodhar, B D Padalia
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Superallowed electric-quadrupole transitions of ions in crystals

Physical Review Letters, 1989
La reponse collective a plusieurs electrons d'un cristal hote au champ electrique d'un photon peut augmenter la force d'oscillateur pour une transition quadripolaire de l'ion.
, Lacueva, , Overhauser
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Sum rules for electric quadrupole transitions

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1974
Abstract Sum rules for matrix elements occurring in calculations of electric quadrupole radiation have been derived and tested for the helium and sodium isoelectronic sequences, using frozencore atomic wavefunctions. Electric quadrupole polarizabilities have been calculated for the metastable 2 1S and 2 3S states of He, Li+, Be2+ and ...
D. Rosenthal, R. P. McEachran, M. Cohen
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The quadrupole transition LM (β9) in 65terbium

Chemical Physics Letters, 1968
Abstract Using a 40−cm curved mica crystal spectrograph of the transmission type, a new diagram line at λ = 1656.41 XU corresponding to the quadrupole transition L I M V (β 9 ) in terbium has been reported for the first time.
A.N. Nigam, K.B. Garg
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Conversion coefficients for electric quadrupole transitions

Nuclear Physics, 1958
The measured K and L shell conversion coefficients of the 412 kev transition in Hg/sup 198/ / and the 279 kev transition in Tl/sup 203/ are compared with the results of calculations by Rose and by Sliv and Enrd which are corrected for effects due to the finite nuclear size.
G.J. Nijgh, A.H. Wapstra
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Quadrupole Phase Transitions in Magnetic Solids

Physical Review Letters, 1971
We have studied the phase transitions of magnetic systems with large biquadratic interactions in the molecular-field approximation. Quadrupole and dipole phase transitions occur at different temperatures whenever the biquadratic interactions are greater than the bilinear terms for effective spin interactions with $\mathcal{S}g~\frac{3}{2}$.
H. H. Chen, Peter M. Levy
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Double transitions in deuterium quadrupole resonance

Journal of Magnetic Resonance (1969), 1978
Abstract The new double nuclear resonance techniques enable the detection of the nuclear quadrupole resonance of the deuteron with very high sensitivity in powdered solids. One consequence is that it is possible to detect double transition quadrupole resonance (DTQR) in which two adjacent deuterons make simultaneous transitions absorbing a single ...
D.T Edmonds, A.A.L White
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Magnetic quadrupole transitions in optical radiation

Journal of Quantitative Spectroscopy and Radiative Transfer, 1965
Abstract The rates of two mechanisms for intercombination transitions in light atoms are compared for visible and near-ultraviolet light, following a suggestion of Mizushima. Even for small Z, spin-orbit electric dipole radiation dominates over magnetic quadropole radiation in determining the radiative lifetime, although in a sense these processes ...
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