Results 141 to 150 of about 114,281 (199)

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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Quadrupole transitions revealed by Borrmann spectroscopy

Nature, 2008
The Borrmann effect-a dramatic increase in transparency to X-ray beams-is observed when X-rays satisfying Bragg's law diffract through a perfect crystal. The minimization of absorption seen in the Borrmann effect has been explained by noting that the electric field of the X-ray beam approaches zero amplitude at the crystal planes, thus avoiding the ...
Robert F, Pettifer, Stephen P, Collins, David, Laundy   +2 more
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Electric quadrupole transitions

Canadian Journal of Physics, 1991
A data set has been compiled consisting of 101 E2 strengths observed in neutron radiative capture. The E2 strength function is found to be consistent with a fifth power energy dependence and mass dependence characterized by a power of n = 1.87 ± 0.07.
W. V. Prestwich, M. A. Islam, T. J. Kennett   +2 more
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Quenching of spin-flip quadrupole transitions

Physical Review C, 1985
An increasing amount of experimental data indicates that spin-flip quadrupole transitions exhibit quenching effects similar to those reported earlier in (p,n) reactions involving l = 0 and l = 1 transitions. We present here two model calculations suggesting that the E2 spin-flip transitions are more affected than their M1 and M3 counterparts by the ...
, Castel, , Blunden, , Okuhara
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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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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

Hysteresis-like phase transitions in quadrupole traps

Modern Physics Letters A, 2022
In this paper, we consider the Coulomb crystals in linear ion trap with a nonlinear dissipative force induced by optical radiation. We discuss a relation between 2D and 3D ion crystals formation and the crystalline units’ initial conditions. A phase diagram of the Coulomb crystal configurations is constructed.
Semyon Rudyi, Anna Romanova, Yuri Rozhdestvensky, Vadim Rybin   +3 more
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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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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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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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