Quadrupole shapes
نویسندگان
چکیده
منابع مشابه
N Quadrupole Interactions in Nitrogen-Containing Ceramics. Effects on Si NMR Line Shapes and Structural Implications*
Simulations of solid-state Si N M R spectra in nitrogen-containing silicon ceramics and glasses are described. The range of SiN ; t04 ._x tetrahedra is covered, with emphasis on the experimental conditions needed to observe the effect of the incompletely averaged Si, 1 4 N dipolar coupling. A simple equation is discussed concerning its use in the interpretation of these Si spectra, including th...
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We address some properties of the quadrupole-quadrupole (Q · Q) interaction in nuclear studies. We first consider how to restore SU (3) symmetry even though we use only coordinate and not momentum terms. Using the Hamil
متن کاملThe Onset of Chaos with a Quadrupole–quadrupole Interaction
The transition from order to chaos in atomic nuclei has been studied analytically and numerically using a quadrupole–quadrupole residual interaction. This interaction leads to chaotic behaviour, but the critical energy E C ≃ 12.6 MeV, corresponding to the onset of chaos, is higher than that of the experimental one.
متن کاملQuadrupole - quadrupole interaction calculations which include N = 2 mixing
We carry out a study of the study of the Q · Q interaction in a model space which consists of several nucleons in an open shell and all 2¯ hω excitations. Xo 2 Q · Q, where for t=1 we get the 'accepted strength'. In the 0p space, the spectrum would scale with t. In this space, the 2 + 1 and 2 + 2 states of 10 Be are degenerate, as are the [330] and [411] sets of J = 0 + , 1 + and 2 + triplets. ...
متن کاملThe Isovector Quadrupole-Quadrupole Interaction Used in Shell Model Calculations
An interaction −χQ ·Q(1+B~τ(1) · ~τ(2)) is used in a shell model calculation for 10Be. Whereas for B = 0 the 21 state is two-fold degenerate, introducing a negative B causes an ‘isovector’ 2+ state to come down to zero energy at B = −0.67 and an S = 1 L = 1 triplet (J = 0+, 1+, 2+) to come down to zero energy at B = −0.73. These are undesirable properties, but a large negative B is apparently n...
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ژورنال
عنوان ژورنال: Physical Review Special Topics - Accelerators and Beams
سال: 2012
ISSN: 1098-4402
DOI: 10.1103/physrevstab.15.074002