Quadrupole-quadrupole interaction calculations which includeN=2mixing
نویسندگان
چکیده
منابع مشابه
Quadrupole - 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...
متن کاملConcerning the Quadrupole - Quadrupole Interaction
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 Isovector Quadrupole - Quadrupole Interaction Used in Shell Model Calculations with ∆ N = 2 Excitations
The effect of the " B " term in the interaction −χQ · Q(1 + B τ (1) · τ (2)), which was previously considered in the 0p shell, is now studied in a larger space which includes ∆N = 2 excitations. We still get a collapse of low-lying states below the conventional J = 0 + ground state when B is made sufficiently negative.
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 1997
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.55.2389