Shadow J. Q. Robinson

Degeneracies when T = 0 two body matrix elements are set equal to zero and Regge’s 6 j symmetry relations

The effects of setting all

Degeneracies when T = 0 two-body interacting matrix elements are set equal to zero: Talmi's method of calculating coefficients of fractional parentage to states forbidden by the Pauli principle

T=0

The love-hate relationship between the shell model and cluster models

two body interaction matrix elements equal to a constant (or zero) in shell model calculations (designated as

Effects of T = 0 two body matrix elements on M 1 and Gamow-Teller transitions: Isospin decomposition

〈T=0〉=0)

Shell model calculations ofB(E2)values, static quadrupole moments, andgfactors for a number ofN=Znuclei

are investigated. Despite the apparent severity of such a procedure, one gets fairly reasonable spectra. We find that using

Isobaric analog states in thef7/2andg9/2shells

〈T=0〉=0

Linear approximation for the excitation energies of single and double analog states in the f{sub 7/2} shell

in single-j shell calculations degeneracies appear, e.g., the

B(E2,4→2)/B(E2,2→0)ratio in even-even nuclei: Apparent anomalous behavior of the chromium isotopes

I={\frac{1}{2}}^{\ensuremath{-}}

Shell-model test of the rotational-model relation between static quadrupole moments Q(2+1), B(E2)'s, and orbital M1 transitions

and

Full major shell calculation for states that were degenerate in a single j-shell calculation

{\frac{13}{2}}^{\ensuremath{-}}