High-angular-momentum states inAg106and their rotational interpretation

p-n Multiplets and band-like structures in106Ag

“…The half-life limit for the 765.2 keV level (<0.2 ns) is by three orders of magnitude lower than the model prediction of 200 ns made in [1]. In the model applied there, weakly deformed Nilsson orbitals arising from the ~g9/2 and vh~/2 configurations were included to form the negative-parity band starting at 765.2 keV with J~ = 6- (Fig.…”

“…One of the best studied examples of this type is l~ (Z = 47). It has been investigated in (HI, x n) reactions populating preferably states of higher spin [1], as well as in several light-particle induced reactions revealing a wealth of low-spin excitations (cf. [2] and references therein).…”

“…level lifetimes were made in [1] with the corresponding experimental data being not available so far. Especially, a long half-life (200 ns) was predicted for the 6-level at 765.2 keV acting as the lowest member of a band-like structure observed up to J~= 13-and (14)-.…”

Yrast states in the doubly-odd nucleus100Tc

“…Owing to the uncertainties of the single-particle level scheme, we have used in the calculations the simple proton-neutron interaction of formula (4), where the shortrange force is simulated by a spin-spin surface delta interaction and the long-range force by a quadrupole-quadrupole interaction. It is worth mentioning that quadrupolequadrupole and spin-spin delta interactions were also [16], in order to reproduce the experimental spectrum of l~ while an even simpler surface delta interaction was used in ref.…”

“…99Ru, t~ [1,2] ) show AJ = 2 collective structures built on the lowest ~-state, Furthermore in the doublyodd silver [3,4] and rhodium [5][6][7] isotopes (with N = 55, 57, 59), negative parity bands with AJ = 1 have been observed, which have been interpreted with the coupling of a h11/2 neutron to a g9/2 proton. The bandhead, in all these nuclei, seems to be a J~ = 8-state with an excitation energy decreasing with the neutron number N for each series of isotopes.…”