Evidence for intruder states in111Rh

Abstract

Levels in 111Rh have been investigated via the v-rays following the ft--decay of 2.1 s llXRu. The Ru ac-

Penning-trap-assisted study of 115Ru beta decay

“…The same spin-inversion pattern remains up to higher spins [19]. The same K = 1/2 intruder band has been seen also in silver [42] and technetium isotopes [43]. To study the properties of this band in 115 Rh, we have used the notion of Bohr and Mottelson [44]: Since we have tentative candidates for three low-energy levels of this band, their energies can be used to calculate the coefficients A and A 1 .…”

“…The intruder levels exhibit a clear V shape with a minimum at N = 64 (A = 109) instead of N = 66 as already noted in refs. [41,42] deformation. The up-sloping trend seems to continue at A = 115.…”

Structure of115Ag studied byβ−decays of115Pd andRissanen1, Kurpeta2, Elomaa3 et al. 2012Phys. Rev. C

“…6 and 8. The spins of the lowest energy levels in the deformed bands based on the 1/2 + [431] and 7/2 + [413] Nilsson states have already been established by earlier works [3,16] and the spins of the lowest (3/2 − ) and (5/2 − ) levels have been suggested by Refs. [14,15,27].…”

“…The lowest states populated by the beta decay of the 115 Pd ground state have been published in conference proceedings [14,15]. Also a partial beta-decay scheme concentrating on a band structure built on the π 1/2 + [431] Nilsson configuration [16] and some additional levels fed by the beta decay of 115 Pd [5] have been reported. The beta-decay scheme of the isomeric state in 115 Pd is practically unknown; only one excited state fed by the beta decay has been observed [8].…”

Gamma Rays of Short-lived Ruthenium Nuclides Produced in the Spontaneous Fission of 252Cf

“…There may be an interference by the strong 381-keV y-ray from 136 I (half-life 46 s)[30] which could be an impurity in the organic phase. Recently, evidence for intruder states in ni Rh has been obtained by Rogowski et al[29].…”