High-spin states in the isotones 89Zr, 91Mo and 93Ru populated in α-particle-induced reactions

High spin states ofMo91andNbSingh1, Pillay2, Sheikh3 et al. 1993Phys. Rev. C21250View full textAdd to dashboardCite

“…5. The identification as we11 as the spin-parity assignment of the states 9/2+, 13/2, 17/2+, 21/2+, 23/2+, 25/2+, 25/2, and 27/2 are found to be consistent with the published data [10]. However, the y rays with energies 284.5 and 616.9 keV decaying through states 29/2 and 31/2, as shown in Ref.…”

“…Thus, with the earlier assignment of 29/2 and 31/2 states as presented in Ref. [10], there is no possible placement consistent with the 340 keV y ray in that leve1 scheme. In addition to the (1) 1.66 (2) 0.98 (7) 1.53 (2) 0.73 (4) 1.54(2) 1.64(2) 1.52 (3) 1.76 (2) 0.75 (3) 1.32 (2) above findings, seven new states decaying through eight y rays have been established from our experimental results ( Fig.…”

“…The reason could be that the intensities of these two lines as observed in Ref. [10] were low and both the lines appeared to be essentially of similar intensity. On the other hand, with our experirnental results, we have placed them in the level scheme with confidence because of two reasons.…”

“…However, the y rays with energies 284.5 and 616.9 keV decaying through states 29/2 and 31/2, as shown in Ref. [10], were found to be wrongly placed. The reason could be that the intensities of these two lines as observed in Ref.…”

Multiplet structure and core-related effects on transition rates in87Y and neighbouringA? 90 nuclei

“…Seniority-three 21/2 + isomers were earlier observed in neighbouring nuclei with N = 50 [6], N = 49 [7][8][9] and N=48 [10]. It seems to be of interest to extend this systematics also to 87y.…”