Signature inversion phenomena in odd-odd 182Au

Decay studies of the long-lived states in Tl186

“…The 202-keV transition was not included because it is unplaced in the decay scheme while the 141-and 144-keV transitions were not included to avoid double counting of the α particles since they feed the 129-keV level. Furthermore, the 104-keV transition was not used for gating, because it may also originate from the decay of the (7 + ) state in 182 Au [25]. To account for this feeding, the α-energy spectrum gated on the 129-keV transition was corrected by the total intensity of the 104-keV transition, 32(3)%, from the 182 Hg β-decay studies [22].…”

“…In-beam studies [25] revealed the existence of two bands in 182 Au built on top of isomeric states with proposed spins and parities of (6 + ) and (10 − ). Thus, it cannot be excluded that the 10 (−) state in 186 Tl is α decaying directly to the (10 − ) isomer in 182 Au, without emission of a γ ray.…”

Decay studies of the long-lived states in $^{186}$Tl

“…The 202 keV transition was not included because it is unplaced in the decay scheme while the 141 keV and 144 keV transitions were not included to avoid double counting of the α particles since they feed the 129 keV level. Furthermore, the 104 keV transition was not used for gating, because it may also originate from the decay of the (7 + ) state in 182 Au [25]. To account for this feeding, the α energy spectrum gated on the 129 keV transition was corrected by the total intensity of the 104 keV transition, 32(3)%, from the 182 Hg β-decay studies [22].…”

Low-spin signature inversion in theπh9/2⊗νi13/2oblate band ofXie1, Zhou2, Zhang3 et al. 2005Phys. Rev. C11070View full textAdd to dashboardCite

“…As is well known, low-spin signature inversion in doubly odd nuclei was identified experimentally mainly by observing the change of the staggering phase at medium angular momentum [2,[4][5][6][7][8][9][10]. For the πh 9/2 ⊗ νi 13/2 oblate configuration, the interplay between the Coriolis and p-n residual interactions, which favor the odd and even spins, respectively, is expected to produce at a given spin (inversion point) a mutual cancellation of the opposite contributions to the staggering.…”

“…Low-spin signature inversion has been systematically observed in deformed odd-odd nuclei throughout the chart of nuclides (see Refs. [2,[4][5][6][7][8][9][10], and references therein), related to the high-j πg 9/2 ⊗ νg 9/2 , πh 11/2 ⊗ νh 11/2 , πh 11/2 ⊗ νi 13/2 , πh 9/2 ⊗ νi 13/2 , and πi 13/2 ⊗ νi 13/2 configurations. Great theoretical efforts have been devoted to the understanding of low-spin signature inversion in deformed odd-odd nuclei.…”