Level structure of 120Cs

Moon, C.-B.; Chae, Soryong; Ha, J. H.; Komatsubara, T.; Sasaki, Y.; Jumatsu, T.; Yamada, K.; Satou, K.; Furuno, K.

doi:10.1016/s0375-9474(01)01118-6

Cited by 10 publications

(7 citation statements)

References 21 publications

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“…Clearly, a smooth trend is observed, which continues for 116 Cs, given the spin assignments on the level scheme. The measurements by Moon et al [13,15] suggest that the spins for 120,122 Cs are 2h higher than those given in Fig. 6.…”

Section: B Spin Assignmentsmentioning

confidence: 71%

“…Prior to the present work, signature-inversion frequencies had been identified in the ν(h 11/2 ) ⊗ π (h 11/2 ) bands of the Z = 55 118−126 Cs isotopes [11][12][13][14][15][16][17][18]; the most neutron-deficient odd-odd cesium isotope in which excited states had been observed was 118 Cs 63 [12]. It is expected that the np interaction will increase in significance when approaching N = Z, so it is important that the more neutron-deficient isotopes be studied, in order to set apart the different theoretical interpretations.…”

Section: Introductionmentioning

confidence: 92%

“…Over the range 118 A 132, the spins of these bands have been unambiguously measured in five cases: 120 Cs [13]; 122 Cs [15]; 124 Cs [16]; 130 Cs [26]; and 132 Cs [27]. Systematic spin assignments have also been made for these isotopes in Refs.…”

Section: B Spin Assignmentsmentioning

confidence: 99%

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Excited states and signature inversion inCs116

et al. 2006

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Excited states have been observed for the first time in the very neutron-deficient, odd-odd nucleus, 116 55 Cs 61 . The assignment to 116 Cs has been made by the detection of γ rays in coincidence with evaporated charged particles and with evaporation residues. The observed states form a rotational band which has been assigned to the ν(h 11/2 ) ⊗ π (h 11/2 ) configuration. Tentative spin assignments have been made on the basis of systematic comparisons with neighboring cesium isotopes. A low-spin signature inversion is observed in the band at a rotational frequency of about 0.23 MeV/h. The observed signature inversions in the odd-odd 116−126 Cs isotopes have been compared with the results of extended total Routhian surface calculations, in which signature inversion arises as a consequence of quadrupole-pairing correlations and triaxial deformation. As previously shown for some of the odd-odd A 120 isotopes, the calculations reproduce the signature inversions reasonably well.

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Section: B Spin Assignmentsmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 92%

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Excited states and signature inversion inCs116

et al. 2006

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“…This is presumably due to the low detection efficiency for low-energy transitions with the apparatus used [20][21][22]. In 120 Cs, decay of the 10 + yrast band-head proceeds to the ground state by multiple low-energy, low-intensity transitions which were observed through the use of low-energy photon (LEPS) detectors [18]. It is possible that a similar arrangement of low-energy, low-intensity transitions will connect the states shown in Fig.…”

Section: A Level Schemementioning

confidence: 99%

“…Below A = 118, the production cross sections, and consequently the quality of experimental data available for each nucleus, reduce with decreasing neutron number. Thus, in odd-odd 118,120 Cs (N = 63, 65), multiple high-spin two-quasiparticle rotational bands have been identified [3,[17][18][19][20]. For 116 Cs (N = 61), just one rotational band has been observed, assumed to be built on the yrast ν(h 11/2 ) ⊗ π(h 11/2 ) configuration [21].…”

mentioning

confidence: 99%