Highly deformed intruder bands in the A≈130 mass region

Wyss, R.; Nyberg, J.; Johnson, A.; Bengtsson, R.; Nazarewicz, W.

doi:10.1016/0370-2693(88)91422-0

Cited by 314 publications

(106 citation statements)

References 12 publications

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“…Cranked shell model (CSM) calculations were performed in order to interpret the rotational behavior observed in 117 Ba. The deformation parameters (β 2 , β 4 , γ) were determined in total Routhian surface calculations [42,43] and then used as input for CSM calculations [44] from which theoretical quasiparticle alignment frequencies can be extracted to be compared with the experimental values. The total Routhian has well-defined parity and signature, but no other quantum numbers are conserved.…”

Section: Inmentioning

confidence: 99%

First identification of excited states in Ba117 using the recoil- β -delayed proton tagging technique

et al. 2017

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Excited states have been observed for the first time in the neutron-deficient nucleus 117 Ba using the Recoil-Decay Tagging technique following the heavy-ion fusion-evaporation reaction 64 Zn( 58 Ni, 2p3n)117 Ba. Prompt γ rays have been assigned to 117 Ba through correlations with β-delayed protons following the decay of A = 117 recoils. Through the analysis of the γ-γ coincidence relationships, a high-spin level scheme consisting of two bands has been established in 117 Ba. Based on the systematics of the level spacings in the neighboring barium isotopes, the two bands are proposed to have νh 11/2 [532]5/2 − and νd 5/2 [413]5/2 + configurations, respectively. The observed band-crossing properties are interpreted in the framework of cranked shell model.

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Section: Inmentioning

confidence: 99%

First identification of excited states in Ba117 using the recoil- β -delayed proton tagging technique

et al. 2017

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“…Figure 5(a) presents the Fig. 5 here calculated quadrupole deformation parameters β 2 for the odd-odd cesium isotopes with 55 ≤ N ≤ 71 (110 ≤ A ≤ 126), taken from the macroscopic-microscopic approach of Möller, Nix, Myers, and Swiatecki [2], from the total-Routhiansurface (TRS) method [34,35], and from a Hartree-Fock-Bogolyubov (HFB) self-consistent mean-field approach [36]. All of these calculations reveal that the cesium isotopes with 112 ≤ A ≤ 126 are expected to have sizable groundstate quadrupole deformations.…”

Section: B Excitation-energy Systematics and Deformationsmentioning

confidence: 99%

“…TRS calculations [34,35] were performed for all likely configurations of the valence neutron and proton. The deformations for all of the configurations were found to lie within a small range with 0.186 ≤ β 2 ≤ 0.211, 0.033 ≤ β 4 ≤ 0.044, and −2 • ≤ γ ≤ 12 • .…”

Section: Aligned Angular Momentamentioning

confidence: 99%

γ-ray spectroscopy of the odd-oddN=Z+2deformed proton emitter112Cs

et al. 2012

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“…[40][41][42][43]. In essence, for a given number of quasiparticles with specific parity (π) and signature (α), the total Routhian of the nucleus is minimized with respect to the deformation parameters β 2 , β 4 , and γ, at specified steps in rotational frequency, resulting in a "total Routhian surface" for that frequency.…”

Section: A Total Routhian Surface Calculationsmentioning

confidence: 99%

“…In the calculations, the pairing strength was calculated at zero frequency, and decreased with increasing rotational frequency so that it reached 50% of its original value at 0.7 MeV/h [42]. The TRS calculations (Table III) Table III.…”

Section: B Cranked Woods-saxon Calculationsmentioning

confidence: 99%