Quasiparticle alignment in the most deformed krypton isotope<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Kr</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>74</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>

Sl, Tabor; Cottle, P. D.; Jw, Holcomb; Td, Johnson; Pc, Womble; Sg, Buccino; Fe, Durham

doi:10.1103/physrevc.41.2658

Cited by 38 publications

(14 citation statements)

References 23 publications

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“…The results, also given in Table IX, show a strong deviation from the values reported in Ref. [26,27]. Especially the lifetime of the 4 + 1 state is found to be significantly shorter than previously reported.…”

Section: Matrix Elements For 74 Krcontrasting

confidence: 41%

“…The fact that the γ -ray yields cannot be reproduced simultaneously for both transitions shows that the Coulomb excitation data are not compatible with the lifetimes reported in Ref. [26,27].…”

Section: Matrix Elements For 74 Krmentioning

confidence: 58%

“…The decay of the 0 + 2 state represents a special case because the E0 branch to the ground state proceeds exclusively via conversion electrons and the E2 branch to the 2 + 1 state has very low energy and is consequently also highly converted. Even though the Coulomb excitation experiment was not sensitive to conversion electrons, the decay of this state with its branching ratio and partial lifetimes [7] states using the recoil-distance method [26,27], and using the Doppler-shift attenuation method for the higher-lying states of the ground-state band [26,28,29]. The lifetime of the isomeric 0 + 2 state was established in a conversion-electron measurement [7].…”

Section: Matrix Elements For 74 Krmentioning

confidence: 99%

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Shape coexistence in neutron-deficient krypton isotopes

Clément¹,

Görgen²,

Körten³

et al. 2007

Phys. Rev. C

175

145

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Shape coexistence in the light krypton isotopes was studied in two low-energy Coulomb excitation experiments using radioactive 74 Kr and 76 Kr beams from the SPIRAL facility at GANIL. The ground-state bands in both isotopes were populated up to the 8 + state via multi-step Coulomb excitation, and several non-yrast states were observed. Large sets of matrix elements were extracted for both nuclei from the observed γ -ray yields. Diagonal matrix elements were determined by utilizing the reorientation effect. In both isotopes the spectroscopic quadrupole moments for the ground-state bands and the bands based on excited 0 + 2 states are found to have opposite signs. The experimental data are interpreted within a phenomenological two-band mixing model and model-independent quadrupole invariants are deduced for the relevant 0 + states using the complete sets of matrix elements and the formalism of quadrupole sum rules. Configuration mixing calculations based on triaxial Hartree-Fock-Bogolyubov calculations with the Gogny D1S effective interaction have been performed and are compared both with the experimental results and with recent calculations using the Skyrme SLy6 effective interaction and the full generator-coordinate method restricted to axial shapes.

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Section: Matrix Elements For 74 Krcontrasting

confidence: 41%

Section: Matrix Elements For 74 Krmentioning

confidence: 58%

Section: Matrix Elements For 74 Krmentioning

confidence: 99%

See 1 more Smart Citation

Shape coexistence in neutron-deficient krypton isotopes

Clément¹,

Görgen²,

Körten³

et al. 2007

Phys. Rev. C

175

145

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show abstract

“…Fig. 1 [34] before evaluation [35]. Adopting this value and β 2 ∼ 0.32 for the 0 + 2 state of 74 Kr, the observed monopole strength ρ 2 (E0) could be well reproduced [7].…”

Section: Resultsmentioning

confidence: 92%

Shape coexistence and evolution in neutron-deficient krypton isotopes

Bai

Jiao

et al. 2015

Chinese Phys. C

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Total Routhian Surface (TRS) calculations have been performed to investigate shape coexistence and evolution in neutron-deficient krypton isotopes 72,74,76 Kr. The ground-state shape is found to change from oblate in 72 Kr to prolate in 74,76 Kr, in agreement with experimental data. Quadrupole deformations of the ground states and coexisting 0 + 2 states as well as excitation energies of the latter are also well reproduced. While the general agreement between calculated moments of inertia and those deduced from observed spectra confirms the prolate nature of the low-lying yrast states of all three isotopes (except the ground state of 72 Kr), the deviation at low spins suggests significant shape mixing. The role of triaxiality in describing shape coexistence and evolution in these nuclei is finally discussed.

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“…For example, the light Kr isotopes like ¾ Kr [14,15] show almost simultaneous alignment [19] suggest oblate deformation at low spins and a triaxial shape at higher spins´Á ½¾ · µ.…”

Section: Band Crossings In Krmentioning

confidence: 97%

Nuclear structure and Indian Clover array

Jain

2001

Pramana - J Phys

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A brief description of the nuclear structure studies performed with the 14-UD pelletron at TIFR has been presented. The experimental facilities developed for these studies are described. Some of the interesting results obtained for mass 70 to 80 nuclei are presented. The development of a recoil mass spectrometer and an Indian clover array for the study of high spin states in nuclei near drip lines is discussed.

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Quasiparticle alignment in the most deformed krypton isotopeKr74

Cited by 38 publications

References 23 publications

Shape coexistence in neutron-deficient krypton isotopes

Shape coexistence in neutron-deficient krypton isotopes

Shape coexistence and evolution in neutron-deficient krypton isotopes

Nuclear structure and Indian Clover array

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