High-resolution<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>α</mml:mi></mml:math>and electron spectroscopy of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Cf</mml:mi><mml:mprescripts /><mml:mn>98</mml:mn><mml:mn>249</mml:mn></mml:mmultiscripts></mml:math>

Ahmad, I.; Greene, J. P.; Kondev, F. G.; Zhu, S.

doi:10.1103/physrevc.91.044310

Cited by 9 publications

(4 citation statements)

References 23 publications

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“…One can see that the largest deviation from the experimental data emerges at the transition from 9/2 − to 17/2 − by about one order of magnitude. But the recent high-resolution experiment [45] suggests the b.r. as 82.4(3)%, 4.68(7)%, 0.29(1)%, 0.022(1)%, and 0.0022(3)%.…”

Section: Double Folding Interaction and The Wildermuth Rulementioning

confidence: 98%

“…to high-spin states constitute an important and sensitive probe of the structure properties of daughter nuclei. Recently, decay spectroscopy of heavy elements has been established and new high-statistics data have been obtained [40][41][42][43][44][45]. It would be of great interest to measure the α-decay intensity to high-spin states and explore the structure properties such as deformations and energy spectra.…”

Section: Double Folding Interaction and The Wildermuth Rulementioning

confidence: 99%

“…The logic of theoretical investigations followed a path from semiclassical to coupled-channel calculations and from even-even, to odd-mass, and then to odd-odd nuclei. In addition, it should be particularly noted that sufficient knowledge of the α-decay fine structure in heavy nuclei is also helpful for future researches on superheavy nuclei [40][41][42][43][44][45], because α-decay in the superheavy mass region presents a powerful and precise tool to probe nuclear structure properties.…”

Section: Introductionmentioning

confidence: 99%

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Coupled channels description of theα-decay fine structure

Delion

Ren

Dumitrescu

et al. 2018

J. Phys. G: Nucl. Part. Phys.

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We review the coupled channels approach of α transitions to excited states. The α-decaying states are identified as narrow outgoing Gamow resonances in an α-daughter potential. The real part of the eigenvalue corresponds to the Qvalue, while the imaginary part determines the half of the total α-decay width. We first review the calculations describing transitions to rotational states treated by the rigid rotator model, in even-even, odd-mass and odd-odd nuclei. It is found that the semiclassical method overestimates the branching ratios to excited 4 + for some even-even α-emitters and fails in explaining the unexpected inversion of branching ratios of some odd-mass nuclei, while the coupled-channels results show good agreement with the experimental data. Then, we review the coupled channels method for α-transitions to 2 + vibrational and transitional states. We present the results of the Coherent State Model that describes in a unified way the spectra of vibrational, transitional and rotational nuclei. We evidence general features of the α-decay fine structure, namely the linear dependence between α-intensities and excitation energy, the linear correlation between the strength of the α-core interaction and spectroscopic factor, and the inverse correlation between the nuclear collectivity, given by electromagnetic transitions, and α-clustering.

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Section: Double Folding Interaction and The Wildermuth Rulementioning

confidence: 98%

Section: Double Folding Interaction and The Wildermuth Rulementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Coupled channels description of theα-decay fine structure

Delion

Ren

Dumitrescu

et al. 2018

J. Phys. G: Nucl. Part. Phys.

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“…If multiple states are populated, we assume a fast electromagnetic decay to a lower-lying state if an E 1, M1, or E 2 transition is allowed. Note, it is known that low-lying rotational band members built on Nilsson states are populated in α decay [53][54][55][56], but we are not taking this additional complication explicitly into account. The energies of the α decays use the Q α values in Table I, assumed to correspond to the ground-state-to-ground-state transition and account for the excitation energy of the one-quasi-proton states in both parent and daughter.…”

Section: Sedf-unedf1mentioning

confidence: 99%

Role of quasiparticle structure in α decay of superheavy nuclei

Clark

Rudolph

2023

Phys. Rev. C

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We use the superfluid tunneling model (STM) to calculate the half-lives of α decays of odd-A and oddodd superheavy nuclei (SHN) with Z 100 and A 250. The experimental data are reproduced to accuracies comparable to other contemporary models of the α decay of the SHN. We then apply the STM to examine the influence of the quasiparticle structure on the properties of the chains of α decays arising from odd-A SHN. Using representative calculations of the one-quasi-particle structure of odd-Z and odd-N SHN, we illustrate the important role played by high-orbitals in defining the observed characteristics of the α-decay chains. We point out sources of possible ambiguity that may arise due to the quasiparticle structure when assigning α-decay chains to specific SHN.

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The phenomenology of particle and cluster emission

Dumitrescu

Delion

2022

Atomic Data and Nuclear Data Tables

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High-resolutionαand electron spectroscopy ofCf98249

Cited by 9 publications

References 23 publications

Coupled channels description of theα-decay fine structure

Coupled channels description of theα-decay fine structure

Role of quasiparticle structure in α decay of superheavy nuclei

The phenomenology of particle and cluster emission

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