Fission barriers of odd-mass nuclei and odd nuclei with 100 ⩽ Z ⩽ 111

Ćwiok, S.; Łojewski, Z.; Pashkevich, V. V.

doi:10.1016/0375-9474(85)90288-x

Cited by 27 publications

(14 citation statements)

References 19 publications

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“…The details of the calculation and some comments on the method of calculating the shell correction for odd-even/odd nuclei are given in [15]. The potential barrier and the fission path valley were obtained by minimizing the deformation energy E(~) in the deformations y and fi4.…”

Section: Methods Of Calculationmentioning

confidence: 99%

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Half lives of heaviest nuclei with Woods-Saxon potential

Łojewski

Baran

1988

Z. Physik A - Atomic Nuclei

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Adapting the realistic single-particle Woods-Saxon potential the half-lives of elements with Z> 104 are estimated. Spontaneous fission, alpha decay and electron capture processes are treated. All even-even, odd-even and odd-odd nuclei are considered. In calculations of spontaneous fission half lives phenomenological mass parameters are applied. The results allow to estimate hindrance factors for odd systems. As compared to calculations with Nilsson model and microscopic mass parameters, present results for spontaneous fission half lives are 3-5 orders of magnitude higher in the case of heaviest nuclei (Z > 107).

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Section: Methods Of Calculationmentioning

confidence: 99%

“…The basis for calculations was the potential energy obtained in paper [15]. The potential energy was calculated by the Strutinsky method [16] and using a realistic Woods-Saxon potential.…”

Section: Introductionmentioning

confidence: 99%

Half lives of heaviest nuclei with Woods-Saxon potential

Łojewski

Baran

1988

Z. Physik A - Atomic Nuclei

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“…The three mean-field potentials usually used are: convoluted Yukawa potential (see Refs. 26 and 44 and reference therein), (Woods-Saxon potential [45][46][47][48][49][50] ), and twocenter shell-model potential. 51,52 All the calculations obtained in this paper are based on the values of the ground state masses.…”

Section: Nuclear Massesmentioning

confidence: 99%

Decay Properties and Stability of Heaviest Elements

Карпов

Zagrebaev

Palenzuela

et al. 2012

Int. J. Mod. Phys. E

121

107

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Decay properties and stability of heaviest nuclei with Z≤132 are studied within the macro-microscopical approach for nuclear ground state masses and phenomenological relations for the half-lives with respect to α-decay, β-decay and spontaneous fission. We found that at existing experimental facilities the synthesis and detection of nuclei with Z>120 produced in fusion reactions may be difficult due to their short half-lives (shorter than 1 μs). The nearest (more neutron-rich) isotopes of superheavy elements with 111≤Z≤115 to those synthesized recently in Dubna in 48 Ca -induced fusion reactions are found to be β+-decaying. This fact may significantly complicate their experimental identification. However it gives a chance to synthesize in fusion reactions the most stable superheavy nuclei located at the center of the island of stability. Our calculations yield that the β-stable isotopes 291 Cn and 293 Cn with a half-life of about 100 years are the longest-living superheavy nuclei located at the island of stability.

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“…Cwiok et al [37] have computed a rather different set of values of the fission barrier heights (and the shell effects deduced from them by subtracting the liquid drop barriers from the calculated fission barriers). These values are tabulated in Table IV (labeled Cwiok) along with the values of n tot calculated from them.…”

Section: Discussionmentioning

confidence: 99%

Direct observation of first-chance fission ofNo258

et al. 2009

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The multiplicities, angular correlations, and energy spectra of the neutrons associated with fission were measured for the reactions of 25,26 Mg + 232 Th at 25 Mg and 26 Mg projectile energies of 132 and 148 MeV, respectively. From these data, we extracted a value of n / f for the first-chance fission of 258 No at an excitation energy of 61 MeV. The implications of this result for understanding the survival probabilities of excited heavy nuclei formed in "hot" fusion reactions are discussed.

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Fission barriers of odd-mass nuclei and odd nuclei with 100 ⩽ Z ⩽ 111

Cited by 27 publications

References 19 publications

Half lives of heaviest nuclei with Woods-Saxon potential

Half lives of heaviest nuclei with Woods-Saxon potential

Decay Properties and Stability of Heaviest Elements

Direct observation of first-chance fission ofNo258

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