Properties of the hypothetical spherical superheavy nuclei

Smolańczuk, R.

doi:10.1103/physrevc.56.812

Cited by 261 publications

(282 citation statements)

References 58 publications

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“…Figure 5 shows the density distributions for N = 172-196 and Z = 114 with assumed spherical shape. Indeed, these nuclei were predicted to be nearly spherical in their ground states [13]. It can be seen that proton densities have central depressions and neutron densities become centrally depressed for N 178.…”

Section: A Density Distributions Of Spherical Nucleimentioning

confidence: 99%

“…The ground states of most superheavy nuclei are expected to have axially symmetric or spherical shape [13]. In this article, we consider the most important axially symmetric deformations, β 2 and β 4 .…”

Section: Calculationsmentioning

confidence: 99%

“…Recent progress in experiments are motivating the structure study of superheavy nuclei [9,10]. Many theoretical works have investigated the properties of superheavy nuclei [11][12][13][14][15][16][17][18][19][20], such as shell structure, α decay, and spontaneous fission. Experiments have also provided the structure information of superheavy nuclei by the in-beam study of spectroscopy [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Density distributions of superheavy nuclei

2005

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We employed the Skyrme-Hartree-Fock model to investigate the density distributions and their dependence on nuclear shapes and isospins in the superheavy mass region. Different Skyrme forces were used for the calculations with a special comparison to the experimental data in 208 Pb. The ground-state deformations, nuclear radii, neutron-skin thicknesses and α-decay energies were also calculated. Density distributions were discussed with the calculations of single-particle wave functions and shell fillings. Calculations show that deformations have considerable effects on the density distributions, with a detailed discussion on the 292 120 nucleus. Earlier predictions of remarkably low central density are not supported when deformation is allowed for.

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Section: A Density Distributions Of Spherical Nucleimentioning

confidence: 99%

Section: Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Density distributions of superheavy nuclei

2005

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“…The syntheses of the heaviest known and most neutronrich superheavy elements have involved the fusion of doubly magic 48 Ca ions with radioactive actinide targets. These experiments were pioneered at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia.…”

Section: Eleven New Heaviest Isotopes Of Elements Z=105 To Z=117mentioning

confidence: 99%

“…These experiments were pioneered at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia. The first superheavy elements that were synthesized in Dubna were the even-Z nuclei (with Z = 114 and 116) produced in fusion reactions of 244 Pu and 248 Cm targets with 48 Ca projectiles [8,9]. In subsequent experiments of 48 Cainduced reactions with the long-lived even-Z target nuclei 238 U, 242 Pu, 245 Cm and 249 Cf, other even-Z nuclides with Z = 112 -118 have been synthesized [10][11][12].…”

Section: Eleven New Heaviest Isotopes Of Elements Z=105 To Z=117mentioning

confidence: 99%

Eleven new heaviest isotopes of elementsZ=105toZ=117identified among the products of
Oganessian¹,
Abdullin²,
Bailey³
et al. 2011
Phys. Rev. C
125
5
35
0
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Actinides and Transactinides

Seaborg

Hoffman

Lee

2001

Kirk-Othmer Encyclopedia of Chemical Technology

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The actinide elements are a group of chemically similar elements with atomic numbers 89 through 103, and include actinium, thorium, protactinium, uranium, neptunium, plutonium, americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, and lawrencium. Each of the elements has a number of isotopes, all radioactive. Thorium, uranium, and plutonium are well known for their role as the basic fuels (or sources of fuel) for the release of nuclear energy. The importance of the remainder of the actinide group lies at present in research. The actinides present a storage‐life problem in nuclear waste disposal. Only the members of the actinide group through Pu have been found to occur in nature. Thorium and uranium occur widely in the earth's crust in combination with other elements, and, in the case of uranium, in significant concentrations in the oceans. With these exceptions, the actinide elements are synthetic in origin for practical purposes, ie, they are products of nuclear reactions. All the actinide elements are radioactive, and, except for thorium and uranium, special equipment and shielded facilities are usually necessary for their manipulation. Special techniques for experimentation with the actinide elements other than Th and U have been devised because of the potential health hazard to the experimenter and the small amounts available. The actinide elements exhibit uniformity in ionic types. Corresponding ionic types are similar in chemical behavior, although the relative stabilities differ from element to element. Of the actinide ions, the small, highly charged \documentclass{article}\pagestyle{empty}\begin{document}${{\rm{M}}{^{4+}}}$\end{document} ions exhibit the greatest degree of hydrolysis and complex ion formation. The actinide metals, like the lanthanide metals, are highly electropositive. They can be prepared by the electrolysis of molten salts or by the reduction of a halide with an electropositive metal, such as calcium or barium. Thousands of compounds of the actinide elements have been prepared. The elements beyond the actinides in the periodic table can be termed the transactinides. These begin with the element having atomic number 104 and extend, in principle, indefinitely. Nine such elements, numbers 104–1112, are now known, and evidence for the observation of elements 114, 116, and 118 was published in 1999. These reports now await confirmation. Thse elements are synthesized by the bombardment of heavy nuclides with heavy ions. Modern high‐speed computers have made possible the calculation of the electronic structure of the atoms, which gives some general guidance about chemical properties. Recently, the even more difficult theoretical problem of predicting the behavior of molecular species under actual experimental conditions has been addressed using relativistic quantum‐chemical calculations combined with fundamental physicochemical considerations.

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Properties of the hypothetical spherical superheavy nuclei

Cited by 261 publications

References 58 publications

Density distributions of superheavy nuclei

Density distributions of superheavy nuclei

Eleven new heaviest isotopes of elementsZ=105toZ=117identified among the products of
Oganessian¹,
Abdullin²,
Bailey³
et al. 2011
Phys. Rev. C
125
5
35
0
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Actinides and Transactinides

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Properties of the hypothetical spherical superheavy nuclei

Cited by 261 publications

References 58 publications

Density distributions of superheavy nuclei

Density distributions of superheavy nuclei

Eleven new heaviest isotopes of elementsZ=105toZ=117identified among the products ofOganessian1, Abdullin2, Bailey3 et al. 2011Phys. Rev. C1255350View full textAdd to dashboardCite

Actinides and Transactinides

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Eleven new heaviest isotopes of elementsZ=105toZ=117identified among the products of
Oganessian¹,
Abdullin²,
Bailey³
et al. 2011
Phys. Rev. C
125
5
35
0
View full text Add to dashboard Cite