Direct mapping of nuclear shell effects in the heaviest elements
Quantum-mechanical shell effects are expected to strongly enhance nuclear binding on an “island of stability” of superheavy elements. The predicted center at proton number Z = 114, 120, or 126 and neutron number N = 184 has been substantiated by the recent synthesis of new elements up to Z = 118. Ho...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 9, 2012
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| In: |
Science
Year: 2012, Jahrgang: 337, Heft: 6099, Pages: 1207-1210 |
| ISSN: | 1095-9203 |
| DOI: | 10.1126/science.1225636 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1126/science.1225636 Verlag, Volltext: http://science.sciencemag.org/content/337/6099/1207 
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| Verfasserangaben: | E. Minaya Ramirez, D. Ackermann, K. Blaum, M. Block, C. Droese, Ch. E. Düllmann, M. Dworschak, M. Eibach, S. Eliseev, E. Haettner, F. Herfurth, F.P. Heßberger, S. Hofmann, J. Ketelaer, G. Marx, M. Mazzocco, D. Nesterenko, Yu. N. Novikov, W.R. Plaß, D. Rodríguez, C. Scheidenberger, L. Schweikhard, P.G. Thirolf, C. Weber |
| Zusammenfassung: | Quantum-mechanical shell effects are expected to strongly enhance nuclear binding on an “island of stability” of superheavy elements. The predicted center at proton number Z = 114, 120, or 126 and neutron number N = 184 has been substantiated by the recent synthesis of new elements up to Z = 118. However, the location of the center and the extension of the island of stability remain vague. High-precision mass spectrometry allows the direct measurement of nuclear binding energies and thus the determination of the strength of shell effects. Here, we present such measurements for nobelium and lawrencium isotopes, which also pin down the deformed shell gap at N = 152. Highly precise mass measurements of nobelium and lawrencium isotopes provide insight into superheavy element stability. |
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| Beschreibung: | Gesehen am 21.11.2018 |
| Beschreibung: | Online Resource |
| ISSN: | 1095-9203 |
| DOI: | 10.1126/science.1225636 |