Cover Image

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...

Full description

Saved in:
Bibliographic Details
Main Authors: Minaya Ramirez, E. (Author) , Blaum, Klaus (Author) , Eibach, Martin Andreas (Author)
Format: Article (Journal)
Language:English
Published: August 9, 2012
In: Science
Year: 2012, Volume: 337, Issue: 6099, Pages: 1207-1210
ISSN:1095-9203
DOI:10.1126/science.1225636
Online Access:Verlag, Volltext: http://dx.doi.org/10.1126/science.1225636
Verlag, Volltext: http://science.sciencemag.org/content/337/6099/1207
Get full text
Author Notes: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
Description
Summary: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.
Item Description:Gesehen am 21.11.2018
Physical Description:Online Resource
ISSN:1095-9203
DOI:10.1126/science.1225636

Similar Items