Journalartikel

Jahr der Veröffentlichung: 2012

Seiten: 1207-1210

Zeitschrift: Science

Bandnummer: 337

Heftnummer: 6099

ISSN: 0036-8075

eISSN: 1095-9203

Open Access Status: Green

DOI Link: https://doi.org/10.1126/science.1225636

Verlag: American Association for the Advancement of Science

Abstract: 
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.

Harvard-Zitierstil: Ramirez, E., Ackermann, D., Blaum, K., Block, M., Droese, C., Duellmann, C., et al. (2012) Direct Mapping of Nuclear Shell Effects in the Heaviest Elements, Science, 337(6099), pp. 1207-1210. https://doi.org/10.1126/science.1225636

APA-Zitierstil: Ramirez, E., Ackermann, D., Blaum, K., Block, M., Droese, C., Duellmann, C., Dworschak, M., Eibach, M., Eliseev, S., Haettner, E., Herfurth, F., Hessberger, F., Hofmann, S., Ketelaer, J., Marx, G., Mazzocco, M., Nesterenko, D., Novikov, Y., Plass, W., ...Weber, C. (2012). Direct Mapping of Nuclear Shell Effects in the Heaviest Elements. Science. 337(6099), 1207-1210. https://doi.org/10.1126/science.1225636