Abstract
The discovery of a new chemical element with atomic number is reported. The isotopes and were produced in fusion reactions between and . Decay chains involving 11 new nuclei were identified by means of the Dubna gas-filled recoil separator. The measured decay properties show a strong rise of stability for heavier isotopes with , validating the concept of the long sought island of enhanced stability for superheavy nuclei.
- Received 15 March 2010
DOI:https://doi.org/10.1103/PhysRevLett.104.142502
©2010 American Physical Society
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This article appears in the following collection:
Transuranium Elements and the Physical Review
This collection marks the 150th anniversary of Dmitri Mendeleev’s discovery of the Periodic Table of Elements.
Viewpoint
Exploring the island of superheavy elements
Published 9 April 2010
A collaboration of Russian and US physicists has created the superheavy element 117, an experimental achievement that fills in the final gap on the list of observed elements up to element 118.
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