Eleven new heaviest isotopes of elements Z=105 to Z=117 identified among the products of Bk249+Ca48 reactions

Yu Ts Oganessian, F. Sh Abdullin, P. D. Bailey, D. E. Benker, M. E. Bennett, S. N. Dmitriev, J. G. Ezold, J. H. Hamilton, R. A. Henderson, M. G. Itkis, Yu V. Lobanov, A. N. Mezentsev, K. J. Moody, S. L. Nelson, A. N. Polyakov, C. E. Porter, A. V. Ramayya, F. D. Riley, J. B. Roberto, M. A. RyabininK. P. Rykaczewski, R. N. Sagaidak, D. A. Shaughnessy, I. V. Shirokovsky, M. A. Stoyer, V. G. Subbotin, R. Sudowe, A. M. Sukhov, R. Taylor, Yu S. Tsyganov, V. K. Utyonkov, A. A. Voinov, G. K. Vostokin, P. A. Wilk

Research output: Contribution to journalArticlepeer-review

133 Scopus citations

Abstract

The heaviest isotopes of elements Z=117 to Z=105, 294117, 293117, 290115, 289115, 286113, 285113, Rg282, Rg281, Mt278, Bh274, and Db270, were identified by means of the Dubna gas-filled recoil separator among the products of the Bk249 + Ca48 reaction. The details of the observed six decay chains, indicating the production and decay of isotopes 293117 and 294117, are presented and discussed. The decay energies and resulting half-lives of these new nuclei show a strong rise of stability with increasing neutron number, validating the concept of the island of enhanced stability for superheavy nuclei.

Original languageEnglish
Article number054315
JournalPhysical Review C - Nuclear Physics
Volume83
Issue number5
DOIs
StatePublished - May 18 2011

Fingerprint

Dive into the research topics of 'Eleven new heaviest isotopes of elements Z=105 to Z=117 identified among the products of Bk249+Ca48 reactions'. Together they form a unique fingerprint.

Cite this