Observation of new neutron-deficient isotopes with Z
92 in multinucleon transfer reactions
多核子移行反応によるZ
92領域の中性子欠損核の生成
Devaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Comas, V. F.*; Hofmann, S.*; Hornung, C.*; M
nzenberg, G.*; 西尾 勝久
; Ackermann, D.*; Gambhir, Y. K.*; Gupta, M.*; Henderson, R. A.*; He
berger, F. P.*; Khuyagbaatar, J.*; Kindler, B.*; Lommel, B.*; Moody, K. J.*; Maurer, J.*; Mann, R.*; Popeko, A. G.*; Shaughnessy, D. A.*; Stoyer, M. A.*; Yeremin, A. V.*
Devaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Comas, V. F.*; Hofmann, S.*; Hornung, C.*; M
nzenberg, G.*; Nishio, Katsuhisa; Ackermann, D.*; Gambhir, Y. K.*; Gupta, M.*; Henderson, R. A.*; He
berger, F. P.*; Khuyagbaatar, J.*; Kindler, B.*; Lommel, B.*; Moody, K. J.*; Maurer, J.*; Mann, R.*; Popeko, A. G.*; Shaughnessy, D. A.*; Stoyer, M. A.*; Yeremin, A. V.*
In deep inelastic multinucleon transfer reactions of
Ca +
Cm we observed about 100 residual nuclei with proton numbers between Z =82 and Z =100. Among them, there are five new neutron-deficient isotopes:
U,
Np,
Am,
Am and
Bk. As separator for the transfer products we used the velocity filter SHIP of GSI while the isotope identification was performed via the
-decay chains of the nuclei. These first results reveal that multinucleon transfer reactions together with here applied fast and sensitive separation and detection techniques are promising for the synthesis of new isotopes in the region of heaviest nuclei.