Observation of new neutron-deficient isotopes with Z ≥ 92 in multinucleon transfer reactions

被引：74

作者：

Deyaraja, H. M. ^{[1
,2
]}

Heinz, S. ^{[1
,3
]}

Beliuskina, O. ^{[1
,3
]}

Comas, V. ^{[1
]}

Hofmann, S. ^{[1
]}

Hornung, C. ^{[3
]}

Muenzenberg, G. ^{[1
,2
]}

Nishio, K. ^{[4
]}

Ackermann, D. ^{[1
]}

Gambhir, Y. K. ^{[2
]}

Gupta, M. ^{[2
]}

Henderson, R. A. ^{[5
]}

Hessberger, F. P. ^{[1
]}

Khuyagbaatar, J. ^{[1
]}

Kindler, B. ^{[1
]}

Lommel, B. ^{[1
]}

Moody, K. J. ^{[5
]}

Maurer, J. ^{[1
]}

Mann, R. ^{[1
]}

Popeko, A. G. ^{[6
]}

Shaughnessy, D. A. ^{[5
]}

Stoyer, M. A. ^{[5
]}

Yeremin, A. V. ^{[6
]}

机构：

[1] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[2] Manipal Univ, Manipal Ctr Nat Sci, Manipal 576014, Karnataka, India

[3] Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany

[4] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

[5] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[6] Joint Inst Nucl Res, Dubna 141980, Russia

来源：

PHYSICS LETTERS B | 2015年 / 748卷

关键词：

New isotopes; Heavy ion collisions; Deep inelastic transfer reactions; Alpha decay; ACTINIDE PRODUCTION; DISCOVERY;

D O I：

10.1016/j.physletb.2015.07.006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In deep inelastic multinucleon transfer reactions of Ca-48 + Cm-248 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-216, Np-219, Am-223, Am-229 and Bk-233. As separator for the transfer products we used the velocity filter SHIP of GSI while the isotope identification was performed via the alpha 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. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：199 / 203

页数：5

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