/ Theory-Nucl

Characteristics of spontaneous fission of $^{250}$No

Svirikhin, A.I. (Dubna, JINR) ; Andreev, A.V. (Dubna, JINR) ; Yeremin, A.V. (Dubna, JINR) ; Izosimov, I.N. (Dubna, JINR) ; Isaev, A.V. (Dubna, JINR) ; Kuznetsov, A.N. (Dubna, JINR) ; Kuznetsova, A.A. (Dubna, JINR) ; Malyshev, O.N. (Dubna, JINR) ; Popeko, A.G. (Dubna, JINR) ; Popov, Y.A. (Dubna, JINR) ; Sokol, E.A. (Dubna, JINR) ; Chelnokov, M.L. (Dubna, JINR) ; Chepigin, V.I. (Dubna, JINR) ; Schneidman, T.M. (Dubna, JINR) ; Gall, B. (Strasbourg, IPHC) ; Dorvaux, O. (Strasbourg, IPHC) ; Brione, P. (Strasbourg, IPHC) ; Hauschild, K. (CSNSM, Orsay) ; Lopez-Martenz, A. (CSNSM, Orsay) ; Rezynkina, K. (CSNSM, Orsay) ; Mullins, S. (iThemba LABS) ; Jones, P. (iThemba LABS) ; Mosat, P. (Comenius U.)

Published in: Phys.Part.Nucl.Lett.
Year: 2017
Vol.: 14    Num./Issue: 4
Page No: 571-575
Pages: 5
Year: 2017-07-01 published

Abstract: This study describes an experiment on investigating the properties of spontaneous fission of shortlived neutron-deficient nuclei synthesized in the reaction of complete fusion $^{48}$Ca +$^{204}$Pb = $^{252}$No*. The experiment is performed using the SHELS separator and the beam of multicharged ions at U-400 accelerator (LNR, JINR). Two activities undergoing spontaneous fission, which can be related to the ground and isomeric states of $^{250}$No nucleus, are registered. The half-lives, total kinetic energies of fission fragments, and neutron multiplicities are measured for the short-lived nuclei. The average number of neutrons per fission for the activity with t$_{1/2}$ = 5.1 ± 0.3 μs is = 4.38 ± 0.13 μs, and for nuclei with the half-life t$_{1/2}$ = 36 ± 3 μs it is xxxxx.

Total numbers of views: 431
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DOI: 10.1134/S1547477117040161
 Record created 2017-07-04, last modified 2017-07-04

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