Correlation of intrinsic fusion barriers and evaporation residue cross-sections of SHEs

被引：0
作者：
Verma, Dalip Singh [1 ]
Vivek [1 ]
Chauhan, Pooja [1 ]
机构：
[1] Cent Univ Himachal Pradesh, Dept Phys & Astron Sci, Kangra 176215, HP, India
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 03期
关键词：
Fragmentation potentials; Intrinsic fusion barriers; Excitation functions; Fusion-evaporation residue; Optimum energy and Superheavy elements; ELEMENT; 107; IDENTIFICATION; ISOTOPES; NUCLEUS; FISSION; MASSES;
D O I：
10.1007/s10967-023-09043-8
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A correlation between the variation of the intrinsic fusion barrier with incident energy and the measured excitation function of fusion-evaporation residue cross-section has been obtained for the reactions: Ca-48 + U-238 ->(286)(112)Cn*, Ca-48 + Pu-242 ->(290)(114)Fl*, and Ca-48 + Am-243 ->(291)(115)Mc*. The maximum value of the measured fusion-evaporation residue cross-section corresponds to the incident energy which is either equal to or within +/- 5 MeV of the incident energy for which the intrinsic fusion barrier is minimum. The optimum energy estimates obtained for undiscovered superheavy elements formed in reactions V-51 + Cm-248 ->(299)119* and Ti-50 + Cf-249 ->(299)120* are 233.20 MeV and 224.82 MeV, respectively. These estimates agree with the one available in the literature, e.g., the optimum energies for (299)119* are 234.8 +/- 1.8 MeV and 237 MeV, and for (299)120* is 225 MeV.
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页码：1443 / 1451
页数：9
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