Production cross sections of superheavy nuclei based on dinuclear system model

2006 ◽  
Vol 771 ◽  
pp. 50-67 ◽  
Author(s):  
Zhao-Qing Feng ◽  
Gen-Ming Jin ◽  
Fen Fu ◽  
Jun-Qing Li
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
System Model ◽  
Superheavy Nuclei ◽  
Dinuclear System

Production cross sections of the superheavy nucleus 117 based on the dinuclear system model

2010 ◽  
Vol 34 (10) ◽  
pp. 1609-1614 ◽  
Author(s):  
Zhao Wei-Juan ◽  
Zhang Yong-Qi ◽  
Wang Hua-Lei ◽  
Song Li-Tao ◽  
Li Lu-Lu
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Superheavy Nucleus ◽  
System Model ◽  
Dinuclear System

Entrance Channel Dependence of Production Cross Sections of Superheavy Nuclei in Cold Fusion Reactions

2005 ◽  
Vol 22 (4) ◽  
pp. 846-849 ◽  
Author(s):  
Feng Zhao-Qing ◽  
Jin Gen-Ming ◽  
Fu Fen ◽  
Zhang Feng-Shou ◽  
Jia Fei ◽  
...  
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Cold Fusion ◽  
Entrance Channel ◽  
Superheavy Nuclei ◽  
Fusion Reactions

COMPARISON OF THE FUSION-FISSION AND QUASIFISSION MECHANISMS IN HEAVY-ION COLLISIONS

2009 ◽  
Vol 18 (04) ◽  
pp. 841-849 ◽  
Author(s):  
AVAZBEK NASIROV ◽  
GIOVANNI FAZIO ◽  
GIORGIO GIARDINA ◽  
GIUSEPPE MANDAGLIO ◽  
MARINA MANGANARO ◽  
...  
Keyword(s):  
Cross Sections ◽  
Theoretical Method ◽  
Heavy Ion ◽  
Evaporation Residue ◽  
System Model ◽  
Complete Fusion ◽  
Dinuclear System ◽  
Ion Collisions ◽  
Partial Fusion ◽  
Evaporation Residues

The decrease of the evaporation residue yields in reactions with massive nuclei is explained by an increase of the competition between quasifission and complete fusion processes and by the decrease of the survival probability of the heated and rotating nuclei against fission along the de-excitation cascade of the compound nucleus. The experimental data on the yields of evaporation residue, fusion-fission and quasifission fragments in the 48 Ca + 154 Sm reaction are analyzed in the framework of the combined theoretical method based on the dinuclear system concept and advanced statistical model. The measured yields of evaporation residues of the 48 Ca + 154 Sm reaction have been well reproduced and yields of fission fragments were analyzed using the partial fusion and quasifission cross sections calculated in the dinuclear system model. Such a way of calculation is used to find optimal conditions for the synthesis of the new element Z = 120 (A = 302) by studying the excitation functions of evaporation residues of the 54 Cr + 248 Cm , 58 Fe + 244 Pu , and 64 Ni + 238 U reactions. Our estimations show that the 54 Cr + 248 Cm reaction is preferable in comparison with the two others.

scholarly journals Fusion cross sections for superheavy nuclei in the dinuclear system concept

1998 ◽  
Vol 633 (3) ◽  
pp. 409-420 ◽  
Author(s):  
G.G. Adamian ◽  
N.V. Antonenko ◽  
W. Scheid ◽  
V.V. Volkov
Keyword(s):  
Cross Sections ◽  
Superheavy Nuclei ◽  
Dinuclear System ◽  
System Concept

CLUSTER ASPECTS OF PRODUCTION AND DECAY OF EXOTIC NUCLEI

2008 ◽  
Vol 17 (10) ◽  
pp. 2363-2367
Author(s):  
G. G. ADAMIAN ◽  
N. V. ANTONENKO ◽  
A. S. ZUBOV ◽  
W. SCHEID
Keyword(s):  
Exotic Nuclei ◽  
System Model ◽  
Superheavy Nuclei ◽  
Complete Fusion ◽  
Shell Closure ◽  
Fusion Reactions ◽  
Dinuclear System ◽  
Proton Shell

Within the dinuclear system model we analyse the production of yet unknown superheavy nuclei with Z > 118 and neutron-deficient isotopes of Pu in various complete fusion reactions. The yields of superheavies with Z > 118 are sensitive to the location of the next proton shell closure. The emission of neutron from the dinuclear systems is discussed.

Synthesis of neutron-rich superheavy nuclei with radioactive beams within the dinuclear system model

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Zhi-Han Wu ◽  
Long Zhu ◽  
Fan Li ◽  
Xiao-Bin Yu ◽  
Jun Su ◽  
...  
Keyword(s):  
System Model ◽  
Superheavy Nuclei ◽  
Radioactive Beams ◽  
Dinuclear System

Production of unknown neutron-rich transuranium isotopes 245−249Np, 248−251Pu, 248−254Am, and 252−254Cm in multinucleon transfer reactions

2021 ◽  
Author(s):  
Jingjing Li ◽  
Gen Zhang ◽  
Xinrui Zhang ◽  
Yuhai Zhang ◽  
Zhong Liu ◽  
...  
Keyword(s):  
Cross Sections ◽  
Incident Energy ◽  
Production Cross ◽  
Exchange Process ◽  
Transfer Reactions ◽  
Experimental Conditions ◽  
Dinuclear System ◽  
Calculation Results ◽  
Actinide Targets ◽  
Multinucleon Transfer Reactions

Abstract The production cross sections of unknown neutron-rich transuranium isotopes of elements Np, Pu, Am and Cm are investigated in multinucleon transfer reactions based on the dinuclear system model with GEMINI code. The influence of the incident energy on the production of neutron-rich transuranium nuclei in actinideactinide collisions is studied. The calculation results show that the final isotopic production cross sections are larger at 1.06-1.10 Vcont than at other energies. Considering the high fissility of transuranium nuclides, 1.06 Vcont is chosen as the optimal incident energy. The N/Z ratio equilibration mechanism in the nucleon transfer process is also studied in this work. The larger difference of N/Z ratio between projectile and target corresponds to larger neutron diffusion during the nucleon exchange process. The 238U beam with high N/Z ratio and neutron-rich actinide targets are good selections to produce neutron-rich transuranium nuclides. The production cross sections of unknown neutron-rich transuranium isotopes 245-249Np, 248-251Pu, 248-254Am, and 252-254Cm are predicted in 238U-induced actinide-based (249Bk, 249Cf, and 252Cf) multinucleon transfer reactions. It is found that a large number of these unknown neutron-rich transuranium nuclei could be generated at the level of nb to µb in the reactions 238U+249Bk and 238U+252Cf. Our research indicates that the reaction 238U+249Bk is a suitable projectile-target combination in the current experimental conditions and the reaction 238U+252Cf could be a promising candidate to produce unknown neutron-rich transuranium nuclides in case that the 252Cf target were to be achieved in the future.

Sign in / Sign up

Export Citation Format

Share Document