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COMPARISON OF THE FUSION-FISSION AND QUASIFISSION MECHANISMS IN HEAVY-ION COLLISIONS (CROSBI ID 252940)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Nasirov, Avazbek ; Fazio, Giovanni ; Giardina, Giorgio ; Mandaglio, Giuseppe ; Manganaro, Marina ; Hanappe, Francis ; Muminov, Akhtam ; Scheid, Werner COMPARISON OF THE FUSION-FISSION AND QUASIFISSION MECHANISMS IN HEAVY-ION COLLISIONS // International journal of modern physics E, 18 (2009), 4; 841-849. doi: 10.1142/S021830130901294X

Podaci o odgovornosti

Nasirov, Avazbek ; Fazio, Giovanni ; Giardina, Giorgio ; Mandaglio, Giuseppe ; Manganaro, Marina ; Hanappe, Francis ; Muminov, Akhtam ; Scheid, Werner

engleski

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

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 Ca-48+Sm-154 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 Ca-48+Sm-154 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 Cr-54+Cm-248, Fe-58+Pu-244, and Ni-64+U-238 reactions. Our estimations show that the Cr-54+Cm-248 reaction is preferable in comparison with the two others.

ELEMENTS ; NUCLEI

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Podaci o izdanju

18 (4)

2009.

841-849

objavljeno

0218-3013

1793-6608

10.1142/S021830130901294X

Povezanost rada

Fizika

Poveznice
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