scholarly journals Estimation of evaporation residue cross section for the synthesis of superheavy nuclei

2017 ◽  
Vol 163 ◽  
pp. 00002 ◽  
Author(s):  
Yoshihiro Aritomo ◽  
Shyou Sawada ◽  
Nur Liyana ◽  
Jin Nakagawa ◽  
Shoya Tanaka ◽  
...  
2020 ◽  
pp. 1-8
Author(s):  
H.C. Manjunatha ◽  
L. Seenappa ◽  
N. Sowmya ◽  
K.N. Sridhar

We have studied the 54–60Fe-induced fusion reactions to synthesize the superheavy nuclei296–302120 by studying the compound nucleus formation probability, survival probability, and evaporation residue cross-sections. The comparison of the evaporation residue cross-section for different targets reveals that the evaporation residue cross-section is larger for projectile target combination 58Fe+243Pu→301120. We have identified the most probable 58Fe-induced fusion reactions to synthesize superheavy nuclei 296–302120. The suggested reactions may be useful to synthesize the superheavy element Z = 120.


2010 ◽  
Vol 19 (05n06) ◽  
pp. 882-893 ◽  
Author(s):  
G. GIARDINA ◽  
G. FAZIO ◽  
G. MANDAGLIO ◽  
M. MANGANARO ◽  
A. K. NASIROV ◽  
...  

In order to explore the possibilities to synthesize the new superheavy elements with Z =120, 122, 124, 126 some hot-fusion (mass asymmetric) reactions and cold-fusion (less mass asymmetric) reactions are studied. The dynamics of reaction with massive nuclei and the formation probability of heavy and superheavy elements with Z =90-126 in the asymmetric and symmetric reactions are discussed. The systematics of fusion probability P CN and evaporation residue cross section σER in these reactions are presented. Moreover, we explore the possibility of synthesis of superheavy nuclei by the use of reaction with the neutron rich radioactive beam 132 Sn , and by symmetric reactions like 136 Xe +136 Xe and 139,149 La + 139,149 La .


2020 ◽  
Vol 102 (3) ◽  
Author(s):  
P. V. Laveen ◽  
E. Prasad ◽  
N. Madhavan ◽  
A. K. Nasirov ◽  
J. Gehlot ◽  
...  

2014 ◽  
Vol 29 (40) ◽  
pp. 1450214 ◽  
Author(s):  
M. R. Pahlavani ◽  
S. A. Alavi

By using semiclassical method and considering Woods–Saxon and Coulomb potentials, the level density parameter a was calculated for three superheavy nuclei 270110, 278112 and 290116. Obtained results showed that the value of level density parameter of these nuclei is near to the simple relation a ≈ A/10. In framework of the dinuclear system model, the effects of level density parameter on the probability of the formation of a compound nucleus, the ratio of neutron emission width and fission width, and evaporation residue cross-section of three cold fusion reactions 62 Ni +208 Pb , 70 Zn +208 Pb and 82 Se +208 Pb , leading to superheavy elements were investigated. The findings indicate that the level density parameter play a significant role in calculations of heavy-ion fusion–fission reactions. The obtained results in the case of a = A/12 have larger values in comparison with calculated level density parameter with Woods–Saxon potential (a WS ) and a = A/10. The theoretical results of the evaporation residue cross-section are very sensitive to the choice of level density parameter. The calculated values with a WS are in good agreement with experimental values.


2006 ◽  
Vol 74 (6) ◽  
Author(s):  
P. D. Shidling ◽  
N. M. Badiger ◽  
S. Nath ◽  
R. Kumar ◽  
A. Jhingan ◽  
...  

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