Probable spontaneous decay modes of 254Es radioactive nucleus

2021 ◽  
Author(s):  
Nitin Sharma ◽  
Vishal Parmar ◽  
Amandeep Kaur ◽  
Manoj K. Sharma

Author(s):  
Nitin Sharma ◽  
Manoj K. Sharma

Pioneering study reveals that a radioactive nucleus may split into two or three fragments and the phenomena are known as binary fission and ternary fission respectively. In order to understand the nuclear stability and related structure aspects, it is of huge interest to explore the fragmentation behavior of a radioactive nucleus in binary and ternary decay modes. In view of this, Binary and ternary fission analysis of 252Cf nucleus is carried out using quantum mechanical fragmentation theory (QMFT). The nuclear potential and Coulomb potential are estimated using different versions of radius vector. The fragmentation structure is found to be independent to the choice of fragment radius for binary as wellas ternary decay paths. The deformation effect is included up to quadrupole (β2) with optimum cold orientations and their influence is explored within binary splitting mode. Moreover, the most probable fission channels explore the role of magic shell effects in binary and ternary fission modes. 



2020 ◽  
Vol 84 (12) ◽  
pp. 1557-1562
Author(s):  
Kanishka Sharma ◽  
Manoj K. Sharma


1982 ◽  
Vol 25 (11) ◽  
pp. 2869-2886 ◽  
Author(s):  
K. G. Hayes ◽  
M. L. Perl ◽  
M. S. Alam ◽  
A. M. Boyarski ◽  
M. Breidenbach ◽  
...  


2020 ◽  
Vol 101 (5) ◽  
Author(s):  
A. S. Kuraptsev ◽  
I. M. Sokolov
Keyword(s):  


2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Yudai Ichikawa ◽  
Junko Yamagata-Sekihara ◽  
Jung Keun Ahn ◽  
Yuya Akazawa ◽  
Kanae Aoki ◽  
...  

Abstract We have measured, for the first time, the inclusive missing-mass spectrum of the $^{12}$C$(K^-, p)$ reaction at an incident kaon momentum of 1.8 GeV/$c$ at the J-PARC K1.8 beamline. We observed a prominent quasi-elastic peak ($K^-p \rightarrow K^-p$) in this spectrum. In the quasi-elastic peak region, the effect of secondary interaction is apparently observed as a peak shift, and the peak exhibits a tail in the bound region. We compared the spectrum with a theoretical calculation based on the Green’s function method by assuming different values of the parameters for the $\bar{K}$–nucleus optical potential. We found that the spectrum shape in the binding-energy region $-300 \, \text{MeV} < B_{K} < 40$ MeV is best reproduced with the potential depths $V_0 = -80$ MeV (real part) and $W_0 = -40$ MeV (imaginary part). On the other hand, we observed a significant event excess in the deeply bound region around $B_{K} \sim 100$ MeV, where the major decay channel of $K^- NN \to \pi\Sigma N$ is energetically closed, and the non-mesonic decay modes ($K^- NN \to \Lambda N$ and $\Sigma N$) should mainly contribute. The enhancement is fitted well by a Breit–Wigner function with a kaon-binding energy of 90 MeV and width 100 MeV. A possible interpretation is a deeply bound state of a $Y^{*}$-nucleus system.





1991 ◽  
Vol 44 (6) ◽  
pp. 2372-2384 ◽  
Author(s):  
S. D. Hoblit ◽  
A. M. Nathan


2007 ◽  
Vol 76 (1) ◽  
Author(s):  
B. Aubert ◽  
M. Bona ◽  
D. Boutigny ◽  
Y. Karyotakis ◽  
J. P. Lees ◽  
...  


1966 ◽  
Vol 41 (4) ◽  
pp. 618-621 ◽  
Author(s):  
T. Das ◽  
K. T. Mahantappa
Keyword(s):  


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