On the Stability of Superheavy Nuclei against Fission, Alpha Decay and Electron Capture

1971 ◽  
Vol 26 (4) ◽  
pp. 643-652 ◽  
Author(s):  
Jens Grumann ◽  
Tihomir Morovic ◽  
Walter Greiner
Keyword(s):  
Potential Energy ◽  
Electron Capture ◽  
Spontaneous Fission ◽  
Energy Surface ◽  
Liquid Drop ◽  
Alpha Decay ◽  
Superheavy Nuclei ◽  
Liquid Drop Model ◽  
Α Decay ◽  
The Stability

AbstractThe potential energy surface has been calculated by two methods which are compared with re­spect to spontaneous fission. In the first one essentially the sum of the single particle energies is computed as was done in a previous paper3 while in the second one the Strutinsky technique of renormalizing to a liquid drop model has been applied. Also the half-lives for electron capture are investigated together with the predictions of the half-lives for spontaneous fission and α-decay. The results support the existence of superheavy nuclei in the regions around Z = 114 and Z = 164.

scholarly journals α decay half-lives of new superheavy nuclei within a generalized liquid drop model

2006 ◽  
Vol 74 (1) ◽  
Author(s):  
Hongfei Zhang ◽  
Wei Zuo ◽  
Junqing Li ◽  
G. Royer
Keyword(s):  
Liquid Drop ◽  
Superheavy Nuclei ◽  
Liquid Drop Model ◽  
Α Decay

scholarly journals ALPHA DECAY POTENTIAL BARRIERS AND HALF-LIVES AND ANALYTICAL FORMULA PREDICTIONS FOR SUPERHEAVY NUCLEI

2008 ◽  
Vol 17 (10) ◽  
pp. 2270-2274 ◽  
Author(s):  
GUY ROYER ◽  
HONGFEI ZHANG
Keyword(s):  
Liquid Drop ◽  
Analytical Formula ◽  
Alpha Decay ◽  
Proximity Effects ◽  
Superheavy Nuclei ◽  
Α Decay ◽  
Potential Barriers ◽  
Alpha Emitter ◽  
Decay Potential ◽  
Penetration Probability

The α decay potential barriers are determined in the cluster-like shape path within a generalized liquid drop model including the proximity effects between the α particle and the daughter nucleus and adjusted to reproduce the experimental Qα. The α emission half-lives are determined within the WKB penetration probability. Calculations using previously proposed formulae depending only on the mass and charge of the alpha emitter and Qα are also compared with new experimental alpha-decay half-lives. The agreement allows to provide predictions for the α decay half-lives of other still unknown superheavy nuclei using the Qα determined from the 2003 atomic mass evaluation of Audi, Wapstra and Thibault.

α -decay half-lives of superheavy nuclei from a modified generalized liquid-drop model

2018 ◽  
Vol 98 (2) ◽  
Author(s):  
K. P. Santhosh ◽  
C. Nithya ◽  
H. Hassanabadi ◽  
Dashty T. Akrawy
Keyword(s):  
Liquid Drop ◽  
Superheavy Nuclei ◽  
Liquid Drop Model ◽  
Α Decay

PROPERTIES OF ALPHA DECAY TO ROTATIONAL BANDS OF HEAVY NUCLEI

2010 ◽  
Vol 19 (10) ◽  
pp. 1961-1971 ◽  
Author(s):  
Y. Z. WANG ◽  
J. Z. GU ◽  
J. M. DONG ◽  
B. B. PENG
Keyword(s):  
Experimental Data ◽  
Ground State ◽  
Liquid Drop ◽  
Alpha Decay ◽  
Branching Ratios ◽  
Heavy Nuclei ◽  
Liquid Drop Model ◽  
Α Decay ◽  
Rotational Bands ◽  
Good Agreement

In the framework of the generalized liquid drop model (GLDM) and improved Royer's formula, we investigate the branching ratios and half-lives of α-decay to the members of the ground-state rotational bands of heavy even–even Fm and No isotopes. The calculated results are in good agreement with the available experimental data and some useful predictions are provided for future experiments.

ALPHA DECAY HALF-LIVES OF EXOTIC NUCLEI AROUND SHELL CLOSURES

2011 ◽  
Vol 20 (01) ◽  
pp. 127-138 ◽  
Author(s):  
Y. Z. WANG ◽  
Q. F. GU ◽  
J. M. DONG ◽  
B. B. PENG
Keyword(s):  
Liquid Drop ◽  
Alpha Decay ◽  
Exotic Nuclei ◽  
Future Research ◽  
Liquid Drop Model ◽  
Α Decay ◽  
Shell Closures ◽  
Experimental Values ◽  
Closed Shells ◽  
Good Agreement

In the framework of the generalized liquid drop model (GLDM) and improved Royer's formula with a set of new coefficients derived by N. D. Schubert et al. [Eur. Phys. J. A42 (2009) 121], the favored and unfavored α-decay half-lives of exotic nuclei around closed shells Z = 82 and N = 126 are investigated. The calculated results are in good agreement with the experimental data. It is shown that our method can be used to study the α-decay half-lives of exotic nuclei around shell closures successfully and is helpful for future research on superheavy nuclei around the next proton and neutron shell closures. In addition, some α-decay half-lives for the cases where the experimental values are unavailable are predicted. We hope our predicted results are useful for future experiments.

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