Heavy particle radioactivity from superheavy nuclei leading to ${}^{298}$114 daughter nuclei

Abstract

The feasibility for the alpha decay and the heavy particle decay from the even-even superheavy (SH) nuclei with Z = 116-124 have been studied within the Coulomb and proximity potential model (CPPM). The Universal formula for cluster decay (UNIV) of Poenaru et al., the Universal Decay Law (UDL) and the Scaling Law of Horoi et al., has also been used for the evaluation of the decay half lives. A comparison of our predicted half lives with the values evaluated using these empirical formulas are in agreement with each other and hence CPPM could be considered as a unified model for alpha and cluster decay studies. The spontaneous fission half lives of the corresponding parents have also been evaluated using the semi-empirical formula of Santhosh et al. Within our fission model, we have studied cluster formation probability for various clusters and the maximum cluster formation probability for the decay accompanying ${}^{298}$114 reveals its doubly magic behavior. In the plots for log_10(T_1/2) against the neutron number of the daughter in the corresponding decay, the half life is found to be the minimum for the decay leading to ${}^{298}$114 (Z = 114, N = 184) and this also indicate its doubly magic behavior. Most of the predicted half lives are well within the present upper limit for measurements and the computed alpha half lives for ${}^{290,292}$116 agrees well with the experimental data. We have thus confidently indicate towards a new island for the cluster radioactivity around the superheavy isotope ${}^{298}$114 and its neighbors and we hope to receive experimental information about the cluster decay half lives of these considered SHs, hoping to confirm the present calculations.

23 pages, 6 figures

References in corpus (9)

• Universal decay law in charged-particle emission and exotic cluster radioactivity
• Heavy particle radioactivities of superheavy nuclei
• Microscopic mechanism of charged-particle radioactivity and generalization of the Geiger-Nuttall law
• Search for long lived heaviest nuclei beyond the valley of stability
• Cluster decay half lives of trans-lead nuclei within the Coulomb and proximity potential model
• Fine structure in the α-decay of odd-even nuclei
• Systematic study of heavy cluster emission from {210-226}^Ra isotopes
• Structure effects in the region of superheavy elements via the $\alpha$-decay chain of ${}^{293}$118
• Cold reaction valleys in the radioactive decay of superheavy {286}^112, {292}^114 and {296}^116 nuclei

Cited by in corpus (9)

• Cluster Radioactivity in Super Heavy Nuclei
• Systematic study of α decay using different versions of proximity formalism
• Feasibility of observing the α decay chains from isotopes of SHN with Z = 128, Z = 126, Z = 124 and Z = 122
• The competition between alpha decay and spontaneous fission in odd-even and odd-odd nuclei in the range 99 \leg Z \leg 129
• Two-proton radioactivity within Coulomb and proximity potential model
• Predictions on the alpha decay half lives of Superheavy nuclei with Z = 113 in the range 255 l.e. A l.e. 314
• Probable cluster decays from ${}^{270-318}$118 superheavy nuclei
• Isotopic yield in cold binary fission of even-even ${}^{244-258}$Cf isotopes
• Predictions on the alpha decay chains of superheavy nuclei with Z =121 within the range 290 $\le$ A $\le$ 339