Decay of heavy particles from Z=125 superheavy nuclei in the region A=295-325 using different versions of proximity potential

作者：Santhosh K P^*; Sukumaran Indu

来源：International Journal of Modern Physics E-Nuclear Physics, 2017, 26(3): 1750003.

DOI：10.1142/S0218301317500033

• Heavy particle decay
• alpha decay
• superheavy nuclei

Within the framework of Coulomb and proximity potential model (CPPM), the probable heavy particle decays from various isotopes of superheavy nuclei (SHN), Z = 125, within the range A = 295-325 have been studied using two versions of proximity potential; proximity 1977 and proximity 2000. The decay half lives evaluated using proximity 2000 is observed to be higher than the values obtained using proximity 1977. The effect of surface deformation on the decay half lives is studied using Coulomb and proximity potential for deformed nuclei (CPPMDN). As a result of the inclusion of deformation (beta(2)), the penetrability of the decays are observed to be increased and accordingly the decay half lives are reduced. The estimated values are compared with other theoretical models, Universal curve (UNIV), Universal Decay law (UDL) and the scaling law of Horoi. The odd-even staggering (OES) effect is observed in the emission of odd mass clusters. An intriguing aspect of the study is the effect of the magicity at N = 184 which is confirmed from the plot of log(10)T(1/2) against the neutron number of the daughter nuclei. Almost all the predicted half lives are favorable for experimental measurements. The Geiger-Nuttall (GN) plots and the Universal curve have been studied for various cluster emissions from various superheavy isotopes with Z = 125. Finally, the linearity of the GN plot and the Universal curve of the heavy particle emissions very well established the strength of CPPM.

• 出版日期2017-3