Structures of nuclei inα-decay chains of291,293117

Abstract

The quasi-particle structures of nuclei in the α-decay chains of 291,293 117 are studied with a modified two-center shell model. The calculated values of Q α are compared with available experimental data. The termination of the α-decay chain of 293 117 is explained.

Theoretical studies on structural properties and decay modes of $^{284-375}$119 isotopes

“…Moreover, the α−decay chain of 295 119 contains 291 Ts, 287 Mc, 283 Nh and 279 Rg elements whose α−decay chain is treated in Refs. [84,107] and a close agreement of our calculated Q α with the values predicted in these Refs. [84,107] is noticed.…”

“…[84,107] and a close agreement of our calculated Q α with the values predicted in these Refs. [84,107] is noticed. However, we did not mention the values of Q α predicted in Refs.…”

“…However, we did not mention the values of Q α predicted in Refs. [84,107] into the manuscript. The inference drawn from this investigations is that the nuclides 284−297 119 have the α−decay chain with the life-time of the order of micro-or nano-second and thus these nuclides might be observed in the laboratory through alpha decay.…”

Structure of superheavy nuclei

“…We use in our calculations the two-center shell model potential (TCSM) which is useful for the description of nuclear structure and reactions [1]. The parameters of the nuclear average mean field potential were set to describe the spins and parities of known rare earth, actinides and superheavy nuclei [2]. Weak dependence on (N-Z) was incorporated in the momentum dependent part of the single particle Hamiltonian.…”

Prediction of high-K isomeric states in transactinide nuclei close to N=162

“…The heaviest nuclei for which characteristic high-K isomeric decays have been investigated are 270 Ds and its α-decay daughter 266 Hs [10,11]. Theoretical studies of quasiparticle excitations in the region of transactinide nuclei have been based on the microscopic-macroscopic approach [12][13][14][15][16][17][18][19][20][21][22][23], self-consistent models with Skyrme functionals [24][25][26][27][28][29], the Gogny force [30][31][32], and relativistic energy density functionals [33][34][35][36][37][38].…”