The nuclear ground state properties of even-even^(106-120)Zr nuclei have been investigated within the framework of the relativistic mean field(RMF)approach.The RMF model with density-dependent DDME2 and DDPC1 interact...The nuclear ground state properties of even-even^(106-120)Zr nuclei have been investigated within the framework of the relativistic mean field(RMF)approach.The RMF model with density-dependent DDME2 and DDPC1 interactions is utilized for the calculation of potential energy curves,the nuclear ground-state deformation parameters(β_(2)),neutron separation energies(S_(n)and S_(2n))and neutron skin thickness(rnp)of selected Zr isotopes.Later,theβ-decay properties of Zr isotopes were studied using the proton-neutron quasi-particle random phase approximation(pn-QRPA)model.These include Gamow-Teller strength distributions,β-decay half-lives and stellar electron emission/positron capture rates.Theβ2 values computed from the RMF model were employed in the pn-QRPA model as an input parameter for the calculations ofβ-decay properties for even-even 106-120Zr nuclei.The stellar rates were computed using the pn-QRPA framework with three different types of deformation parameters.Only at high temperature(T_(9)≥2)and low density(ρYe≤10^(7)g cm^(−3))values,the sum of electron emission and positron capture rates has a sizeable contribution(with positive exponents)to the stellar rates.展开更多
基金funded by Taif University,Saudi Arabia,Project No.(TU-DSPP-2024-33).
文摘The nuclear ground state properties of even-even^(106-120)Zr nuclei have been investigated within the framework of the relativistic mean field(RMF)approach.The RMF model with density-dependent DDME2 and DDPC1 interactions is utilized for the calculation of potential energy curves,the nuclear ground-state deformation parameters(β_(2)),neutron separation energies(S_(n)and S_(2n))and neutron skin thickness(rnp)of selected Zr isotopes.Later,theβ-decay properties of Zr isotopes were studied using the proton-neutron quasi-particle random phase approximation(pn-QRPA)model.These include Gamow-Teller strength distributions,β-decay half-lives and stellar electron emission/positron capture rates.Theβ2 values computed from the RMF model were employed in the pn-QRPA model as an input parameter for the calculations ofβ-decay properties for even-even 106-120Zr nuclei.The stellar rates were computed using the pn-QRPA framework with three different types of deformation parameters.Only at high temperature(T_(9)≥2)and low density(ρYe≤10^(7)g cm^(−3))values,the sum of electron emission and positron capture rates has a sizeable contribution(with positive exponents)to the stellar rates.
