nucl-th digest · Nov 6, 2020

Structural Properties and $α$ -Decay Chains of Transfermium Nuclei (101 $\leq$ Z $\leq$ 110)

U. K. Singh · R. Sharma · P. K. Sharma · M. Kaushik · S. K. Jain · G. Saxena

Transfermium nuclei (101 $\leq$ Z $\leq$ 110) are investigated thoroughly to describe structural properties viz. deformation, radii, shapes, magicity, etc. as well as their probable decay chains. These properties are explored using relativistic mean-field (RMF) approach and compared with other theories along with available experimental data. Neutron numbers N $=$ 152 and 162 have come forth with a deformed shell gap whereas N $=$ 184 is ensured as a spherical magic number. The region with N $>$ 168 bears witness of the phenomenon of shape transition and shape coexistence for all the considered isotopic chains. Experimental $α$ -decay half-lives are compared with our theoretical half-lives obtained by using various empirical/semi-empirical formulas. The recent formula proposed by Manjunatha \textit{et al.}, which results best among the considered 10 formulas, is further modified by adding asymmetry dependent terms ( $I$ and $I^{2}$ ). This modified Manjunatha formula is utilized to predict probable $α$ -decay chains that are found in excellent agreement with available experimental data.

nucl-thNPA(2021)·13 citations

Folding model approach to the elastic

p +^{12, 13}

C scattering at low energies and radiative capture

^{12, 13}

(p, γ)

reactions

The proton radiative capture

^{12, 13}

(p, γ)

reactions at astrophysical energies, key processes in the CNO cycle, are revisited in the potential model with the proton-nucleus potential for both the scattering and bound states obtained in the folding model, using a realistic density dependent nucleon-nucleon interaction. For the consistency, this same folding model is also used to calculate the optical potential of the elastic

p +^{12, 13}

C scattering at energies around the Coulomb barrier. The folded

p +^{12, 13}

C optical potentials are shown to account well for both the elastic

p +^{12, 13}

C3 scattering and astrophysical

S

factors of the radiative capture

^{12, 13}

(p, γ)

reactions.

nucl-thnucl-exNPA(2021)·5 citations

Friday·November 6, 2020

Structural Properties and $α$ -Decay Chains of Transfermium Nuclei (101 $\leq$ Z $\leq$ 110)

Folding model approach to the elastic $p +^{12, 13}$ C scattering at low energies and radiative capture $^{12, 13}$ C $(p, γ)$ reactions

Affiliations

Structural Properties and α-Decay Chains of Transfermium Nuclei (101≤Z≤110)

Folding model approach to the elastic p+12,13C scattering at low energies and radiative capture 12,13C(p,γ) reactions

Affiliations

Structural Properties and $α$ -Decay Chains of Transfermium Nuclei (101 $\leq$ Z $\leq$ 110)

Folding model approach to the elastic $p +^{12, 13}$ C scattering at low energies and radiative capture $^{12, 13}$ C $(p, γ)$ reactions