Mass predictions of superheavy nuclei from the systematics of $\alpha$-Decay Energies

Abstract

A recent proposed method for $\alpha$-decay energies ($Q_{\alpha }$) [J.M. Dong, W. Zuo, and W. Scheid, Phys. Rev. Lett. \textbf{107}, 012501 (2011)] can reproduce experimental data of superheavy nuclei (SHN) with an $rms$-value of less than 100 keV. However, a sinusoid-like periodic deviation from experiments, which limits the accuracy in predictions, is observed when using different reference nuclei. In this paper, we have further extended this hybrid method, i.e., to predict $Q_{\alpha }$ of the as-yet-unobserved SHN with the help of known nuclei. It is found that the systematic deviation in previous study is rooted in the nuclear mass model employed. By further analyzing the source of errors, different nuclear mass models are evaluated based on the same procedure.

9 pages, 3 figures

References in corpus (7)

• Further improvements on a global nuclear mass model
• alpha decay half-lives of new superheavy nuclei within a generalized liquid drop model
• Recent $\alpha$ decay half-lives and analytic expression predictions including superheavy nuclei
• Predictions of Alpha Decay Half lives of Heavy and Superheavy Elements
• Search for long lived heaviest nuclei beyond the valley of stability
• Alpha-decay half-lives and Q_alpha values of superheavy nuclei
• $\alpha$-Decay Lifetime in Superheavy Nuclei With $A>282$

Cited by in corpus (3)

• Improved radial basis function approach with the odd-even corrections
• Toward precision mass measurements of neutron-rich nuclei relevant to $r$-process nucleosynthesis
• Correlating charge radius with quadrupole deformation and $B(E2)$ in atomic nuclei