Quantum tunneling in ^{277}112 and its alpha-decay chain

TL;DR

This paper calculates alpha-decay half lives of element 277112 and its decay chain using quantum tunneling models, comparing theoretical predictions with experimental data, highlighting the need for improved mass formulas and more experimental data.

Contribution

It introduces a comparative analysis of decay half lives using different Q-value sources within a quantum tunneling framework for superheavy elements.

Findings

Theoretical half lives agree with experimental data from RIKEN and GSI.

Discrepancies suggest the need for better nuclear mass formulas.

Highlights importance of experimental data with higher statistics.

Abstract

The $\alpha$-decay half lives of nuclei in the decay from element $^{277}112$ are calculated in a WKB framework using DDM3Y interaction and experimental Q-values. Theoretical estimation of half lives in the same quantum tunneling model, using Q-values from the mass formula of Muntian-Hofmann-Patyk-Sobiczewski, are also presented. Calculated results furnish corroborating evidence for the experimental findings at RIKEN and GSI. Certain discrepancies indicate necessity of a better mass formula. Further experimental data with higher statistics would also be useful.