Global description of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>β</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>decay in even-even nuclei with the axially-deformed Skyrme finite-amplitude method

Abstract

$\ensuremath{\beta}$-decay rates are an important ingredient in simulations of the astrophysical $r$ process, but parts of the $r$-process path are still not accessible to experiment. The authors develop a computationally efficient method that provides Skyrme-QRPA $\ensuremath{\beta}$-transition strengths for essentially all even-even nuclei, both spherical and deformed, between the valley of stability and the neutron drip line. The results will be important for global nucleosynthesis calculations.