<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> -delayed fission in the coupled quasiparticle random-phase approximation plus Hauser-Feshbach approach

Beta-delayed neutron emission and $\ensuremath{\beta}$-delayed fission ($\ensuremath{\beta}\mathrm{df}$) probabilities were calculated for heavy, neutron-rich nuclei using the Los Alamos coupled quasiparticle random-phase approximation plus Hauser-Feshbach ($\mathrm{QRPA}+\mathrm{HF}$) approach. In this model, compound nucleus is initially populated by $\ensuremath{\beta}$ decay followed through subsequent statistical decays taking into account competition among neutrons, $\ensuremath{\gamma}$ rays, fission. The primary output of these calculations includes branching ratios along with $\ensuremath{\gamma}$-ray spectra. We find a relatively large region heavy nuclides where probability $\ensuremath{\beta}\mathrm{df}$ near 100%. For subset drip line, delayed are both large, which leads to possibility multichance (mc-$\ensuremath{\beta}\mathrm{df}$). comment on prospective that could be probed future experimental campaigns provide full table in ASCII format Supplemental Material use various applications.