  A role of \beta-delayed neutron emission and fission in r-process
nucleosynthesis attracts a high interest. Although the number of study on them
covering r-process nuclei is increasing recently, uncertainties of
\beta-delayed neutron and fission are still large for r-process simulations.
Our purpose is to make a new database on \beta-delayed neutron emission and
fission rates. To this end, the data that are not investigated experimentally
have to be predicted. Microscopic theoretical approaches based on a nuclear
energy density functional and statistical models are one of the competent tools
for the prediction. To obtain \beta strength function, p-n relativistic QRPA is
adopted. Particle evaporations and fission from nuclear highly excited states
are estimated by the Hauser-Feshbach statistical model. \beta-delayed neutron
branching ratios (P_n) are calculated and compared with experimental data.
\beta-delayed fission branching ratio (P_f) are also assessed by using four
different fission barrier data. Calculated P_n values are in a good agreement
with experimental data. It is found that energy withdrawal by \beta-delayed
neutron emission sensitively varies P_n values for nuclei near the neutron drip
line. P_f are sensitively dependent on fission barrier data. Newly calculated
data on \beta-delayed neutron emission and fission are summarized as a table in
supplement material. They are provided for studies of r-process as well as
other fields such as nuclear engineering.
