  We have carried out photodisintegration cross-section measurements on 86Kr
using monoenergetic photon beams ranging from the neutron separation energy,
S_n = 9.86 MeV, to 13 MeV. We combine our experimental 86Kr(g,n)85Kr cross
section with results from our recent 86Kr(g,g') measurement below the neutron
separation energy to obtain the complete nuclear dipole response of 86Kr. The
new experimental information is used to predict the neutron capture cross
section of 85Kr, an important branching point nucleus on the abundance flow
path during s-process nucleosynthesis. Our new and more precise 85Kr(n,g)86Kr
cross section allows to produce more precise predictions of the 86Kr abundance
from s-process models. In particular, we find that the models of the s-process
in asymptotic giant branch stars of mass < 1.5 Msun, where the 13C neutron
source burns convectively rather than radiatively, represent a possible
solution for the highest 86Kr/82Kr ratios observed in meteoritic stardust SiC
grains.
