Exploring the dark matter inelastic frontier with 79.6 days of PandaX-II
  data
  We report here the results of searching for inelastic scattering of dark
matter (initial and final state dark matter particles differ by a small mass
splitting) with nucleon with the first 79.6-day of PandaX-II data (Run 9). We
set the upper limits for the spin independent WIMP-nucleon scattering cross
section up to a mass splitting of 300 keV/c$^2$ at two benchmark dark matter
masses of 1 and 10 TeV/c$^2$.
