Determination of neutrino masses from future observations of CMB B-mode
  polarization and the growth of structure
  Constraints on neutrino masses are estimated based on future observations of
the cosmic microwave background (CMB) including the B-mode polarization
produced by CMB lensing using the Planck satellite, and baryon acoustic
oscillations distance scale and the galaxy power spectrum from all-sky galaxy
redshift survey in the BigBOSS experiment. We estimate the error in the bound
on the total neutrino mass to be $\Delta\sum m_{\nu} = 0.012$ eV with a 68%
confidence level. If the fiducial value of the total neutrino mass is $\sum
m_{\nu}= 0.06$ eV, this result implies that the neutrino mass hierarchy must be
normal.
