Measurements of the linear power spectrum of galaxies have placed tight constraints on neutrino masses .
We extend the framework of the halo model of cosmological nonlinear matter clustering to include the effect of massive neutrino infall into cold dark matter ( CDM ) halos .
The magnitude of the effect of neutrino clustering for three degenerate mass neutrinos with m _ { \nu _ { i } } = 0.9 eV is of order \sim 1 % , within the potential sensitivity of upcoming weak lensing surveys .
In order to use these measurements to further constrain—or eventually detect—neutrino masses , accurate theoretical predictions of the nonlinear power spectrum in the presence of massive neutrinos will be needed , likely only possible through high-resolution multiple particle ( neutrino , CDM and baryon ) simulations .