Constraining neutrino mass with the tomographic weak lensing one-point probability distribution function and power spectrum

The one-point probability distribution function (PDF) of weak lensing, which provides access to non-Gaussian information beyond the power spectrum, is particularly sensitive to nonlinear growth at small scales, precisely where massive neutrinos contribute significantly. The authors therefore use the PDF, for the first time, with the express purpose of tightening the bounds on the neutrino mass sum.