Extended Data Fig. 11: Effect of different treatments of mν on the exclusion contour.
From: Sterile-neutrino search based on 259 days of KATRIN data
a) 95% C.L. exclusion contour of KNM1-5 including statistical and systematic uncertainties with active-neutrino mass fixed to 0 eV2 and left unconstrained in the analysis. The colour map describes the best-fit active-neutrino mass values. b) 95% exclusion contour of KNM1-5 including statistical uncertainties and different scenarios for the treatment of the active-neutrino mass.
