Sterile neutrino fits to short baseline data

Neutrino oscillation models involving extra mass eigenstates beyond the standard three (3+N3+N) are fit to global short baseline experimental data. We find that 3+13+1 has a best fit of Δm412=1.75 eV2 with a Δχnull-min2 (dof) of 52.34 (3). The 3+23+2 fit has a Δχnull-min2 (dof) of 56.99 (7). For the first time, we show Bayesian credible intervals for a 3+13+1 model. These are found to be in agreement with frequentist intervals. The results of these new fits favor a higher Δm2Δm2 value than previous studies, which may have an impact on future sterile neutrino searches such as the Fermilab SBN program.