Threshold pi- Photoproduction on the Neutron near Threshold

Recent data from the PIONS@MAX-lab Collaboration, measuring the total cross sections of the pion incoherent photoproduction gamma d--\textgreater pi-pp near threshold,~ have been used to determine the E0$+$ multipole and total cross sections of the reaction gamma n--\textgreater pi-p, also near threshold. These are the first measurements of the reaction gamma d--\textgreater pi-pp in the threshold region. The value of E0$+$ is extracted through a fit to the deuteron data in a photoproduction model accounting for final-state interactions. The model takes an S-wave approximation for the elementary reaction gamma n--\textgreater pi-p with E0$+ \quad =$ const in the threshold region.~ The obtained value E0$+ \quad =$ (-31.86$+$-0.8) x 10\textasciicircum -3/m\textunderscore pi$+$ is in agreement with other existing results. Model predictions for the total cross section are also given.