Partial-wave analysis of pion photoproduction

Abstract

An energy-dependent partial-wave analysis of pion photoproduction data through the second-resonance region (0–1 GeV laboratory kinetic energy) is presented. A set of energy-independent analyses has also been obtained starting from the energy-dependent solution. The data set contains 9074 data for the reactions γ+p→p+${\mathrm{\pi }}^0$, γ+p→n+${\mathrm{\pi }}^{+}$, γ+n→n+${\mathrm{\pi }}^0$, γ+n→p+${\mathrm{\pi }}^{\mathrm{-}}$, and the inverse reaction ${\mathrm{\pi }}^{\mathrm{-}}$+p→n+γ (converted to γ+n→p+${\mathrm{\pi }}^{\mathrm{-}}$). The predictions of our solutions are compared with the results of previous analyses. Suggestions are made for future experiments.