PANN: Partial-wave analysis of nucleon–nucleon scattering in wide-energy region Original Research Article

PANN is a partial-wave analysis program which can be used to determine the complex scattering amplitudes of elastic nucleon–nucleon scattering by fitting the experimental data on many kinds of observables. It is able to apply for an analysis in the wide energy region such as a few MeV ∼ 10 GeV. In PANN, the higher partial-wave amplitudes for the analysis in the low energy region ( < 1 GeV) are given by the one-pion exchange amplitude, and the ones in the high-energy region of several GeV are evaluated by the modified one-boson exchange amplitudes which is equivalent to Veneziano amplitudes.