ABFST Model with Veneziano Amplitudes for pi pi and pi p Scattering Applied to the Reaction pi ⁺po 3pi ⁺2pi ^-p at 8 GeV/c

摘要

The ABFST model with dual amplitudes taken to describe the off-mass shell pi pi and pi p scattering is applied to the reaction pi ⁺po 3pi ⁺2pi ^-p at 8 GeV/c. Previously the same process was studied in the framework of the ABFST model with pi pi and pi p phase shifts and the Dürr–Pilkuhn off-shell extrapolation. However this extrapolation is known to disagree with the existing data on the off-mass shell pi pi scattering. By comparing the results of both calculations we study the dependence of the ABFST model description on a particular method of the off-mass shell extrapolation. We also compare the predictions of our model with experimental data using the Van Hove longitudinal phase-space method.