The Δ mass dependence of the Mmatrix and its influence on the cross-sections * * Supported by National Key R&D Program of China (2018 YFA0404404), National Natural Science Foundation of China (11875323, 11875125, 11475262, 11365004, 11375062, 11790323, 11790324, 11790325, 11961141003) and the Continuous Basic Scientific Research Project (WDJC-2019-13)

Abstract

The mass dependence of the Mmatrix and its influence on the cross-sections are investigated in the one-boson exchange model. Our calculations show that the mass dependence of the momentum of the outgoing and the M matrix affects the calculations of , especially around the threshold energy.