Neutral and charged pion production in the S-matrix approach

V. Malafaia; M. T. Pena; J. Adam Jr

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Neutral and charged pion production in the S-matrix approach

V. Malafaia·M. T. Pena·J. Adam Jr

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Abstract

The S-matrix approach is applied to charged and neutral pion production in pp collisions, in which the spin/isospin channels filter differently the rescattering mechanism. The chiral perturbation theory rescattering amplitude is employed. The contributions from the single-nucleon, Z-diagrams and Delta-isobar mechanisms are also included. For the reactions investigated, the convergence of the partial wave series is quite satisfactory and J=0 is enough to describe the data close to threshold.

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V. Malafaia, M. T. Pena, J. Adam Jr. 2005-07-04. Neutral and charged pion production in the S-matrix approach. https://arxiv.org/abs/nucl-th/0507007

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