Two Pion Production in Nucleon-Nucleon Collisions at Intermediate Energies
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We have developed a model for the N N --> N N pi pi reaction and evaluated cross sections for the different charged channels. The low energy part of those channels where the pions can be in an isospin zero state is dominated by N* excitation, driven by an isoscalar source followed by the decay N* --> N (pi pi, T=0, s-wave). At higher energies, and in channels where the pions are not in T=0, Delta excitation mechanisms become relevant.
5 pages, 5 eps figures. Talk presented at Mesons and Light Nuclei, Aug. 31 - Sept. 4, 1998, Pruhonice (Prague), Czech Republic
5 pages, 5 eps figures. Talk presented at Mesons and Light Nuclei, Aug. 31 - Sept. 4, 1998, Pruhonice (Prague), Czech Republic