Theoretical study of the NN -> NN pi pi reaction
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Theoretical study of the NN -> NN pi pi reaction

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Theoretical study of the NN -> NN pi pi reaction

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Álvarez Ruso, Luis; Oset Báguena, Eulogio Perfil; Hernández Gajate, Eliecer
Aquest document és un/a article, creat/da en: 1998
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 recently found experimentally, 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. A rough agreement with the experimental data is obtained in most channels. Repercussions of the present findings for the ABC effect and the p p --> p p pi0 reaction close to threshold are also suggested.

    Álvarez Ruso, Luis Oset Báguena, Eulogio Hernández Gajate, Eliecer 1998 Theoretical study of the NN -> NN pi pi reaction Nuclear Physics A 633 3 519 543
http://dx.doi.org/10.1016/S0375-9474(98)00126-2
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