A model for the γN → ππN reaction
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A model for the γN → ππN reaction

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A model for the γN → ππN reaction

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Gómez Tejedor, José Antonio; Oset Báguena, Eulogio Perfil
Aquest document és un/a article publicat, creat/da en: 1996
We have studied the γN → ππN reaction using a model wich includes N, Δ(1232), N*(1440) and N*(1520) intermediate baryonic states and the ρ-meson as a intermediate ππ resonance. The model reproduces fairly well experimental cross sections below Eγ=800 MeV and invariant-mass distributions even at higher energies. One of the interesting findings of study is what the γN → N*(1520) → Δπ process is very important and interferes strongly with the dominant Δ-Kroll-Ruderman term to produce the experimental peak of the kross section.

    GOMEZ TEJEDOR, J.A. ; Oset Baguena, Eulogio, 1996, A model for the γN → ππN reaction, Acta Physica Polonica B, vol. 27, no. 11, p. 3171-3175
http://th-www.if.uj.edu.pl/acta/vol27/pdf/v27p3171.pdf
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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