We investigate first the structure of the nucleon resonance;N*(1440) (Roper) within a meson exchange model which couples the piN and etaN reaction channels effectively to pi piN states bu introducing: explicit sigmaN, pi Delta and rhoN channels. Second, we discuss the non-q/barq nature of the f(0)(980) meson. [References: 12]
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机译：我们首先研究介子交换模型中核子共振的结构; N *（1440）（Roper），该模型将piN和etaN反应通道有效耦合到pi piN状态，并引入了pi显式sigmaN，pi Delta和rhoN通道。其次，我们讨论f（0）（980）介子的非q / barq性质。 [参考：12]
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