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Oset Báguena, Eulogio; Toki, Hiroshi; Mizobe, Masato; Takahashi, Toru Tyr | |||
Aquest document és un/a article, creat/da en: 2000 | |||
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We study the nucleon-nucleon interaction in the isoscalar-scalar channel using t he chiral unitary approach. The t-matrix of the pion-pion scattering in this c hannel is summed up to all orders using the B-S equation. We find that the calcu lated results at long distances are close to those of the σ-exchange inte raction. In addition, there appears a shorter range repulsion in this channel. | |||
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