Sigma Exchange in the NN interaction within the chiral unitary approach
NAGIOS: RODERIC FUNCIONANDO

Sigma Exchange in the NN interaction within the chiral unitary approach

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Sigma Exchange in the NN interaction within the chiral unitary approach

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Oset Báguena, Eulogio Perfil; Toki, Hiroshi; Mizobe, Masato; Takahashi, Toru Tyr
This document is a artículoDate2000

Este documento está disponible también en : http://hdl.handle.net/10550/46834
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.

    Oset Báguena, Eulogio Toki, Hiroshi Mizobe, Masato Takahashi, Toru Tyr 2000 Sigma Exchange in the NN interaction within the chiral unitary approach Progress of Theoretical Physics 103 2 351 365
http://dx.doi.org/10.1143/PTP.103.351

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