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has been cited by the following article:

• TITLE: Two Pion versus σ-Meson Exchange Potentials

  AUTHORS: Sachiko Oshima, Takehisa Fujita, Naohiro Kanda, Akihiro Yoshimi

  KEYWORDS: Nucleon-Nucleon Interactions, Nuclear Forces

  JOURNAL NAME: Journal of Modern Physics, Vol.6 No.7, June 25, 2015

  ABSTRACT: The two pion exchange potentials are evaluated by carrying out the numerical integrations of three Feynman parameters in the corresponding Feynman diagrams. The two pion exchange potentials give rise to the attractive force which is quite similar to the effective scalar meson with its mass of ms≃4.7mπ and its strength of at T = 0 channel. However, there is a strong isospin dependence of (t1·t2)2 which should be different from the phenomenological σ-meson exchange calculations. Therefore, the medium range attraction of the T = 0 nuclear interaction should be due to the two pion exchange processes, but the T = 1 channel is still an open problem.