Non-perturbative chiral approach to s-wave (K)over-barN interactions
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Non-perturbative chiral approach to s-wave (K)over-barN interactions

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Non-perturbative chiral approach to s-wave (K)over-barN interactions

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Oset Báguena, Eulogio Perfil; Ramos Gómez, Àngels
Aquest document és un/a article, creat/da en: 1998
The s-wave meson-nucleon interaction in the S=−1 sector is studied by means of coupled-channel Lippmann Schwinger equations, using the lowest order chiral Lagrangian and a cut off to regularize the loop integrals. The method reproduces succesfully the Λ(1405) resonance and the K−p→K−p,K¯0n,π0Λ,π0Σ,π+Σ−,π−Σ+ cross sections at low energies. The inclusion of the ηΛ,ηΣ0 channels in the coupled system is found very important and allows a solution in terms of only the lowest order Lagrangian.

    Oset Báguena, Eulogio Ramos Gómez, Àngels 1998 Non-perturbative chiral approach to s-wave (K)over-barN interactions Nuclear Physics A 635 1-2 99 120
http://dx.doi.org/10.1016/S0375-9474(98)00170-5
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