Navegação Ciências Exatas e da Terra por Autor "Thomas, A.W."

Resultados 1-5 de 5

    • Kaon-nucleon scattering in an extended cloudy bag model 

      Veit, Eliane Angela; Jennings, B.K.; Barrett, R.C.; Thomas, A.W. (1984) [Artigo de periódico]
      We describe low-energy kaon-nucleon scattering by generalizing the cloudy bag model (CBM) to SU(3) chiral symmetry. We restrict our attention to I = 0, s-wave scattering. We obtain a reasonable fit to both the Zn cross ...

    • Kn scattering in the cloudy bag model : s, p and d waves 

      Veit, Eliane Angela; Thomas, A.W.; Jennings, B.K. (1985) [Artigo de periódico]
      s-, p-, and d-wave KN phase shifts are calculated with the cloudy bag model (CBM). The results are in qualitative agreement with phase-shift analysis, except in those partial waves where exotic resonances are claimed to ...

    • Pion-nucleon scattering in the cloudy bag model 

      Veit, Eliane Angela; Jennings, B.K.; Thomas, A.W. (1986) [Artigo de periódico]
      We investigate s- and p-wave pion-nucleon scattering in the volume-coupling version of the cloudy bag model. The earlier conclusions about the nature of the ∆{1232),based on surface coupling, are not altered. This model ...

    • Pion-nucleon scattering lengths in the cloudy bag model 

      Jennings, B.K.; Veit, Eliane Angela; Thomas, A.W. (1984) [Artigo de periódico]
      We re-examine pion-nucleon s-wave scattering in the volume coupling version of the CBM. If the effects of multiple scattering are taken into account, one needs some phenomenological repulsive interaction in order to reproduce ...

    • S-wave meson-nucleon scattering in an su(3) cloudy bag model 

      Veit, Eliane Angela; Jennings, B.K.; Thomas, A.W.; Barrett, R.C. (1985) [Artigo de periódico]
      The cloudy bag model (CBM) is extended to incorporate chiral SU(3)XSU(3) symmetry, in order to describe 5-wave KN and KN scattering. In spite of the large mass of the kaon, the model yields reasonable results once the ...