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The nucleon-nucleon interaction and properties of the nucleon in a $pirhoomega$ soliton model including a dilaton field with anomalous dimension

68   0   0.0 ( 0 )
 Added by Abdulla Rakhimov
 Publication date 1999
  fields
and research's language is English




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We investigate an extended chiral soliton model which includes $pi, rho, omega$ and $sigma $ mesons as explicit degrees of freedom. The Lagrangian incorporates chiral symmetry and broken scale invariance. A scalar-isoscalar meson $sigma$ is associated with a quarkonium dilaton field with a mass $msigapprox 550 $MeV. We show that the scalar field with anomalous dimension slightly changes the static and electromagnetic properties of the nucleon. In contrast, it plays a significant role in nucleon-nucleon dynamics and gives an opportunity to describe well the two-nucleon interaction.



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