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Scalar-meson production in nucleon-nucleon collisions near threshold

  • M. P. Rekalo
  • E. Tomasi-Gustafsson
Article

Abstract.

We establish the model-independent spin structure of the matrix elements for the near-threshold scalar-meson production in pp and np collisions, when the final particles are emitted in S-state. Polarization phenomena are derived in a general form. The properties of the t-channel dynamics, which is based on different meson exchanges, are studied in terms of the s-channel parametrization of the matrix element. The predictions of a model, based on \(\pi + \sigma\) exchanges are also presented.

Keywords

Matrix Element Final Particle Spin Structure Meson Exchange Polarization Phenomenon 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.Physics DepartmentMiddle East Technical UniversityAnkaraTurkey
  2. 2.DAPNIA/SPhN, CEA/SaclayGif-sur-Yvette CedexFrance

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