## Abstract

We propose a consistent expression for the relativistic quadri-force referring to the classical interaction between a coloured particle and a scalar field multiplete. General aspects of the resultant equations of motion are discussed as well as a specialisation to the case of a SU 2 particle in the presence of a soliton configuration of the non-linear O 3 model with unit topological charge. Analytical studies regarding the stability and asymptotic behaviour of this system are made and extended to the case of arbitrary topological charge. Since the non-linear O 3 model describes an isotropic ferromagnet, we also investigate a possible physical interpretation of such a system.

Original language | English (US) |
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Journal | Proceedings of Science |

Volume | 13 |

State | Published - Jan 1 2004 |

Externally published | Yes |

Event | 4th International Winter Conference on Mathematical Methods in Physics, WC 2004 - Rio de Janeiro, Brazil Duration: Aug 9 2004 → Aug 13 2004 |