Motion of a particle with isospin in the presence of a monopole

Rafael M. Fernandes, Patricio S. Letelier

Research output: Contribution to journalArticlepeer-review


From a consistent expression for the quadriforce describing the interaction between a colored particle and gauge fields, we investigate the relativistic motion of a particle with isospin interacting with a BPS monopole and with a Julia-Zee dyon. The analysis of such systems reveals the existence of unidimensional unbounded motion and asymptotic trajectories restricted to conical surfaces, which resembles the equivalent case of electromagnetism.

Original languageEnglish (US)
Pages (from-to)22-32
Number of pages11
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number1-4
StatePublished - Jun 20 2005

Bibliographical note

Funding Information:
The authors would like to acknowledge FAPESP and CNPQ for financial support.


  • Gauge fields
  • Isospin
  • Orbits


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