English

Magnetic moments of the Lambda(1405) and Lambda(1670) resonances

High Energy Physics - Phenomenology 2011-07-18 v1 Nuclear Theory

Abstract

By using techniques of unitarized chiral perturbation theory, where the Λ(1405)\Lambda(1405) and Λ(1670)\Lambda(1670) resonances are dynamically generated, we evaluate the magnetic moments of these resonances and their transition magnetic moment. The results obtained here differ appreciably from those obtained with existing quark models. The width for the Λ(1670)Λ(1405)γ\Lambda(1670) \to \Lambda(1405) \gamma transition is also evaluated leading to a branching ratio of the order of 2×1062 \times 10^{-6}.

Keywords

Cite

@article{arxiv.hep-ph/0203248,
  title  = {Magnetic moments of the Lambda(1405) and Lambda(1670) resonances},
  author = {D. Jido and A. Hosaka and J. C. Nacher and E. Oset and A. Ramos},
  journal= {arXiv preprint arXiv:hep-ph/0203248},
  year   = {2011}
}

Comments

19 pags., 8 figs