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Dynamically Generated Resonances in Vector-Octet-Baryon Decuplet Interaction

This study explores resonances from vector octet-baryon decuplet interaction in the hidden gauge formalism. The formalism and results of radiative decays, interaction vertices, and anomalous terms are discussed, along with decay modes and coupling of resonances in different channels. The research suggests ten resonances in various strangeness and isospin channels with degenerate properties in JP, highlighting differences in radiative decay widths among charge states of the same resonance. Presented at IWND2009 in Shanghai.

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Dynamically Generated Resonances in Vector-Octet-Baryon Decuplet Interaction

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  1. Dynamically generated resonances from the vector octet-baryon decuplet interaction in the hidden gauge formalism Speaker: Bao-Xi Sun Institute of Theoretical Physics, Beijing University of Technology Collaborators: S. Sarkar, E.Oset and M. J. VicenteVacas 2009.08.24 IWND2009(Shanghai)

  2. 1. Formalism 2. Results 3. Radiative decay

  3. Vector-vector Interaction

  4. Interaction Vertex

  5. Anomalous Term

  6. Anomalous Term

  7. Bethe-Salpeter Eqution

  8. Vector meson – baryon loop function in the dimensional regularization scheme

  9. Vector meson-baryon loop function accounting for the width of the intermediate states

  10. Decay modes

  11. S=-1，I=0 Channel

  12. S=-1，I=0 Channel

  13. S=-1，I=1Channel

  14. Resonance for S=-1,I=1 channel

  15. 0902.3150[hep-ph]

  16. Radiative decay into γandΒD

  17. Decay width for radiative decay

  18. ρωφCouplings of resonances

  19. Decay widths 0903.5138[hep-ph]

  20. Conclusions • Ten resonances in the different strangeness and isospin channels. Degenerate in JP=1/2-, 3/2-, 5/2-. • Radiative widths are of the order of 1MeV. • Radiative decay widths are different about one order of magnitude between the widths for different charge states of the same resonance.

  21. Thanks

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