Nucleon resonances with hidden charm in coupled-channels models
Abstract
The model dependence of the predictions of nucleon resonances with hidden charm is investigated. We consider several coupled-channel models which are derived from relativistic quantum field theory by using (1) a unitary transformation method and (2) the three-dimensional reductions of the Bethe-Salpeter equation. With the same vector-meson exchange mechanism, we find that all models give very narrow molecularlike nucleon resonances with hidden charm in the mass range of 4.3 <MR< 4.5 GeV, consistent with the previous predictions.
- Publication:
-
Physical Review C
- Pub Date:
- April 2012
- DOI:
- arXiv:
- arXiv:1202.1036
- Bibcode:
- 2012PhRvC..85d4002W
- Keywords:
-
- 14.20.Gk;
- 13.30.Eg;
- 13.75.Jz;
- 24.85.+p;
- Baryon resonances with S=0;
- Hadronic decays;
- Kaon-baryon interactions;
- Quarks gluons and QCD in nuclei and nuclear processes;
- Nuclear Theory
- E-Print:
- 17 pages, 3 figures