Structure of the Lambda(1405) baryon resonance from its large Nc behavior
| dc.creator | Hyodo, Tetsuo | |
| dc.creator | Jido, Daisuke | |
| dc.creator | Roca, Luis | |
| dc.date | 2007-12-20 | |
| dc.date | 2008-03-30 | |
| dc.date.accessioned | 2026-07-07T11:13:51Z | |
| dc.date.available | 2026-07-07T11:13:51Z | |
| dc.description | We study the behavior with the number of colors (Nc) of the two poles associated to the Lambda(1405) resonance obtained dynamically within the chiral unitary approach. The leading order chiral meson-baryon interaction manifests a nontrivial Nc dependence for SU(3) baryons, which gives a finite attractive interaction in some channels in the large Nc limit. As a consequence, the SU(3) singlet (Kbar N) component of the Lambda(1405) survives in the large Nc limit as a bound state, while the other components dissolve into the continuum. The Nc dependence of the decay widths shows different behavior from the general counting rule for a qqq state, indicating the dynamical origin of the two poles for the Lambda(1405) resonance. | |
| dc.description | RevTeX4, 4 pages, 2 figures, title changed, final version to appear in Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/0712.3347 | |
| dc.identifier | http://arxiv.org/abs/0712.3347 | |
| dc.identifier | Phys.Rev.D77:056010,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.056010 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191862 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | Structure of the Lambda(1405) baryon resonance from its large Nc behavior | |
| dc.type | text |