An explanation of the $Δ_{5/2^{-}}(1930)$ as a $ρΔ$ bound state
| dc.creator | Gonzalez, P. | |
| dc.creator | Oset, E. | |
| dc.creator | Vijande, J. | |
| dc.date | 2008-12-17 | |
| dc.date.accessioned | 2026-07-07T12:51:27Z | |
| dc.date.available | 2026-07-07T12:51:27Z | |
| dc.description | We use the $ρΔ$ interaction in the hidden gauge formalism to dynamically generate $N^{\ast}$ and $Δ^{\ast}$ resonances. We show, through a comparison of the results from this analysis and from a quark model study with data, that the $Δ_{5/2^{-}}(1930),$ $Δ_{3/2^{-}}(1940)$ and $Δ_{1/2^{-}}(1900)$ resonances can be assigned to $ρΔ$ bound states. More precisely the $Δ_{5/2^{-}}(1930)$ can be interpreted as a $ρΔ$ bound state whereas the $Δ_{3/2^{-}}(1940)$ and $Δ_{1/2^{-}}(1900)$ may contain an important $ρΔ$ component. This interpretation allows for a solution of a long-standing puzzle concerning the description of these resonances in constituent quark models. In addition we also obtain degenerate $J^{P}=1/2^{-},3/2^{-},5/2^{-}$ $N^{*}$ states but their assignment to experimental resonances is more uncertain. | |
| dc.description | 19 pags, 8 figs | |
| dc.identifier | https://arxiv.org/abs/0812.3368 | |
| dc.identifier | http://arxiv.org/abs/0812.3368 | |
| dc.identifier | Phys.Rev.C79:025209,2009 | |
| dc.identifier | doi:10.1103/PhysRevC.79.025209 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/222994 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | An explanation of the $Δ_{5/2^{-}}(1930)$ as a $ρΔ$ bound state | |
| dc.type | text |