Dynamically generated resonances from the vector octet-baryon octet interaction

We study the interaction of vector mesons with the octet of stable baryons in the framework of the local hidden gauge formalism using a coupled channels unitary approach. We examine the scattering amplitudes and their poles, which can be associated to known J P = 1/2- , 3/2- baryon resonances, in so...

Full description

Bibliographic Details
Authors: Oset Baguena, Eulogio, Ramos Gómez, Àngels
Format: article
Status:Versión aceptada para publicación
Publication Date:2010
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/21044
Online Access:https://hdl.handle.net/2445/21044
Access Level:Open access
Keyword:Mesons (Física nuclear)
Barions
Interaccions febles (Física nuclear)
Baryons
Mesons (Nuclear physics)
Weak interactions (Nuclear physics)
Projecte 227431
Description
Summary:We study the interaction of vector mesons with the octet of stable baryons in the framework of the local hidden gauge formalism using a coupled channels unitary approach. We examine the scattering amplitudes and their poles, which can be associated to known J P = 1/2- , 3/2- baryon resonances, in some cases, or give predictions in other ones. The formalism employed produces doublets of degenerate J P = 1/2- , 3/2- states, a pattern which is observed experimentally in several cases. The findings of this work should also be useful to guide present experimental programs searching for new resonances, in particular in the strange sector where the current information is very poor.