Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/130581
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | LHCb pentaquark as a (D)over-bar*Sigma(c) – (D)over-bar*Sigma(c)* molecular state |
Autor: | Roca, Luis; Nieves, Juan Miguel CSIC ORCID ; Oset, Eulogi CSIC ORCID | Palabras clave: | Hidden gauge approach Chiral dynamics Baryon states Resonances |
Fecha de publicación: | 2-nov-2015 | Editor: | American Physical Society | Citación: | Physical Review - Section D - Particles and Fields 92 (9): 094003 - 6 (2015) | Resumen: | We perform a theoretical analysis of the Lambda(b) -> J/psi K(-)p reaction from where a recent LHCb experiment extracts a Lambda(1405) contribution in the K(-)p spectrum close to threshold and two baryon states of hidden charm in the J/psi p spectrum. We recall that baryon states of this type have been theoretically predicted matching the mass, width and J(P) of the experiment; concretely some states built up from the J/psi N, (D) over bar*Lambda(c), (D) over bar*Sigma(c), (D) over bar Sigma(c)* and (D) over bar*Sigma(c)* coupled channels. We assume that the observed narrow state around 4450 MeV has this nature and we are able to describe simultaneously the shapes and relative strength of the the K(-)p mass distribution close to threshold and the peak of the J/psi p distribution, with values of the J/psi p coupling to the resonance in line with the theoretical ones. The nontrivial matching of many properties gives support to a J(P) = 3/2(-) assignment to this state and to its nature as a molecular state mostly made of (D) over bar*Sigma(c) and (D) over bar*Sigma(c)*. | Descripción: | 4 pages.- 2 figures | Versión del editor: | http://dx.doi.org/10.1103/PhysRevD.92.094003 | URI: | http://hdl.handle.net/10261/130581 | DOI: | 10.1103/PhysRevD.92.094003 | ISSN: | 1550-7998 | E-ISSN: | 1550-2368 |
Aparece en las colecciones: | (IFIC) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
FIS2014-51948-C2-1-P-The LHCb.pdf | 121,84 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
189
checked on 06-abr-2024
WEB OF SCIENCETM
Citations
196
checked on 27-feb-2024
Page view(s)
162
checked on 22-abr-2024
Download(s)
150
checked on 22-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.