English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/9106
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 29 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

ΛNN and ΣNN systems at threshold

Autor Garcilazo, H.; Fernández Caramés, Teresa; Valcarce, A.
Palabras clave Nuclear binding energy
Hypernuclei
Tritons
Quark models
Chiral symmetries
Hyperon-deuteron scattering
Nuclear forces
Hyperon-nucleon scattering
Fecha de publicación 12-mar-2007
EditorAmerican Physical Society
Citación Physical Review C 75(3): 034002 (2007)
ResumenWe calculate the hypertriton binding energy and the Λd and Σd scattering lengths using baryon-baryon interactions obtained from a chiral constituent quark model. We study consistently the ΛNN and ΣNN systems by analyzing the effect of the Σ <-> Λ conversion. Our interactions correctly predict the hypertriton binding energy. The (I,J)=(0,3/2) ΛNN channel is also attractive and it might have a bound state. From the condition of nonexistence of a (0,3/2) ΛNN bound state, an upper limit for the spin-triplet ΛN scattering length is obtained. We also present results for the elastic and inelastic ΣN and ΛN cross sections. The consistent description of the ΣN scattering cross sections imposes a lower limit for the corresponding spin-triplet scattering lengths. In the ΣNN system the only attractive channels are (I,J)=(1,1/2) and (0,1/2), the (1,1/2) state being the most attractive one.
Descripción 10 pages, 6 figures.-- PACS nrs.: 13.75.Ev; 12.39.Jh; 21.45.+v.-- ISI Article Identifier: 000245332200008.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0701275
See also: "ΛNN and ΣNN systems at threshold. II. The effect of D waves", http://digital.csic.es/handle/10261/9101
Versión del editorhttp://dx.doi.org/10.1103/PhysRevC.75.034002
URI http://hdl.handle.net/10261/9106
DOI10.1103/PhysRevC.75.034002
ISSN0556-2813
Aparece en las colecciones: (IFIC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Garcilazo_et_al_PRC75_034002.pdf247,13 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.