English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/108615
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

The width of the omega meson in the nuclear medium

AutorRamos, Àngels; Tolós, Laura; Molina, Raquel ; Oset, Eulogi
Palabras claveHeavy-Ion Collisions
Chiral Perturbation-Theory
Hidden Local Symmetry
Fecha de publicación26-nov-2013
EditorSpringer
CitaciónEuropean Physical Journal A (49);11 (2013)
ResumenWe evaluate the width of the omega meson in nuclear matter. We consider the free decay mode of the omega into three pions, which is dominated by rho IEuro decay, and replace the rho and pi propagators by their medium-modified ones. We also take into account the quasielastic and inelastic processes induced by a vector-baryon interaction dominated by vector meson exchange, as well as the contributions coming from the mechanism with medium-modified K , propagators. We obtain a substantial increase of the omega width in the medium, reaching a value of 121 +/- 10 MeV at normal nuclear matter density for an omega at rest, which comes mainly from omega N -> pi pi N, omega NN -> pi NN processes associated to the dominant omega -> rho IEuro decay mode. The value of the width increases moderately with momentum, reaching values of around 200MeV at 600MeV/c.
Versión del editorhttp://dx.doi.org/10.1140/epja/i2013-13148-x
URIhttp://hdl.handle.net/10261/108615
DOI10.1140/epja/i2013-13148-x
ISSN1434-6001
E-ISSN1434-601X
Aparece en las colecciones: (IFIC) Artículos
(ICE) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
The width.pdf377,13 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


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