English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/9061
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:

Study of the pd -> pdη reaction

AutorUpadhyay, N. J.; Khemchandani, Kanchan P.; Jain, B. K.; Kelkar, N. G.
Palabras claveFinal-state Interactions
Reaction Near-threshold
[PACS] Nuclear reactions involving few-nucleon systems
[PACS] Other nucleon-induced reactions above meson production thresholds (energies > 400 MeV)
[PACS] Coupled-channel and distorted-wave models of nuclei
Fecha de publicación14-may-2007
EditorAmerican Physical Society
CitaciónPhysical Review C 75: 054002 (2007)
ResumenA study of the pd -> pdη reaction in the energy range where the recent data from Uppsala are available is done in the two-step model of eta production including the final state interaction. The η-d final state interaction is incorporated through the solution of the Lippmann Schwinger equation using an elastic scattering matrix element, T-ηd->ηd, which is required to be half off-shell. It is written in a factorized form, with an off-shell form factor multiplying an on-shell part given by an effective range expansion up to the fourth power in momentum. The parameters of this expansion have been taken from an existing recent relativistic Faddeev equation solution for the ηNN system corresponding to different η-N scattering amplitudes. Calculations have also been done using few body equations within a finite rank approximation to generate T-ηd->ηd. The p-d final state interaction is included in the spirit of the Watson-Migdal prescription by multiplying the matrix element by the inverse of the Jost function. The η-d interaction is found to be dominant in the region of small invariant η-d mass, M-ηd. The p-d interaction enhances the cross section in the whole region of M-ηd, but is larger for large M-ηd. We find nearly isotropic angular distributions of the proton and the deuteron in the final state. All the above observations are in agreement with the data. The production mechanism for the entire range of the existing data on the pd -> pdη reaction seems to be dominated by the two-step model of η production.
Descripción9 pages, 10 figures.-- PACS nrs.: 25.10.+s; 25.40.Ve; 24.10.Eq.-- ISI Article Identifier: 000246891100009.-- ArXiv pre-print available at: http://arxiv.org/abs/0704.1530
Versión del editorhttp://dx.doi.org/10.1103/PhysRevC.75.054002
Aparece en las colecciones: (IFIC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Study_pd_reaction.pdf313,35 kBAdobe PDFVista previa
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.