Coupled-channels study of the πpηn process

J. Durand, B. Juliá-Díaz, T.-S. H. Lee, B. Saghai, and T. Sato
Phys. Rev. C 78, 025204 – Published 6 August 2008

Abstract

The reaction πpηn is investigated within a dynamical coupled-channels model of meson production reactions in the nucleon resonance region. The meson baryon channels included are πN,ηN,πΔ,σN, and ρN. The nonresonant meson-baryon interactions of the model are derived from a set of Lagrangians by using a unitary transformation method. One or two excited nucleon states in each of S,P,D, and F partial waves are included to generate the resonant amplitudes. Data of the πpηn reaction from threshold up to a total center-of-mass energy of about 2 GeV are satisfactorily reproduced and the roles played by the following nine nucleon resonances are investigated: S11(1535),S11(1650),P11(1440),P11(1710),P13(1720),D13(1520),D13(1700),D15(1675), and F15(1680). The reaction mechanism and the predicted ηN scattering length are discussed.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
5 More
  • Received 22 April 2008

DOI:https://doi.org/10.1103/PhysRevC.78.025204

©2008 American Physical Society

Authors & Affiliations

J. Durand1, B. Juliá-Díaz2,3, T.-S. H. Lee3,4, B. Saghai1, and T. Sato3,5

  • 1Institut de Recherche sur les lois Fondamentales de l'Univers, DSM/IRFU, CEA/Saclay, F-91191 Gif-sur-Yvette, France
  • 2Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Universitat de Barcelona, E-08028 Barcelona, Spain
  • 3Excited Baryon Analysis Center (EBAC), Thomas Jefferson National Accelerator Facility, Newport News, Virginia 22901, USA
  • 4Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 5Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 78, Iss. 2 — August 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×