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INSIGHTS INTO THE π^-p → ηn REACTION MECHANISM

Institut de Recherche sur les lois Fondamentales de l'Univers, DSM/IRFU, CEA/Saclay, F-91191 Gif-sur-Yvette, France

Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Universitat de Barcelona, E-08028 Barcelona, Spain

Excited Baryon Analysis Center (EBAC), Thomas Jefferson National Accelerator Facility, Newport News, Virginia 22901, USA

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T.-S. H. LEE

Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

Excited Baryon Analysis Center (EBAC), Thomas Jefferson National Accelerator Facility, Newport News, Virginia 22901, USA

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B. SAGHAI

Institut de Recherche sur les lois Fondamentales de l'Univers, DSM/IRFU, CEA/Saclay, F-91191 Gif-sur-Yvette, France

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T. SATO

Department of Physics, Osaka University, Toyonaka, Osaka 560 0043, Japan

Excited Baryon Analysis Center (EBAC), Thomas Jefferson National Accelerator Facility, Newport News, Virginia 22901, USA

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https://doi.org/10.1142/S0217751X0904405XCited by:3 (Source: Crossref)

Abstract

A dynamical coupled channels formalism is used to investigate the η–meson production mechanism on the proton induced by pions, in the total center-of-mass energy region from threshold up to 2 GeV. We show how and why studying exclusively total cross section data might turn out to be misleading in pinning down the reaction mechanism.

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