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Extraction of resonance parameters from meson production reaction

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2009 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd
, , Citation T. Sato et al 2009 Chinese Phys. C 33 1140 DOI 10.1088/1674-1137/33/12/015

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Author e-mails

tsato@phys.sci.osaka-u.ac.jp

suzuki@kern.phys.sci.osaka-u.ac.jp

lee@anl.gov

Author affiliations

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

2 Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA

3 Excited Baryon Analysis Center(EBAC), Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA

Dates

  1. Received 7 August 2009
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Abstract

We have developed an analytic continuation method for extracting parameters of nucleon resonances within a Hamiltonian formulation of meson-nucleon reactions. The method was tested for simple solvable models and then applied for our recent coupled channels model (πN, ηN, πΔ, σN, and σN) of the πN and γ*N reactions. The resonance pole positions and their properties are studied for P33 and P11 channels.

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