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28 March 2024
 
  » arxiv » 0808.2176

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Resonance parameters from K-matrix and T-matrix poles
R.L. Workman ; R.A. Arndt ;
Date 15 Aug 2008
AbstractWe extract K-matrix poles from our fits to elastic pion-nucleon scattering and eta-nucleon production data in order to test a recently proposed method for the determination of resonance properties, based on the trace of the K-matrix. We have considered issues associated with the separation of background and resonance contributions, the correspondence between K-matrix and T-matrix poles, and the complicated behavior of eigenphases.
Source arXiv, 0808.2176
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