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29 March 2024
 
  » arxiv » nucl-th/9807087

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Elastic scattering analyses and dispersion relation constraints
R.A. Arndt ; I.I. Strakovsky ; R.L. Workman ; M.M. Pavan ;
Date 31 Jul 1998
Subject nucl-th
AbstractWe present the results of energy-dependent and single-energy partial-wave analyses of pi-N elastic scattering data with laboratory kinetic energies below 2.1 GeV. We have considered the effect of adding dispersion-relation constraints required for a more reliable extraction of the pi-N sigma term. The results of these new fits are compared with those generated previously, using a reduced set of constraints, and with a fit which has only utilized forward constraints associated with the S-wave scattering lengths. We compare the results in terms of their resonance spectra and preferred values for the pi-N-N coupling and pi-N sigma term.
Source arXiv, nucl-th/9807087
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