Nucleon resonances in $K$ and $T$ matrix calculations and fits

ORAL

Abstract

The characterization of resonances of the nucleon is considered in extractions from multichannel hadronic $K$ and $T$ matrices. We obtain the poles of the $K$ matrix and their relation to the poles of the $T$ matrix as determined from the SAID multichannel, unitary fit to observed cross sections and asymmetries. We study the dependence of $K$ and $T$ matrix structures on the fit parameterization. We also make comparisons to a dynamical model calculation of the inelastic hadronic amplitudes.

*This work was supported in part by the US Department of Energy Grant DE-FG02-99ER41110 and funding provided by Jefferson Lab.

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Authors

  • Mark Paris

    • Center for Nuclear Studies, The George Washington University
    • George Washington University

  • R. Arndt

    • Center for Nuclear Studies, The George Washington University
    • George Washington University

  • William Briscoe

    • Center for Nuclear Studies, The George Washington University
    • George Washington University
    • GWU

  • I. Strakovsky

    • George Washington University

  • R. Workman

    • Center for Nuclear Studies, The George Washington University
    • George Washington University