Updated analysis of {pi}{ital N} elastic scattering data to 2.1 GeV: The baryon spectrum
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 (United States)
- University of British Columbia, Vancouver, British Columbia, V6T 2A3 (Canada)
We present the results of energy-dependent and single-energy partial-wave analyses of {pi}{ital N} elastic scattering data with laboratory kinetic energies below 2.1 GeV. Resonance structures have been extracted using Breit-Wigner fits, speed plots, and a complex plane mapping of the associated poles and zeros. This is the first set of resonance parameters from a VPI analysis constrained by fixed-{ital t} dispersion relations. We have searched our solutions for structures which may have been missed in our previous analyses, finding candidates in the {ital S}{sub 11} and {ital F}{sub 15} partial-wave amplitudes. Our results are compared with those found by the Karlsruhe, Carnegie-Mellon--Berkeley, and Kent State groups.
- OSTI ID:
- 118508
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 4 Vol. 52; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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