Pion-nucleon charge-exchange amplitudes above 2 GeV
F. Huang, A. Sibirtsev, S. Krewald, C. Hanhart, J. Haidenbauer, U.-G., Mei{\ss}ner
TL;DR
This paper compares pion-nucleon charge-exchange amplitudes from partial wave analyses with a Regge-cut model to explore high-energy constraints for baryon resonance studies above 2 GeV.
Contribution
It introduces a comparison between existing partial wave analyses and a Regge-cut model to establish high-energy constraints for baryon resonance analysis.
Findings
Good agreement between models at high energies
Potential for improved resonance analysis constraints
Insights into charge-exchange reaction mechanisms
Abstract
The amplitudes for the pion-nucleon charge exchange reaction of the Karlsruhe-Helsinki and the George-Washington-University partial wave analyses are compared with those of a Regge-cut model with the aim to explore the possibility to provide high energy constraints for theoretical baryon resonance analyses in the energy region above 2 GeV.
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