Forward pion-nucleon charge exchange reaction and Regge constraints

Fei, Huang; Sibirtsev, A.; Krewald, S.; Hanhart, C.; Haidenbauer, J.; Meißner, U. -G

doi:10.1088/1674-1137/33/12/045

Forward pion-nucleon charge exchange reaction and Regge constraints

Conference · Fri Jan 08 04:00:00 EST 2010 · Chinese Physics C

DOI:https://doi.org/10.1088/1674-1137/33/12/045· OSTI ID:1999413

Fei, Huang; Sibirtsev, A.; Krewald, S.; Hanhart, C.; Haidenbauer, J.; Meißner, U. -G

We present our recent study of pion-nucleon charge exchange amplitudes above 2 GeV. We analyze the forward pion-nucleon charge exchange reaction data in a Regge model and compare the resulting amplitudes with those from the Karlsruhe?Helsinki and George-Washington-University partial-wave analyses. We explore possible high-energy constraints for theoretical baryon resonance analyses in the energy region above 2 GeV. Our results show that for the pion-nucleon charge exchange reaction, the appropriate energy region for matching meson-nucleon dynamics to diffractive scattering should be around 3 GeV for the helicity flip amplitude.

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Research Organization:: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

DOE Contract Number:: AC05-06OR23177

OSTI ID:: 1999413

Report Number(s):: JLAB-THY-09-1077; DOE/OR/23177-1084

Conference Information:: Journal Name: Chinese Physics C Journal Issue: 12 Journal Volume: 33

Country of Publication:: United States

Language:: English

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