1/N c Corrections in Meson-Baryon scattering

Herry J. Kwee, Richard Lebed

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2 Scopus citations

Abstract

Corrections to meson/ground-state baryon scattering amplitudes in the 1/N c expansion of QCD have previously been shown to be controlled by the t-channel difference |I t-J t| of isospin and angular momentum and by the change of hypercharge Y t. Here we derive the corresponding expressions in the original scattering s channel, allowing for nonzero meson spin and nontrivial SU(3) flavor quantum numbers, and provide explicit examples of the crossing relevant for πN ρN and KN scattering.

Original languageEnglish (US)
Article number046
JournalJournal of High Energy Physics
Volume2007
Issue number10
DOIs
Publication statusPublished - Oct 1 2007

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Keywords

  • 1/N expansion
  • QCD

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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