Pole versus Breit-Wigner resonance description of the orbitally excited baryons
classification
⚛️ nucl-th
keywords
baryonsbreit-wignermassesversusconsidercontextconventionaldescription
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We consider the masses used in recent studies involving the nonstrange sector of the l=1 baryons. The use of T-matrix and K-matrix poles versus the conventional Breit-Wigner masses is discussed within the context of a large-Nc fitting scheme.
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