The nucleon-sigma coupling constant in QCD Sum Rules

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dc.creatorErkol, G.
dc.creatorRijken, Th. A.
dc.creatorTimmermans, R. G. E.
dc.date2006-03-23
dc.date.accessioned2026-07-07T11:44:23Z
dc.date.available2026-07-07T11:44:23Z
dc.descriptionThe external-field QCD Sum Rules method is used to evaluate the coupling constant of the light isoscalar-scalar meson (``$σ$'' or ε) to the nucleon. The contributions that come from the excited nucleon states and the response of the continuum threshold to the external field are calculated. The obtained value of the coupling constant is compatible with the large value required in one-boson exchange potential models of the two-nucleon interaction.
dc.description11 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0603056
dc.identifierhttp://arxiv.org/abs/nucl-th/0603056
dc.identifierPhys.Rev.C72:035209,2005
dc.identifierdoi:10.1103/PhysRevC.72.035209
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201583
dc.subjectNuclear Theory
dc.titleThe nucleon-sigma coupling constant in QCD Sum Rules
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