Updated analysis of meson-nucleon sigma terms in the perturbative chiral quark model

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dc.creatorInoue, T.
dc.creatorLyubovitskij, V. E.
dc.creatorGutsche, Th.
dc.creatorFaessler, Amand
dc.date2003-11-21
dc.date2004-02-09
dc.date.accessioned2026-07-07T03:51:23Z
dc.date.available2026-07-07T03:51:23Z
dc.descriptionWe present an updated analysis of meson-baryon sigma terms in the perturbative chiral quark model, which is based on effective chiral Lagrangian. The new feature concerns the inclusion of excited states in the quark propagator. Its influence on meson loops is shown to lead in particular for the pion-nucleon sigma term to an enhancement relevant for the current evaluation of this quantity. We also determine various flavor combinations of the scalar nucleon form factors and their respective low-momentum transfer limits.
dc.description26 pages, 10 figures, to be published in Phys Rev C
dc.identifierhttps://arxiv.org/abs/hep-ph/0311275
dc.identifierhttp://arxiv.org/abs/hep-ph/0311275
dc.identifierPhys.Rev. C69 (2004) 035207
dc.identifierdoi:10.1103/PhysRevC.69.035207
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/43072
dc.subjectHigh Energy Physics - Phenomenology
dc.titleUpdated analysis of meson-nucleon sigma terms in the perturbative chiral quark model
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