Regulariztion dependence of S=0 and S=-1 meson-baryon system in the chiral unitary model

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dc.creatorNam, S. I.
dc.creatorKIm, H. -Ch.
dc.creatorHyodo, T.
dc.creatorJido, D.
dc.creatorHosaka, A.
dc.date2003-09-02
dc.date.accessioned2026-07-07T03:50:32Z
dc.date.available2026-07-07T03:50:32Z
dc.descriptionWe investigate the dependence of s-wave meson-baryon scattering amplitudes on different regularizations within the framework of the chiral unitary model. We employ two different regularization schemes, i.e. dimensional and form-factor regulariaztions to tame the divergences in the model. We also study the analytic structures of T-matrices, using those regularization schemes. We find that while the form-factor regularizaion produces almost the same results as the dimensional regularization did, the on-shell approximation is to some extent limited in the case of the form-factor regularization. Having chosen parameters properly, we show that the regularization dependences can be minimized.
dc.description18 pages, 15 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0309017
dc.identifierhttp://arxiv.org/abs/hep-ph/0309017
dc.identifierJ.Korean Phys.Soc. 45 (2004) 1466
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/42806
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleRegulariztion dependence of S=0 and S=-1 meson-baryon system in the chiral unitary model
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