K -> pi pi and a light scalar meson

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dc.creatorBloch, J. C. R.
dc.creatorIvanov, M. A.
dc.creatorMizutani, T.
dc.creatorRoberts, C. D.
dc.creatorSchmidt, S. M.
dc.date1999-10-11
dc.date.accessioned2026-07-07T12:29:17Z
dc.date.available2026-07-07T12:29:17Z
dc.descriptionWe explore the Delta-I= 1/2 rule and epsilon'/epsilon in K -> pi pi transitions using a Dyson-Schwinger equation model. Exploiting the feature that QCD penguin operators direct K^0_S transitions through 0^{++} intermediate states, we find an explanation of the enhancement of I=0 K -> pi pi transitions in the contribution of a light sigma-meson. This mechanism also affects epsilon'/epsilon.
dc.description7 pages, REVTEX
dc.identifierhttps://arxiv.org/abs/nucl-th/9910029
dc.identifierhttp://arxiv.org/abs/nucl-th/9910029
dc.identifierPhys.Rev.C62:025206,2000
dc.identifierdoi:10.1103/PhysRevC.62.025206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215825
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.titleK -> pi pi and a light scalar meson
dc.typetext

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