On the instanton-induced portion of the nucleon strangeness II: the MIT model beyond the linearized approximation

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dc.creatorKlabucar, D.
dc.creatorKumericki, K.
dc.creatorMekterovic, D.
dc.creatorPodobnik, B.
dc.date2003-04-08
dc.date.accessioned2026-07-07T12:26:27Z
dc.date.available2026-07-07T12:26:27Z
dc.descriptionIf instantons are introduced into the MIT bag model in such a way that bag radii are allowed to vary, the MIT bag interior can accommodate instanton density which is by an order of magnitude larger than in the case when the radii are fixed (although it is still significantly smaller than in the nonperturbative QCD vacuum). The instanton contribution to baryon mass shifts is also correspondingly larger. The instanton-induced part of the scalar strangeness of the nucleon MIT bag is an order of magnitude larger than found previously, within the linearized approximation. The decrease of the model radii (which is associated with the increase of the instanton density) is very favorable from the standpoint of nuclear physics.
dc.description20 pages, to appear in Eur. Phys. J. C
dc.identifierhttps://arxiv.org/abs/hep-ph/0304083
dc.identifierhttp://arxiv.org/abs/hep-ph/0304083
dc.identifierEur.Phys.J.C29:71-78,2003
dc.identifierdoi:10.1140/epjc/s2003-01218-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214886
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleOn the instanton-induced portion of the nucleon strangeness II: the MIT model beyond the linearized approximation
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