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dc.contributor.authorParreño García, Assumptacat
dc.contributor.authorBennhold, Corneliuscat
dc.contributor.authorHolstein, B.
dc.description.abstractThe nonleptonic weak ∣ Δ S ∣ = 1 Λ N interaction, responsible for the dominant nonmesonic decay of all but the lightest hypernuclei, is studied in the framework of an effective-field theory. The long-range physics is described through tree-level exchange of the SU(3) Goldstone bosons, while the short-range potential is parametrized in terms of the lowest-order contact terms. We obtain reasonable fits to available weak hypernuclear decay rates and quote the values for the parity-violating asymmetry as predicted by the present effective-field theory.-
dc.publisherThe American Physical Societycat
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i
dc.relation.ispartofPhysical Review C, 2004, vol. 70, núm 5, p. 051601-1(R)-051601-5(R)cat
dc.rights(c) The American Physical Society, 2004cat
dc.subject.classificationReaccions nuclearscat
dc.subject.classificationEstructura nuclearcat
dc.subject.classificationInteraccions febles (Física nuclear)cat
dc.subject.otherNuclear reactionseng
dc.subject.otherNuclear structureeng
dc.subject.otherWeak interactions (Nuclear physics)eng
dc.titleLamda N -> NN weak interaction in effective-field theoryeng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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