Nonmesonic decay of the Lambda hyperon in nuclear matter - implications on the weak Lambda-N interaction

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dc.creatorCassing, W.
dc.creatorJarczyk, L.
dc.creatorKamys, B.
dc.creatorKulessa, P.
dc.creatorOhm, H.
dc.creatorPysz, K.
dc.creatorRudy, Z.
dc.creatorSchult, O. W. B.
dc.creatorStroeher, H.
dc.date2001-09-17
dc.date2003-01-08
dc.date.accessioned2026-07-07T12:54:24Z
dc.date.available2026-07-07T12:54:24Z
dc.descriptionThe lifetime of the Lambda hyperon in heavy hypernuclei as measured by the COSY-13 Collaboration in proton - Au, Bi and U collisions has been analysed to yield tau(Lambda) = (145 +- 11) ps. This value for tau(Lambda) is compatible with the lifetime extracted from antiproton annihilation on Bi and U targets, however, much more accurate. We find that the dependence of the lifetime tau(Lambda) on the mass of hypernuclei indicates a violation of the phenomenological Delta I = 1/2 rule known from the weak mesonic decays of strange particles. PACS: {13.30.-a}{Decays of baryons} {13.75.Ev}{Hyperon-nucleon interaction} {21.80}{Hypernuclei} {25.80.Pw}{Hyperon-induced reactions}
dc.description21 pages, 11 PostScript figures, EPJA in print
dc.identifierhttps://arxiv.org/abs/nucl-ex/0109012
dc.identifierhttp://arxiv.org/abs/nucl-ex/0109012
dc.identifierEur.Phys.J.A16:549-561,2003
dc.identifierdoi:10.1140/epja/i2002-10131-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223919
dc.subjectNuclear Experiment
dc.titleNonmesonic decay of the Lambda hyperon in nuclear matter - implications on the weak Lambda-N interaction
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