Towards a solution of the Gn/Gp puzzle in the weak decay of Lambda-hypernuclei

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dc.creatorAlberico, W. M.
dc.creatorGarbarino, G.
dc.creatorParreno, A.
dc.creatorRamos, A.
dc.date2004-07-16
dc.date.accessioned2026-07-07T05:40:29Z
dc.date.available2026-07-07T05:40:29Z
dc.descriptionIn this contribution we discuss an evaluation of double-nucleon coincidence spectra for the non-mesonic weak decay of Lambda-hypernuclei. The results have been obtained by combining a one-meson-exchange model for the Lambda N -> nN transition in finite nuclei with a Monte Carlo code accounting for the nucleon final state interactions. A weak-decay-model independent analysis of KEK coincidence data allows us to extract Gn/Gp values around 0.3-0.4 for 5_Lambda-He and 12_Lambda-C, thus representing an important progress towards the solution of the Gn/Gp puzzle. Preliminary results for the angular asymmetries in the non-mesonic weak decay of polarized hypernuclei are also presented.
dc.description4 pages, Short talk given at DAPHNE2004: Workshop on Physics at Meson Factories, 7-11 June 2004, Rome, Frascati, Italy
dc.identifierhttps://arxiv.org/abs/nucl-th/0407046
dc.identifierhttp://arxiv.org/abs/nucl-th/0407046
dc.identifierFrascati Phys.Ser. 36 (2005) 249-253
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/82265
dc.subjectNuclear Theory
dc.titleTowards a solution of the Gn/Gp puzzle in the weak decay of Lambda-hypernuclei
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