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Neutron and proton spectra from the decay of Lambda hypernuclei

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Neutron and proton spectra from the decay of Lambda hypernuclei

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dc.contributor.author Ramos Gómez, Àngels
dc.contributor.author Vicente Vacas, Manuel José
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2014-10-24T07:54:19Z
dc.date.available 2014-10-24T07:54:19Z
dc.date.issued 1997
dc.identifier.citation Ramos, A. Vicente Vacas, Manuel José Oset Báguena, Eulogio 1997 Neutron and proton spectra from the decay of Lambda hypernuclei Physical Review C 55 2 735 744
dc.identifier.uri http://hdl.handle.net/10550/39334
dc.description.abstract We have determined the spectra of neutrons and protons following the decay of Lambda hypernuclei through the one- and two-nucleon-induced mechanisms. The momentum distributions of the primary nucleons are calculated and a Monte Carlo simulation is used to account for final state,interactions. The shape of the proton spectrum is sensitive to the value of Gamma(n)/Gamma(p) the ratio of neutron- to proton-induced decay, and the available experimental information favors larger values than those predicted by the one-pion-exchange model. From the spectra we calculate the number of neutrons (N-n) and protons (N-p) per Lambda decay and show how the measurement of these quantities, particularly N-p, can lead to a determination of Gamma(n)/Gamma(p). We also show that the consideration of the two-nucleon-induced channel has a repercussion on the results, widening the band of allowed values of Gamma(n)/Gamma(p) with respect to what is obtained neglecting this channel.
dc.language.iso eng
dc.relation.ispartof Physical Review C, 1997, vol. 55, num. 2, p. 735-744
dc.subject Física
dc.title Neutron and proton spectra from the decay of Lambda hypernuclei
dc.type journal article es_ES
dc.date.updated 2014-10-24T07:54:19Z
dc.identifier.doi 10.1103/PhysRevC.55.735
dc.identifier.idgrec 079450
dc.rights.accessRights open access es_ES

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