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|Title:||Neutron and proton spectra from the decay of Lambda hypernuclei|
|Author:||Ramos Gómez, Àngels|
Vicente-Vacas, M. J.
Oset Baguena, Eulogio
Mètode de Montecarlo
Monte Carlo method
|Publisher:||The American Physical Society|
|Abstract:||We have determined the spectra of neutrons and protons following the decay of Λ 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 Γ n / Γ 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 Λ decay and show how the measurement of these quantities, particularly N p , can lead to a determination of Γ n / Γ 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 Γ n / Γ p with respect to what is obtained neglecting this channel.|
|Note:||Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.55.735|
|It is part of:||Physical Review C, 1997, vol. 55, núm. 2, p. 735-744|
|Appears in Collections:||Articles publicats en revistes (Física Quàntica i Astrofísica)|
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