Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay

A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Λ -hypernuclei. We adopt a nuclear matter formalism extended to finite nuclei via the local density approximation, a one-meson exchange wea...

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Detalles Bibliográficos
Autores principales: Bauer, Eduardo, Garbarino, G.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Física
Λ-hypernuclei
Non-mesonic weak decay
Two-nucleon induced decay
FSI
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/129301
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-129301
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Λ-hypernuclei
Non-mesonic weak decay
Two-nucleon induced decay
FSI
spellingShingle Física
Λ-hypernuclei
Non-mesonic weak decay
Two-nucleon induced decay
FSI
Bauer, Eduardo
Garbarino, G.
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
topic_facet Física
Λ-hypernuclei
Non-mesonic weak decay
Two-nucleon induced decay
FSI
description A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Λ -hypernuclei. We adopt a nuclear matter formalism extended to finite nuclei via the local density approximation, a one-meson exchange weak transition potential and a Bonn nucleon–nucleon strong potential. Ground state correlations and final state interactions, at second order in the nucleon–nucleon interaction, are introduced on the same footing for all the isospin channels of one- and two-nucleon induced decays. Single and double-coincidence nucleon spectra are predicted for 12 Λ C and compared with recent KEK and FINUDA data. The key role played by quantum interference terms allows us to improve the predictions obtained with intranuclear cascade codes. Discrepancies with data remain for proton emission.
format Articulo
Articulo
author Bauer, Eduardo
Garbarino, G.
author_facet Bauer, Eduardo
Garbarino, G.
author_sort Bauer, Eduardo
title Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
title_short Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
title_full Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
title_fullStr Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
title_full_unstemmed Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
title_sort microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/129301
work_keys_str_mv AT bauereduardo microscopicapproachtonucleonspectrainhypernuclearnonmesonicweakdecay
AT garbarinog microscopicapproachtonucleonspectrainhypernuclearnonmesonicweakdecay
bdutipo_str Repositorios
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