Shell model formalism for the vector proton asymmetry in the nonmesonic weak hypernuclear decay

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorGaleão, Alfredo P.-
Data de aceite: dc.date.accessioned2025-08-21T16:56:57Z-
Data de disponibilização: dc.date.available2025-08-21T16:56:57Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2011-01-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/228596-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/228596-
Descrição: dc.descriptionI present an independent-particle shell-model formalism for the calculation of the primary proton asymmetry of nonmesonic weak hypernuclear decay in terms of relative-space transition amplitudes. In previous work the asymmetry has been usually defined in terms of the single-proton angular distribution, having in mind the measurement of this quantity by single-proton detection, as done in the older experiments. More recently one strives for better determinations of this quantity through proton-neutron coincidence measurements, which are expected to suffer less contamination from rescattering inside the nuclear medium. Therefore I start here from a definition of the asymmetry based on the angular distribution of a proton in coincidence with a neutron in back-to-back kinematics. The two calculated quantities are not identical, but should have similar numerical values due to the fact that the opening-angle distribution for the primary nucleons is strongly peaked at this momentum orientation.-
Descrição: dc.descriptionInstituto de Física Teórica UNESP Universidade Estadual Paulista - SP-
Descrição: dc.descriptionInstituto de Física Teórica UNESP Universidade Estadual Paulista - SP-
Idioma: dc.languageen-
Relação: dc.relationProceedings of Science-
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Título: dc.titleShell model formalism for the vector proton asymmetry in the nonmesonic weak hypernuclear decay-
Tipo de arquivo: dc.typeaula digital-
Aparece nas coleções:Repositório Institucional - Unesp

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