The experiments to determine the electron capture and beta-decay of B-8 into the highly excited states of Be-8

The main goal of this work is to study the structure of the highest energy states in Be-8 populated following the beta(+)-decay and the electron capture (EC) of B-8. With this aim, two experiments were performed at ISOLDE-CERN in 2017 and 2018. The first experiment had the aim to resolve the 2(+) do...

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Detalles Bibliográficos
Autores: Benito García, Jaime, Fraile Prieto, Luis Mario, otros, ...
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/8536
Acceso en línea:https://hdl.handle.net/20.500.14352/8536
Access Level:acceso abierto
Palabra clave:539.1
Astronomy & Astrophysics
Physics
Nuclear
Particles & Fields
Física nuclear
2207 Física Atómica y Nuclear
Descripción
Sumario:The main goal of this work is to study the structure of the highest energy states in Be-8 populated following the beta(+)-decay and the electron capture (EC) of B-8. With this aim, two experiments were performed at ISOLDE-CERN in 2017 and 2018. The first experiment had the aim to resolve the 2(+) doublet at 16.6 and 16.9 MeV, in order to study their isospin mixing. The second experiment aimed to determine a value or give an experimental upper limit to the branching ratio of the exotic EC-p decay. In this paper, we present the experimental setups and we discuss the analysis and present the preliminary results obtained so far.