Deformation effects in the structure and reactions of weakly bound exotic nuclei

This PhD thesis is devoted to the study of the structure and reactions of exotic weakly bound nuclei for which deformation plays a relevant role. It focusses on the description of weakly bound nuclei using deformed two-body models and their application to transfer and breakup reactions. For this pur...

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Detalles Bibliográficos
Autor: Punta de la Herrán, Pedro
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:dnet:idus________::558cafc7f6639ba0c3012ffa5c0edaa0
Acceso en línea:https://hdl.handle.net/11441/186379
Access Level:acceso abierto
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spelling Deformation effects in the structure and reactions of weakly bound exotic nucleiEfectos de la deformación en la estructura y las reacciones de núcleos exóticos débilmente ligadosPunta de la Herrán, PedroThis PhD thesis is devoted to the study of the structure and reactions of exotic weakly bound nuclei for which deformation plays a relevant role. It focusses on the description of weakly bound nuclei using deformed two-body models and their application to transfer and breakup reactions. For this purpose, the transformed harmonic oscillator basis has served as a powerful tool to discretise the continuum of unbound states of these nuclei. In exotic nuclei, the ratios of protons to neutrons differ significantly from those in stable nuclei, making them unstable systems with different and special properties. In particular, this work studies light nuclei which are weakly bound due to their excess of neutrons. Some of these nuclei present halo nature, meaning that the system is composed of a relatively compact core and one or two highly delocalised valence particles. On the other hand, their single-particle level schemes may not fit the magic numbers for stable nuclei. The properties of weakly bound exotic nuclei can be investigated by studying direct reactions involving them, which is an active field in nuclear physics due to recent advances in radioactive beam facilities. From a theoretical point of view, structure models that describe the exotic nuclei are required to study these reactions. These models should be sufficiently realistic in the description of the nuclei, but also sufficiently simple towards their inclusion in reaction calculations. In order to achieve both apparently contradictory requirements, it is essential to select the most relevant degrees of freedom. Weakly bound nuclei are often described using few-body models that ignore possible deformations of the fragments. However, for some exotic nuclei, proper consideration of deformation can be crucial. Therefore, the main objective of this work is to describe the structure and dynamics of nuclei composed of a weakly bound neutron and a deformed core.Lay Valera, José AntonioMoro Muñoz, Antonio MatíasFísica Atómica, Molecular y Nuclear2026info:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/186379reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)Inglésinfo:eu-repo/semantics/openAccessoai:dnet:idus________::558cafc7f6639ba0c3012ffa5c0edaa02026-06-17T12:51:07Z
dc.title.none.fl_str_mv Deformation effects in the structure and reactions of weakly bound exotic nuclei
Efectos de la deformación en la estructura y las reacciones de núcleos exóticos débilmente ligados
title Deformation effects in the structure and reactions of weakly bound exotic nuclei
spellingShingle Deformation effects in the structure and reactions of weakly bound exotic nuclei
Punta de la Herrán, Pedro
title_short Deformation effects in the structure and reactions of weakly bound exotic nuclei
title_full Deformation effects in the structure and reactions of weakly bound exotic nuclei
title_fullStr Deformation effects in the structure and reactions of weakly bound exotic nuclei
title_full_unstemmed Deformation effects in the structure and reactions of weakly bound exotic nuclei
title_sort Deformation effects in the structure and reactions of weakly bound exotic nuclei
dc.creator.none.fl_str_mv Punta de la Herrán, Pedro
author Punta de la Herrán, Pedro
author_facet Punta de la Herrán, Pedro
author_role author
dc.contributor.none.fl_str_mv Lay Valera, José Antonio
Moro Muñoz, Antonio Matías
Física Atómica, Molecular y Nuclear
description This PhD thesis is devoted to the study of the structure and reactions of exotic weakly bound nuclei for which deformation plays a relevant role. It focusses on the description of weakly bound nuclei using deformed two-body models and their application to transfer and breakup reactions. For this purpose, the transformed harmonic oscillator basis has served as a powerful tool to discretise the continuum of unbound states of these nuclei. In exotic nuclei, the ratios of protons to neutrons differ significantly from those in stable nuclei, making them unstable systems with different and special properties. In particular, this work studies light nuclei which are weakly bound due to their excess of neutrons. Some of these nuclei present halo nature, meaning that the system is composed of a relatively compact core and one or two highly delocalised valence particles. On the other hand, their single-particle level schemes may not fit the magic numbers for stable nuclei. The properties of weakly bound exotic nuclei can be investigated by studying direct reactions involving them, which is an active field in nuclear physics due to recent advances in radioactive beam facilities. From a theoretical point of view, structure models that describe the exotic nuclei are required to study these reactions. These models should be sufficiently realistic in the description of the nuclei, but also sufficiently simple towards their inclusion in reaction calculations. In order to achieve both apparently contradictory requirements, it is essential to select the most relevant degrees of freedom. Weakly bound nuclei are often described using few-body models that ignore possible deformations of the fragments. However, for some exotic nuclei, proper consideration of deformation can be crucial. Therefore, the main objective of this work is to describe the structure and dynamics of nuclei composed of a weakly bound neutron and a deformed core.
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
info:eu-repo/semantics/publishedVersion
format doctoralThesis
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/186379
url https://hdl.handle.net/11441/186379
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
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