Astrophysical S-factor calculation for selected reactions

Project in theoretical nuclear physics. A literature survey was performed with calculations on S-factors performed computationally.

Autores:: Calvachi Salas, Carlos Alberto

Tipo de recurso:: Trabajo de grado de pregrado

Fecha de publicación:: 2023

Institución:: Universidad de los Andes

Repositorio:: Séneca: repositorio Uniandes

Idioma:: eng

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network_acronym_str	UNIANDES2
network_name_str	Séneca: repositorio Uniandes
repository_id_str
dc.title.none.fl_str_mv	Astrophysical S-factor calculation for selected reactions
title	Astrophysical S-factor calculation for selected reactions
spellingShingle	Astrophysical S-factor calculation for selected reactions Nuclear astrophysics Astrophysical S-factor Literature survey Nuclear reactions Resonant phenomena Screening effect Astrophysical environments Experimental data fitting Física
title_short	Astrophysical S-factor calculation for selected reactions
title_full	Astrophysical S-factor calculation for selected reactions
title_fullStr	Astrophysical S-factor calculation for selected reactions
title_full_unstemmed	Astrophysical S-factor calculation for selected reactions
title_sort	Astrophysical S-factor calculation for selected reactions
dc.creator.fl_str_mv	Calvachi Salas, Carlos Alberto
dc.contributor.advisor.none.fl_str_mv	Kelkar, Neelima Govind
dc.contributor.author.none.fl_str_mv	Calvachi Salas, Carlos Alberto
dc.contributor.jury.none.fl_str_mv	Nowakowski, Marek
dc.subject.keyword.none.fl_str_mv	Nuclear astrophysics Astrophysical S-factor Literature survey Nuclear reactions Resonant phenomena Screening effect Astrophysical environments Experimental data fitting
topic	Nuclear astrophysics Astrophysical S-factor Literature survey Nuclear reactions Resonant phenomena Screening effect Astrophysical environments Experimental data fitting Física
dc.subject.themes.es_CO.fl_str_mv	Física
description	Project in theoretical nuclear physics. A literature survey was performed with calculations on S-factors performed computationally.
publishDate	2023
dc.date.accessioned.none.fl_str_mv	2023-01-31T20:57:57Z
dc.date.available.none.fl_str_mv	2023-01-31T20:57:57Z
dc.date.issued.none.fl_str_mv	2023-01-25
dc.type.es_CO.fl_str_mv	Trabajo de grado - Pregrado
dc.type.driver.none.fl_str_mv	info:eu-repo/semantics/bachelorThesis
dc.type.version.none.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.coar.none.fl_str_mv	http://purl.org/coar/resource_type/c_7a1f
dc.type.content.es_CO.fl_str_mv	Text
dc.type.redcol.none.fl_str_mv	http://purl.org/redcol/resource_type/TP
format	http://purl.org/coar/resource_type/c_7a1f
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	http://hdl.handle.net/1992/64404
dc.identifier.instname.es_CO.fl_str_mv	instname:Universidad de los Andes
dc.identifier.reponame.es_CO.fl_str_mv	reponame:Repositorio Institucional Séneca
dc.identifier.repourl.es_CO.fl_str_mv	repourl:https://repositorio.uniandes.edu.co/
url	http://hdl.handle.net/1992/64404
identifier_str_mv	instname:Universidad de los Andes reponame:Repositorio Institucional Séneca repourl:https://repositorio.uniandes.edu.co/
dc.language.iso.es_CO.fl_str_mv	eng
language	eng
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spelling	Atribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Kelkar, Neelima Govind09c3ba66-4853-4e46-b8b4-42b9c5fdd7ad600Calvachi Salas, Carlos Albertofc631f71-acda-4fb5-8396-71ccfd0cf304600Nowakowski, Marek2023-01-31T20:57:57Z2023-01-31T20:57:57Z2023-01-25http://hdl.handle.net/1992/64404instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Project in theoretical nuclear physics. A literature survey was performed with calculations on S-factors performed computationally.Despite the vast success of nuclear astrophysics in predicting the relative composition of the lightest elements in the early Universe, current theoretical and experimental knowledge of reactions at astrophysical low energies requires severe improvement. This work is centered in calculating the S-factor, which is a relevant quantity for low energy extrapolation. Initially, a literature survey is performed to present a diverse selection of models, which include empirical, potential, microscopical and R-matrix approaches. These models useful for S-factor computation at recurrent astrophysical environments, which generally comprehend Big Bang, stellar, explosive and exotic nucleosynthesis. Then, S-factor experimental data of relevant reactions is selected to be contrasted with predictions of potential and empirical models. Additionally, the effects of resonances and electron screening are analyzed for improving and consolidating the S-factor estimation.A pesar del gran éxito de la astrofísica nuclear en la predicción de la composición relativa de los elementos más ligeros en el Universo temprano, el conocimiento teórico y experimental de las reacciones a energías astrofísicas bajas requiere una mejora sustancial. Este trabajo se centra en el cálculo del factor S, que es una cantidad relevante para la extrapolación a bajas energías. Inicialmente, una revisión de literatura es realizada con el fin de presentar una diversa selección de modelos, que incluye las aproximaciones empíricas, potencial, microscópica y de matriz R. Estos modelos son útiles para el cómputo del factor S en ambientes astrofísicos usuales, los cuales comprenden en general nucleosíntesis en ambientes como el Big Bang, las estrellas y de tipo exótico y explosivo. En seguida, los datos experimentales del factor S son contrastados con predicciones de modelos potenciales y empíricos. Adicionalmente, los efectos de las resonancias, así como del apuntalamiento electrónico, son analizados para mejorar y consolidar la estimación del factor S.FísicoPregrado160 páginasapplication/pdfengUniversidad de los AndesFísicaFacultad de CienciasDepartamento de FísicaAstrophysical S-factor calculation for selected reactionsTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1fTexthttp://purl.org/redcol/resource_type/TPNuclear astrophysicsAstrophysical S-factorLiterature surveyNuclear reactionsResonant phenomenaScreening effectAstrophysical environmentsExperimental data fittingFísica[1] J. L. Basdevant, J. Rich, and M. Spiro. Fundamentals in Nuclear Physics: From Nuclear Structure to Cosmology. Springer New York, NY, 2004.[2] K. Heyde. Basic Ideas and Concepts in Nuclear Physics: An Introductory Approach. IOP Publishing, 2004.[3] A. Bohr and B. R. Mottelson. Nuclear structure. 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On the convergence of interior-reflective Newton methods for nonlinear minimization subject to bounds. 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