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Gamma and fast-timing spectroscopy of exotic tin isotopes around 132Sn

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2021-04-30
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Universidad Complutense de Madrid
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The evolution of the nuclear shell structure for nuclei with large neutron to proton ratios is an open problem in contemporary nuclear physics research. The study of the regions around exotic doubly-magic nuclei plays an important role in the understanding of how shell structure evolves, and provides key input for theoretical calculations, which can be then used over larger areas of the nuclear chart. The present PhD work is focused on the study of the nuclear structure in the region around 132Sn (Z=50 and N=82), the heaviest doubly-magic nucleus away from stability within reach at current experimental facilities. The nucleus 132Sn itself is of importance for the description of the exotic nuclear region around N = 82 and to provide insight into particle-hole couplings for both protons and neutrons. The nuclei with a valence particle or hole around 132Sn are relevant for investigating the single-particle states in the region, and the matrix elements of the electromagnetic transitions interconnecting them...
La evolución de la estructura de capas en núcleos exóticos con exceso de neutrones es un tema de investigación de actualidad en física nuclear. El estudio de núcleos situados en las regiones alrededor de los núcleos doblemente mágicos resulta de vital importancia para comprender la evolución de la estructura de capas a medida que nos alejamos del valle de estabilidad. Es además importante para poder realizar cálculos teóricos que puedan extenderse a regiones amplias e inexploradas de la tabla de núcleos. Esta tesis doctoral se centra en el estudio de la región alrededor de 132Sn (Z=50 yN=82), el núcleo exótico doblemente mágico más pesado al alcance de las instalaciones experimentales actuales...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Físicas, Departamento de Estructura de la Materia, Física Térmica y Electrónica, leída el 18-12-2020
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