The generic concept of vibrational motion in nuclei is widespread and encompasses a great richness of phenomena. Near closed shells, where the nuclei are spherical in their ground state, the action of a residual interaction can cause the nucleus to oscillate in shape, taking on a range of octupole (i.e. pear-shaped) distortions as a function of time. The 96Zr nucleus is a perfect candidate to investigate octupole vibrations, which could also explain its unique structural features. For this reason, this year, an experiment was performed at Laboratori Nazionali di Legnaro using the gamma-ray tracking array AGATA array, state-of-the-art for gamma spectroscopy. The activity of the student will be devoted to the analysis of this recent data set with the objective of studying the lifetime of a octupole vibrational candidate state populated in the aforementioned experiment. In order to reach these goals, the student will be introduced in the different proceeds needed for performing the analysis as well as in the different analysis toolkits, like ROOT.
Il concetto di moti vibrazionali nei nuclei è ampiamente diffuso e comprende una grande ricchezza di fenomeni. Per nuclei sferici nel loro stato fondamentale, l'azione di un'interazione residua può farli oscillare in forma, facendoli assumere una serie di deformazioni ottupolari (ovvero a forma di pera) in funzione del tempo. Il nucleo 96Zr è un candidato perfetto per investigare le vibrazioni ottupolari, le quali potrebbero anche spiegare le caratteristiche strutturali uniche di questo nucleo. Per questo motivo, quest'anno è stato condotto un esperimento presso i Laboratori Nazionali di Legnaro utilizzando l'array a tracciamento gamma AGATA, stato dell’arte nella spettroscopia gamma. L'attività dello studente sarà dedicata all'analisi di questo recente set di dati, con l'obiettivo di studiare la vita media di uno stato che si suppone possa essere vibrazionale. Per raggiungere questi obiettivi, lo studente sarà accompagnato nei vari passi necessari per eseguire l'analisi, nonché ai diversi strumenti da utilizzare, come ROOT.
Vibrazioni ottupolari nel 96Zr
SGUOTTO, EDOARDO
2024/2025
Abstract
The generic concept of vibrational motion in nuclei is widespread and encompasses a great richness of phenomena. Near closed shells, where the nuclei are spherical in their ground state, the action of a residual interaction can cause the nucleus to oscillate in shape, taking on a range of octupole (i.e. pear-shaped) distortions as a function of time. The 96Zr nucleus is a perfect candidate to investigate octupole vibrations, which could also explain its unique structural features. For this reason, this year, an experiment was performed at Laboratori Nazionali di Legnaro using the gamma-ray tracking array AGATA array, state-of-the-art for gamma spectroscopy. The activity of the student will be devoted to the analysis of this recent data set with the objective of studying the lifetime of a octupole vibrational candidate state populated in the aforementioned experiment. In order to reach these goals, the student will be introduced in the different proceeds needed for performing the analysis as well as in the different analysis toolkits, like ROOT.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/89006