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| type
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| Thesis advisor
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| alternative label
| - Modèles de réaction et de structure pour les noyaux loin de la stabilité
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| - Spectroscopie
- Thèses et écrits académiques
- Structure nucléaire
- noyau halo
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| preferred label
| - Reaction and structure models for nuclei far from stability
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| dc:title
| - Reaction and structure models for nuclei far from stability
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| note
| - This thesis is concerned with sprectroscopic studies of exotic nuclei. We concentrate on the Structure and reactions of two-neutron halo systems. Our main goal is to establish the single Particle shell ordering in a series of cases through the use of the particle-particle random approximation (pp-rpa) structure calculations, appropriate reaction mechanism models and comparison with data. In a first part, we study transfer to the continuum reaction. By studying neutron transfer from a series of targets (d, 9be, 12c) to a 9li beam, we show that theory of transfer reaction from bound to Continuum states is well suited to extract structure information on 10li from experiment. The next chapter deals with a fragmentation model. We study 13be and 10li. In the third part the nuclear structure of halo nuclei is studied by applying the pp-rpa to a range of beryllium isotopes from 8be to 14be. Results obtained with our method for different observables are compared with available experiemental data With success. The level oredering in 13be is established on a firm basis. Finally in the fourth part, we present coupled-channels calculations related to transfer experiments for the forthcoming Facility eurisol.
- Cette these traite de l'etude spectroscopique des noyaux exotiques. Nous nous concentrons plus Particulierement sur la structure et les reactions impliquant les systemes a halo de deux neutrons. Notre but principal est d'etablir l'ordre des single particules dans differents noyaux en utilisant la random phase approximation particule-particule (pp-rpa) et des modeles de reaction adaptes. La premiere partie traite du transfert au continu que nous appliquons a l'etude du 10li. Dans la seconde partie, nous developpons un modele de fragmentation des noyaux halo. Nous etudions ainsi les noyaux: 13be et 10li. Dans une troisieme partie nous etudions une serie d'isotopes du beryllium avec la pp-rpa. L'ordre des niveaux dans le 13be est etabli. Finalement dans la derniere partie, nous presentons des calculs en voies couplees pour l'etude de reactions de transfert envisageables avec la facilite a venir eurisol.
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