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Différents aspects de la physique nucléaire depuis les basses énergies jusqu'aux énergies intermédiaires

Abstract : This study focuses on different aspects of nuclear physics from low energies to intermediate ones. For the low energies, the nuclear matter is essentially constituted from interacting nucleons. Part I is on the fusion-fission of super-heavy elements, while Part II is on the Skyrme interactions-associated sum rules. In the case of the intermediate energies, where the nuclear matter is considered as being an hadronic phase mainly constituted from pions, Part III is focused on nuclear matter relativistic hydrodynamics with spontaneous chiral symmetry breaking. In Part I, the formation and the desexcitation of super-heavy nuclei are being studied. We analyzed the formation of compound nuclei including the memory effects. For super-heavy nuclei desexcitation, the existence of isomeric state within the potential barrier modifies the desexcitation dynamics and increases the fission time. This latter study could be useful for the study of the actinides fission. In Part II, the phenomenological Skyrme effective interactions- associated M1 and M3 sum rules are being calculated based on their intrinsic definitions. We identify then M1 up to the tensorial level and M3 with central potential. In Part III, as for the hadronic matter hydrodynamics being applied to heavy ions collisions, and as a first approach only, we can neglect spontaneous chiral symmetry but certainly not the dissipative impact.
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Submitted on : Friday, April 27, 2012 - 2:32:36 PM
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  • HAL Id : tel-00660287, version 2



Yoann Lallouet. Différents aspects de la physique nucléaire depuis les basses énergies jusqu'aux énergies intermédiaires. Autre [cond-mat.other]. Université Claude Bernard - Lyon I, 2011. Français. ⟨NNT : 2011LYO10286⟩. ⟨tel-00660287v2⟩



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