Approches stochastiques de la dynamique des collisions nucléaires.

Abstract : In order to study influence of fluctuations on various phenomena linked to heavy ions collisions, a Langevin equation has been derived from a microscopic model. Parameters entering this equation are completely determined from microscopic quantities characterising nuclear matter. This equation has been applied to various physical phenomena at intermediate energies. A first part is devoted to small amplitude collective motions, especially giant resonances. Memory effects in the collisions term of Boltzmann equation have been studied. A formal approach to the influence of the fluctuations on several coupled modes is proposed. A second part is devoted to large amplitude collective motions, where a detailed study of thermal fission is done. Fission rate is calculated and compared to experimental results. Finally, some preliminary works on multifragmentation are also proposed.
Document type :
Nuclear Theory [nucl-th]. Université de Caen, 1993. French
Contributor : Michel Lion <>
Submitted on : Friday, January 7, 2011 - 3:00:27 PM
Last modification on : Thursday, April 23, 2015 - 1:58:02 PM


  • HAL Id : tel-00553521, version 1



D. Boilley. Approches stochastiques de la dynamique des collisions nucléaires.. Nuclear Theory [nucl-th]. Université de Caen, 1993. French. <tel-00553521>




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