Description du sujet de thèse

Last decades nuclear theorists gradually approach their ultimate goal to be able to calculate properties of complex atomic nuclei starting from realistic nucleon-nucleon interaction (ab-initio). This became possible due to advances in computation power for implementation of microscopic many-body models and to advent of novel interactions from chiral effective field theories. Modelisation of not very light nuclei is still challenging because of the model-space dimensions. One of the approximations is to consider only valence nucleons in the restricted model space beyond a closed-shell core. This requires however effective Hamiltonian and effective transition operators.
Our group focuses on microscopic derivation of valence-space Hamiltonians from realistic nucleon-nucleon potentials. Two approaches have been pursued. One is based on no-core shell model and Okubo-Lee-Suzuki transformation, relevant more to middle mass nuclei. The other approach is many-body perturbation theory (MBPT) which does not have model-space restrictions.
The purpose of the present thesis project is to continue developments within MBPT leading to construction of effective electroweak operators for consistent computations of electromagnetic and weak responses on nuclei within valence spaces. Proposed theoretical developments will serve as a valuable support to numerous experimental programs lead at radioactive ion beam facilities around the world.

Contexte de travail

Work in LP2IB. Participation in summer schools, conferences and workshops, collaboration meetings.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.