Chiral Doublets For ¹⁰⁴Rh In Triaxial Relativistic Mean Field Theory

The relativistic mean field(RMF)theory is one of the most useful microscopic models due to its success in describing many nuclear phenomena for the stable nuclei as well as nuclei even far from stability.It has been shown that the relativistic mean field theory can reproduce better the nuclear saturation properties in nuclear matter and give naturally the spin-orbit potential,the origin of the pseudo-spin symmetry etc.Handedness or Chirality is a subject of general interest in molecular physics,elementary particles,and optical physics.The occurrence of chirality in nuclear physics was suggested by Frauendorf and J Meng in 1997,and the predicted patterns of spectra exhibiting chirality,i.e,the chiral doublet bands,were experimentally observed in 2001.In this thesis,the constrained triaxial relativistic mean filed approach has been adopted to calculate the energy surface of ¹⁰⁴Rh with PK1,whereβ² constrained calculation is used.The possible chiral doublet structures in ¹⁰⁴Rh are investigated.The existence of multiple chiral doublets(M_χD),i.e.,more than one pair of chiral doublet bands in one single nucleus,is suggested for ¹⁰⁴Rh based on the triaxial deformations and their corresponding proton and neutron configurations.The observation of M_χD is very promising in the A～100 mass region.