Examining the Chiral Geometry in ¹⁰⁴Rh and ¹⁰⁶Rh

The criteria for chiral doublet bands based on one particle and one hole coupled to a triaxial rotor have been summarized. Two representative cases in A～100 odd--odd nuclei, nearly degenerate △I =1 doublet bands in ¹⁰⁴Rh and ¹⁰⁶Rh, are checked against these chiral criteria. It is shown that ¹⁰⁶Rh possesses better chiral geometry than ¹⁰⁴Rh, although the energy near degeneracy is achieved in ¹⁰⁴Rh in comparison with the constant energy separation of doublet bands in ¹⁰⁶Rh.