Possible multiple chiral doublet bands in 107Ag

Two pairs of nearly degenerate doublet bands in Ag-107 are studied via the relativistic mean-field (RMF) theory and the multiparticle plus rotor model (PRM), which suggests these bands as two distinct sets of chiral doublet bands. For the suggested pi g(9/2)(-1) circle times nu h(11/2)(2) and pi g(9/2)(-1) circle times nu h(11/2)d(5/2) configurations, the favorable triaxial deformation gamma for nuclear chirality can be obtained from the configuration-fixed constrained triaxial RMF calculations. Adopting the PRM, the data available are reproduced very well for the two pairs of doublet bands. Chiral geometry is further conformed by analyzing the angular momentum components. We suggest that two pairs of doublet bands in Ag-107 would be another example of multiple chiral doublet bands.