Electromagnetic transition strengths and new insight into the chirality in ¹⁰⁶Ag

Excited states in ¹⁰⁶Ag are populated through the heavy-ion fusion evaporation reaction ¹⁰⁰Mo(¹¹ B,5n)¹⁰⁶ Ag at a beam energy of 60 MeV. Lifetimes are measured for transitions of the two negative-parity rotational bands in the nucleus ¹⁰⁶ Ag. The reduced transition probabilities show a great difference between the two bands. The staggering of the B(M1) and B(M1)/B(E2) values with spin are not observed. The bands are identified to be built on two distinct quasiparticle configurations. These results are contrary to an earlier suggestion that the pair of bands in ¹⁰⁶ Ag are chiral doublet bands.