Multiple antimagnetic rotation bands in odd-A 107Cd.

Lifetimes of the excited states of a pair of positive-parity ΔI=2 bands of 107Cd have been measured by using the Doppler-shift attenuation method. The obtained B(E2) transition rates significantly decrease with increasing spin, a behavior typical of antimagnetic rotation (AMR). The observed results, interpreted by the semiclassical model (SCM) calculations, confirm these bands to be AMR bands resulting from the coupling of a pair of high-Ω g9/2 proton holes to aligned g7/2(h11/2)² neutron particles. This is the first evidence for two AMR bands in a single nucleus. [ABSTRACT FROM AUTHOR]