Antimagnetic rotation and role of gradual neutron alignment in $$^{103}\hbox {Pd}$$ 103 Pd

Lifetimes of states in the negative-parity band, based on the $$\nu (h_{11/2})$$ orbital in $$^{103}\hbox {Pd}$$ , have been measured in the spin range from 27/2 to 39/2 using the Doppler-Shift Attenuation Method. The inferred B(E2) values are observed to decrease with increasing angular momentum and $${\mathcal {J}}^{\text {(}2\text {)}}/$$ B(E2) values are found to be large (> 300 $$\hbar ^2\hbox {MeV}^{-1}\hbox {(eb)}^{-2}$$ ). These observations along with calculations based on the semiclassical particle-rotor model approach suggest that antimagnetic and collective rotation, along with gradual neutron alignment are responsible for angular momentum generation in the band under consideration.