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 $$\\nu (h_{11/2})$$\n orbital in $$^{103}\\hbox {Pd}$$\n , 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 $${\\mathcal {J}}^{\\text {(}2\\text {)}}/$$\n B(E2) values are found to be large (\u003e 300 $$\\hbar ^2\\hbox {MeV}^{-1}\\hbox {(eb)}^{-2}$$\n ). 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.