  Octupole vibrational states were studied in the nucleus $^{150}\mathrm{Nd}$
via inelastic proton scattering with $\unit[10.9]{MeV}$ protons which are an
excellent probe to excite natural parity states. For the first time in
$^{150}\mathrm{Nd}$, both the scattered protons and the $\gamma$ rays were
detected in coincidence giving the possibility to measure branching ratios in
detail. Using the coincidence technique, the $B(E1)$ ratios of the decaying
transitions for 10 octupole vibrational states and other negative-parity states
to the yrast band were determined and compared to the Alaga rule. The positive
and negative-parity states revealed by this experiment are compared with
Interacting Boson Approximation (IBA) calculations performed in the (spdf)
boson space. The calculations are found to be in good agreement with the
experimental data, both for positive and negative-parity states.
