Abstract
A high-resolution (\ensuremath{\alpha},\ensuremath{\alpha}') experiment has been performed in order to confirm the existence of the low-energy octupole resonance (LEOR) in $^{208}\mathrm{Pb}$. Until now there was a puzzling discrepancy; an (\ensuremath{\alpha},\ensuremath{\alpha}') experiment denied the existence, while a (p,p') measurement affirmed it. The present (\ensuremath{\alpha},\ensuremath{\alpha}') reaction with an improved resolution of 27 keV has identified clustering L=3 levels in the ``LEOR region'' in agreement with the former (p,p') measurement. The observed strength, however, is weaker than the (p,p') results, suggesting the coexistence of the isovector strength.
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