2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126645I present here results of a time-dependent analysis of the Dalitz structure of neutral $B$ meson decays to $\pip\pim\piz$ from a dataset of 346 million $B \bar B$ pairs collected at the $Υ(4S)$ center of mass energy by the BaBar detector at the SLAC PEP-II $e^+e^-$ accelerator. No significant CP violation effects are observed and 68% confidence interval is derived on the weak angle $α$ to be [75$^o$,152$^o$]Proceedings CKM Workshop 2006 in Nagoya, 5 pages, 3 figuresHigh Energy Physics - Experimenttext