Feasibility study for a model independent measurement of 2$beta + gamma$ in $B^0$ decays using $D^- K^0 pi^+$ final states

In this paper we present a feasibility study for measuring the combination of the Unitarity Triangle angle 2$beta +gamma$ with a time dependent Dalitz analysis in $B^0$ decays using $D^- K^0 pi^+$ final states following the method proposed in [1]. For this study we build a model for this decay using the latest experimental information and we investigate the possibility of fitting together with 2$beta +gamma$ all the relevant strong amplitudes and phases of the decay model. [1] R. Aleksan, T.C. Petersen and A. Soffer, Phys. Rev. D67 (2003) 096002 [hep-ph/0209194].