“…The BABAR Collaboration has presented a measurement of the weak phase 2β + γ from the time-dependent Dalitz plot analysis of the B 0 → D ∓ K 0 π ± decays [8]. In addition, the decay modes B → DK π have provided rich opportunities to investigate the spectroscopy of excited charm mesons and a e-mail: theoma@163.com b e-mail: wfwang@sxu.edu.cn c e-mail: liyakelly@163.com d e-mail: xiaozhenjun@njnu.edu.cn the significant components originated from K π system, corresponding results have been acquired from Dalitz plot analyses of B 0 → D ( * )± K 0 π ∓ [9], B 0 s →D 0 K − π + [10,11], B − → D + K − π − [12] and B + → D + K + π − [13] decays. In the amplitude analyses of B → DK π decays, contributions from the P-wave K π resonant state K * (892) 1 were found to be the largest proportion in most cases, and the B → DK * decays have been substantially studied in experiment by quasi-two-body approach [14][15][16][17][18][19][20][21][22][23].…”