标题： B介子衰变到最终态D(*)πππ的研究在BaBar实验中 显示英文标题

标题： Study of B Decays into the Final State D(*)πππat BaBar

摘要： 基于使用SLAC PEP-II非对称能量$B$-工厂的BaBar探测器在Upsilon(4S)共振处获取的57.4 fb-1数据样本，研究了B介子的强子衰变，其最终态为D(*)和三个π介子。 该研究通过完全重建B->D(*)a_{1}(1260)的独占衰变以及非共振模式B->D(*)rho^{0} pi和B->D(*)pipipi进行。 介绍了该研究的当前状态，并展示了主导的B->D(*)a_{1}(1260)衰变。 显示英文摘要

摘要： Based on a data sample of an integrated luminosity of 57.4 fb-1 at the Upsilon(4S) resonance taken with the BaBar detector using the SLAC PEP-II asymmetric-energy $B$-Factory, hadronic decays of B meson with the final states D(*) and three pions are studied. The study is performed by fully reconstructing the exclusive decays of B->D(*)a_{1}(1260) and the non-resonant modes B->D(*)rho^{0} pi and B->D(*)pipipi. The current status of the study is presented and a dominant B->D(*)a_{1}(1260) decay is shown.