Dalitz plot analysis of B{sup -}{yields}D{sup +}{pi}{sup -}{pi}{sup -}

We report on a Dalitz plot analysis of B{sup -}{yields}D{sup +}{pi}{sup -}{pi}{sup -} decays, based on a sample of about 383x10{sup 6} {upsilon}(4S){yields}BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the total branching fraction of the three-body decay: B(B{sup -}{yields}D{sup +}{pi}{sup -}{pi}{sup -})=(1.08{+-}0.03{+-}0.05)x10{sup -3}. We observe the established D{sub 2}*{sup 0} and confirm the existence of D{sub 0}*{sup 0} in their decays to D{sup +}{pi}{sup -}, where the D{sub 2}*{sup 0} and D{sub 0}*{sup 0} are the 2{sup +} and 0{sup +}cu P-wave states, respectively. We measure the masses and widths of D{sub 2}*{sup 0} and D{sub 0}*{sup 0} to be: m{sub D{sub 2}}{sub *{sup 0}}=(2460.4{+-}1.2{+-}1.2{+-}1.9) MeV/c{sup 2}, {gamma}{sub D{sub 2}}{sub *{sup 0}}=(41.8{+-}2.5{+-}2.1{+-}2.0) MeV, m{sub D{sub 0}}{sub *{sup 0}}=(2297{+-}8{+-}5{+-}19) MeV/c{sup 2}, and {gamma}{sub D{sub 0}}{sub *{sup 0}}=(273{+-}12{+-}17{+-}45) MeV. The stated errors reflect the statistical and systematic uncertainties, and the uncertainty related to the assumed composition of signal events and the theoretical model.