We present a study of resonances in exclusive decays of B mesons to (D) over bar (DK)-D-({*})-K-({*}). We report the observation of the decays B ->(D) over bar D-({*})(s1)+(2536) where the D-s1(+)(2536) is reconstructed in the (DK+)-K-{*}0 and (D{*}+KS0) decay channels. We report also the observation of the decays B ->psi(3770)K where the psi(3770) decays to (D) over bar D-0(0) and D-D+. In addition, we present the observation of an enhancement for the (D) over bar D-{*}0(0) invariant mass in the decays B ->(D) over bar (DK)-D-{*}0-K-0, at a mass of (3875.1(-0.5)(+0.7)+/- 0.5) MeV/c(2) with a width of (3.0(-1.4)(+1.9)+/- 0.9) MeV (the first errors are statistical and the second are systematic). Branching fractions and spin studies are shown for the three resonances. The results are based on 347 fb(-1) of data collected with the BABAR detector at the PEP-II B factory.
Study of resonances in exclusive B decays to (D)over-bar((*))D((*))K
BIANCHI, Fabrizio;GAMBA, Diego;PELLICCIONI, Mario;
2008-01-01
Abstract
We present a study of resonances in exclusive decays of B mesons to (D) over bar (DK)-D-({*})-K-({*}). We report the observation of the decays B ->(D) over bar D-({*})(s1)+(2536) where the D-s1(+)(2536) is reconstructed in the (DK+)-K-{*}0 and (D{*}+KS0) decay channels. We report also the observation of the decays B ->psi(3770)K where the psi(3770) decays to (D) over bar D-0(0) and D-D+. In addition, we present the observation of an enhancement for the (D) over bar D-{*}0(0) invariant mass in the decays B ->(D) over bar (DK)-D-{*}0-K-0, at a mass of (3875.1(-0.5)(+0.7)+/- 0.5) MeV/c(2) with a width of (3.0(-1.4)(+1.9)+/- 0.9) MeV (the first errors are statistical and the second are systematic). Branching fractions and spin studies are shown for the three resonances. The results are based on 347 fb(-1) of data collected with the BABAR detector at the PEP-II B factory.
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