We present a study of resonances in exclusive decays of B mesons to (D) over bar ((*))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 D(*0)K(+) and D(*+)K(S)(0) decay channels. We report also the observation of the decays B ->psi(3770)K where the psi(3770) decays to (D) over bar (0)D(0) and D(-)D(+). In addition, we present the observation of an enhancement for the (D) over bar (*0)D(0) invariant mass in the decays B ->(D) over bar (*0)D(0)K, 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

Baracchini E;Ferroni F;
2008

Abstract

We present a study of resonances in exclusive decays of B mesons to (D) over bar ((*))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 D(*0)K(+) and D(*+)K(S)(0) decay channels. We report also the observation of the decays B ->psi(3770)K where the psi(3770) decays to (D) over bar (0)D(0) and D(-)D(+). In addition, we present the observation of an enhancement for the (D) over bar (*0)D(0) invariant mass in the decays B ->(D) over bar (*0)D(0)K, 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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12571/497
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