Observation of the Decay [Formula presented]
Journal
Physical Review Letters
Journal Volume
89
Journal Issue
12
Date Issued
2002
Author(s)
Abe, K. et al.
Abe, R.
Abe, T.
Aihara, H.
Akatsu, M.
Asano, Y.
Aulchenko, V.
Aushev, T.
Bakich, A.M.
Ban, Y.
Banas, E.
Bay, A.
Abstract
We report the first observation of the decay B(0)-->D(+/-)D(*-/+) with the Belle detector at the KEKB e(+)e(-) Collider operated at the Upsilon(4S) resonance. The sum of branching fractions B(B(0)-->D(+)D(*-))+B(B(0)-->D(-)D(*+)) is measured to be (1.17+/-0.26(+0.22)(-0.25))x10(-3) using the full reconstruction method where both charmed mesons from B0 decays are reconstructed. A consistent value [(1.48+/-0.38(+0.28)(-0.31))x10(-3)] is obtained using a partial reconstruction technique that uses only the slow pion from the D(*-)-->D(-0)pi(-) decay and a fully reconstructed D(+) to reconstruct the B(0).
Type
journal article