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Observation of the decay B(0)-->D(+/-)D(*-/+) |
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| Authors: | Abe K Abe R Abe T Aihara H Akatsu M Asano Y Aulchenko V Aushev T Bakich A M Ban Y Banas E Bay A Bedny I Behera P K Bondar A Bozek A Brodzicka J Browder T E Chang P Chao Y Cheon B G Chistov R Choi S-K Choi Y Danilov M Dong L Y Drutskoy A Eidelman S Eiges V Enari Y Fujii H Fukunaga C Gabyshev N Garmash A Gershon T Golob B Gordon A Guo R Handa F Hara T Hayashii H Hazumi M Heenan E M Higuchi T Hinz L Hojo T Hokuue T Hoshi Y Hou S R Hou W-S Huang H-C Igaki T Iijima T Ishikawa A Itoh R Iwamoto M Iwasaki H Iwasaki Y Kaneko J Kang J H Kang J S Kapusta P Katayama N Kawai H Kawakami Y Kawasaki T |
| Affiliation: | Tohoku Gakuin University, Tagajo. |
| 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). |
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