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Observation of B(0)-->D((*)0)pp |
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| Authors: | Abe K Abe K Abe R Abe T Ahn Byoung Sup Aihara H Akatsu M Asano Y Aso T Aulchenko V Aushev T Bakich A M Ban Y Banas E Bay A Bedny I Behera P K Bondar A Bozek A Bracko M Brodzicka J Browder T E Casey B C K Chang P Chao Y Cheon B G Chistov R Choi S-K Choi Y Danilov M Dong L Y Dragic J Drutskoy A Eidelman S Eiges V Enari Y Fang F Fukunaga C Gabyshev N Garmash A Gershon T Gordon A Guo R Handa F Hara T Harada Y Hastings N C Hayashii H Hazumi M Heenan E M Higuchi I Higuchi T Hojo T Hokune T Hoshi Y Hoshina K Hou S R Hou W-S Hsu S-C Huang H-C Igaki T Igarashi Y Iijima T Inami K Ishikawa A Itoh R |
| Institution: | High Energy Accelerator Research Organization (KEK), Tsukuba. |
| Abstract: | The B meson decay modes B-->Dpp; and B-->D(*)pp; have been studied using 29.4 fb(-1) of data collected with the Belle detector at KEKB. The B;(0)-->D(0)pp; and B;(0)-->D(*0)pp; decays have been observed for the first time with branching fractions B(B;(0)-->D(0)pp;)=(1.18+/-0.15+/-0.16)x10(-4) and B(B;(0)-->D(*0)pp;)=(1.20(+0.33)(-0.29)+/-0.21)x10(-4). No signal has been found for the B+-->D(+)pp; and B+-->D(*+)pp; decay modes, and the corresponding upper limits at 90% C.L. are presented. |
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