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Observation of B+-->psi(3770)K+ |
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| Authors: | Chistov R Abe K Abe K Abe T Aihara H Akatsu M Asano Y Aushev T Bakich A M Ban Y Banerjee S Bay A Bedny I Bizjak I Bondar A Bozek A Bracko M Brodzicka J Browder T E Chao Y Chen K-F Cheon B G Choi Y Choi Y K Danilov M Dash M Dong L Y Drutskoy A Eidelman S Eiges V Epifanov D Gabyshev N Garmash A Gershon T Golob B Guo R Haba J Hara T Hayashii H Hazumi M Hinz L Hokuue T Hoshi Y Hou W-S Huang H-C Iijima T Inami K Ishikawa A Iwasaki H Iwasaki M Kagan R Kang J H Kang J S Kapusta P Katayama N Kawai H Kawasaki T Kichimi H Kim S K Kinoshita K Koppenburg P Korpar S Krizan P Krokovny P Kumar S Kuzmin A |
| Institution: | Institute for Theoretical and Experimental Physics, Moscow. |
| Abstract: | We report the first observation of the decay B+-->psi(3770)K+ where the psi(3770) is reconstructed in the D0(-)D(0) and D+D- decay channels. The obtained branching fraction is B(B+-->psi(3770)K+)=(0.48+/-0.11+/-0.07)x10(-3). We have measured the branching fraction for the decay B+-->D0(-)D0K+ to be (1.17+/-0.21+/-0.15)x10(-3) and set a 90% confidence level upper limit of 0.90 x 10(-3) for the decay B+-->D+D-K+. We also present the results of a search for possible decays to D(-)D and D0(-)D(0)pi(0) of the recently observed X(3872) particle. The analysis is based on 88 fb(-1) of data collected at the Upsilon(4S) resonance by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. |
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