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. 2004 Jul 30;93(5):051803.
doi: 10.1103/PhysRevLett.93.051803. Epub 2004 Jul 29.

Observation of B+-->psi(3770)K+

R Chistov  1 , K Abe, K Abe, T Abe, H Aihara, M Akatsu, Y Asano, T Aushev, A M Bakich, Y Ban, S Banerjee, A Bay, I Bedny, I Bizjak, A Bondar, A Bozek, M Bracko, J Brodzicka, T E Browder, Y Chao, K-F Chen, B G Cheon, Y Choi, Y K Choi, M Danilov, M Dash, L Y Dong, A Drutskoy, S Eidelman, V Eiges, D Epifanov, N Gabyshev, A Garmash, T Gershon, B Golob, R Guo, J Haba, T Hara, H Hayashii, M Hazumi, L Hinz, T Hokuue, Y Hoshi, W-S Hou, H-C Huang, T Iijima, K Inami, A Ishikawa, H Iwasaki, M Iwasaki, R Kagan, J H Kang, J S Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, H Kichimi, S K Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, Y-J Kwon, J S Lange, T Lesiak, J Li, A Limosani, S-W Lin, D Liventsev, J MacNaughton, G Majumder, F Mandl, D Marlow, H Matsumoto, T Matsumoto, A Matyja, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, G R Moloney, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, S Nishida, O Nitoh, S Noguchi, S Ogawa, T Ohshima, S Okuno, S L Olsen, H Ozaki, P Pakhlov, H Palka, H Park, N Parslow, L E Piilonen, H Sagawa, Y Sakai, T R Sarangi, O Schneider, A J Schwartz, S Semenov, M E Sevior, B Shwartz, V Sidorov, R Stamen, S Stanic, M Staric, A Sugiyama, K Sumisawa, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, Y Teramoto, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, G Varner, C C Wang, C H Wang, M-Z Wang, B D Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, J Ying, C C Zhang, Z P Zhang, V Zhilich, D Zontar, D Zürcher; Belle Collaboration
Affiliations

Observation of B+-->psi(3770)K+

R Chistov et al. Phys Rev Lett. .

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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