Phys. Rev. Lett.
100,
092001
(2008)
[6 pages]
Observation of a New DsJ Meson in B+→D̅ 0D0K+ Decays
J. Brodzicka et al. Belle Collaboration
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J. Brodzicka10, H. Palka30, I. Adachi10, H. Aihara47, V. Aulchenko1, A. M. Bakich42, E. Barberio24, A. Bay21, I. Bedny1, U. Bitenc17, A. Bondar1, M. Bračko23,17, T. E. Browder9, M.-C. Chang4, P. Chang29, A. Chen27, W. T. Chen27, B. G. Cheon8, C.-C. Chiang29, R. Chistov16, I.-S. Cho52, S.-K. Choi7, Y. Choi41, J. Dalseno24, M. Danilov16, M. Dash51, A. Drutskoy3, S. Eidelman1, N. Gabyshev1, A. Go27, G. Gokhroo43, B. Golob22,17, H. Ha19, J. Haba10, T. Hara35, K. Hayasaka25, H. Hayashii26, M. Hazumi10, D. Heffernan35, Y. Hoshi45, W.-S. Hou29, H. J. Hyun20, T. Iijima25, K. Ikado25, K. Inami25, A. Ishikawa38, H. Ishino48, R. Itoh10, M. Iwasaki47, Y. Iwasaki10, N. J. Joshi43, D. H. Kah20, J. H. Kang52, H. Kawai2, T. Kawasaki32, H. Kichimi10, H. O. Kim41, S. K. Kim40, Y. J. Kim6, K. Kinoshita3, S. Korpar23,17, P. Krokovny10, R. Kumar36, C. C. Kuo27, Y.-J. Kwon52, J. S. Lange5, J. S. Lee41, M. J. Lee40, S. E. Lee40, T. Lesiak30, A. Limosani24, D. Liventsev16, F. Mandl14, S. McOnie42, T. Medvedeva16, W. Mitaroff14, K. Miyabayashi26, H. Miyake35, H. Miyata32, R. Mizuk16, T. Mori25, Y. Nagasaka11, E. Nakano34, M. Nakao10, Z. Natkaniec30, S. Nishida10, O. Nitoh50, S. Noguchi26, T. Nozaki10, S. Ogawa44, T. Ohshima25, S. Okuno18, S. L. Olsen9,13, H. Ozaki10, P. Pakhlov16, G. Pakhlova16, C. W. Park41, H. Park20, R. Pestotnik17, L. E. Piilonen51, M. Rozanska30, Y. Sakai10, O. Schneider21, R. Seidl12,37, A. Sekiya26, K. Senyo25, M. E. Sevior24, M. Shapkin15, C. P. Shen13, H. Shibuya44, J.-G. Shiu29, J. B. Singh36, A. Sokolov15, A. Somov3, S. Stanič33, M. Starič17, T. Sumiyoshi49, F. Takasaki10, K. Tamai10, M. Tanaka10, G. N. Taylor24, Y. Teramoto34, I. Tikhomirov16, S. Uehara10, K. Ueno29, T. Uglov16, Y. Unno8, S. Uno10, P. Urquijo24, G. Varner9, K. Vervink21, S. Villa21, A. Vinokurova1, C. C. Wang29, C. H. Wang28, M.-Z. Wang29, P. Wang13, X. L. Wang13, Y. Watanabe18, R. Wedd24, E. Won19, B. D. Yabsley42, A. Yamaguchi46, Y. Yamashita31, M. Yamauchi10, C. Z. Yuan13, Y. Yusa51, C. C. Zhang13, Z. P. Zhang39, V. Zhilich1, V. Zhulanov1, A. Zupanc17, and N. Zwahlen21 (Belle Collaboration)
1Budker Institute of Nuclear Physics, Novosibirsk
2Chiba University, Chiba
3University of Cincinnati, Cincinnati, Ohio 45221
4Department of Physics, Fu Jen Catholic University, Taipei
5Justus-Liebig-Universität Gießen, Gießen
6The Graduate University for Advanced Studies, Hayama
7Gyeongsang National University, Chinju
8Hanyang University, Seoul
9University of Hawaii, Honolulu, Hawaii 96822
10High Energy Accelerator Research Organization (KEK), Tsukuba
11Hiroshima Institute of Technology, Hiroshima
12University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
13Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
14Institute of High Energy Physics, Vienna
15Institute of High Energy Physics, Protvino
16Institute for Theoretical and Experimental Physics, Moscow
17J. Stefan Institute, Ljubljana
18Kanagawa University, Yokohama
19Korea University, Seoul
20Kyungpook National University, Taegu
21École Polytechnique Fédérale de Lausanne (EPFL), Lausanne
22University of Ljubljana, Ljubljana
23University of Maribor, Maribor
24University of Melbourne, School of Physics, Victoria 3010
25Nagoya University, Nagoya
26Nara Women’s University, Nara
27National Central University, Chung-li
28National United University, Miao Li
29Department of Physics, National Taiwan University, Taipei
30H. Niewodniczanski Institute of Nuclear Physics, Krakow
31Nippon Dental University, Niigata
32Niigata University, Niigata
33University of Nova Gorica, Nova Gorica
34Osaka City University, Osaka
35Osaka University, Osaka
36Panjab University, Chandigarh
37RIKEN BNL Research Center, Upton, New York 11973
38Saga University, Saga
39University of Science and Technology of China, Hefei
40Seoul National University, Seoul
41Sungkyunkwan University, Suwon
42University of Sydney, Sydney, New South Wales
43Tata Institute of Fundamental Research, Mumbai
44Toho University, Funabashi
45Tohoku Gakuin University, Tagajo
46Tohoku University, Sendai
47Department of Physics, University of Tokyo, Tokyo
48Tokyo Institute of Technology, Tokyo
49Tokyo Metropolitan University, Tokyo
50Tokyo University of Agriculture and Technology, Tokyo
51Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
52Yonsei University, Seoul
Received 24 July 2007; published 6 March 2008
We report the observation of a new DsJ meson produced in B+→D̅ 0DsJ→D̅ 0D0K+. This state has a mass of M=2708±9-10+11 MeV/c2, a width Γ=108±23-31+36 MeV/c2 and a 1- spin-parity. The statistical significance of this observation is 8.4σ. The results are based on an analysis of 449×106 BB̅ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
© 2008 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.092001
DOI:
10.1103/PhysRevLett.100.092001
PACS:
14.40.Lb, 13.20.Fc, 13.25.Hw
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