Observation of a Narrow Charmoniumlike State in Exclusive B±→K±π+π-J/ψ Decays

Suyong Choi,S. L. Olsen,Kazuo Abe,T. Abe,I. Adachi,Byoung Sup Ahn,Hiroaki Aihara,K. Akai,M. Akatsu,M. Akemoto,Y. Asano,Tsukasa Aso, V.M. Aulchenko,T. Aushev,A. M. Bakich,Yong Ban,S. Banerjee,A. Bondar,A. Bozek,M. Bračko,Jolanta Brodzicka,T. E. Browder,P. Chang,Y. Chao,K. F. Chen,Byung Gu Cheon,R. Chistov,Y. Choi,Young-Il Choi, M. Danilov, L. Y. Dong,A. Drutskoy,Semen Eidelman,V. Eiges,J.W. Flanagan,Chikara Fukunaga,Kazuro Furukawa,N. Gabyshev,T. J. Gershon,B. Golob,H. Guler,R. Guo,C. Hagner, F. Handa,T. Hara,N. C. Hastings,H. Hayashii,Masashi Hazumi,L. Hinz, Y. Hoshi,W. S. Hou,Y. B. Hsiung,H. C. Huang,T. Iijima,K. Inami,A. Ishikawa,R. Itoh,M. Iwasaki,Y. Iwasaki,J. H. Kang,S. U. Kataoka, N. Katayama,H. Kawai,T. Kawasaki,H. Kichimi,Eiji Kikutani,H. J. Kim,Hyunwoo Kim,Jung-Hyun Kim,Seong Keun Kim,K. Kinoshita,Haruyo Koiso,Patrick Koppenburg,S. Korpar,P. Križan,P. Krokovny,Suneel Kumar,A.S. Kuzmin,J. S. Lange, G. Leder,S. H. Lee,T. Lesiak,S. W. Lin,D. Liventsev, J. MacNaughton,Gobinda Majumder, F. Mandl,Daniel Robert Marlow,T. Matsumoto,Shinichiro Michizono, Toshihiro Mimashi,W. A. Mitaroff, K. Miyabayashi,H. Miyake,D. Mohapatra,G. R. Moloney,T. Nagamine, Yasushi Nagasaka,T. Nakadaira,Takashi Nakamura

Physical Review Letters（2003）

引用 1237|浏览52

暂无评分

摘要

We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B+/--->K+/-pi(+)pi(-)J/psi. This state, which decays into pi(+)pi(-)J/psi, has a mass of 3872.0+/-0.6(stat)+/-0.5(syst) MeV, a value that is very near the M(D0)+M(D(*0)) mass threshold. The results are based on an analysis of 152M B-Bmacr; events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10sigma.

查看译文

关键词

null

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要