|
|||||
|
|
Observation of a charmoniumlike state produced in association with a J/psi in e+e- annihilation at sqrt[s] approximately equal to 10.6 GeV |
|
| Authors: | Abe K Adachi I Aihara H Arinstein K Asano Y Aulchenko V Aushev T Aziz T Bakich A M Balagura V Barbero M Bedny I Bitenc U Bizjak I Bondar A Bracko M Brodzicka J Browder T E Chao Y Chen A Cheon B G Chistov R Choi S-K Choi Y Choi Y K Chuvikov A Cole S Dalseno J Danilov M Dash M Drutskoy A Eidelman S Epifanov D Fratina S Gabyshev N Gershon T Gokhroo G Golob B Ha H C Haba J Hasegawa Y Hayasaka K Hayashii H Hazumi M Hinz L Hoshi Y Hou S Hou W-S Hsiung Y B Iijima T Ishikawa A Iwasaki M Iwasaki Y Kapusta P Kawasaki T Khan H R Kichimi H Kim H J Kim S M Kinoshita K Korpar S Krokovny P Kuo C C Kuzmin A |
| Institution: | High Energy Accelerator Research Organization (KEK), Tsukuba, Japan. |
| Abstract: | We report the first observation of a charmoniumlike state recoiling from the J/psi in the inclusive process e+e- -->J/psi+anything at a mass of (3.943+/-0.006+/-0.006) GeV/c{2}. We also observe the decay of this state into D*Dover ] and determine its intrinsic width to be less than 52 MeV/c{2} at the 90% C.L. These results are obtained from a 357 fb{-1} data sample collected with the Belle detector near the Upsilon(4S) resonance, at the KEKB asymmetric-energy e+e- collider. |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ | |