Observation Of Double C(C)Over-Bar Production In E(+)E(-) Annihilation At Root S Approximate To 10.6 Gev

K Abe, R Abe, T Abe,I Adachi,Bs Ahn,H Aihara, M Akatsu,Y Asano,T Aso, V Aulchenko,T Aushev,Am Bakich,Y Ban, E Banas,W Bartel, A Bay,Pk Behera,A Bondar,A Bozek, M Bracko, J Brodzicka,Te Browder,Bck Casey,P Chang, Y Chao,Bg Cheon, R Chistov,Sk Choi,Y Choi, M Danilov,Ly Dong,J Dragic, A Drutskoy,S Eidelman, V Eiges,Y Enari, C Fukunaga, N Gabyshev,A Garmash, T Gershon,A Gordon,R Guo,F Handa, T Hara, Y Harada,Nc Hastings,H Hayashii, M Hazumi,Em Heenan, I Higuchi, T Higuchi, T Hojo,T Hokuue, Y Hoshi,K Hoshina,Sr Hou,Ws Hou,Hc Huang, T Igaki,Y Igarashi,T Iijima,K Inami,A Ishikawa, R Itoh,M Iwamoto,H Iwasaki, Y Iwasaki,Hk Jang,J Kaneko,Jh Kang,Js Kang, P Kapusta,N Katayama, H Kawai,Y Kawakami,N Kawamura, T Kawasaki,H Kichimi,Dw Kim,H Kim,Hj Kim,Ho Kim,H Kim,Sk Kim,Th Kim,K Kinoshita,P Krokovny, R Kulasiri,S Kumar,A Kuzmin,Yj Kwon,Js Lange,G Leder,Sh Lee,J Li, D Liventsev,Rs Lu,J Macnaughton, G Majumder,F Mandl,S Matsumoto,T Matsumoto,H Miyake,H Miyata,Gr Moloney, T Mori,T Nagamine, Y Nagasaka, E Nakano, M Nakao,Jw Nam,Z Natkaniec, K Neichi,S Nishida,O Nitoh,S Noguchi,T Nozaki,S Ogawa, F Ohno, T Ohshima,T Okabe,S Okuno,Sl Olsen, Y Onuki,W Ostrowicz,H Ozaki,P Pakhlov, H Palka,Cw Park, H Park,Ks Park,Ls Peak,Jp Perroud,M Peters,Le Piilonen,N Root,H Sagawa, S Saitoh, Y Sakai, M Satapathy,A Satpathy,O Schneider,S Schrenk, C Schwanda, S Semenov,K Senyo, R Seuster,Me Sevior,H Shibuya,V Sidorov,Jb Singh,S Stanic, M Staric,A Sugi,A Sugiyama, K Sumisawa,T Sumiyoshi, K Suzuki,S Suzuki,Sk Swain,T Takahashi,F Takasaki,K Tamai,N Tamura,M Tanaka,Gn Taylor,Y Teramoto,S Tokuda, T Tomura,Sn Tovey, W Trischuk,T Tsuboyama, T Tsukamoto, S Uehara,K Ueno, Y Unno,S Uno,Se Vahsen, G Varner,Ke Varvell,Cc Wang, Ch Wang,Jg Wang,Mz Wang, Y Watanabe,E Won,Bd Yabsley,Y Yamada,A Yamaguchi, Y Yamashita,M Yamauchi, H Yanai, J Yashima,Y Yuan, Y Yusa,Zp Zhang,V Zhilich,D Zontar

PHYSICAL REVIEW LETTERS（2002）

引用 218|浏览2

暂无评分

摘要

We report the observation of prompt J/psi via double c (c) over bar production from the e(+)e(-) continuum. In this process one c (c) over bar pair fragments into a J/psi meson while the remaining pair either produces a charmonium state or fragments into open charm. Both cases have been experimentally observed. We find cross sections of sigma[e(+)e(-)-->J/psieta(c)(gamma)]xB(eta(c)-->greater than or equal to4 charged)=(0.033(-0.006)(+0.007)+/-0.009) pb and sigma(e(+)e(-)-->J/psiD(*+)X)=(0.53(-0.15)(+0.19)+/-0.14) pb and infer sigma(e(+)e(-)-->J/psic (c) over bar)/sigma(e(+)e(-)-->J/psiX)=0.59(-0.13)(+0.15)+/-0.12. These results are obtained from a 46.2 fb(-1) data sample collected near the Y(4S) resonance, with the Belle detector at the KEKB collider.

查看译文

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