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    題名: Measurement of the e(+)e(-)-> J/psi cc cross section at sapproximate to 10.6 GeV
    作者: Pakhlov,P;Aihara,H;Arinstein,K;Aushev,T;Bakich,AM;Balagura,V;Barberio,E;Bay,A;Belous,K;Bhardwaj,V;Bondar,A;Bracko,M;Brodzicka,J;Browder,TE;Chang,MC;Chang,P;Chen,A;Cheon,BG;Chistov,R;Choi,SK;Choi,Y;Danilov,M;Dash,M;Drutskoy,A;Dungel,W;Eidelman,S;Epifanov,D;Gabyshev,N;Goldenzweig,P;Golob,B;Ha,H;Han,BY;Hayasaka,K;Hayashii,H;Hazumi,M;Horii,Y;Hoshi,Y;Hou,WS;Hsiung,YB;Hyun,HJ;Iijima,T;Inami,K;Ishikawa,A;Ishino,H;Iwasaki,Y;Joshi,NJ;Kah,DH;Kaji,H;Kawai,H;Kawasai,T;Kichimi,H;Kim,HO;Kim,YI;Kinoshita,K;Ko,BR;Korpar,S;Krizan,P;Krokovny,P;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lange,JS;Lee,MJ;Lee,SE;Lesiak,T;Lin,SW;Liu,Y;Liventsev,D;Louvot,R;Mandl,F;Matyja,A;McOnie,S;Miyata,H;Miyazaki,Y;Mizuk,R;Nagasaka,Y;Nakao,M;Nakazawa,H;Nishimura,K;Nitoh,O;Ogawa,S;Ohshima,T;Okuno,S;Ozaki,H;Pakhlova,G;Palka,H;Park,CW;Park,H;Park,HK;Park,KS;Pestotnik,R;Piilonen,LE;Poluektov,A;Sahoo,H;Sakai,Y;Schneider,O;Schwanda,C;Senyo,K;Sevior,ME;Shapkin,M;Shen,CP;Shiu,JG;Shwartz,B;Singh,JB;Sokolov,A;Stanic,S;Staric,M;Sumiyoshi,T;Tanaka,M;Taylor,GN;Teramoto,Y;Tikhomirov,I;Trabelsi,K;Tsuboyama,T;Uehara,S;Uglov,T;Unno,Y;Uno,S;Usov,Y;Varner,G;Vervink,K;Vinokurova,A;Wang,CH;Wang,P;Watanabe,Y;Wedd,R;Won,E;Yabsley,BD;Yamashita,Y;Zhang,CC;Zhang,ZP;Zhilich,V;Zhulanov,V;Zivko,T;Zupanc,A;Zyukova,O
    貢獻者: 物理研究所
    關鍵詞: OCTET QUARKONIA PRODUCTION;J/PSI PRODUCTION;E(+)E(-);DETECTOR
    日期: 2009
    上傳時間: 2010-07-08 14:00:19 (UTC+8)
    出版者: 中央大學
    摘要: We present a new measurement of the e(+)e(-)-> J/psi c(c)over bar cross section where the c(c)over bar pair can fragment either into charmed hadrons or a charmonium state. In the former case the J/psi and a charmed hadron are reconstructed, while the latter process is measured using the recoil mass technique, which allows the identification of two-body final states without reconstruction of one of the charmonia. The measured e(+)e(-)-> J/psi c(c)over bar cross section is (0.74 +/- 0.08(-0.08)(+0.09)) pb, and the e(+)e(-)-> J/psi Xnon-c(c)over bar cross section is (0.43 +/- 0.09 +/- 0.09) pb. We note that the measured cross sections are obtained from a data sample with the multiplicity of charged tracks in the event larger than 4; corrections for the effect of this requirement are not performed as this cannot be done in a model-independent way. The analysis is based on a data sample with an integrated luminosity of 673 fb(-1) recorded near the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider.
    關聯: PHYSICAL REVIEW D
    顯示於類別:[物理研究所] 期刊論文

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