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Measurements of the branching fractions for psi(3770)-->D(0)D[over ](0), D+D-, DD[over ], and the resonance parameters of psi(3770) and psi(2S).
Ablikim, M; Bai, J Z; Ban, Y; Bian, J G; Cai, X; Chen, H F; Chen, H S; Chen, H X; Chen, J C; Chen, Jin; Chen, Y B; Chi, S P; Chu, Y P; Cui, X Z; Dai, Y S; Deng, Z Y; Dong, L Y; Dong, Q F; Du, S X; Du, Z Z; Fang, J; Fang, S S; Fu, C D; Gao, C S; Gao, Y N; Gu, S D; Gu, Y T; Guo, Y N; Guo, Y Q; He, K L; He, M; Heng, Y K; Hu, H M; Hu, T; Huang, X P; Huang, X T; Ji, X B; Jiang, X S; Jiao, J B; Jin, D P; Jin, S; Jin, Yi; Lai, Y F; Li, G; Li, H B; Li, H H; Li, J; Li, R Y; Li, S M; Li, W D.
Afiliación
  • Ablikim M; Institute of High Energy Physics, Beijing 100049, People's Republic of China.
Phys Rev Lett ; 97(12): 121801, 2006 Sep 22.
Article en En | MEDLINE | ID: mdl-17025950
We measure the branching fractions for psi(3770)-->D(0)D[over ](0), D+D-, DD[over ], and non-DD[over ] to be (46.7+/-4.7+/-2.3)%, (36.9+/-3.7+/-2.8)%, (83.6+/-7.3+/-4.2)%, and (16.4+/-7.3+/-4.2)%, respectively. The resonance parameters of psi(3770) and psi(2S) are measured to be M_(psi(3770))=3772.2+/-0.7+/-0.3 MeV, Gamma_(psi(3770))(tot)=26.9+/-2.4+/-0.3 MeV, and Gamma_(psi(3770))(ee)=251+/-26+/-11 eV; M_(psi(2S))=3685.5+/-0.0+/-0.3 MeV, Gamma_(psi(2S))(tot)=331+/-58+/-2 keV, and Gamma_(psi(2S))(ee)=2.330+/-0.036+/-0.110 keV. We also measure the light hadron R value to be R(uds)=2.262+/-0.054+/-0.109 in the energy region from 3.660 to 3.872 GeV.
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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2006 Tipo del documento: Article Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2006 Tipo del documento: Article Pais de publicación: Estados Unidos