A measurement of ψ (2S) resonance parameters

J. Z. Bai; Y. Ban; J. G. Bian; I. Blum; X. Cai; J. F. Chang; H. F. Chen; H. S. Chen; J. Chen; C. Jie; J. C. Chen; Y. B. Chen; S. P. Chi; Y. P. Chu; X. Z. Cui; Y. S. Dai; L. Y. Dong; Z. Z. Du; W. Dunwoodie; J. Fang; S. S. Fang; H. Y. Fu; L. P. Fu; C. S. Gao; Y. N. Gao; M. Y. Gong; P. Gratton; S. D. Gu; Y. N. Guo; Y. Q. Guo; Z. J. Guo; S. W. Han; F. A. Harris; J. He; K. L. He; M. He; X. He; Y. K. Heng; T. Hong; H. M. Hu; T. Hu; G. S. Huang; X. P. Huang; J. M. Izen; X. B. Ji; C. H. Jiang; X. S. Jiang; D. P. Jin; S. Jin; Y. Jin; B. D. Jones; Z. J. Ke; D. Kong; Y. F. Lai; G. Li; H. H. Li; J. Li; J. C. Li; Q. J. Li; R. Y. Li; W. Li; W. G. Li; X. Q. Li; C. F. Liu; F. Liu; H. M. Liu; J. P. Liu; R. G. Liu; T. R. Liu; Y. Liu; Z. A. Liu; Z. X. Liu; X. C. Lou; B. Lowery; G. R. Lu; F. Lu; H. J. Lu; J. G. Lu; Z. J. Lu; X. L. Luo; E. C. Ma; F. C. Ma; J. M. Ma; R. Malchow; Z. P. Mao; X. C. Meng; X. H. Mo; J. Nie; Z. D. Nie; S. L. Olsen; D. Paluselli; L. J. Pan; J. Panetta; H. P. Peng; F. Porter; N. D. Qi; C. D. Qian; J. F. Qiu; G. Rong; D. L. Shen; H. Shen; X. Y. Shen; H. Y. Sheng; F. Shi; J. Standifird; H. S. Sun; S. S. Sun; Y. Z. Sun; X. Tang; D. Tian; W. Toki; G. L. Tong; G. S. Varner; J. Wang; J. Z. Wang; L. Wang; L. S. Wang; M. Wang; W. Meng; P. Wang; P. L. Wang; W. F. Wang; Y. F. Wang; Y. Y. Wang; Z. Wang; Z. Wang; Z. Y. Wang; M. Weaver; C. L. Wei; N. Wu; X. M. Xia; X. X. Xie; G. F. Xu; Y. Xu; S. T. Xue; M. L. Yan; W. B. Yan; C. Y. Yang; G. A. Yang; H. X. Yang; M. H. Ye; S. W. Ye; Y. X. Ye; J. Ying; C. S. Yu; G. W. Yu; C. Z. Yuan; J. M. Yuan; Y. Yuan; Q. Yue; Y. Zeng; B. X. Zhang; B. Y. Zhang; C. C. Zhang; D. H. Zhang; H. Y. Zhang; J. Zhang; J. W. Zhang; L. Zhang; L. S. Zhang; Q. J. Zhang; S. Q. Zhang; X. Y. Zhang; Y. Y. Zhang; Z. Yiyun; Z. P. Zhang; D. X. Zhao; Z. Jiawei; J. W. Zhao; P. P. Zhao; W. R. Zhao; Y. B. Zhao; Z. G. Zhao; J. P. Zheng; L. S. Zheng; Z. P. Zheng; X. C. Zhong; B. Q. Zhou; G. M. Zhou; L. Zhou; K. J. Zhu; Q. M. Zhu; Y. C. Zhu; Y. S. Zhu; Z. A. Zhu; B. A. Zhuang; B. S. Zou

doi:10.1016/S0370-2693(02)02909-X

A measurement of ψ (2S) resonance parameters

J. Z. Bai, Y. Ban, J. G. Bian, I. Blum, X. Cai, J. F. Chang, H. F. Chen, H. S. Chen, J. Chen, C. Jie, J. C. Chen, Y. B. Chen, S. P. Chi, Y. P. Chu, X. Z. Cui, Y. S. Dai, L. Y. Dong, Z. Z. Du, W. Dunwoodie, J. FangS. S. Fang, H. Y. Fu, L. P. Fu, C. S. Gao, Y. N. Gao, M. Y. Gong, P. Gratton, S. D. Gu, Y. N. Guo, Y. Q. Guo, Z. J. Guo, S. W. Han, F. A. Harris, J. He, K. L. He, M. He, X. He, Y. K. Heng, T. Hong, H. M. Hu, T. Hu, G. S. Huang, X. P. Huang, J. M. Izen, X. B. Ji, C. H. Jiang, X. S. Jiang, D. P. Jin, S. Jin, Y. Jin, B. D. Jones, Z. J. Ke, D. Kong, Y. F. Lai, G. Li, H. H. Li, J. Li, J. C. Li, Q. J. Li, R. Y. Li, W. Li, W. G. Li, X. Q. Li, C. F. Liu, F. Liu, H. M. Liu, J. P. Liu, R. G. Liu, T. R. Liu, Y. Liu, Z. A. Liu, Z. X. Liu, X. C. Lou, B. Lowery, G. R. Lu, F. Lu, H. J. Lu, J. G. Lu, Z. J. Lu, X. L. Luo, E. C. Ma, F. C. Ma, J. M. Ma, R. Malchow, Z. P. Mao, X. C. Meng, X. H. Mo, J. Nie, Z. D. Nie, S. L. Olsen, D. Paluselli, L. J. Pan, J. Panetta, H. P. Peng, F. Porter, N. D. Qi, C. D. Qian, J. F. Qiu, G. Rong, D. L. Shen, H. Shen, X. Y. Shen, H. Y. Sheng, F. Shi, J. Standifird, H. S. Sun, S. S. Sun, Y. Z. Sun, X. Tang, D. Tian, W. Toki, G. L. Tong, G. S. Varner, J. Wang, J. Z. Wang, L. Wang, L. S. Wang, M. Wang, W. Meng, P. Wang, P. L. Wang, W. F. Wang, Y. F. Wang, Y. Y. Wang, Z. Wang, Z. Wang, Z. Y. Wang, M. Weaver, C. L. Wei, N. Wu, X. M. Xia, X. X. Xie, G. F. Xu, Y. Xu, S. T. Xue, M. L. Yan, W. B. Yan, C. Y. Yang, G. A. Yang, H. X. Yang, M. H. Ye, S. W. Ye, Y. X. Ye, J. Ying, C. S. Yu, G. W. Yu, C. Z. Yuan, J. M. Yuan, Y. Yuan, Q. Yue, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. Y. Zhang, J. Zhang, J. W. Zhang, L. Zhang, L. S. Zhang, Q. J. Zhang, S. Q. Zhang, X. Y. Zhang, Y. Y. Zhang, Z. Yiyun, Z. P. Zhang, D. X. Zhao, Z. Jiawei, J. W. Zhao, P. P. Zhao, W. R. Zhao, Y. B. Zhao, Z. G. Zhao, J. P. Zheng, L. S. Zheng, Z. P. Zheng, X. C. Zhong, B. Q. Zhou, G. M. Zhou, L. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, B. A. Zhuang, B. S. Zou

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Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

Cross sections for e⁺e^- → hadrons, π⁺π^-J/ψ, and μ⁺μ^- have been measured in the vicinity of the ψ(2S) resonance using the BESII detector operated at the BEPC. The ψ(2S) total width; partial widths to hadrons, π⁺π^-J/ψ, leptons; and corresponding branching fractions have been determined to be Γ_t = 264 ± 27 keV; Γ_h = 258 ± 26 keV, Γ_π⁺π^-J/ψ = 85.4 ± 8.7 keV, and Γ_l = 2.44 ± 0.21 keV; and B_h = (97.79 ± 0.15)%, B_π⁺π^-_J/ψ = (32.3 ± 1.4)%, and B_l = (0.93 ± 0.08)%, respectively.

Original language	English
Pages (from-to)	24-32
Number of pages	9
Journal	Physics Letters B
Volume	550
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)02909-X
State	Published - Dec 12 2002

Funding

We gratefully acknowledge the efforts of the staffs of the BEPC accelerator and the computing center at the Institute of High Energy Physics, Beijing. This work is supported in part by the National Natural Science Foundation of China under contracts Nos. 19991480, 10175060 and the Chinese Academy of Sciences under contract No. KJ 95T-03(IHEP); and by the Department of Energy under Contract Nos. DE-FG03-92ER40701 (Caltech), DE-FG03-93ER40788 (Colorado State University), DE-AC03-76SF00515 (SLAC), DE-FG03-94ER40833 (U Hawaii), DE-FG03-95ER40925 (UT Dallas).

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10.1016/S0370-2693(02)02909-X

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Bai, J. Z., Ban, Y., Bian, J. G., Blum, I., Cai, X., Chang, J. F., Chen, H. F., Chen, H. S., Chen, J., Jie, C., Chen, J. C., Chen, Y. B., Chi, S. P., Chu, Y. P., Cui, X. Z., Dai, Y. S., Dong, L. Y., Du, Z. Z., Dunwoodie, W., ... Zou, B. S. (2002). A measurement of ψ (2S) resonance parameters. Physics Letters B, 550(1-2), 24-32. https://doi.org/10.1016/S0370-2693(02)02909-X

@article{c9adb1cd49154fcd98be740a97445287,

title = "A measurement of ψ (2S) resonance parameters",

abstract = "Cross sections for e+e- → hadrons, π+π-J/ψ, and μ+μ- have been measured in the vicinity of the ψ(2S) resonance using the BESII detector operated at the BEPC. The ψ(2S) total width; partial widths to hadrons, π+π-J/ψ, leptons; and corresponding branching fractions have been determined to be Γt = 264 ± 27 keV; Γh = 258 ± 26 keV, Γπ+π-J/ψ = 85.4 ± 8.7 keV, and Γl = 2.44 ± 0.21 keV; and Bh = (97.79 ± 0.15)\%, Bπ+π-J/ψ = (32.3 ± 1.4)\%, and Bl = (0.93 ± 0.08)\%, respectively.",

author = "Bai, \{J. Z.\} and Y. Ban and Bian, \{J. G.\} and I. Blum and X. Cai and Chang, \{J. F.\} and Chen, \{H. F.\} and Chen, \{H. S.\} and J. Chen and C. Jie and Chen, \{J. C.\} and Chen, \{Y. B.\} and Chi, \{S. P.\} and Chu, \{Y. P.\} and Cui, \{X. Z.\} and Dai, \{Y. S.\} and Dong, \{L. Y.\} and Du, \{Z. Z.\} and W. Dunwoodie and J. Fang and Fang, \{S. S.\} and Fu, \{H. Y.\} and Fu, \{L. P.\} and Gao, \{C. S.\} and Gao, \{Y. N.\} and Gong, \{M. Y.\} and P. Gratton and Gu, \{S. D.\} and Guo, \{Y. N.\} and Guo, \{Y. Q.\} and Guo, \{Z. J.\} and Han, \{S. W.\} and Harris, \{F. A.\} and J. He and He, \{K. L.\} and M. He and X. He and Heng, \{Y. K.\} and T. Hong and Hu, \{H. M.\} and T. Hu and Huang, \{G. S.\} and Huang, \{X. P.\} and Izen, \{J. M.\} and Ji, \{X. B.\} and Jiang, \{C. H.\} and Jiang, \{X. S.\} and Jin, \{D. P.\} and S. Jin and Y. Jin and Jones, \{B. D.\} and Ke, \{Z. J.\} and D. Kong and Lai, \{Y. F.\} and G. Li and Li, \{H. H.\} and J. Li and Li, \{J. C.\} and Li, \{Q. J.\} and Li, \{R. Y.\} and W. Li and Li, \{W. G.\} and Li, \{X. Q.\} and Liu, \{C. F.\} and F. Liu and Liu, \{H. M.\} and Liu, \{J. P.\} and Liu, \{R. G.\} and Liu, \{T. R.\} and Y. Liu and Liu, \{Z. A.\} and Liu, \{Z. X.\} and Lou, \{X. C.\} and B. Lowery and Lu, \{G. R.\} and F. Lu and Lu, \{H. J.\} and Lu, \{J. G.\} and Lu, \{Z. J.\} and Luo, \{X. L.\} and Ma, \{E. C.\} and Ma, \{F. C.\} and Ma, \{J. M.\} and R. Malchow and Mao, \{Z. P.\} and Meng, \{X. C.\} and Mo, \{X. H.\} and J. Nie and Nie, \{Z. D.\} and Olsen, \{S. L.\} and D. Paluselli and Pan, \{L. J.\} and J. Panetta and Peng, \{H. P.\} and F. Porter and Qi, \{N. D.\} and Qian, \{C. D.\} and Qiu, \{J. F.\} and G. Rong and Shen, \{D. L.\} and H. Shen and Shen, \{X. Y.\} and Sheng, \{H. Y.\} and F. Shi and J. Standifird and Sun, \{H. S.\} and Sun, \{S. S.\} and Sun, \{Y. Z.\} and X. Tang and D. Tian and W. Toki and Tong, \{G. L.\} and Varner, \{G. S.\} and J. Wang and Wang, \{J. Z.\} and L. Wang and Wang, \{L. S.\} and M. Wang and W. Meng and P. Wang and Wang, \{P. L.\} and Wang, \{W. F.\} and Wang, \{Y. F.\} and Wang, \{Y. Y.\} and Z. Wang and Z. Wang and Wang, \{Z. Y.\} and M. Weaver and Wei, \{C. L.\} and N. Wu and Xia, \{X. M.\} and Xie, \{X. X.\} and Xu, \{G. F.\} and Y. Xu and Xue, \{S. T.\} and Yan, \{M. L.\} and Yan, \{W. B.\} and Yang, \{C. Y.\} and Yang, \{G. A.\} and Yang, \{H. X.\} and Ye, \{M. H.\} and Ye, \{S. W.\} and Ye, \{Y. X.\} and J. Ying and Yu, \{C. S.\} and Yu, \{G. W.\} and Yuan, \{C. Z.\} and Yuan, \{J. M.\} and Y. Yuan and Q. Yue and Y. Zeng and Zhang, \{B. X.\} and Zhang, \{B. Y.\} and Zhang, \{C. C.\} and Zhang, \{D. H.\} and Zhang, \{H. Y.\} and J. Zhang and Zhang, \{J. W.\} and L. Zhang and Zhang, \{L. S.\} and Zhang, \{Q. J.\} and Zhang, \{S. Q.\} and Zhang, \{X. Y.\} and Zhang, \{Y. Y.\} and Z. Yiyun and Zhang, \{Z. P.\} and Zhao, \{D. X.\} and Z. Jiawei and Zhao, \{J. W.\} and Zhao, \{P. P.\} and Zhao, \{W. R.\} and Zhao, \{Y. B.\} and Zhao, \{Z. G.\} and Zheng, \{J. P.\} and Zheng, \{L. S.\} and Zheng, \{Z. P.\} and Zhong, \{X. C.\} and Zhou, \{B. Q.\} and Zhou, \{G. M.\} and L. Zhou and Zhu, \{K. J.\} and Zhu, \{Q. M.\} and Zhu, \{Y. C.\} and Zhu, \{Y. S.\} and Zhu, \{Z. A.\} and Zhuang, \{B. A.\} and Zou, \{B. S.\}",

year = "2002",

month = dec,

day = "12",

doi = "10.1016/S0370-2693(02)02909-X",

language = "English",

volume = "550",

pages = "24--32",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Bai, JZ, Ban, Y, Bian, JG, Blum, I, Cai, X, Chang, JF, Chen, HF, Chen, HS, Chen, J, Jie, C, Chen, JC, Chen, YB, Chi, SP, Chu, YP, Cui, XZ, Dai, YS, Dong, LY, Du, ZZ, Dunwoodie, W, Fang, J, Fang, SS, Fu, HY, Fu, LP, Gao, CS, Gao, YN, Gong, MY, Gratton, P, Gu, SD, Guo, YN, Guo, YQ, Guo, ZJ, Han, SW, Harris, FA, He, J, He, KL, He, M, He, X, Heng, YK, Hong, T, Hu, HM, Hu, T, Huang, GS, Huang, XP, Izen, JM, Ji, XB, Jiang, CH, Jiang, XS, Jin, DP, Jin, S, Jin, Y, Jones, BD, Ke, ZJ, Kong, D, Lai, YF, Li, G, Li, HH, Li, J, Li, JC, Li, QJ, Li, RY, Li, W, Li, WG, Li, XQ, Liu, CF, Liu, F, Liu, HM, Liu, JP, Liu, RG, Liu, TR, Liu, Y, Liu, ZA, Liu, ZX, Lou, XC, Lowery, B, Lu, GR, Lu, F, Lu, HJ, Lu, JG, Lu, ZJ, Luo, XL, Ma, EC, Ma, FC, Ma, JM, Malchow, R, Mao, ZP, Meng, XC, Mo, XH, Nie, J, Nie, ZD, Olsen, SL, Paluselli, D, Pan, LJ, Panetta, J, Peng, HP, Porter, F, Qi, ND, Qian, CD, Qiu, JF, Rong, G, Shen, DL, Shen, H, Shen, XY, Sheng, HY, Shi, F, Standifird, J, Sun, HS, Sun, SS, Sun, YZ, Tang, X, Tian, D, Toki, W, Tong, GL, Varner, GS, Wang, J, Wang, JZ, Wang, L, Wang, LS, Wang, M, Meng, W, Wang, P, Wang, PL, Wang, WF, Wang, YF, Wang, YY, Wang, Z, Wang, Z, Wang, ZY, Weaver, M, Wei, CL, Wu, N, Xia, XM, Xie, XX, Xu, GF, Xu, Y, Xue, ST, Yan, ML, Yan, WB, Yang, CY, Yang, GA, Yang, HX, Ye, MH, Ye, SW, Ye, YX, Ying, J, Yu, CS, Yu, GW, Yuan, CZ, Yuan, JM, Yuan, Y, Yue, Q, Zeng, Y, Zhang, BX, Zhang, BY, Zhang, CC, Zhang, DH, Zhang, HY, Zhang, J, Zhang, JW, Zhang, L, Zhang, LS, Zhang, QJ, Zhang, SQ, Zhang, XY, Zhang, YY, Yiyun, Z, Zhang, ZP, Zhao, DX, Jiawei, Z, Zhao, JW, Zhao, PP, Zhao, WR, Zhao, YB, Zhao, ZG, Zheng, JP, Zheng, LS, Zheng, ZP, Zhong, XC, Zhou, BQ, Zhou, GM, Zhou, L, Zhu, KJ, Zhu, QM, Zhu, YC, Zhu, YS, Zhu, ZA, Zhuang, BA & Zou, BS 2002, 'A measurement of ψ (2S) resonance parameters', Physics Letters B, vol. 550, no. 1-2, pp. 24-32. https://doi.org/10.1016/S0370-2693(02)02909-X

TY - JOUR

T1 - A measurement of ψ (2S) resonance parameters

AU - Bai, J. Z.

AU - Ban, Y.

AU - Bian, J. G.

AU - Blum, I.

AU - Cai, X.

AU - Chang, J. F.

AU - Chen, H. F.

AU - Chen, H. S.

AU - Chen, J.

AU - Jie, C.

AU - Chen, J. C.

AU - Chen, Y. B.

AU - Chi, S. P.

AU - Chu, Y. P.

AU - Cui, X. Z.

AU - Dai, Y. S.

AU - Dong, L. Y.

AU - Du, Z. Z.

AU - Dunwoodie, W.

AU - Fang, J.

AU - Fang, S. S.

AU - Fu, H. Y.

AU - Fu, L. P.

AU - Gao, C. S.

AU - Gao, Y. N.

AU - Gong, M. Y.

AU - Gratton, P.

AU - Gu, S. D.

AU - Guo, Y. N.

AU - Guo, Y. Q.

AU - Guo, Z. J.

AU - Han, S. W.

AU - Harris, F. A.

AU - He, J.

AU - He, K. L.

AU - He, M.

AU - He, X.

AU - Heng, Y. K.

AU - Hong, T.

AU - Hu, H. M.

AU - Hu, T.

AU - Huang, G. S.

AU - Huang, X. P.

AU - Izen, J. M.

AU - Ji, X. B.

AU - Jiang, C. H.

AU - Jiang, X. S.

AU - Jin, D. P.

AU - Jin, S.

AU - Jin, Y.

AU - Jones, B. D.

AU - Ke, Z. J.

AU - Kong, D.

AU - Lai, Y. F.

AU - Li, G.

AU - Li, H. H.

AU - Li, J.

AU - Li, J. C.

AU - Li, Q. J.

AU - Li, R. Y.

AU - Li, W.

AU - Li, W. G.

AU - Li, X. Q.

AU - Liu, C. F.

AU - Liu, F.

AU - Liu, H. M.

AU - Liu, J. P.

AU - Liu, R. G.

AU - Liu, T. R.

AU - Liu, Y.

AU - Liu, Z. A.

AU - Liu, Z. X.

AU - Lou, X. C.

AU - Lowery, B.

AU - Lu, G. R.

AU - Lu, F.

AU - Lu, H. J.

AU - Lu, J. G.

AU - Lu, Z. J.

AU - Luo, X. L.

AU - Ma, E. C.

AU - Ma, F. C.

AU - Ma, J. M.

AU - Malchow, R.

AU - Mao, Z. P.

AU - Meng, X. C.

AU - Mo, X. H.

AU - Nie, J.

AU - Nie, Z. D.

AU - Olsen, S. L.

AU - Paluselli, D.

AU - Pan, L. J.

AU - Panetta, J.

AU - Peng, H. P.

AU - Porter, F.

AU - Qi, N. D.

AU - Qian, C. D.

AU - Qiu, J. F.

AU - Rong, G.

AU - Shen, D. L.

AU - Shen, H.

AU - Shen, X. Y.

AU - Sheng, H. Y.

AU - Shi, F.

AU - Standifird, J.

AU - Sun, H. S.

AU - Sun, S. S.

AU - Sun, Y. Z.

AU - Tang, X.

AU - Tian, D.

AU - Toki, W.

AU - Tong, G. L.

AU - Varner, G. S.

AU - Wang, J.

AU - Wang, J. Z.

AU - Wang, L.

AU - Wang, L. S.

AU - Wang, M.

AU - Meng, W.

AU - Wang, P.

AU - Wang, P. L.

AU - Wang, W. F.

AU - Wang, Y. F.

AU - Wang, Y. Y.

AU - Wang, Z.

AU - Wang, Z. Y.

AU - Weaver, M.

AU - Wei, C. L.

AU - Wu, N.

AU - Xia, X. M.

AU - Xie, X. X.

AU - Xu, G. F.

AU - Xu, Y.

AU - Xue, S. T.

AU - Yan, M. L.

AU - Yan, W. B.

AU - Yang, C. Y.

AU - Yang, G. A.

AU - Yang, H. X.

AU - Ye, M. H.

AU - Ye, S. W.

AU - Ye, Y. X.

AU - Ying, J.

AU - Yu, C. S.

AU - Yu, G. W.

AU - Yuan, C. Z.

AU - Yuan, J. M.

AU - Yuan, Y.

AU - Yue, Q.

AU - Zeng, Y.

AU - Zhang, B. X.

AU - Zhang, B. Y.

AU - Zhang, C. C.

AU - Zhang, D. H.

AU - Zhang, H. Y.

AU - Zhang, J.

AU - Zhang, J. W.

AU - Zhang, L.

AU - Zhang, L. S.

AU - Zhang, Q. J.

AU - Zhang, S. Q.

AU - Zhang, X. Y.

AU - Zhang, Y. Y.

AU - Yiyun, Z.

AU - Zhang, Z. P.

AU - Zhao, D. X.

AU - Jiawei, Z.

AU - Zhao, J. W.

AU - Zhao, P. P.

AU - Zhao, W. R.

AU - Zhao, Y. B.

AU - Zhao, Z. G.

AU - Zheng, J. P.

AU - Zheng, L. S.

AU - Zheng, Z. P.

AU - Zhong, X. C.

AU - Zhou, B. Q.

AU - Zhou, G. M.

AU - Zhou, L.

AU - Zhu, K. J.

AU - Zhu, Q. M.

AU - Zhu, Y. C.

AU - Zhu, Y. S.

AU - Zhu, Z. A.

AU - Zhuang, B. A.

AU - Zou, B. S.

PY - 2002/12/12

Y1 - 2002/12/12

N2 - Cross sections for e+e- → hadrons, π+π-J/ψ, and μ+μ- have been measured in the vicinity of the ψ(2S) resonance using the BESII detector operated at the BEPC. The ψ(2S) total width; partial widths to hadrons, π+π-J/ψ, leptons; and corresponding branching fractions have been determined to be Γt = 264 ± 27 keV; Γh = 258 ± 26 keV, Γπ+π-J/ψ = 85.4 ± 8.7 keV, and Γl = 2.44 ± 0.21 keV; and Bh = (97.79 ± 0.15)%, Bπ+π-J/ψ = (32.3 ± 1.4)%, and Bl = (0.93 ± 0.08)%, respectively.

AB - Cross sections for e+e- → hadrons, π+π-J/ψ, and μ+μ- have been measured in the vicinity of the ψ(2S) resonance using the BESII detector operated at the BEPC. The ψ(2S) total width; partial widths to hadrons, π+π-J/ψ, leptons; and corresponding branching fractions have been determined to be Γt = 264 ± 27 keV; Γh = 258 ± 26 keV, Γπ+π-J/ψ = 85.4 ± 8.7 keV, and Γl = 2.44 ± 0.21 keV; and Bh = (97.79 ± 0.15)%, Bπ+π-J/ψ = (32.3 ± 1.4)%, and Bl = (0.93 ± 0.08)%, respectively.

UR - https://www.scopus.com/pages/publications/0037069773

U2 - 10.1016/S0370-2693(02)02909-X

DO - 10.1016/S0370-2693(02)02909-X

M3 - Article

AN - SCOPUS:0037069773

SN - 0370-2693

VL - 550

SP - 24

EP - 32

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

A measurement of ψ (2S) resonance parameters

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