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1. EFFECTS OF DIFFERENT TILLAGE METHODS ON THE SOIL ENZYME ACTIVITY IN SORGHUM CULTIVATED LAND IN A HILLY ENVIRONMENT

Author: A.P. Wang, Z.P. Dong, Q. Dong, and S.T. Xue
Subjects: Tillage, Agronomy, biology, Soil enzyme, Cultivated land, Sorghum, biology.organism_classification, Agronomy and Crop Science, Ecology, Evolution, Behavior and Systematics
Published: 2020
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2. Structural configuration and phase stability in the quaternary Heusler compounds CoCrYSb (Y=Sc,Ti, V)

Author: Q. Yu, H.M. Huang, S.T. Xue, R. Tong, A. Laref, J. Chen, Z.D. He, Z.W. Zhu, and S.J. Luo
Subjects: Physical and Theoretical Chemistry, Condensed Matter Physics, Biochemistry
Published: 2022
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3. Measurements of Cabibbo-suppressed hadronic decay fractions of charmed D0 and D+ mesons

Author: M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, Q.F. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, C.S. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, X.P. Huang, X.T. Huang, X.B. Ji, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Yi Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.Y. Li, S.M. Li, W.D. Li, W.G. Li, X.L. Li, X.Q. Li, Y.L. Li, Y.F. Liang, H.B. Liao, C.X. Liu, F. Liu, Fang Liu, H.H. Liu, H.M. Liu, J. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Z.A. Liu, Z.X. Liu, F. Lu, G.R. Lu, H.J. Lu, J.G. Lu, C.L. Luo, L.X. Luo, X.L. Luo, F.C. Ma, H.L. Ma, J.M. Ma, L.L. Ma, Q.M. Ma, X.B. Ma, X.Y. Ma, Z.P. Mao, X.H. Mo, J. Nie, Z.D. Nie, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, H.S. Sun, J.F. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, D.Y. Wang, J.Z. Wang, K. Wang, L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Z. Wang, Z.Y. Wang, Zhe Wang, Zheng Wang, C.L. Wei, D.H. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, S.T. Xue, M.L. Yan, F. Yang, H.X. Yang, J. Yang, Y.X. Yang, M. Ye, M.H. Ye, Y.X. Ye, L.H. Yi, Z.Y. Yi, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, S.L. Zang, Y. Zeng, Yu Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.W. Zhang, J.Y. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Y.Y. Zhang, Yiyun Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, M.G. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Yingchun Zhu, Z.A. Zhu, B.A. Zhuang, X.A. Zhuang, and B.S. Zou
Subjects: Hadronic decay, Physics, Nuclear and High Energy Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, law.invention, Nuclear physics, Positron, law, Pi, Collider
Abstract: Using data collected with the BESII detector at Beijing Electron-Positron Collider, the measurements of relative branchin- fractions for seven Cabibbo-suppressed hadronic weak decays D-0 -> K-K+, pi-pi(+), pi(-)pi(+)pi(-) and pi-pi(+)pi(-), D-divided by -> (K) over bar K-0(divided by), K-K+pi(+) and pi(-),pi(+pi+) are presented. (c) 2005 Elsevier B.V. All rights reserved.
Published: 2005
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4. Partial wave analysis of ψ′→π+π−π0 at BESII

Author: M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, C.S. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, Z.J. Guo, F.A. Harris, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, G.S. Huang, L. Huang, X.P. Huang, X.B. Ji, Q.Y. Jia, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.B. Li, R.Y. Li, S.M. Li, W.G. Li, X.L. Li, X.Q. Li, X.S. Li, Y.F. Liang, H.B. Liao, C.X. Liu, F. Liu, Fang Liu, H.M. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Z.A. Liu, Z.X. Liu, F. Lu, G.R. Lu, J.G. Lu, C.L. Luo, X.L. Luo, F.C. Ma, J.M. Ma, L.L. Ma, Q.M. Ma, X.Y. Ma, Z.P. Mao, X.H. Mo, J. Nie, Z.D. Nie, S.L. Olsen, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, H.S. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, G.S. Varner, D.Y. Wang, J.Z. Wang, K. Wang, L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z.Y. Wang, C.L. Wei, D.H. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, Y. Xu, S.T. Xue, M.L. Yan, F. Yang, H.X. Yang, J. Yang, S.D. Yang, Y.X. Yang, M. Ye, M.H. Ye, Y.X. Ye, L.H. Yi, Z.Y. Yi, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, Q. Yue, S.L. Zang, Yu Zeng, Y. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.Y. Zhang, J.W. Zhang, L.S. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Y.J. Zhang, Y.Y. Zhang, Yiyun Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, M.G. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, Z.G. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Yingchun Zhu, Z.A. Zhu, B.A. Zhuang, and B.S. Zou
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Amplitude, Branching fraction, Partial wave analysis, Electron–positron annihilation, Hadron, Pi, Analytical chemistry, Resonance, Helicity
Abstract: The decay psi' + pi(+)pi(-)pi(0) is analyzed using a sample of 14 million psi' events taken with the BESII detector at the BEPC, and the branching fraction is measured to be B(psi' -> pi(+)pi(-)pi(0)) = (18.1 +/- 1.8 +/- 1.9) x 10(-5). A partial wave analysis is carried out using the helicity amplitude method. psi' -> rho(770)pi is observed, and the branching fraction is measured to be B(psi' -> rho(770)pi) = (5.1 +/- 0.7 +/- 1.1) x 10(-5), where the first error is statistical and the second one is systematic. A high mass enhancement with mass around 2.15 GeV/c(2) is also observed. Attributing this enhancement to the p(2150) resonance, the branching fraction is measured to be B(psi' -> rho(2150)pi -> pi(+)pi(-)pi(0)) = (19.4 +/- 2.5(-3.4)(+11.5)) x 10(-5). The results will help in the understanding of the longstanding "rho pi puzzle" between J/psi and psi' hadronic decays. (c) 2005 Elsevier B.V. All rights reserved.
Published: 2005
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5. Resonances in and

Author: M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, D.V. Bugg, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, Q.F. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, C.S. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, Z.J. Guo, F.A. Harris, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, G.S. Huang, X.P. Huang, X.T. Huang, X.B. Ji, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Yi Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.Y. Li, S.M. Li, W.D. Li, W.G. Li, X.L. Li, X.Q. Li, Y.L. Li, Y.F. Liang, H.B. Liao, C.X. Liu, F. Liu, Fang Liu, H.H. Liu, H.M. Liu, J. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Z.A. Liu, Z.X. Liu, F. Lu, G.R. Lu, H.J. Lu, J.G. Lu, C.L. Luo, L.X. Luo, X.L. Luo, F.C. Ma, H.L. Ma, J.M. Ma, L.L. Ma, Q.M. Ma, X.B. Ma, X.Y. Ma, Z.P. Mao, X.H. Mo, J. Nie, Z.D. Nie, S.L. Olsen, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, H.S. Sun, J.F. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, G.S. Varner, D.Y. Wang, J.Z. Wang, K. Wang, L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Z. Wang, Z.Y. Wang, Zhe Wang, Zheng Wang, C.L. Wei, D.H. Wei, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, S.T. Xue, M.L. Yan, F. Yang, H.X. Yang, J. Yang, Y.X. Yang, M. Ye, M.H. Ye, Y.X. Ye, L.H. Yi, Z.Y. Yi, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, S.L. Zang, Y. Zeng, Yu Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.W. Zhang, J.Y. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Y.Y. Zhang, Yiyun Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, M.G. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, Z.G. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Yingchun Zhu, Z.A. Zhu, B.A. Zhuang, X.A. Zhuang, and B.S. Zou
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Meson, Electron–positron annihilation, Partial wave analysis, Mass spectrum, Analytical chemistry, Dalitz plot, State (functional analysis), Scalar meson, Bar (unit)
Abstract: A partial wave analysis is presented of J/psi --> phipi(+)pi(-) and phiK(+)K(-) from a sample of 58M J/psi events in the BES II detector. The f(0)(980) is observed clearly in both sets of data, and parameters of the Flatte formula are determined accurately: M = 965 +/- 8(stat) +/- 6(syst) MeV/c(2), g(1) = 165 +/- 10 +/- 15 MeV/c(2), g(2)/g(1) = 4.21 +/- 0.25 +/- 0.21. The phipipi data also exhibit a strong pipi peak centred at M = 1335 MeV/c(2). It may be fitted with f(2)(1270) and a dominant 0(+) signal made from f(0)(1370) interfering with a smaller f(0)(1500) component. There is evidence that the f(0)(1370) signal is resonant, from interference with f(2)(1270). There is also a state in pipi with M = 1790(-30)(+40) MeV/c(2) and Gamma = 270(-30)(+60) MeV/c(2); spin 0 is preferred over spin 2. This state, f(0)(1790), is distinct from f(0)(1710). The phiK (K) over bar data contain a strong peak due to f(2)'(1525). A shoulder on its upper side may be fitted by interference between f(0)(1500) and f(0)(1710). (C) 2004 Elsevier B.V. All rights reserved.
Published: 2005
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6. Study of J/ψ→ωK+K−

Author: M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, D.V. Bugg, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, Q.F. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, C.S. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, Z.J. Guo, F.A. Harris, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, G.S. Huang, X.P. Huang, X.T. Huang, X.B. Ji, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Yi Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.Y. Li, S.M. Li, W.D. Li, W.G. Li, X.L. Li, X.Q. Li, Y.L. Li, Y.F. Liang, H.B. Liao, C.X. Liu, F. Liu, Fang Liu, H.H. Liu, H.M. Liu, J. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Z.A. Liu, Z.X. Liu, F. Lu, G.R. Lu, H.J. Lu, J.G. Lu, C.L. Luo, L.X. Luo, X.L. Luo, F.C. Ma, H.L. Ma, J.M. Ma, L.L. Ma, Q.M. Ma, X.B. Ma, X.Y. Ma, Z.P. Mao, X.H. Mo, J. Nie, Z.D. Nie, S.L. Olsen, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, H.S. Sun, J.F. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, G.S. Varner, D.Y. Wang, J.Z. Wang, K. Wang, L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Z. Wang, Z.Y. Wang, Zhe Wang, Zheng Wang, C.L. Wei, D.H. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, S.T. Xue, M.L. Yan, F. Yang, H.X. Yang, J. Yang, Y.X. Yang, M. Ye, M.H. Ye, Y.X. Ye, L.H. Yi, Z.Y. Yi, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, S.L. Zang, Y. Zeng, Yu Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.W. Zhang, J.Y. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Y.Y. Zhang, Yiyun Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, M.G. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, Z.G. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Yingchun Zhu, Z.A. Zhu, B.A. Zhuang, X.A. Zhuang, and B.S. Zou
Subjects: Physics, Nuclear and High Energy Physics, Nuclear magnetic resonance, Branching fraction, Analytical chemistry, Dalitz plot, Omega, Bar (unit)
Abstract: New data are presented on J/psi --> omegaK(+)K(-) from a sample of 58M J/psi events in the upgraded BES II detector at the BEPC. There is a conspicuous signal for f(0)(1710) --> K+K- and a peak at higher mass which may be fitted with f(2)(2150) --> K (K) over bar. From a combined analysis with omegapi(+)pi(-) data, the branching ratio BR(f(0)(1710) --> pipi)/BR(f(0)(1710) --> K (K) over bar) is < 0.11 at the 95% confidence level. (C) 2004 Elsevier B.V. All rights reserved.
Published: 2004
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7. Measurement of cross sections for D0D¯0 and D+D− production in e+e− annihilation at s=3.773 GeV

Author: M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, C.S. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, L. Huang, X.P. Huang, X.B. Ji, Q.Y. Jia, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.B. Li, R.Y. Li, S.M. Li, W.G. Li, X.L. Li, X.Q. Li, X.S. Li, Y.F. Liang, H.B. Liao, C.X. Liu, F. Liu, Fang Liu, H.M. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Z.A. Liu, Z.X. Liu, F. Lu, G.R. Lu, J.G. Lu, C.L. Luo, X.L. Luo, F.C. Ma, J.M. Ma, L.L. Ma, Q.M. Ma, X.Y. Ma, Z.P. Mao, X.H. Mo, J. Nie, Z.D. Nie, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, H.S. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, D.Y. Wang, J.Z. Wang, K. Wang, L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z.Y. Wang, C.L. Wei, D.H. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, Y. Xu, S.T. Xue, M.L. Yan, F. Yang, H.X. Yang, J. Yang, S.D. Yang, Y.X. Yang, M. Ye, M.H. Ye, Y.X. Ye, L.H. Yi, Z.Y. Yi, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, Q. Yue, S.L. Zang, Yu. Zeng, Y. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.Y. Zhang, J.W. Zhang, L.S. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Y.J. Zhang, Y.Y. Zhang, Yiyun Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, M.G. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Yingchun Zhu, Z.A. Zhu, B.A. Zhuang, and B.S. Zou
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Cross section (physics), Particle physics, Annihilation, Pair production, Electron–positron annihilation, Hadron, Extrapolation, Production (computer science), Charm (quantum number)
Abstract: The cross sections for D 0 D ¯ 0 and D + D − production at 3.773 GeV have been measured with BES-II detector at BEPC. These measurements are made by analyzing a data sample of about 17.3 pb −1 collected at the center-of-mass energy of 3.773 GeV. Observed cross sections for the charm pair production are radiatively corrected to obtain the tree level cross section for D D ¯ production. A measurement of the total tree level hadronic cross section is obtained from the tree level D D ¯ cross section and an extrapolation of the R u d s below the open charm threshold.
Published: 2004
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8. The σ pole in J/ψ→ωπ+π−

Author: M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, D.V. Bugg, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, C.S. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, Z.J. Guo, F.A. Harris, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, G.S. Huang, L. Huang, X.P. Huang, X.B. Ji, Q.Y. Jia, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.B. Li, R.Y. Li, S.M. Li, W.G. Li, X.L. Li, X.Q. Li, X.S. Li, Y.F. Liang, H.B. Liao, C.X. Liu, F. Liu, Fang Liu, H.M. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Z.A. Liu, Z.X. Liu, F. Lu, G.R. Lu, J.G. Lu, C.L. Luo, X.L. Luo, F.C. Ma, J.M. Ma, L.L. Ma, Q.M. Ma, X.Y. Ma, Z.P. Mao, X.H. Mo, J. Nie, Z.D. Nie, S.L. Olsen, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, T.N. Ruan, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, H.S. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, G.S. Varner, D.Y. Wang, J.Z. Wang, K. Wang, L. Wang, L.S. Wang, M. Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z.Y. Wang, C.L. Wei, D.H. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, Y. Xu, S.T. Xue, M.L. Yan, F. Yang, H.X. Yang, J. Yang, S.D. Yang, Y.X. Yang, M. Ye, M.H. Ye, Y.X. Ye, L.H. Yi, Z.Y. Yi, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, Q. Yue, S.L. Zang, Yu Zeng, Y. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.Y. Zhang, J.W. Zhang, L.S. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Y.J. Zhang, Y.Y. Zhang, Yiyun Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, M.G. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, Z.G. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Yingchun Zhu, Z.A. Zhu, B.A. Zhuang, and B.S. Zou
Subjects: Nuclear physics, Systematic error, Physics, Nuclear and High Energy Physics, Angular distribution, Electron–positron annihilation, Partial wave analysis, Pi, Resonance, Sigma, Omega
Abstract: Using a sample of 58 million J/psi events recorded in the BESII detector, the decay J/psi --> omegapi(+)pi(-) is studied. There are conspicuous omegaf(2)(1270) and b(1)(1235)pi signals. At low pipi mass, a large, broad peak due to the sigma is observed, and its pole position is determined to be (541 +/- 39) - i (252 +/- 42) MeV from the mean of six analyses. The errors, which are dominated by the systematic errors, cover the statistical and systematic errors in the six analyses, as well as the observed variation of the six analyses. (C) 2004 Elsevier B.V. All rights reserved.
Published: 2004
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9. A study of J/ψ→γγV(ρ,φ) decays with the BESII detector

Author: J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, J. Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, L.P. Fu, C.S. Gao, M.L. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, S.D. Gu, Y.N. Guo, Y.Q. Guo, S.W. Han, J. He, K.L. He, M. He, X. He, Y.K. Heng, H.M. Hu, T. Hu, G.S. Huang, L. Huang, X.P. Huang, X.B. Ji, Q.Y. Jia, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.B. Li, R.Y. Li, S.M. Li, W. Li, W.G. Li, X.L. Li, X.Q. Li, X.S. Li, Y.F. Liang, H.B. Liao, C.X. Liu, Fang Liu, F. Liu, H.M. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.A. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, C.L. Luo, X.L. Luo, F.C. Ma, J.M. Ma, L.L. Ma, X.Y. Ma, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, Z.D. Nie, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, L.W. Song, H.S. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, D.Y. Wang, J.Z. Wang, L. Wang, L.S. Wang, M. Wang, Meng Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z.Y. Wang, C.L. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, Y. Xu, S.T. Xue, M.L. Yan, W.B. Yan, F. Yang, H.X. Yang, J. Yang, S.D. Yang, Y.X. Yang, L.H. Yi, Z.Y. Yi, M. Ye, M.H. Ye, Y.X. Ye, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, Q. Yue, S.L. Zang, Y. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.M. Zhang, J.Y. Zhang, J.W. Zhang, L.S. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Yiyun Zhang, Y.J. Zhang, Y.Y. Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, Z.G. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Yingchun Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, and B.S. Zou
Subjects: Physics, Nuclear physics, Particle physics, Nuclear and High Energy Physics, Meson, Glueball, Branching fraction, Electron–positron annihilation, Detector, Mass spectrum, Radiative transfer, Resonance
Abstract: Using a sample of 58×10 6 J / ψ events collected with the BESII detector, radiative decays J / ψ → γγV , where V = ρ or φ , are studied. A resonance around 1420 MeV/ c 2 ( X (1424)) is observed in the γρ mass spectrum. Its mass and width are measured to be 1424±10(stat)±11(sys) MeV/ c 2 and 101.0±8.8±8.8 MeV/ c 2 , respectively, and its branching ratio B ( J / ψ → γX (1424)→ γγρ ) is determined to be (1.07±0.17±0.11)×10 −4 . A search for X (1424)→ γφ yields a 95% C.L. upper limit B ( J / ψ → γX (1424)→ γγφ ) −4 .
Published: 2004
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10. Search for lepton flavor violation process J/ψ→eμ

Author: J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, J. Chen, Jie Chen, J.C. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, Y.M. Dai, Y.S. Dai, L.Y. Dong, S.X. Du, Z.Z. Du, W. Dunwoodie, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, L.P. Fu, C.S. Gao, M.L. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, 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, L. 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, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, K. Li, Q.J. Li, R.B. Li, R.Y. Li, W. Li, W.G. Li, X.Q. Li, X.S. Li, C.F. Liu, C.X. Liu, Fang Liu, F. Liu, H.M. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.A. Liu, Z.X. Liu, X.C. Lou, 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, H.P. Peng, N.D. Qi, C.D. Qian, J.F. Qiu, G. Rong, D.L. Shen, H. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, L.W. Song, H.S. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, S.Q. Tang, X. Tang, D. Tian, Y.R. Tian, W. Toki, G.L. Tong, G.S. Varner, J. Wang, J.Z. Wang, L. Wang, L.S. Wang, M. Wang, Meng Wang, P. Wang, P.L. Wang, W.F. Wang, Y.F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z.Y. Wang, 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, G.A. Yang, H.X. Yang, J. Yang, S.D. Yang, M.H. Ye, Y.X. Ye, J. Ying, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, Q. Yue, S.L. Zang, Y. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.M. Zhang, J.W. Zhang, L.S. Zhang, Q.J. Zhang, S.Q. Zhang, X.Y. Zhang, Y.J. Zhang, Yiyun Zhang, Y.Y. Zhang, Z.P. Zhang, D.X. Zhao, Jiawei Zhao, 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, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Yingchun Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, and B.S. Zou
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, High Energy Physics::Experiment, Flavor, Lepton
Abstract: Using a sample of 5.8X10E7 J/$\psi$ events, the Beijing Spectrometer experiment has searched for the decay J/$\psi \to e\mu$. Four candidates, consistent with the estimated background, are observed, and an upper limit on the branching fraction of J/$\psi \to e\mu$ of 1.1X10E-6 at the 90% C.L. is obtained.
Published: 2003
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11. Study of production from

Author: J.Z. Bai, Y. Ban, J.G. Bian, J.F. Chang, A.D. Chen, H.F. Chen, H.S. Chen, J.C. Chen, X.D. Chen, Y.B. Chen, B.S. Cheng, S.P. Chi, Y.P. Chu, X.Z. Cui, Y.S. Dai, L.Y. Dong, Z.Z. Du, H.Y. Fu, L.P. Fu, C.S. Gao, S.D. Gu, Y.N. Guo, Z.J. Guo, S.W. Han, Y. Han, J. He, J.T. He, K.L. He, M. He, X. He, T. Hong, Y.K. Heng, G.Y. Hu, H.M. Hu, Q.H. Hu, T. Hu, G.S. Huang, X.P. Huang, Y.Z. Huang, X.B. Ji, C.H. Jiang, Y. Jin, Z.J. Ke, Y.F. Lai, D. Li, H.B. Li, H.H. Li, J. Li, J.C. Li, P.Q. Li, Q.J. Li, R.Y. Li, W. Li, W.G. Li, X.N. Li, X.Q. Li, B. Liu, F. Liu, Feng Liu, H.M. Liu, J. Liu, J.P. Liu, T.R. Liu, R.G. Liu, Y. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, Z.J. Lu, X.L. Luo, E.C. Ma, F.C. Ma, J.M. Ma, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, Z.D. Nie, N.D. Qi, X.R. Qi, C.D. Qian, J.F. Qiu, Y.K. Que, G. Rong, Y.Y. Shao, B.W. Shen, D.L. Shen, H. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, H.Z. Shi, X.F. Song, H.S. Sun, L.F. Sun, Y.Z. Sun, S.Q. Tang, X. Tang, G.L. Tong, J. Wang, J.Z. Wang, L. Wang, L.S. Wang, M. Wang, Meng Wang, P. Wang, P.L. Wang, S.M. Wang, W.F. Wang, Y.Y. Wang, Z.Y. Wang, C.L. Wei, N. Wu, D.M. Xi, X.M. Xia, X.X. Xie, G.F. Xu, Y. Xu, S.T. Xue, M.L. Yan, W.B. Yan, W.G. Yan, C.M. Yang, C.Y. Yang, G.A. Yang, H.X. Yang, X.F. Yang, M.H. Ye, S.W. Ye, Y.X. Ye, C.S. Yu, C.X. Yu, G.W. Yu, Y. Yuan, Y. Zeng, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.L. Zhang, H.Y. Zhang, J. Zhang, J.W. Zhang, L. Zhang, L.S. Zhang, P. Zhang, Q.J. Zhang, S.Q. Zhang, X.Y. Zhang, Y.Y. Zhang, Z.P. Zhang, D.X. Zhao, H.W. Zhao, Jiawei Zhao, 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, H.C. Chiang, G.X. Peng, J.X. Wang, and J.J. Zhu
Subjects: Physics, Nuclear and High Energy Physics, Spectrometer, Partial wave analysis, Resonance, High Energy Physics::Experiment, Production (computer science), Atomic physics, Nuclear Experiment
Abstract: Data are presented on the reaction J/psi--> p pbar eta using 7.8 million J/psi triggers collected by the BEjing Spectrometer (BES). A partial wave analysis is performed. A clear enhancement near the p eta(pbar eta) threshold is observed. It is fitted with a JP=1/2- resonance with mass $M= 1530\pm 10$ MeV and width $\Gamma = 95\pm 25$ MeV. In addition, there is a peak around 1650 MeV with JP=1/2- preferred also, fitted with $M =1647\pm 20$ MeV and $\Gamma = 145^{+80}_{-45}$ MeV. These two N* resonances are believed to be the two well established states, S11(1535) and S11(1650), respectively. It is the first partial wave study of the production of these resonances from J/psi decays.
Published: 2001
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12. Partial wave analysis of J/ψ→γ(K±KS0π∓)

Author: J.Z. Bai, Y. Ban, J.G. Bian, A.D. Chen, G.P. Chen, H.F. Chen, H.S. Chen, J.C. Chen, X.D. Chen, Y. Chen, Y.B. Chen, B.S. Cheng, X.Z. Cui, H.L. Ding, L.Y. Dong, Z.Z. Du, C.S. Gao, M.L. Gao, S.Q. Gao, J.H. Gu, S.D. Gu, W.X. Gu, Y.N. Guo, Z.J. Guo, S.W. Han, Y. Han, J. He, J.T. He, K.L. He, M. He, Y.K. Heng, G.Y. Hu, H.M. Hu, J.L. Hu, Q.H. Hu, T. Hu, G.S. Huang, X.P. Huang, Y.Z. Huang, C.H. Jiang, Y. Jin, X. Ju, Z.J. Ke, Y.F. Lai, P.F. Lang, C.G. Li, D. Li, H.B. Li, J. Li, J.C. Li, P.Q. Li, W. Li, W.G. Li, X.H. Li, X.N. Li, X.Q. Li, Z.C. Li, B. Liu, F. Liu, Feng Liu, H.M. Liu, J. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, X.L. Luo, E.C. Ma, J.M. Ma, H.S. Mao, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, N.D. Qi, X.R. Qi, C.D. Qian, J.F. Qiu, Y.H. Qu, Y.K. Que, G. Rong, Y.Y. Shao, B.W. Shen, D.L. Shen, H. Shen, H.Y. Shen, X.Y. Shen, F. Shi, H.Z. Shi, X.F. Song, H.S. Sun, L.F. Sun, Y.Z. Sun, S.Q. Tang, G.L. Tong, F. Wang, L. Wang, L.S. Wang, L.Z. Wang, P. Wang, P.L. Wang, S.M. Wang, Y.Y. Wang, Z.Y. Wang, C.L. Wei, N. Wu, Y.G. Wu, D.M. Xi, X.M. Xia, Y. Xie, Y.H. Xie, G.F. Xu, S.T. Xue, J. Yan, W.G. Yan, C.M. Yang, C.Y. Yang, H.X. Yang, X.F. Yang, M.H. Ye, S.W. Ye, Y.X. Ye, C.S. Yu, C.X. Yu, G.W. Yu, Y.H. Yu, Z.Q. Yu, C.Z. Yuan, Y. Yuan, B.Y. Zhang, C. Zhang, C.C. Zhang, D.H. Zhang, Dehong Zhang, H.L. Zhang, J. Zhang, J.W. Zhang, L. Zhang, Lei Zhang, L.S. Zhang, P. Zhang, Q.J. Zhang, S.Q. Zhang, X.Y. Zhang, Y.Y. Zhang, D.X. Zhao, H.W. Zhao, Jiawei Zhao, J.W. Zhao, M. Zhao, W.R. Zhao, Z.G. Zhao, J.P. Zheng, L.S. Zheng, Z.P. Zheng, B.Q. Zhou, L. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, D.V. Bugg, and B.S. Zou
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Amplitude, Partial wave analysis, Pi, High Energy Physics::Experiment, Bar (unit)
Abstract: BES data on $J/\psi \to \gamma (K^{\pm} K_S^0 \pi^{\mp})$ are presented. There is a strong peak due to $\eta(1440)/\iota$, which is fitted with a Breit-Wigner amplitude with $s$-dependent widths for decays to $K^*K$, $\kappa K$, $\eta \pi\pi$ and $\rho\rho$; $\kappa$ refers to the $K\pi$ S-wave. At a $K\bar{K}\pi$ mass of $\sim 2040$ MeV, there is a second peak with width $\sim 400$ MeV; $J^P = 0^-$ is preferred over $1^+$ and $2^-$ respectively by 5.2 and 6.8 standard deviations. It is a possible candidate for a $0^-$ $s\bar sg$ hybrid partner of $\pi(1800)$.
Published: 2000
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13. Partial wave analysis of J/ψ→γ(K+K−π+π−)

Author: J.Z. Bai, Y. Ban, J.G. Bian, A.D. Chen, G.P. Chen, H.F. Chen, H.S. Chen, J.C. Chen, X.D. Chen, Y. Chen, Y.B. Chen, B.S. Cheng, X.Z. Cui, H.L. Ding, L.Y. Dong, Z.Z. Du, C.S. Gao, M.L. Gao, S.Q. Gao, J.H. Gu, S.D. Gu, W.X. Gu, Y.N. Guo, Z.J. Guo, S.W. Han, Y. Han, J. He, J.T. He, K.L. He, M. He, Y.K. Heng, G.Y. Hu, H.M. Hu, J.L. Hu, Q.H. Hu, T. Hu, G.S. Huang, X.P. Huang, Y.Z. Huang, C.H. Jiang, Y. Jin, X. Ju, Z.J. Ke, Y.F. Lai, P.F. Lang, C.G. Li, D. Li, H.B. Li, J. Li, J.C. Li, P.Q. Li, W. Li, W.G. Li, X.H. Li, X.N. Li, X.Q. Li, Z.C. Li, B. Liu, F. Liu, Feng Liu, H.M. Liu, J. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, X.L. Luo, E.C. Ma, J.M. Ma, H.S. Mao, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, N.D. Qi, X.R. Qi, C.D. Qian, J.F. Qiu, Y.H. Qu, Y.K. Que, G. Rong, Y.Y. Shao, B.W. Shen, D.L. Shen, H. Shen, H.Y. Shen, X.Y. Shen, F. Shi, H.Z. Shi, X.F. Song, H.S. Sun, L.F. Sun, Y.Z. Sun, S.Q. Tang, G.L. Tong, F. Wang, L. Wang, L.S. Wang, L.Z. Wang, P. Wang, P.L. Wang, S.M. Wang, Y.Y. Wang, Z.Y. Wang, C.L. Wei, N. Wu, Y.G. Wu, D.M. Xi, X.M. Xia, Y. Xie, Y.H. Xie, G.F. Xu, S.T. Xue, J. Yan, W.G. Yan, C.M. Yang, C.Y. Yang, H.X. Yang, X.F. Yang, M.H. Ye, S.W. Ye, Y.X. Ye, C.S. Yu, C.X. Yu, G.W. Yu, Y.H. Yu, Z.Q. Yu, C.Z. Yuan, Y. Yuan, B.Y. Zhang, C. Zhang, C.C. Zhang, D.H. Zhang, Dehong Zhang, H.L. Zhang, J. Zhang, J.W. Zhang, L. Zhang, Lei Zhang, L.S. Zhang, P. Zhang, Q.J. Zhang, S.Q. Zhang, X.Y. Zhang, Y.Y. Zhang, D.X. Zhao, H.W. Zhao, Jiawei Zhao, J.W. Zhao, M. Zhao, W.R. Zhao, Z.G. Zhao, J.P. Zheng, L.S. Zheng, Z.P. Zheng, B.Q. Zhou, L. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, D.V. Bugg, and B.S. Zou
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Near threshold, Particle physics, Phase space, Partial wave analysis, Pi, Resonance, High Energy Physics::Experiment, Nuclear Experiment, Bar (unit)
Abstract: BES data on $J/\psi \to \gamma (K^+K^-\pi^+\pi^-)$ are presented. The $K^*\bar K^*$ contribution peaks strongly near threshold. It is fitted with a broad $0^{-+}$ resonance with mass $M = 1800 \pm 100$ MeV, width $\Gamma = 500 \pm 200$ MeV. A broad $2^{++}$ resonance peaking at 2020 MeV is also required with width $\sim 500$ MeV. There is further evidence for a $2^{-+}$ component peaking at 2.55 GeV. The non-$K^*\bar K^*$ contribution is close to phase space; it peaks at 2.6 GeV and is very different from $K^{*}\bar{K^{*}}$.
Published: 2000
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14. Partial wave analysis of J/ψ→γ(π+π−π+π−)

Author: J.Z. Bai, Y. Ban, J.G. Bian, A.D. Chen, G.P. Chen, H.F. Chen, H.S. Chen, J.C. Chen, X.D. Chen, Y. Chen, Y.B. Chen, B.S. Cheng, X.Z. Cui, H.L. Ding, L.Y. Dong, Z.Z. Du, C.S. Gao, M.L. Gao, S.Q. Gao, J.H. Gu, S.D. Gu, W.X. Gu, Y.N. Guo, Z.J. Guo, S.W. Han, Y. Han, J. He, J.T. He, K.L. He, M. He, Y.K. Heng, G.Y. Hu, H.M. Hu, J.L. Hu, Q.H. Hu, T. Hu, G.S. Huang, X.P. Huang, Y.Z. Huang, C.H. Jiang, Y. Jin, X. Ju, Z.J. Ke, Y.F. Lai, P.F. Lang, C.G. Li, D. Li, H.B. Li, J. Li, J.C. Li, P.Q. Li, W. Li, W.G. Li, X.H. Li, X.N. Li, X.Q. Li, Z.C. Li, B. Liu, F. Liu, Feng Liu, H.M. Liu, J. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, X.L. Luo, E.C. Ma, J.M. Ma, H.S. Mao, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, N.D. Qi, X.R. Qi, C.D. Qian, J.F. Qiu, Y.H. Qu, Y.K. Que, G. Rong, Y.Y. Shao, B.W. Shen, D.L. Shen, H. Shen, H.Y. Shen, X.Y. Shen, F. Shi, H.Z. Shi, X.F. Song, H.S. Sun, L.F. Sun, Y.Z. Sun, S.Q. Tang, G.L. Tong, F. Wang, L. Wang, L.S. Wang, L.Z. Wang, P. Wang, P.L. Wang, S.M. Wang, Y.Y. Wang, Z.Y. Wang, C.L. Wei, N. Wu, Y.G. Wu, D.M. Xi, X.M. Xia, Y. Xie, Y.H. Xie, G.F. Xu, S.T. Xue, J. Yan, W.G. Yan, C.M. Yang, C.Y. Yang, H.X. Yang, X.F. Yang, M.H. Ye, S.W. Ye, Y.X. Ye, C.S. Yu, C.X. Yu, G.W. Yu, Y.H. Yu, Z.Q. Yu, C.Z. Yuan, Y. Yuan, B.Y. Zhang, C. Zhang, C.C. Zhang, D.H. Zhang, Dehong Zhang, H.L. Zhang, J. Zhang, J.W. Zhang, L. Zhang, Lei Zhang, L.S. Zhang, P. Zhang, Q.J. Zhang, S.Q. Zhang, X.Y. Zhang, Y.Y. Zhang, D.X. Zhao, H.W. Zhao, Jiawei Zhao, J.W. Zhao, M. Zhao, W.R. Zhao, Z.G. Zhao, J.P. Zheng, L.S. Zheng, Z.P. Zheng, B.Q. Zhou, L. Zhou, K.J. Zhu, Q.M. Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, D.V. Bugg, B.S. Zou, and I. Scott
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Electron–positron annihilation, Partial wave analysis, Pi, Atomic physics
Published: 2000
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15. Partial wave analysis of J/ψ→γ(K+K−π0)

Author: J.Z Bai, J.G Bian, Z.W Chai, G.P Chen, H.F Chen, J.C Chen, Y Chen, Y.B Chen, Y.Q Chen, B.S Cheng, X.Z Cui, H.L Ding, L.Y Dong, Z.Z Du, S Feng, C.S Gao, M.L Gao, S.Q Gao, J.H Gu, S.D Gu, W.X Gu, Y.F Gu, Y.N Guo, Z.J Guo, S.W Han, Y Han, J He, J.T He, M He, G.Y Hu, H.M Hu, J.L Hu, Q.H Hu, T Hu, X.Q Hu, J.D Huang, Y.Z Huang, C.H Jiang, Y Jin, Z.J Ke, Y.F Lai, P.F Lang, C.G Li, D Li, H.B Li, J Li, P.Q Li, R.B Li, W Li, W.D Li, W.G Li, X.H Li, X.N Li, H.M Liu, J Liu, J.H Liu, R.G Liu, Y Liu, F Lu, J.G Lu, J.Y Lu, L.C Lu, C.H Luo, A.M Ma, E.C Ma, J.M Ma, H.S Mao, Z.P Mao, X.C Meng, J Nie, N.D Qi, X.R Qi, C.D Qian, J.F Qiu, Y.H Qu, Y.K Que, G Rong, Y.Y Shao, B.W Shen, D.L Shen, H Shen, X.Y Shen, H.Y Sheng, H.Z Shi, X.F Song, F Sun, H.S Sun, S.Q Tang, G.L Tong, F Wang, L.S Wang, L.Z Wang, M Wang, Meng Wang, P Wang, P.L Wang, S.M Wang, T.J Wang, Y.Y Wang, C.L Wei, Y.G Wu, D.M Xi, X.M Xia, P.P Xie, Y Xie, Y.H Xie, W.J Xiong, C.C Xu, G.F Xu, S.T Xue, J Yan, W.G Yan, C.M Yang, C.Y Yang, J Yang, X.F Yang, M.H Ye, S.W Ye, Y.X Ye, K Yi, C.S Yu, C.X Yu, Y.H Yu, Z.Q Yu, Z.T Yu, C.Z Yuan, Y Yuan, B.Y Zhang, C.C Zhang, D.H Zhang, Dehong Zhang, H.L Zhang, J Zhang, J.L Zhang, J.W Zhang, L.S Zhang, Q.J Zhang, S.Q Zhang, X.Y Zhang, Y Zhang, Y.Y Zhang, D.X Zhao, H.W Zhao, J.W Zhao, M Zhao, W.R Zhao, Z.G Zhao, J.P Zheng, L.S Zheng, Z.P Zheng, G.P Zhou, H.S Zhou, L Zhou, Q.M Zhu, Y.C Zhu, Y.S Zhu, B.A Zhuang, D.V Bugg, A.V Sarantsev, and B.S Zou
Subjects: Physics, Nuclear and High Energy Physics, Annihilation, Partial wave analysis, Pi, Analytical chemistry, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment
Abstract: A partial wave analysis of BES J/psi --> gamma(eta pi(+)pi(-)) data has been performed in the mass region 1.1 to 2.0 GeV. A peak is observed due to eta(1440) in the eta pi(+)pi(-) invariant mass distribution; J(P) = 0(-) is preferred over li. Its mass is M = 1385 +/- 7 MeV and it decays into both eta sigma and a(0)(980)pi, with BR[a(0)(980)pi, a(0) --> eta pi/eta sigma] = 0.70 +/- 0.12(stat) +/- 0.20(syst). Destructive interference between the two decay modes is observed. In addition, in the higher eta pi(+)pi(-) mass region, there is a definite 2(-+) signal, with M = 1840 +/- 15 MeV and Gamma = 170 +/- 40 MeV and an additional 0(-+) signal at 1760 +/- 35 MeV. We also find a possible contribution from a 1(++) signal decaying dominantly through a(0)(980)pi; its mass and width are fitted to be M = 1505 +/- 20 MeV and Gamma = 130(-20)(+50) MeV. (C) 1999 Elsevier Science B.V. All rights reserved.
Published: 1998
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16. An Analysis of Singularity in Single Fibre Pull-Out Test Using BEM

Author: Ying Dai, X. Ji, Jang Kyo Kim, and S.T. Xue
Subjects: Physics, Fiber pull-out, Mathematical optimization, Singularity, Mechanics of Materials, Mechanical Engineering, Singularity exponent, Mathematical analysis, General Materials Science, Stress singularity, Single fibre
Published: 1997
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17. Search for neutral Higgs bosons from supersymmetry in Z decays

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, T.H. Burnett, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, E. Aubourg, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Aubourg, E, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Elementary particle, Supersymmetry, lcsh:QC1-999, Standard Model, Pseudoscalar, symbols.namesake, Higgs boson, symbols, High Energy Physics::Experiment, Higgs mechanism, Particle Physics - Experiment, lcsh:Physics, Minimal Supersymmetric Standard Model, Boson
Abstract: The light scalar Higgs boson h and the pseudoscalar Higgs boson A of the minimal supersymmetric standard model have been searched for in the processes e+e−→hff and e+e−→hA using data collected by ALEPH at the LEP e+e− collider, with center of mass energies at and near the Z peak. Using a variety of signatures adapted to various mass ranges for h and A, we have excluded a large domain in the parameter space. For large values of ν2ν1, the ratio of the vacuum expectation values of the two Higgs fields, the whole range from 0 to 38.8 GeV is excluded for Mh and MA at 95% CL.
Published: 1990

18. Search for supersymmetric particles using acoplanar charged-particle pairs from Z0 decays

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, F. Bird, E. Blucher, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, J. Richstein, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R.St. Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, P. Miné, A. Rougé, M. Rumpf, H. Videau, I. Videau, D. Zwierski, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'Neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, A.M. Greene, S. Dugeay, R.W. Forty, J.F. Hassard, S. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, F. Etienne, R. Nacasch, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.-M. Lutz, P. Marotte, J.-J. Veillet, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, D.L. Hill, T.J. Jones, M. Morrissey, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, K. Stupperich, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Mastrogiacomo, A, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Chen, Y, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Bird, F, Blucher, E, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Mertens, V, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Richstein, J, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Prat, J, Proriol, J, Prulhiere, F, Bertelsen, H, Hansen, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Lindahl, A, Madsen, B, Mollerud, R, Nilsson, B, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Bernard, D, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Mine, P, Rouge, A, Rumpf, M, Videau, H, Videau, I, Zwierski, D, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Flavell, Aj, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Martin, Dj, Oneill, R, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Greene, Am, Dugeay, S, Forty, Rw, Hassard, Jf, Patton, S, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Etienne, F, Nacasch, R, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Comin, M, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Stimpfl, G, Thomas, J, Waltermann, G, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lloydowen, D, Lutz, Am, Marotte, P, Veillet, Jj, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Bj, Green, Mg, Mckemey, Ak, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Hill, Dl, Jones, Tj, Morrissey, M, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Stupperich, K, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Electron–positron annihilation, High Energy Physics::Phenomenology, Elementary particle, Supersymmetry, Charged particle, Nuclear physics, Chargino, High Energy Physics::Experiment, Photino, Particle Physics - Experiment, Boson
Abstract: We have performed a search for supersymmetric particles using acoplanar pairs of oppositely-charged particles in decays of the Z0. In 0.53 pb−1 of integrated luminosity near the Z0 peak, we observe two events where approximately four are expected from background, allowing limits to be extended on combined photino and slepton masses, and also on combined photino and chargino masses.
Published: 1990
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19. Properties of hadronic events in e+e− annihilation at

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, M.L. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, F. Bird, E. Blucher, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, J. Richstein, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, R. Guirlet, P. Miné, A. Rougé, H. Videau, I. Videau, D. Zwierski, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. de Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'Neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, J.F. Hassard, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, P. Girtler, D. Kuhn, G. Rudolph, T.J. Brodbeck, C.K. Bowdery, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, D. Pollmann, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, F. Etienne, R. Nacasch, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. De Bouard, J. Boucrot, O. Callot, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.-M. Lutz, P. Marotte, J.-J. Veillet, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, D.L. Hill, T.J. Jones, M. Morrissey, P.r. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, K. Stupperich, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Roland, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, and G. Zobernig
Subjects: Physics, Nuclear physics, Quantum chromodynamics, Nuclear and High Energy Physics, Aleph, Particle physics, Annihilation, Large Hadron Collider, Electron–positron annihilation, Hadron, Large Electron–Positron Collider, High Energy Physics::Experiment, Sphericity
Abstract: We report on properties of hadronic events from e+e− annihilation observed by the ALEPH detector at the large Electron Positron Collider at CERN. The center-of-mass energy was . Measured distributions of the global event-shape variables sphericity, aplanarity, thrust and minor value, and of the inclusive variables xp, p⊥in, p⊥out and y are presented. We measure a mean charged multiplicity in hadronic events of 〈Nch〉=21.3±0.1 (statistical)±0.6 (systematic). The data are in good agreement with QCD-based models which use the leading-logarithm approximation, and are less well described by a model using O(αs2) QCD.
Published: 1990
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20. BESII Detector Simulation

Author: Gongru Lu, Cheng-Kui Li, X. H. Mo, S. P. Chi, J. F. Chang, Guangzhao Zhou, T. Hu, XZ（蔡翔舟） Cai, S. L. Zang, H. S. Chen, J. M. Yuan, B.S. Cheng, J. B. Zhao, S.L. Olsen, Wei Li, F. C. Ma, Shengsen Sun, G. W. Yu, Lianyou Shan, Q. J. Li, Z.Z. Du, F.J. Lu, X. Y. Shen, Zhe Wang, X. C. Zhong, Bo Xin, Y. B. Chen, Hangxu Li, Y. Z. Sun, J. Chen, G. F. Xu, H.B. Liao, Yuekun Heng, J. Z. Bai, Y. Jin, Y. Q. Guo, J. F. Qiu, P. L. Wang, Y.X. Yang, Y.N. Gao, Bingxin Zhang, R. Y. Li, Yudan Wang, Nan Zhou, Y. P. Chu, Yao Zhu, M. Wang, J. Fang, Junguang Lu, X. B. Ji, Li Zhou, H. M. Hu, H. F. Chen, J. Nie, Y. Guo, Y. B. Zhao, X. J. Zhao, C. D. Qian, Q. M. Ma, H. H. Liu, Xiru Huang, Y.L. Li, Shang Lunlin, Jiehao Zhang, Z. A. Zhu, J. H. Liu, X. Q. Li, Junqiang Zhang, X. L. Luo, G. Li, H. Y. Sheng, X. B. Ma, Xuai Zhuang, Zhangli Liu, Dixin Zhao, L. H. Yi, Jianwei Sun, Yingchun Zhu, Y. M. Wu, X.L. Li, M. Ye, Y. Yuan, Juan Zhang, Yuezhao Zhang, C. D. Fu, G. S. Huang, C. Z. Yuan, C. C. Zhang, J. Z. Wang, D.L. Shen, Z. Y. Deng, Zhen Wang, Qiyang Zhang, Huai-Min Liu, H. Qin, D.H. Wei, L. Y. Dong, Weiping Wang, G.L. Tong, Hong Sun, J. W. Zhao, Y. S. Dai, J.G. Bian, J. Yang, G. S. Varner, Hangkun Xu, P. Wang, Cuishan Gao, H. Y. Fu, Y. C. Zhu, Lifang Zheng, Y. F. Liang, Y. Zeng, Xingtao Huang, Jinxing Zheng, Cunfeng Wei, S. Gu, N. Wu, C. L. Luo, D. P. Jin, Q. F. Dong, Yiyun Zhang, Yi Jin, Jun Chen, M. He, Houbing Lu, Xunchao Zhang, M. L. Chen, Jun-Bing Ma, Nongjian Tao, Xuan Zhang, L. S. Wang, F. A. Harris, C. X. Liu, Z. Liu, X. Y. Ma, W. X. Gong, J. Li, Y. X. Ye, L. L. Ma, Z.Q. Zhang, L. X. Luo, D. H. Zhang, M. G. Zhao, Yu Zeng, C. S. Yu, X. S. Jiang, Zhengguo Zhao, Y.F. Lai, X. Shi, Zheng Wang, Zhenyu Zhang, B. X. Zhang, He Kai, K. J. Zhu, Zong-Ping Zheng, M. H. Ye, M. Ablikim, Fang Liu, Z. J. Sun, M. Y. Gong, Huajian Zhang, J. C. Li, Y. Ban, S.X. Du, He-Run Yang, P.P. Zhao, Haiping Peng, N.D. Qi, W.R. Zhao, B.A. Zhuang, Kelin Wang, F. Y. Li, Z. D. Nie, J. P. Liu, Jiang Changhui, H. L. Dai, Bin Zhou, Z. P. Mao, X. H. He, H.Q. Zheng, X.M. Xia, X. X. Xie, Z.J. Guo, Qiangqiang Zhu, S. Z. Wang, X. W. Tang, Hailong Ma, Jin Chen, S. S. Fang, J. Liu, Bing-Song Zou, Z. Y. Yi, F. Liu, S. M. Li, Fan Yang, Shi-Lun Jin, S. Q. Zhang, L. L. Wang, S.T. Xue, D. Y. Wang, R.G. Liu, Z. Y. Ren, G. Rong, Xingzhu Cui, Yang Tian, M. L. Yan, and Feng Shi
Subjects: Physics, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Monte Carlo method, Detector, Computer Science::Programming Languages, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Instrumentation, Computational science
Abstract: A Monte Carlo program based on Geant3 has been developed for BESII detector simulation. The organization of the program is outlined, and the digitization procedure for simulating the response of various sub-detectors is described. Comparisons with data show that the performance of the program is generally satisfactory., Comment: 17 pages, 14 figures, uses elsart.cls, to be submitted to NIMA
Published: 2005
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21. A Measurement of Psi(2S) Resonance Parameters

Author: J.Z Bai, Y Ban, J.G Bian, I Blum, X Cai, J.F Chang, H.F Chen, H.S Chen, J Chen, Jie Chen, 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, Meng Wang, P Wang, P.L Wang, W.F Wang, Y.F Wang, Y.Y Wang, Z Wang, Zheng 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, Yiyun Zhang, Z.P Zhang, D.X Zhao, Jiawei Zhao, 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, and B.S Zou
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Hadron, FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Pi, High Energy Physics::Experiment
Abstract: Cross sections for e+e- to hadons, pi+pi- J/Psi, and mu+mu- have been measured in the vicinity of the Psi(2S) resonance using the BESII detector operated at the BEPC. The Psi(2S) total width; partial widths to hadrons, pi+pi- J/Psi, muons; and corresponding branching fractions have been determined to be Gamma(total)= (264+-27) keV; Gamma(hadron)= (258+-26) keV, Gamma(mu)= (2.44+-0.21) keV, and Gamma(pi+pi- J/Psi)= (85+-8.7) keV; and Br(hadron)= (97.79+-0.15)%, Br(pi+pi- J/Psi)= (32+-1.4)%, Br(mu)= (0.93+-0.08)%, respectively., Comment: 8 pages, 6 figures
Published: 2002
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22. Search for excited leptons in Z0 decay

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, T.H. Burnett, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R.St. Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhiére, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Catteneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foá, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, E. Aubourg, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Millotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, I, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Aubourg, E, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Operations research, business.industry, Knowledge engineering, Plan (drawing), Asset (computer security), Electric power system, Software, Knowledge base, Case-based reasoning, Unavailability, business, Particle Physics - Experiment
Abstract: Due to the severity of system-wide power outages, though their probability of occurrence is slight, regulatory authorities require that a system restoration plan be drawn up and kept up to date at all times. The power outage that affected northeastern North America in 2003 proved the need for such a requirement. The particular structure of Hydro-Quebec's power system requires the use of a highly specific system restoration procedure. The daily preparation of the system restoration plan is based on a strategy whose application requires that a restoration sequence be drawn up that uses available equipment, the electrical behavior of which has been validated using appropriate studies. Over the years, Hydro-Quebec has accumulated a sizeable pool of knowledge that brings together all the solutions already studied. System restoration planners use their know-how to find the best solution, determine whether it is appropriate, and proceed to apply it. When required, new solutions must be developed. The new RECRE software program (French acronym for “Remise En Charge du Reseau” – System Restoration) has been implemented by Hydro-Quebec in 2005. The aim of this knowledge management system is to have system restoration knowledge become a tangible, growth-oriented and enhanceable asset. The system is made up of two modules: the knowledge engineering module, whereby modeling can be done of the system restoration strategy and known solutions in a knowledge base, and the planning module, whereby system restoration plans can be drawn up based on the unavailability of power system equipment. The RECRE system can produce a validated and adequate plan in a few seconds along with all the documents required for its dissemination. The RECRE system can also analyze in a few minutes all of the situations that apply to scheduled outages for the weeks that follow or the upcoming year. This allows solution gaps to be identified in the knowledge base.
Published: 1990

23. Determination of the Leptonic Branching Ratios of the Z

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, F. Bird, E. Blucher, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, J. Richstein, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, R. Guirlet, P. Miné, A. Rougé, H. Videau, I. Videau, D. Zwierski, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'Neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, E. Rensch, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, J.F. Hassard, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, F. Etienne, R. Nacasch, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. De Bouard, J. Boucrot, O. Callot, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.-M. Lutz, P. Marotte, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, D.L. Hill, T.J. Jones, M. Morrissey, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, K. Stupperich, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, null Sau Lan Wu, S.T. Xue, and G. Zobernig
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Partial width, Branching fraction, High Energy Physics::Phenomenology, Hadron, Branching (polymer chemistry), Nuclear physics, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment, Lepton, Boson
Abstract: The ratios of the numbers of Z bosons decaying to e+e−, μ+μ− and τ+τ− pairs to the number decaying to hadrons have been measured. The branching ratios and partial widths for each channel were determined and found to be equal, consistent with lepton universality. The mean leptonic branching ratio was found to be 0.0321 ± 0.0013 and the leptonic partial width to be 85.4 ± 5.3 MeV. The partial widths for hadronic decays and for invisible decays were deduced to be 1833 ± 116 MeV and 569 ± 92 MeV, respectively. The number of light neutrino types, assuming only the standard model value for the ratio Θ e Θ v , was found to be 3.35 ± 0.41.
Published: 1990

24. ALEPH: a Detector for Electron-Positron Annihilations at LEP

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, L.I.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, A. Mastrogiacomo, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Chen, H. Hu, D. Huang, Y. Jiang, J. Lin, R. Liu, W. Lu, T. Ruan, T. Wang, X. Wang, D. Wu, W. Wu, Y. Xie, D. Xu, R. Xu, Y. Xu, W. Yan, M. Ye, J. Zhang, H. Zhao, W. Zhao, H. Albrecht, A. Ball, F. Bird, E. Blucher, T. Charity, H. Drevermann, F. Dydak, M. Ferro-Luzzi, Ll. Garrido, C. Grab, R. Grub, R. Hagelberg, S. Haywood, B. Ivesdal, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, P. Lazeyras, I. Lehraus, B. Lofstedt, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J.M. Maugain, J. May, V. Mertens, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, R. Pintus, L. Pregernig, M. Price, F. Ranjard, J. Richstein, W. Richter, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St. Denis, P. Schilly, D. Schllater, G. Stefanini, M. Takashima, M. Talby, J.C. Tarle, H. Taureg, W. Tejessy, H. Verweij, H. Wachsmuth, H. Wahl, S. Wheeler, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, M. Brossard, R. Chadelas, F. Daudon, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J.-C. Montret, D. Pallin, P. Perret, J. Prat, J. Proriol, F. Prulhière, H. Bertelsen, F. Hansen, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Lindahl, B. Madsen, R. Møllerud, B.S. Nilsson, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, D. Bernard, M. Bercher, U. Berthon, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, A. Busata, M.A. Ciocci, Ph. Delcroz, G. Fouque, R. Guirlet, C. Lemoine, P. Matricon, M. Maubras, R. Morano, P. Miné, J.Y. Parey, P. Poilleux, A. Rougé, C. Roy, M. Rumpf, H. Videau, I. Videau, C. Violet, D. Zwierski, D.J. Candlin, A.J. Main, A. Conti, G. Parrini, E. Scarlini, W. Burley, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. Corradi, G. De Ninno, B. D'ettorre-Piazzoli, B. Dulach, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, M. Pallotta, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.J. Flavell, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, D.J. Martin, R. O'neill, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, J. Wells, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, W. Heyde, E.E. Kluge, J. Krause, Y. Maumary, M. Panter, A. Putzer, B. Rensch, K. Schmitt, A. Stahl, K. Tittel, M. Wunsch, G.J. Barber, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, D.N. Gentry, P. Heinson, M. MacDermott, D.G. Miller, D.R. Price, J.K. Sedgbeer, G. Taylor, A.P. White, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, D. Pollmann, B. Renk, S. Roehn, M. Schmelling, K. Schmitz, F. Steeg, J-P. Albanese, J-J. Aubert, G. Barrand, R. Bazzoli, C. Benchouk, A. Bonissent, A. Ealet-Grousset, F. Etienne, Y. Gally, E. Kajfasz, R. Nacasch, P. Payre, B. Pietrzyk, J. Raguet, Z. Qian, H. Becker, W. Blum, T. Boulos, P. Cattaneo, M. Comin, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, G. Stimpfl, J. Thomas, G. Waltermann, G. Aioun, J.N. Albert, Ch. Arnault, G. De Bouard, J. Boucrot, O. Callot, R. Chase, A. Cordier, M. Davier, M. Dialinas, A. Ducorps, D. Fournier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, P. Jean, V. Journé, D.W. Kim, J. Lefrançois, D. Lloyd-Owen, A.M. Lutz, P. Marotte, J.J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, A. Bechini, F. Bosi, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foa, E. Focardi, F. Forti, S. Galeotti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, D. Passuello, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, B.J. Green, M.G. Green, A.K. McKemey, P.V. March, T. Medcalf, M.R. Saich, N.M. Stewart, J.A. Strong, R.M. Thomas, T. Wildish, E.H. Bellamy, J. Bizzel, D.R. Botterill, R.W. Clifft, I.F. Corbett, T.R. Edgecock, M. Edwards, J.S.M. Fisher, J. Harvey, D.L. Hill, E. Holtom, T.J. Jones, S. Madani Bozorg, G. McPherson, D.R. Moore, M. Morrissey, A. Nichols, P.R. Norton, D.P. Salmon, G.J. Tappern, J.C. Thompson, A. Tucker, R. Bernard, B. Bloch-Devaux, H. Desportes, J. Heitzmann, M. Jacquemet, A. Joudon, E. Locci, J.C. Lottin, S. Loucatos, P. Micolon, J. Pascual, B. Pignard, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, R. Turlay, J.G. Ashman, C.N. Booth, C. Buttar, R. Carney, S.L. Cartwright, F. Combley, M. Dinsdale, M. Dogru, F. Hatfield, J. Martin, D. Parker, P. Reeves, L.F. Thompson, S. Brandt, H. Burkhardt, G. Gillessen, C. Grupen, H. Meinhard, E. Neugebauer, M. Olpp, W.U. Otto, M. Roschangar, U. Schäfer, R. Seibert, H. Seywerd, K. Stupperich, L. Wurmbach, B. Gobbo, F. Liello, A. Mansutti, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, A. Caldwell, D. Cinabro, M. Convery, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, J. Izen, R.C. Jared, R.P. Johnson, B.W. LeClaire, T.C. Meyer, D. Muller, Y.B. Pan, T. Parker, J.R. Pater, S. Ritz, Y. Saadi, V. Sharma, D. Strom, J.A. Wear, F.V. Weber, E. Wicklund, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Mastrogiacomo, A, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Chen, Y, Hu, H, Huang, D, Jiang, Y, Lin, J, Liu, R, Lu, W, Ruan, T, Wang, T, Wang, X, Wu, D, Wu, W, Xie, Y, Xu, D, Xu, R, Xu, Y, Yan, W, Ye, M, Zhang, J, Zhao, H, Zhao, W, Albrecht, H, Ball, A, Bird, F, Blucher, E, Charity, T, Drevermann, H, Dydak, F, Ferroluzzi, M, Garrido, L, Grab, C, Grub, R, Hagelberg, R, Haywood, S, Ivesdal, B, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lazeyras, P, Lehraus, I, Lofstedt, B, Lohse, T, Luke, D, Marchioro, A, Mato, P, Maugain, Jm, May, J, Mertens, V, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Pintus, R, Pregernig, L, Price, M, Ranjard, F, Richstein, J, Richter, W, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schilly, P, Schlatter, D, Stefanini, G, Takashima, M, Talby, M, Tarle, Jc, Taureg, H, Tejessy, W, Verweij, H, Wachsmuth, H, Wahl, H, Wheeler, S, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Brossard, M, Chadelas, R, Daudon, F, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Prat, J, Proriol, J, Prulhiere, F, Bertelsen, H, Hansen, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Lindahl, A, Madsen, B, Mollerud, R, Nilsson, B, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Bernard, D, Bercher, M, Berthon, U, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Busata, A, Ciocci, Ma, Delcroz, P, Fouque, G, Guirlet, R, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Mine, P, Parey, Jy, Poilleux, P, Rouge, A, Roy, C, Rumpf, M, Videau, H, Videau, I, Violet, C, Zwierski, D, Candlin, Dj, Main, Aj, Conti, A, Parrini, G, Scarlini, E, Burley, W, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Corradi, G, Deninno, G, Dettorrepiazzoli, B, Dulach, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Pallotta, M, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Flavell, Aj, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Martin, Dj, Oneill, R, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Wells, J, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Heyde, W, Kluge, Ee, Krause, J, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Schmitt, K, Stahl, A, Tittel, K, Wunsch, M, Barber, Gj, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Gentry, Dn, Heinson, Ap, Macdermott, M, Miller, Dg, Price, Dr, Sedgbeer, Jk, Taylor, G, White, Ap, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Pollmann, D, Renk, B, Roehn, S, Schmelling, M, Schmitz, K, Steeg, F, Albanese, Jp, Aubert, Jj, Barrand, G, Bazzoli, R, Benchouk, C, Bonissent, A, Ealetgrousset, A, Etienne, F, Gally, Y, Kajfasz, E, Nacasch, R, Payre, P, Pietrzyk, B, Raguet, J, Qian, Z, Becker, H, Blum, W, Boulos, T, Cattaneo, P, Comin, M, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Stimpfl, G, Thomas, J, Waltermann, G, Aioun, G, Albert, Jn, Arnault, C, Debouard, G, Boucrot, J, Callot, O, Chase, R, Cordier, A, Davier, M, Dialinas, M, Ducorps, A, Fournier, D, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Jean, P, Journe, V, Kim, Dw, Lefrancois, J, Lloydowen, D, Lutz, Am, Marotte, P, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bechini, A, Bosi, F, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Galeotti, S, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Passuello, D, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Bj, Green, Mg, Mckemey, Ak, March, Pv, Medcalf, T, Saich, Mr, Stewart, Nm, Strong, Ja, Thomas, Rm, Wildish, T, Bellamy, Eh, Bizzell, J, Botterill, Dr, Clifft, Rw, Corbett, If, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Hill, Dl, Holtom, E, Jones, Tj, Bozorg, Sm, Mcpherson, G, Moore, Dr, Morrissey, M, Nichols, A, Norton, Pr, Salmon, Dp, Tappern, Gj, Thompson, Jc, Tucker, A, Bernard, R, Blochdevaux, B, Desportes, H, Heitzmann, J, Jacquemet, M, Joudon, A, Locci, E, Lottin, Jc, Loucatos, S, Micolon, P, Pascual, J, Pignard, B, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Turlay, R, Ashman, Jg, Booth, Cn, Buttar, C, Carney, R, Cartwright, Sl, Combley, F, Dinsdale, M, Dogru, M, Hatfield, F, Martin, J, Parker, D, Reeves, P, Thompson, Lf, Brandt, S, Burkhardt, H, Gillessen, G, Grupen, C, Meinhard, H, Neugebauer, E, Olpp, M, Otto, Wu, Roschangar, M, Schafer, U, Seibert, R, Seywerd, H, Stupperich, K, Wurmbach, L, Gobbo, B, Liello, F, Mansutti, A, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Caldwell, A, Cinabro, D, Convery, M, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Izen, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Meyer, Tc, Muller, D, Pan, Yb, Parker, T, Pater, Jr, Ritz, S, Saadi, Y, Sharma, V, Strom, D, Wear, Ja, Weber, Fv, Wicklund, E, Wu, Sl, Xue, St, Zobernig, G., Milotti, Edoardo, and Aleph, Collaboration
Subjects: Physics, Flexibility (engineering), Nuclear and High Energy Physics, Aleph, high-energy physics, Process modeling, Process (engineering), business.industry, Software development, LEP, Automation, particle detectors, Data acquisition, Detectors and Experimental Techniques, Software engineering, business, Enforcement, Instrumentation, particle detector
Abstract: Process-centred Software Engineering Environments (PSEE) are the most recent generation of environments supporting software development activities. Most of PSEE are based on mechanisms promoting enforcement and automation of process activities. In this kind of mechanisms the process models are prescribed in a detailed and complete way. But the experience shows that supporting processes is more concerned with the flexibility of guidance offered during the process performance than with enforcement of a collection of predefined process models. In this paper, we present a solution to support strategic processes in a PSEE by providing a flexible guidance during process enactment.
Published: 1990

25. Search For the Neutral Higgs Boson From Z0 Decay In the Higgs Mass Range Between 11 and 24 Gev

Author: D. Decamp, B. Deschizeaux, J.-P. Lees, M.-N. Minard, J.M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, S. Jin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, Z. Zhang, W. Zhao, H. Albrecht, W.B. Atwood, F. Bird, E. Blucher, T.H. Burnett, T. Charity, H. Drevermann, Ll. Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. von Rüden, R.ST. Denis, D. Schlatter, M. Takashima, M. talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J-C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J.D. Hansen, J.R. Hansen, P.H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J.C. Brient, M.A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D.J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J.H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. de Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A.W. Halley, I. Ten Have, J.L. Hearns, I.S. Hughes, J.G. Lynch, W.T. Morton, C. Raine, J.M. Scarr, K. Smith, A.S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A.T. Belk, R. Beuselinck, D.M. Binnie, W. Cameron, M. Cattaneo, P.J. Dornan, S. Dugeay, R.W. Forty, A.M. Greene, J.F. Hassard, S.J. Patton, J.K. Sedgbeer, G. Taylor, I.R. Tomalin, A.G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C.K. Bowdery, T.J. Brodbeck, A.J. Finch, F. Foster, G. Hughes, N.R. Keemer, M. Nuttall, B.S. Rowlingson, T. Sloan, S.W. Snow, T. Barczewski, L.A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H.-G. Sander, M. Schmelling, F. Steeg, J.-P. Albanese, J.-J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H.-G. Moser, Y. Pan, R. Richter, A.S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. de Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J.-F. Grivaz, Ph. Heusse, P. Janot, V. Journé, D.W. Kim, J. Lefrançois, A.-M. Lutz, J.-J. Veillet, F. Zomer, S.R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M.A. Giorgi, F. Ligabue, A. Lusiani, E.B. Mannelli, P.S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J.M. Carter, M.G. Green, P.V. March, T. Medcalf, M.R. Saich, J.A. Strong, R.M. Thomas, T. Wildish, D.R. Botterill, R.W. Clifft, T.R. Edgecock, M. Edwards, S.M. Fisher, J. Harvey, T.J. Jones, P.R. Norton, D.P. Salmon, J.C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J.-F. Renardy, A. Roussarie, J.-P. Schuller, J.G. Ashman, C.N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L.F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J.F. Boudreau, D. Cinabro, J.S. Conway, D.F. Cowen, Z. Feng, J.L. Harton, J. Hilgart, R.C. Jared, R.P. Johnson, B.W. Leclaire, Y.B. Pan, T. Parker, J.R. Pater, Y. Saadi, V. Sharma, J.A. Wear, F.V. Weber, Sau Lan Wu, S.T. Xue, G. Zobernig, Decamp, D, Deschizeaux, B, Lees, Jp, Minard, Mn, Crespo, Jm, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, Lm, Orteu, S, Pacheco, A, Perlas, Ja, Tubau, E, Catanesi, Mg, Depalma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, Wb, Bird, F, Blucher, E, Burnett, Th, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Luke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepealtarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Vonruden, W, Stdenis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadinotwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, Jc, Pallin, D, Perret, P, Proriol, J, Prulhiere, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Mollerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, Jc, Ciocci, Ma, Fouque, G, Guirlet, R, Rouge, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, Dj, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, Jh, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Deninno, G, Dettorrepiazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, Aw, Tenhave, I, Hearns, Jl, Hughes, I, Lynch, Jg, Morton, Wt, Raine, C, Scarr, Jm, Smith, K, Thompson, A, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, At, Beuselinck, R, Binnie, Dm, Cameron, W, Cattaneo, M, Dornan, Pj, Dugeay, S, Forty, Rw, Greene, Am, Hassard, Jf, Patton, Sj, Sedgbeer, Jk, Taylor, G, Tomalin, Ir, Wright, Ag, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, Ck, Brodbeck, Tj, Finch, Aj, Foster, F, Hughes, G, Keemer, Nr, Nuttall, M, Rowlingson, B, Sloan, T, Snow, Sw, Barczewski, T, Bauerdick, Lat, Kleinknecht, K, Renk, B, Roehn, S, Sander, Hg, Schmelling, M, Steeg, F, Albanese, Jp, Aubert, Jj, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandezbosman, M, Hauff, D, Jahn, A, Lange, E, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, Debouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, Jf, Heusse, P, Janot, P, Journe, V, Kim, Dw, Lefrancois, J, Lutz, Am, Veillet, Jj, Zomer, F, Amendolia, Sr, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foa, L, Focardi, E, Forti, F, Giassi, A, Giorgi, Ma, Ligabue, Franco, Lusiani, Alberto, Mannelli, Eb, Marrocchesi, P, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, Jm, Green, Mg, March, Pv, Medcalf, T, Saich, Mr, Strong, Ja, Thomas, Rm, Wildish, T, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Edwards, M, Fisher, Sm, Harvey, J, Jones, Tj, Norton, Pr, Salmon, Dp, Thompson, Jc, Blochdevaux, B, Colas, P, Klopfenstein, C, Lancon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Ashman, Jg, Booth, Cn, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, Lf, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schafer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, Luigi, Bellantoni, L, Boudreau, Jf, Cinabro, D, Conway, J, Cowen, Df, Feng, Z, Harton, Jl, Hilgart, J, Jared, Rc, Johnson, Rp, Leclaire, Bw, Pan, Yb, Parker, T, Pater, Jr, Saadi, Y, Sharma, V, Wear, Ja, Weber, Fv, Wu, Sl, Xue, St, and Zobernig, G.
Subjects: Physics, Nuclear and High Energy Physics, Aleph, Particle physics, Range (particle radiation), Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Supersymmetry, Nuclear physics, Higgs boson, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment, Boson
Abstract: A search for the neutral Higgs boson in the mass range above 11 GeV (above the H 0 →b b threshold), using the process Z0→H0e+e−, Z0→H0μ+μ− and Z 0 → H 0 v v , is performed on data collected by the ALEPH detector corresponding to about 25 000 events of Z0→ hadrons. Combining all these processes, the mass range excluded is 11 GeV at 95% CL. Together with a previously published result from ALEPH, the mass range excluded is 32 MeV to 24 GeV at 95% CL. This result also extends the excluded mass region for neutral Higgs bosons from supersymmetry.
Published: 1990

26. Measurements of J/ψ→pp̄

Author: J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, J.F. Chang, H.F. Chen, H.S. Chen, H.X. Chen, J. Chen, J.C. Chen, Jun Chen, M.L. Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, H.L. Dai, Y.S. Dai, Z.Y. Deng, L.Y. Dong, S.X. Du, Z.Z. Du, J. Fang, S.S. Fang, C.D. Fu, H.Y. Fu, L.P. Fu, C.S. Gao, M.L. Gao, Y.N. Gao, M.Y. Gong, W.X. Gong, 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, H.M. Hu, T. Hu, G.S. Huang, L. Huang, X.P. Huang, X.B. Ji, Q.Y. Jia, C.H. Jiang, X.S. Jiang, D.P. Jin, S. Jin, Y. Jin, Y.F. Lai, F. Li, G. Li, H.H. Li, J. Li, J.C. Li, Q.J. Li, R.B. Li, R.Y. Li, S.M. Li, W. Li, W.G. Li, X.L. Li, X.Q. Li, X.S. Li, Y.F. Liang, H.B. Liao, C.X. Liu, Fang Liu, F. Liu, H.M. Liu, J.B. Liu, J.P. Liu, R.G. Liu, Y. Liu, Z.A. Liu, Z.X. Liu, G.R. Lu, F. Lu, J.G. Lu, C.L. Luo, X.L. Luo, F.C. Ma, J.M. Ma, L.L. Ma, X.Y. Ma, Z.P. Mao, X.C. Meng, X.H. Mo, J. Nie, Z.D. Nie, S.L. Olsen, H.P. Peng, N.D. Qi, C.D. Qian, H. Qin, J.F. Qiu, Z.Y. Ren, G. Rong, L.Y. Shan, L. Shang, D.L. Shen, X.Y. Shen, H.Y. Sheng, F. Shi, X. Shi, L.W. Song, H.S. Sun, S.S. Sun, Y.Z. Sun, Z.J. Sun, X. Tang, N. Tao, Y.R. Tian, G.L. Tong, G.S. Varner, D.Y. Wang, J.Z. Wang, L. Wang, L.S. Wang, M. Wang, Meng Wang, P. Wang, P.L. Wang, S.Z. Wang, W.F. Wang, Y.F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z.Y. Wang, C.L. Wei, N. Wu, Y.M. Wu, X.M. Xia, X.X. Xie, B. Xin, G.F. Xu, H. Xu, Y. Xu, S.T. Xue, M.L. Yan, W.B. Yan, F. Yang, H.X. Yang, J. Yang, S.D. Yang, Y.X. Yang, L.H. Yi, Z.Y. Yi, M. Ye, M.H. Ye, Y.X. Ye, C.S. Yu, G.W. Yu, C.Z. Yuan, J.M. Yuan, Y. Yuan, Q. Yue, S.L. Zang, Y. Zeng, B.X. Zhang, B.Y. Zhang, C.C. Zhang, D.H. Zhang, H.Y. Zhang, J. Zhang, J.M. Zhang, J.Y. Zhang, J.W. Zhang, L.S. Zhang, Q.J. Zhang, S.Q. Zhang, X.M. Zhang, X.Y. Zhang, Yiyun Zhang, Y.J. Zhang, Y.Y. Zhang, Z.P. Zhang, Z.Q. Zhang, D.X. Zhao, J.B. Zhao, J.W. Zhao, P.P. Zhao, W.R. Zhao, X.J. Zhao, Y.B. Zhao, Z.G. Zhao, H.Q. Zheng, J.P. Zheng, L.S. Zheng, Z.P. Zheng, X.C. Zhong, B.Q. Zhou, G.M. Zhou, L. Zhou, N.F. Zhou, K.J. Zhu, Q.M. Zhu, Yingchun Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, B.A. Zhuang, and B.S. Zou
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Angular distribution, Positron, Proton, Branching fraction, Analytical chemistry, High Energy Physics::Experiment, Electron, Bar (unit)
Abstract: The process J/\psi --> p \bar{p} is studied using 57.7 X 10^6 J/\psi events collected with the BESII detector at the Beijing Electron Positron Collider. The branching ratio is determined to be Br(J/\psi --> p \bar{p})=(2.26 +- 0.01 +- 0.14) X 10^{-3}, and the angular distribution is well described by \frac{dN}{d cos\theta_p}=1+\alpha\cos^2\theta_p with \alpha = 0.676 +- 0.036 +- 0.042, where \theta_p is the angle between the proton and beam directions. The value of \alpha obtained is in good agreement with the predictions of first-order QCD.
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26 results on '"S.T. Xue"'

1. EFFECTS OF DIFFERENT TILLAGE METHODS ON THE SOIL ENZYME ACTIVITY IN SORGHUM CULTIVATED LAND IN A HILLY ENVIRONMENT

2. Structural configuration and phase stability in the quaternary Heusler compounds CoCrYSb (Y=Sc,Ti, V)

3. Measurements of Cabibbo-suppressed hadronic decay fractions of charmed D0 and D+ mesons

4. Partial wave analysis of ψ′→π+π−π0 at BESII

5. Resonances in and

6. Study of J/ψ→ωK+K−

7. Measurement of cross sections for D0D¯0 and D+D− production in e+e− annihilation at s=3.773 GeV

8. The σ pole in J/ψ→ωπ+π−

9. A study of J/ψ→γγV(ρ,φ) decays with the BESII detector

10. Search for lepton flavor violation process J/ψ→eμ

11. Study of production from

12. Partial wave analysis of J/ψ→γ(K±KS0π∓)

13. Partial wave analysis of J/ψ→γ(K+K−π+π−)

14. Partial wave analysis of J/ψ→γ(π+π−π+π−)

15. Partial wave analysis of J/ψ→γ(K+K−π0)

16. An Analysis of Singularity in Single Fibre Pull-Out Test Using BEM

17. Search for neutral Higgs bosons from supersymmetry in Z decays

18. Search for supersymmetric particles using acoplanar charged-particle pairs from Z0 decays

19. Properties of hadronic events in e+e− annihilation at

20. BESII Detector Simulation

21. A Measurement of Psi(2S) Resonance Parameters

22. Search for excited leptons in Z0 decay

23. Determination of the Leptonic Branching Ratios of the Z

24. ALEPH: a Detector for Electron-Positron Annihilations at LEP

25. Search For the Neutral Higgs Boson From Z0 Decay In the Higgs Mass Range Between 11 and 24 Gev

26. Measurements of J/ψ→pp̄

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