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1. [Role of Dipeptidyl peptidase inhibitors in lung ischemia-reperfusion injury]

Author: Z L, Lu, M L, Gao, Y, Deng, B H, Liu, N, Li, and Q, Geng
Subjects: Dipeptidyl-Peptidase IV Inhibitors, Reperfusion Injury, Humans, Dipeptidyl-Peptidases and Tripeptidyl-Peptidases, Lung
Abstract: Lung ischemia-reperfusion injury (LIRI)is a common complication after lung transplantation and cardiopulmonary bypass. It is an important factor affecting the success rate of transplantation. Its specific pathogenesis has not yet been fully elucidated. It is very significant to find the targets and drugs for the prevention and treatment of LIRI in order to improving the utilization rate of "marginal donor lung" and the long-term survival rate of lung transplant patients. Dipeptidyl peptidase 4(DPP4) inhibitors are a class of oral hypoglycemic agents. Previous studies have shown that DPP4 inhibitors have a variety of pharmacological activities, including anti-inflammatory, anti-fibrotic, immunomodulatory and other extrapancreatic functions. Recent studies have shown that DPP4 inhibitors may alleviate LIRI through various mechanisms, including inhibiting inflammatory responses, reducing oxidative stress, regulating blood glucose levels, and activating autophagy. This article reviewed the clinical and preclinical applications and mechanisms of DPP4 inhibitors in LIRI.肺缺血再灌注损伤（LIRI）是肺移植、体外循环术后常见并发症，是影响移植成功率的重要因素，但其具体发病机制目前尚未被完全阐明。寻找防治LIRI的靶点和药物，对提高“边缘性供肺”利用率和肺移植患者的远期生存率具有重要的临床意义。二肽基肽酶4（DPP4）抑制剂是一类口服降糖药，既往研究显示DPP4抑制剂具有多种药理活性，包括抗炎、抗纤维化、免疫调节等多种胰腺外功能。最近的研究显示DPP4抑制剂可能通过抑制炎症反应、减轻氧化应激、调控血糖水平和激活自噬等多种机制减轻LIRI。本文就DPP4抑制剂在LIRI中的临床及临床前应用和作用机制进行综述。.
Published: 2022

2. Mapping and characterization of land subsidence in Beijing Plain caused by groundwater pumping using the Small Baseline Subset (SBAS) InSAR technique

Author: M. L. Gao, H. L. Gong, B. B. Chen, C. F. Zhou, K. S. Liu, and M. Shi
Subjects: Environmental sciences, GE1-350, Geology, QE1-996.5
Abstract: InSAR time series analysis is widely used for detection and monitoring of slow surface deformation. In this paper, 15 TerraSAR-X radar images acquired in stripmap mode between 2012 and 2013 are processed for land subsidence monitoring with the Small Baseline Subset (SBAS) approach in Beijing Plain in China. Mapping results produced by SBAS show that the subsidence rates in the area of Beijing Plain range from −97.5 (subsidence) and to +23.8 mm yr−1 (uplift), relative to a presumably stable benchmark. The mapping result also reveals that there are the five subsidence centers formed by surface deformation spreading north to south east of the downtown. An uneven subsidence patten was detected near the Beijing Capital International Airpor, which may be related to loading of buildings and the aircraft.
Published: 2015
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3. Measurement of the Mass of the τ Lepton

Author: T. H. Burnett, S. T. Xue, F. Li, H. L. Ni, W. G. Li, Jun-Bing Ma, H. S. Zhou, G. Y. Hu, Q. Liu, Z. D. Cheng, G. P. Zhou, O. Bardon, E. Soderstrom, Wei Li, Y. H. Zhou, Michael J. Fero, Z. J. Jiang, J. S. Whitaker, Chunmei Zhang, L. P. Zhou, Z. P. Mao, Robert Wilson, S. D. Gu, D. H. Ma, W. G. Yan, Q. P. Jia, L. J. Pan, T. Hu, H. Marsiske, D. L. Shen, M. L. Gao, Y. S. Li, C. M. Yang, R. Cowan, W. X. Gao, M. Mandelkern, Ming-Han Ye, Q. M. Zhu, W. D. Li, Yuanyuan Wang, J. W. Zhang, J. A. Coller, S. Z. Lin, D. G. Hitlin, W. R. Zhao, E. Torrence, H. M. Liu, Lei Zhang, Q. M. Li, Z. P. Zheng, Y. F. Lai, Y. B. Liu, D. M. Xi, Y. N. Gao, Joseph Izen, G. Rong, L. S. Zheng, Y. Zhang, X. M. Xia, J. Yan, Pihong Zhao, H. Y. Zhang, J. Panetta, J. S. Campbell, A. S. Johnson, S. M. Chen, D. X. Zhao, B. Y. Zhang, W. X. Gu, Y. C. Zhu, P. Wang, G. L. Tong, M. Z. Wang, X. C. Meng, Z. Q. Xu, W. H. Toki, P. L. Wang, X. F. Zhou, Junguang Lu, P. F. Lang, Xingzhu Cui, H. C. Cui, H. Z. Shi, H. S. Sun, S. Q. Zhang, D. Q. Huang, T. J. Wang, A. J. S. Smith, J. Synodinos, R. Becker-Szendy, J. Z. Bai, Ya-Nan Guo, C. Y. Yang, S. Q. Gao, X. F. Song, Y. Q. Chen, H. L. Ding, Xin Wu, D. P. Stoker, C. Fang, L. Z. Wang, X. X. Xie, R. K. Yamamoto, M. H. Kelsey, R. S. Xu, J. C. Li, Y. K. Que, H. S. Mao, Y. S. Zhu, S. Z. Ye, M. Hatanaka, W. Dunwoodie, M. G. Zhao, Z. Q. Yu, W. J. Wisniewski, G. Zioulas, J. H. Gu, J. Schultz, J. Quigley, S. J. Chen, L. Jones, B. Lowery, Chun-Hua Jiang, J. J. He, P. P. Xie, P. Q. Li, Y. Y. Shao, Jinxing Zheng, E. C. Ma, H. L. Zhang, E. Prabhakar, A. J. Lankford, H. B. Yao, J. T. Shank, D. H. Zhang, H. Y. Sheng, N. D. Qi, Z. Z. Du, R. G. Liu, B. Schmid, Y. L. Han, R. B. Li, Y. Z. Huang, F. C. Porter, and Y. N. Guo
Subjects: Physics, Particle physics, Lepton
Published: 2020
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4. Evidence of ψ(3770) non-DD¯ decay to J/ψπ+π−

Author: M. He, X. Tang, W. G. Li, Q. M. Zhu, D. L. Shen, K. L. He, J. W. Zhao, L. P. Fu, Y. C. Xu, S. W. Han, J. M. Zhang, S. L. Zang, C. X. Liu, G. W. Yu, M. Z. Wang, Z. A. Liu, M. Y. Gong, C. F. Liu, Yingchun Zhu, Zheng Wang, S.L. Olsen, H. M. Liu, J. G. Lu, H. S. Sun, Houbing Lu, C. C. Zhang, Haiping Peng, W. R. Zhao, F. Liu, F. Li, F. C. Ma, Q. Yue, Y. Ban, M. H. Ye, R. B. Li, Fang Liu, J. C. Chen, Jing Wang, Y. B. Zhao, J. Z. Bai, Y. N. Gao, H. M. Hu, T. Hu, XZ（蔡翔舟） Cai, Qiyang Zhang, H. S. Chen, Yang Tian, J. F. Qiu, L. Y. Dong, D. X. Zhao, B. Y. Zhang, Jiawei Zhao, Jiemin Li, J. P. Liu, S.S. Sun, S. D. Gu, J. Nie, Z. Y. Wang, J. Fang, L. S. Zheng, H. Y. Sheng, L. L. Ma, G. F. Xu, S. Jin, S. X. Du, X. L. Luo, H. Y. Zhang, W. D. Li, L. P. Zhou, S. T. Xue, M. L. Yan, G. A. Yang, P. Wang, N. D. Qi, Y. M. Dai, Liang Huang, X. Y. Zhang, Z. G. Zhao, X. C. Zhong, Z. J. Ke, R. G. Liu, G. S. Varner, Z. P. Mao, Y. S. Dai, J. Ying, J. Y. Zhang, J. B. Liu, H. Shen, Y. C. Zhu, R. Y. Li, F. Lu, C. S. Gao, Z. Z. Du, Y. P. Chu, X. B. Ji, P. L. Wang, Meng Wang, W. B. Yan, Jinxing Zheng, Z. J. Sun, X. H. Mo, Z. X. Liu, X. C. Meng, Y. K. Heng, Y. Y. Zhang, Cunfeng Wei, Ning Zhou, F. A. Harris, C. D. Qian, Y. N. Guo, Yudan Wang, S. Q. Tang, J. C. Li, D. Tian, Y. Jin, J. W. Zhang, T. Hong, L. S. Wang, G. Li, S. D. Yang, J. J. He, Zhe Wang, C. D. Fu, H. X. Yang, G. R. Lu, Z.J. Guo, J. G. Bian, Z. A. Zhu, Y. Yuan, Y. S. Zhu, Xingzhu Cui, Z. P. Zhang, Xintong Li, M. L. Gao, X. X. Xie, X. M. Xia, Bing Zhou, Chun-Hua Jiang, L. W. Song, Y. Zeng, S. P. Chi, Y. Q. Guo, P. P. Zhao, H. Y. Fu, Zujian Wang, Q. J. Li, B. X. Zhang, K. J. Zhu, S. Q. Zhang, J. M. Yuan, Y. B. Chen, Y. Z. Sun, S. S. Fang, Y. B. Liu, Y. F. Lai, Lei Zhang, H. F. Chen, W. F. Wang, Zhiyun Zheng, G. Rong, Feng Shi, Z. J. Lu, H. H. Li, B.S. Zou, N. Wu, Y. J. Zhang, Guangzhao Zhou, Xiru Huang, G. L. Tong, B. A. Zhuang, X. Y. Shen, Jiming Yang, G. S. Huang, K. Li, J. Z. Wang, D. P. Jin, X. S. Jiang, D. H. Zhang, C. S. Yu, J. F. Chang, Yiyun Zhang, Z. D. Nie, Y. X. Ye, E. C. Ma, X. H. He, X. Q. Li, Jun-Bing Ma, and W. X. Gong
Published: 2020
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5. Observation of a Near-Threshold Enhancement in the pp¯ Mass Spectrum from Radiative J/ψ→γpp¯ Decays

Author: B.S. Zou, Yudan Wang, S. Q. Tang, J. Chen, H. M. Hu, W. B. Yan, J. G. Lu, G. R. Lu, Z. A. Zhu, D. Paluselli, G. S. Huang, Q. J. Li, T. Hu, XZ（蔡翔舟） Cai, Jiming Yang, Bing Zhou, F. Li, F. C. Ma, Q. Yue, J. C. Chen, R. Malchow, J. W. Zhao, G. W. Yu, K. Li, C. F. Liu, Yingchun Zhu, G. Li, Zhe Wang, R. B. Li, Jing Wang, Y. B. Zhao, Z. A. Liu, Xingzhu Cui, W. D. Li, W. R. Zhao, F. Liu, Liang Huang, S. D. Gu, Jie Chen, C. D. Fu, Y. Ban, B. D. Jones, S.S. Sun, M. L. Gao, Y. Zeng, Y. N. Gao, J. Fang, P. P. Zhao, Y. Q. Guo, Feng Shi, L. S. Zheng, J. Z. Wang, J. F. Qiu, S. T. Xue, Y. B. Chen, K. L. He, Z. P. Zheng, X. C. Zhong, Qiyang Zhang, Z. Y. Wang, Z. J. Lu, H. Y. Zhang, Lei Zhang, J. Z. Bai, X. H. Mo, L. S. Wang, H. H. Li, Guangzhao Zhou, Zheng Wang, X. M. Xia, X. C. Meng, G. S. Varner, Z. J. Guo, Y. F. Lai, Joseph Izen, G. Rong, S. W. Han, X. Tang, D. P. Jin, J. F. Chang, Xintong Li, Jun-Bing Ma, Xiru Huang, H. F. Chen, Fang Liu, J. Ying, W. F. Wang, W. H. Toki, J. M. Zhang, N. Wu, T. Hong, X. X. Xie, P. Wang, S. Q. Zhang, H. Y. Fu, G. L. Tong, B. A. Zhuang, J. Y. Zhang, H. Y. Sheng, W. X. Gong, Z. P. Zhang, Yiyun Zhang, Chun-Hua Jiang, M. H. Ye, Y. Z. Sun, D. H. Zhang, D. X. Zhao, B. Y. Zhang, Y. P. Chu, X. B. Ji, C. S. Yu, Jiemin Li, J. P. Liu, X. L. Luo, X. Y. Shen, N. D. Qi, Y. M. Dai, Y. X. Ye, Zujian Wang, L. Y. Dong, Y. C. Zhu, G. A. Yang, Meng Wang, D. Kong, C. D. Qian, Z. Z. Du, M. He, D. L. Shen, X. S. Jiang, M. Y. Gong, P. L. Wang, W. Dunwoodie, X. Q. Li, Y. K. Heng, Y. Y. Zhang, X. Y. Zhang, W. G. Li, S. P. Chi, Z. X. Liu, C. X. Liu, R. G. Liu, D. Tian, F. Lu, J. B. Liu, H. M. Liu, J. J. He, K. J. Zhu, J. M. Yuan, J. G. Bian, B. X. Zhang, Y. Jin, F. A. Harris, Y. N. Guo, Z. D. Nie, Y. Yuan, Y. S. Zhu, G. F. Xu, S. Jin, L. W. Song, S. S. Fang, C. Z. Yuan, Y. B. Liu, Yang Tian, E. C. Ma, S. X. Du, M. L. Yan, X. H. He, Y. J. Zhang, H. S. Chen, L. P. Zhou, Z. P. Mao, S. L. Zang, S.L. Olsen, J. Nie, Y. S. Dai, C. S. Gao, Jinxing Zheng, Q. M. Zhu, Y. C. Xu, M. Z. Wang, H. S. Sun, Haiping Peng, X. C. Lou, S. D. Yang, L. P. Fu, Houbing Lu, C. C. Zhang, J. C. Li, H. X. Yang, Z. G. Zhao, Z. J. Sun, H. Shen, R. Y. Li, Cunfeng Wei, Ning Zhou, J. W. Zhang, Jiawei Zhao, and Z. J. Ke
Subjects: Physics, Near threshold, Mass spectrum, Radiative transfer, Atomic physics
Published: 2020
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6. Direct Measurement of the Pseudoscalar Decay Constant, fDs

Author: Z. P. Zheng, Y. Jin, J. C. Li, C. C. Zhang, D. Paluselli, G. P. Zhou, J. G. Lu, G. Zioulas, S. Z. Lin, W. R. Zhao, Z. A. Liu, L. S. Wang, M. H. Ye, R. B. Li, I. Blum, Z. Q. Xu, Y. H. Zhou, K. R. He, R. J. Wilson, Chun-Hua Jiang, D. P. Stoker, J. H. Liu, T. J. Wang, S. Whittaker, R. Malchow, G. L. Tong, T. Hu, Michael Schernau, W. Yang, B. A. Zhuang, P. Gratton, Q. P. Jia, J. Panetta, S. M. Chen, X. M. Xia, H. B. Lan, W. X. Zhao, S. Q. Gao, J. Nie, J. Fang, L. S. Zheng, X. R. Shi, Y. Z. Huang, G. P. Chen, Y. B. Liu, Y. Zhang, Y. C. Zhu, O. Bardon, P. L. Wang, E. Soderstrom, H. Shen, Wei Li, D. X. Zhao, B. Y. Zhang, F. C. Porter, F. Sun, X. Q. Hu, W. D. Li, Y. F. Gu, S. H. Kang, D. Z. Xu, J. M. lzen, X. F. Zhou, D. Q. Huang, R. S. Xu, Y. Y. Wang, Y. Y. Shao, C. S. Gao, D. G. Hitlin, M. He, D. L. Shen, J. Quigley, S. Z. Ye, M. Hatanaka, M. Mandelkern, C. Z. Yuan, H. B. Hu, R. G. Liu, Jinxing Zheng, S. J. Chen, H. S. Mao, B. K. Kim, Y. Q. Chen, S. T. Xue, J. W. Zhang, B. Schmid, B. S. Cheng, J. Z. Bai, A. Breakstone, Q. Liu, Xingzhu Cui, M. G. Zhao, G. Y. Hu, F. A. Harris, L. Jones, J. H. Gu, J. Schultz, X. L. Fan, F. Li, H. L. Ni, H. C. Cui, Y. K. Que, J. Chen, Li Zhou, H. B. Yao, Q. M. Zhu, H. Z. Shi, P. Wang, Jun-Bing Ma, Y. P. Tan, S. M. Wang, D. M. Xi, J. Yan, S. W. Han, J. Synodinos, X. F. Song, P. P. Xie, X. Y. Shen, P. F. Lang, J. W. Zhao, S. D. Gu, S. Q. Zhang, L. Z. Wang, A. M. Ma, H. S. Zhou, J. J. He, M. Z. Wang, H. L. Ding, M. H. Kelsey, Y. N. Guo, E. Torrence, H. S. Sun, X. C. Lou, J. Oyang, H. Y. Sheng, W. Dunwoodie, R. K. Yamamoto, Y. L. Han, P. Q. Li, M. L. Gao, W. G. Li, Xinglong Li, D. H. Zhang, J. Y. Zhang, X. Q. Li, S. Q. Tang, Pihong Zhao, W. J. Wisniewski, C. S. Yu, C. X. Yu, B. Lowery, W. X. Gu, R. Cowan, E. Prabhakar, Y. B. Chen, W. H. Toki, C. Y. Yang, N. D. Qi, H. M. Liu, A. J. Lankford, Y. F. Lai, H. F. Chen, X. C. Meng, W. F. Wang, J. Standifird, L. J. Pan, Michael J. Fero, Y. Y. Zhang, A. J. S. Smith, Y. S. Zhu, C. M. Yang, W. X. Gao, Z. Z. Du, W. G. Yan, S. J. Sun, E. C. Ma, Lei Zhang, H. L. Zhang, G. Rong, Z. Q. Yu, S.L. Olsen, T. H. Burnett, F. Wang, Z. P. Mao, and Q. Y. Li
Subjects: Physics, Pseudoscalar, Particle physics, Exponential decay
Published: 2020
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7. ψ(2S) Hadronic Decays to Vector-Tensor Final States

Author: Dehong Zhang, W. G. Yan, I. Blum, F. Sun, A. J. Lankford, Qiyang Zhang, H. Z. Shi, Y. H. Yu, Chun-Hua Jiang, Q. M. Zhu, J. Z. Bai, X. F. Song, Lei Zhang, Joseph Izen, G. Rong, Y. Z. Huang, P. Wang, L. Z. Wang, W. G. Li, J. Panetta, Y. C. Zhu, Kai Yi, M. Z. Wang, L. P. Zhou, F. C. Porter, Z. G. Zhao, M. H. Kelsey, D. M. Xi, J. G. Lu, J. Yan, Jiming Yang, F. Wang, C. H. Luo, P. L. Wang, Z. Z. Du, H. S. Sun, L. J. Pan, Z. P. Mao, Meng Wang, Y. X. Ye, H. M. Liu, S. T. Xue, S. M. Wang, X. N. Li, X. C. Lou, H. Shen, P. Gratton, J. H. Liu, Q. H. Hu, J. Y. Zhang, T. Hu, F. Lu, Y. H. Xie, Y. G. Xie, Y. K. Que, J. Chen, G. Y. Hu, X. M. Xia, H. M. Hu, Michael Schernau, T. J. Wang, H. L. Ding, Z. W. Chai, W. Yang, J. Nie, J. G. Bian, D. H. Zhang, C. S. Yu, F. A. Harris, H. Y. Sheng, Z. Q. Yu, Y. Y. Zhang, C. Z. Yuan, X. Q. Hu, E. C. Ma, H. L. Zhang, Y. Y. Shao, S. D. Gu, S.L. Olsen, Cunfeng Wei, H. B. Li, C. S. Gao, D. G. Hitlin, J. W. Zhang, J. P. Liu, H. S. Mao, G. P. Chen, W. D. Li, S. Feng, Y. F. Gu, C. X. Yu, Shun-Qi Zhang, M. He, D. L. Shen, N. D. Qi, Y. B. Chen, X. C. Meng, W. J. Xiong, P. F. Lang, Jinxing Zheng, J. D. Huang, J. F. Qiu, Y. Jin, R. B. Li, J. Standifird, C. D. Qian, C. C. Zhang, M. G. Zhao, L. Y. Dong, G. P. Zhou, D. Kong, Cheng-Kui Li, W. X. Gu, Y. N. Guo, B. S. Cheng, W. H. Toki, Y. L. Han, W. R. Zhao, B. W. Shen, L. C. Lu, G. F. Xu, B. Lowery, D. Paluselli, J. He, S. Q. Gao, Z. J. Ke, W. Dunwoodie, X. R. Qi, J. L. Zhang, Y. Zhang, J. C. Li, P. P. Xie, J. C. Chen, R. Malchow, D. Li, C. M. Yang, J. W. Zhao, Y. Yuan, Y. S. Zhu, J. H. Gu, L. S. Zheng, P. Q. Li, X. Y. Shen, Z. P. Zheng, J. Oyang, X. Y. Zhang, R. G. Liu, L. S. Wang, M. H. Ye, G. L. Tong, B. A. Zhuang, M. L. Gao, S. Q. Tang, Wei Li, L. Y. Ding, Y. H. Qu, B. K. Kim, Y. F. Lai, H. F. Chen, S. W. Han, A. M. Ma, H. S. Zhou, H. W. Zhao, C. Y. Yang, Jun-Bing Ma, Xingzhu Cui, Z. T. Yu, D. X. Zhao, B. Y. Zhang, Y. Y. Wang, S. W. Ye, M. Weaver, J. L. Hu, Y. G. Wu, J. J. He, Y. Q. Chen, X. H. Li, J. Y. Lu, C. C. Xu, Y. B. Liu, and Xuan Yang
Subjects: Physics, Particle physics, Hadron, Tensor
Published: 2020
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8. [Target gene sequence capture and next generation sequencing technology to diagnose four children with Alagille syndrome]

Author: M L, Gao, X M, Zhong, X, Ma, H J, Ning, D, Zhu, and J Z, Zou
Subjects: Alagille Syndrome, Male, Child, Preschool, DNA Mutational Analysis, Infant, Newborn, Mutation, Missense, High-Throughput Nucleotide Sequencing, Humans, Infant, Jagged-1 Protein
Abstract: To make genetic diagnosis of Alagille syndrome (ALGS) patients using target gene sequence capture and next generation sequencing technology.Target gene sequence capture and next generation sequencing were used to detect ALGS gene of 4 patients. They were hospitalized at the Affiliated Hospital, Capital Institute of Pediatrics between January 2014 and December 2015, referred to clinical diagnosis of ALGS typical and atypical respectively in 2 cases. Blood samples were collected from patients and their parents and genomic DNA was extracted from lymphocytes. Target gene sequence capture and next generation sequencing was detected. Sanger sequencing was used to confirm the results of the patients and their parents.Cholestasis, heart defects, inverted triangular face and butterfly vertebrae were presented as main clinical features in 4 male patients. The first hospital visiting ages ranged from 3 months and 14 days to 3 years and 1 month. The age of onset ranged from 3 days to 42 days (median 23 days). According to the clinical diagnostic criteria of ALGS, patient 1 and patient 2 were considered as typical ALGS. The other 2 patients were considered as atypical ALGS. Four Jagged 1(JAG1) pathogenic mutations were detected. Three different missense mutations were detected in patient 1 to patient 3 with ALGS(c.839CT(p.W280X), c. 703GA(p.R235X), c. 1720CT(p.V574M)). The JAG1 mutation of patient 3 was first reported. Patient 4 had one novel insertion mutation (c.1779_1780insA(p.Ile594AsnfsTer23)). Parental analysis verified that the JAG1 missense mutation of 3 patients were de novo. The results of sanger sequencing was consistent with the results of the next generation sequencing.Target gene sequence capture combined with next generation sequencing can detect two pathogenic genes in ALGS and test genes of other related diseases in infantile cholestatic diseases simultaneously and presents a high throughput, high efficiency and low cost. It may provide molecular diagnosis and treatment for clinicians with good clinical application prospects.
Published: 2016

9. Characterisation and nano-friction behaviour of molecular deposition films

Author: S. W. Zhang, M. L. Gao, and Q. B. Wang
Subjects: chemistry.chemical_classification, Materials science, Bilayer, Cationic polymerization, Nanotechnology, Substrate (electronics), Surfaces, Coatings and Films, Electrostatic attraction, chemistry, Chemical engineering, Monolayer, Nano, Materials Chemistry, Deposition (law), Alkyl
Abstract: The structure and the nano-friction behaviour of a new kind of ultrathin film, a molecular deposition (MD) film, on an Au substrate were studied. The MD film is formed by the electrostatic attraction between opposite charges of cationic and anionic compounds, and a multilayer film can be built through alternating deposition of bipolar cationic and anionic compounds. Monolayer, bilayer, trilayer, and tetralayer MD films on Au substrates were examined. MD films with an alkyl terminal group were also investigated. It was found that while the MD film on an Au substrate reduced the friction, its nano-friction behaviour was unstable because of the active terminal group. However, if the MD film was formed with an alkyl terminal group, its nano-friction behaviour became stable and its friction decreased markedly. Therefore, this film termination method could contribute to the nano-tribological application of MD films.
Published: 2005
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10. Evidence of ψ(3770) non-DD¯ decay to J/ψπ+π−

Author: S. L. Zang, H. Shen, R. Y. Li, Y.R. Tian, Jing Wang, Y. B. Zhao, S.L. Olsen, S. D. Gu, M. H. Ye, Q. Yue, Cunfeng Wei, Yingchun Zhu, Ning Zhou, J. W. Zhang, L. S. Wang, Z. J. Lu, L. Y. Dong, D. Tian, S. X. Du, M. L. Yan, G. S. Varner, Feng Shi, X. S. Jiang, W. B. Yan, Xiru Huang, J. C. Chen, G. L. Tong, B. A. Zhuang, Bing Zhou, Jiawei Zhao, Zheng Wang, Zhenyu Zhang, N. Wu, K. Li, Z. J. Ke, Guangzhao Zhou, Jun-Bing Ma, Xingzhu Cui, B.S. Zou, S. Q. Zhang, Z. A. Liu, Y. Ban, W. X. Gong, J. Z. Bai, Y. Z. Sun, Y. N. Guo, W. D. Li, Qiyang Zhang, Z. Y. Wang, J. Fang, L. S. Zheng, M. He, X. Tang, Xuan Zhang, X. Y. Shen, H. J. Lu, J. G. Lu, H. H. Li, D. L. Shen, L. P. Zhou, J. Z. Wang, H. Y. Zhang, J. F. Chang, P. Wang, X. C. Meng, Haiwen Liu, H. M. Hu, L. P. Fu, Z. P. Mao, C. X. Liu, Y. M. Dai, F. C. Ma, Z.J. Guo, W. R. Zhao, Y. Jin, G. S. Huang, T. Hu, XZ（蔡翔舟） Cai, J. Ying, J. Nie, J. Y. Zhang, Yiyun Zhang, D. P. Jin, X. Q. Li, M. L. Gao, M. Y. Gong, C. F. Liu, S.S. Sun, Zujian Wang, Jiang Changhui, Y. X. Ye, J. W. Zhao, G. W. Yu, J. G. Bian, Yudan Wang, S. Q. Tang, D. X. Zhao, B. Y. Zhang, Jiemin Li, T. Hong, B. X. Zhang, Hao-Ze Chen, Y. K. Heng, Y. Y. Zhang, Y. Q. Guo, C. C. Zhang, X. C. Zhong, Y. B. Chen, D. H. Zhang, J. He, L. Huang, X. M. Xia, J. F. Qiu, F. Lu, Q. J. Li, Y. F. Lai, Z. A. Zhu, W. F. Wang, Zhiyun Zheng, H. Y. Fu, Y. S. Dai, C. S. Gao, C. S. Yu, G. F. Xu, X. H. Mo, Jinxing Zheng, K. L. He, P. P. Zhao, S. W. Han, Y. Yuan, Y. S. Zhu, J. M. Zhang, J. C. Li, Y. C. Zhu, Lei Zhang, G. Rong, S. D. Yang, P. L. Wang, Meng Wang, H. X. Yang, F. A. Harris, Zhe Wang, Y.N. Gao, L. L. Ma, Fei-Fei Liu, H. S. Chen, C. D. Qian, F. Y. Li, Y. Zeng, J. P. Liu, G. A. Yang, Z. G. Zhao, W. G. Li, Fang Liu, Z. J. Sun, X.S. Li, Q. M. Zhu, Z. D. Nie, Y. C. Xu, M. Z. Wang, E. C. Ma, H. S. Sun, Haiping Peng, X. H. He, Y. P. Chu, X. B. Ji, Gongru Lu, S. P. Chi, K. J. Zhu, J. M. Yuan, S. Jin, G. Li, C. D. Fu, S. T. Xue, X. L. Luo, L. W. Song, Y. J. Zhang, S. S. Fang, Y. B. Liu, R. B. Li, J. Yang, X. X. Xie, H. Y. Sheng, N. D. Qi, Z. Z. Du, Z. X. Liu, R. G. Liu, and J. B. Liu
Subjects: Physics, Nuclear and High Energy Physics, Partial width, Nuclear magnetic resonance, Branching fraction, Electron–positron annihilation, Atomic physics
Abstract: Evidence of ψ ( 3770 ) decays to a non- D D ¯ final state is observed. A total of 11.8 ± 4.8 ± 1.3 ψ ( 3770 ) → J / ψ π + π − events are obtained from a data sample of 27.7 pb−1 taken at center-of-mass energies around 3.773 GeV using the BES-II detector at the BEPC. The branching fraction is determined to be BF ( ψ ( 3770 ) → J / ψ π + π − ) = ( 0.34 ± 0.14 ± 0.09 ) % , corresponding to the partial width of Γ ( ψ ( 3770 ) → J / ψ π + π − ) = ( 80 ± 33 ± 23 ) keV .
Published: 2005
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11. Search for K0SK0S in J/ψ and ψ(2S) decays

Author: L. P. Zhou, Y. Yuan, Y. S. Zhu, Z. P. Mao, N. Wu, Z. Y. Yi, Zujian Wang, Jiang Changhui, X. H. Mo, L. S. Wang, M. H. Ye, Z. A. Liu, K. L. He, S. W. Han, J. M. Zhang, Y. Ban, J. Z. Bai, J. He, H. Y. Zhang, X. S. Jiang, Z. P. Zheng, Haiwen Liu, G. S. Huang, S. X. Du, W. R. Zhao, Feng Shi, J. Y. Zhang, M. L. Yan, Xiru Huang, G. L. Tong, Y. Jin, Xingzhu Cui, B. A. Zhuang, Y. K. Heng, Y. Y. Zhang, Z. Z. Du, Z. X. Liu, Guangzhao Zhou, S. D. Gu, Q. Yue, J. C. Li, Yingchun Zhu, X. Tang, Xuan Zhang, B.S. Zou, Z.Q. Zhang, Zheng Wang, Zhenyu Zhang, J. F. Chang, X. M. Xia, M. Y. Gong, J. C. Chen, Yiyun Zhang, J. Fang, L. S. Zheng, Xunchao Zhang, Juan Zhang, Z. D. Nie, Y. X. Ye, Y.R. Tian, Y. N. Guo, Y.N. Gao, M. L. Gao, H. S. Chen, J. B. Zhao, G. S. Varner, Qingying Jia, Z.J. Guo, S. L. Zang, J. Nie, X. H. He, Y. Q. Guo, Y.X. Yang, C. D. Qian, Q. J. Li, Qiyang Zhang, S. M. Li, Y. B. Chen, X. Y. Shen, Y. C. Zhu, Y. Xu, H. Y. Fu, Jun Chen, Bing Zhou, H.Q. Zheng, H.S. Xu, Y. F. Lai, L. Huang, L. L. Ma, Y. M. Wu, S.L. Olsen, W. F. Wang, Y. B. Zhao, P. Wang, Y. S. Dai, Bo Xin, J. G. Lu, P. L. Wang, P. P. Zhao, Yudan Wang, S. Q. Zhang, C. S. Gao, X. J. Zhao, J. Chen, J. Z. Wang, W. D. Li, Jinxing Zheng, Meng Wang, H. X. Yang, Y. Z. Sun, T. Hu, L. Y. Dong, Y. F. Liang, H.B. Liao, XZ（蔡翔舟） Cai, D. P. Jin, Lei Zhang, Z. A. Zhu, F. Yang, G. Rong, R. Y. Li, G. F. Xu, H. M. Hu, H. Qin, D. X. Zhao, Cunfeng Wei, D. H. Zhang, C. S. Yu, S.S. Sun, J. W. Zhao, S. D. Yang, G. W. Yu, Lianyou Shan, Ning Zhou, B. Y. Zhang, Jun-Bing Ma, Hangxu Li, Jiemin Li, J. W. Zhang, B. X. Zhang, Hao-Ze Chen, J. G. Bian, X. C. Zhong, Z. Y. Ren, F. A. Harris, W. G. Li, D. Y. Wang, W. B. Yan, X. Y. Ma, W. X. Gong, F. Lu, F. Y. Li, J. P. Liu, Fei-Fei Liu, X. Shi, H. L. Dai, F. C. Ma, Q. M. Zhu, Y. Zeng, M. Z. Wang, H. S. Sun, Haiping Peng, C. Z. Yuan, Zhe Wang, J. F. Qiu, L. P. Fu, C. L. Luo, Nongjian Tao, C. C. Zhang, Z. G. Zhao, Fang Liu, Z. J. Sun, X.S. Li, Gongru Lu, S. P. Chi, K. J. Zhu, J. M. Yuan, Shang Lunlin, S. Jin, G. Li, X.L. Li, C. D. Fu, Z. Y. Deng, Y. P. Chu, X. B. Ji, S. T. Xue, X. L. Luo, Z. Y. Wang, S. Z. Wang, L. W. Song, M. L. Chen, Y. J. Zhang, R. B. Li, X. Q. Li, H. Y. Sheng, L. H. Yi, N. D. Qi, S. S. Fang, Y. B. Liu, J. Yang, M. He, D. L. Shen, R. G. Liu, J. B. Liu, C. X. Liu, X. X. Xie, and X. C. Meng
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Spectrometer, Electron–positron annihilation, Atomic physics
Abstract: The CP violating processes J / ψ → K 0 S K 0 S and ψ (2 S )→ K 0 S K 0 S are searched for using samples of 58 million J / ψ and 14 million ψ (2 S ) events collected with the Beijing spectrometer at the Beijing electron–positron collider. No signal is observed, and upper limits on the decay branching ratios are determined to be B (J/ψ→K 0 S K 0 S ) −6 and B (ψ(2S)→K 0 S K 0 S ) −6 at the 95% confidence level.
Published: 2004
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12. Measurements of the mass and full-width of the ηc meson

Author: Yudan Wang, B.S. Zou, S. Q. Tang, S. T. Xue, Qiyang Zhang, G. R. Lu, F. Li, F. C. Ma, Z. Y. Wang, Z. A. Zhu, P. Wang, Y. M. Dai, Z. D. Nie, J. F. Qiu, Q. M. Zhu, Y. C. Xu, M. Z. Wang, G. Li, Z. G. Zhao, Q. J. Li, H. S. Sun, N. Wu, J. Nie, C. F. Liu, Yingchun Zhu, L. Huang, Y. S. Dai, C. S. Gao, Jinxing Zheng, Z. J. Sun, E. C. Ma, J. G. Lu, C. D. Fu, Zheng Wang, Yang Tian, Haiping Peng, X. C. Lou, Y. Jin, Jing Wang, Y. B. Zhao, X. H. He, M. He, D. Paluselli, F. Lu, D. L. Shen, X.S. Li, S. D. Yang, T. Hu, X. C. Meng, H. M. Hu, XZ（蔡翔舟） Cai, J. C. Li, J. C. Chen, S. L. Zang, S. X. Du, Feng Shi, C. X. Liu, L. W. Song, Y. C. Zhu, S. D. Gu, T. Hong, M. L. Yan, K. Li, Q. Yue, P. L. Wang, J. Fang, L. S. Zheng, S.L. Olsen, L. S. Wang, Meng Wang, Guangzhao Zhou, M. L. Gao, Z. J. Guo, Jiawei Zhao, C. Z. Yuan, Y. Zeng, B. D. Jones, S.S. Sun, X. S. Jiang, Zhe Wang, C. D. Qian, Z. J. Ke, X. Tang, M. H. Ye, J. Z. Wang, D. P. Jin, F. A. Harris, Y. Yuan, Y. S. Zhu, Y. Q. Guo, Z. P. Zhang, Y. B. Chen, H. Shen, Chun-Hua Jiang, X. M. Xia, K. L. He, X. C. Zhong, S. W. Han, G. S. Varner, Zujian Wang, R. Y. Li, P. P. Zhao, D. H. Zhang, C. S. Yu, L. P. Fu, Y. F. Lai, L. Y. Dong, J. M. Zhang, H. F. Chen, Y. J. Zhang, W. F. Wang, X. Y. Shen, H. Y. Sheng, Houbing Lu, C. C. Zhang, H. Y. Fu, Cunfeng Wei, Ning Zhou, Lei Zhang, H. Y. Zhang, Bing Zhou, J. W. Zhang, Joseph Izen, G. Rong, M. Y. Gong, G. S. Huang, J. Ying, J. Y. Zhang, W. R. Zhao, F. Liu, G. F. Xu, W. Dunwoodie, N. D. Qi, Y. K. Heng, Y. Y. Zhang, S. Jin, Z. P. Zheng, Y. N. Gao, Y. N. Guo, D. Tian, J. G. Bian, H. S. Chen, J. F. Chang, Z. J. Lu, S. Q. Zhang, X. Q. Li, Y. Z. Sun, Z. A. Liu, Yiyun Zhang, Xiru Huang, G. L. Tong, B. A. Zhuang, Y. X. Ye, X. Y. Zhang, Y. Ban, B. X. Zhang, R. G. Liu, J. B. Liu, L. P. Zhou, Z. P. Mao, R. B. Li, Y. P. Chu, X. B. Ji, J. Z. Bai, J. Yang, S. S. Fang, Z. Z. Du, D. Kong, Z. X. Liu, S. P. Chi, Y. B. Liu, K. J. Zhu, J. M. Yuan, X. L. Luo, Jun-Bing Ma, J. J. He, W. X. Gong, X. X. Xie, H. X. Yang, J. P. Liu, G. A. Yang, W. G. Li, H. M. Liu, X. H. Mo, Xingzhu Cui, Jie Chen, W. D. Li, H. H. Li, J. W. Zhao, G. W. Yu, W. B. Yan, Fang Liu, D. X. Zhao, B. Y. Zhang, and Jiemin Li
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Meson, Electron–positron annihilation, Mass spectrum, Full width, High Energy Physics - Experiment
Abstract: In a sample of 58 million $J/\psi$ events collected with the BES II detector, the process J/$\psi\to\gamma\eta_c$ is observed in five different decay channels: $\gamma K^+K^-\pi^+\pi^-$, $\gamma\pi^+\pi^-\pi^+\pi^-$, $\gamma K^\pm K^0_S \pi^\mp$ (with $K^0_S\to\pi^+\pi^-$), $\gamma \phi\phi$ (with $\phi\to K^+K^-$) and $\gamma p\bar{p}$. From a combined fit of all five channels, we determine the mass and full-width of $\eta_c$ to be $m_{\eta_c}=2977.5\pm1.0 ({stat.})\pm1.2 ({syst.})$ MeV/$c^2$ and $\Gamma_{\eta_c} = 17.0\pm3.7 ({stat.})\pm7.4 ({syst.})$ MeV/$c^2$., Comment: 9 pages, 2 figures and 4 table. Submitted to Phys. Lett. B
Published: 2003
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13. The BES upgrade

Author: G. S. Huang, X. C. Meng, J. Y. Zhang, J. Standifird, W. G. Yan, J. Oyang, Jun-Bing Ma, J. Schultz, M.H. Kelsey, J. Z. Bai, L. S. Wang, B. Yang, P. Zhang, Y. K. Heng, Y. Y. Zhang, Jun Wang, Chunmei Zhang, J. Li, Joseph Izen, H. Luo, Y. Yuan, Y. S. Zhu, B. W. Shen, Y. Q. Chen, Hao-Ze Chen, Z.R. Wan, Z. Q. Xu, H. Y. Sheng, Jiming Yang, H.G. Han, M. G. Zhao, X.M. Chu, C. X. Yu, Qiyang Zhang, Y. W. Liu, P. Wang, H. S. Mao, Zhengguo Zhao, G. Y. Hu, T. J. Wang, N. D. Qi, W.H. Li, G. P. Chen, M. Mandelkern, C. Z. Yuan, L. Y. Dong, Xinchou Lou, He-Run Yang, S.T. Xu, C.S. Yang, H. Z. Shi, B. S. Cheng, H. M. Liu, Dehong Zhan, X. F. Song, D. P. Stoker, P. F. Lang, M. Weaver, Y.Y. Du, D. Paluselli, R. B. Li, Y.Y. Jiang, D. Kong, H.Y. Lu, Qian Liu, L. Zhang, L. Z. Wang, B. K. Kim, X. Q. Hu, Y. H. Xie, J. H. Gu, Ming-Han Ye, Qi Liu, T. Hu, M. L. Gao, C. C. Xu, H. W. Zhao, Y. K. Que, J. Chen, Li Zhou, H. M. Hu, Cheng-Kui Li, J. C. Chen, R. Malchow, D. X. Zhao, B. Y. Zhang, Jiurong Liu, Y. Z. Sun, Y. Y. Wang, J. Fang, L. S. Zheng, Wei Li, C. D. Qian, M. He, H. B. Li, W. Y. Ding, C. Y. Yang, X. Y. Shen, S. D. Gu, Yuanbo Chen, X. L. Luo, D. L. Shen, D.J. Yang, Z. Z. Du, S. J. Sun, Xingzhu Cui, Z. X. Liu, B. D. Jones, Y. H. Qu, W. J. Xiong, J. L. Hu, Yue-Yuan Zhang, Q. Xie, H. L. Ni, S. Q. Tang, C. M. Yang, G. S. Varner, Y. Jin, G. A. Yang, K. J. Zhu, W. X. Gu, W. H. Toki, X. Xiao, S.C. Zheng, S. Q. Gao, Z. J. Ke, Z. P. Zheng, W. Dunwoodie, Y. F. Lai, P. P. Xie, C.C. Zhong, X. Ju, G. L. Tong, B. A. Zhuang, H. Shen, X. H. Mo, J. F. Qiu, L.G. Mu, Y. P. Tan, P. Q. Li, W. G. Li, J.S. Lou, S. M. Wang, Junguang Lu, Cunfeng Wei, H. L. Ding, S. W. Han, R. G. Liu, Y. J. Sun, Frank C. Porter, Jun Liu, B. Schmid, Q. H. Hu, H. S. Zhou, P. Gratton, J. Panetta, Y. C. Zhu, X. M. Xia, Xingguo Li, F. Sun, Z. W. Chai, J. Zhao, X. F. Zhou, Meng Wang, F. A. Harris, H.C. Bao, D. M. Xi, J. Yan, Lin. Zhang, Y. H. Yu, G. Rong, Jiang Changhui, E. C. Ma, H. L. Zhang, Stephen L. Olsen, D. H. Zhang, C. S. Yu, A. J. Lankford, X. N. Li, D. G. Hitlin, J. H. Liu, Michael Schernau, W. Yang, J. Nie, Y. Y. Shao, C. S. Gao, Jinxing Zheng, J. D. Huang, F. Wang, Z. P. Mao, Q. M. Zhu, H. S. Sun, Z. Q. Yu, Y. N. Guo, F. Y. Li, J. W. Zhang, W. Z. Fang, B. Lowery, Y. B. Chen, Y. L. Han, S. Q. Luo, I. Blum, Y. Z. Huang, Q. Y. Li, J. He, S. Q. Zhang, W.L. Yao, G.P. Zho, L. J. Pan, Bing Zhou, W. R. Zhao, X. R. Qi, Yuehong Xie, H. B. Hu, P. L. Wang, and Xuan Yang
Subjects: Physics, Nuclear and High Energy Physics, Spectrometer, Physics::Instrumentation and Detectors, Detector, Solenoid, Particle accelerator, Computer Science::Digital Libraries, Computer Science::Computers and Society, Particle detector, law.invention, Nuclear physics, Upgrade, Beijing, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider, Instrumentation
Abstract: The Beijing Spectrometer (BES) detector is a general purpose solenoid detector at the Beijing Electron Positron Collider (BEPC) in Beijing, China, that has collected large numbers of J/ψ, ψ′, Ds, D and τ events. In this paper, we describe the recent upgrade of the initial BES detector (BESI) to the improved BESII detector.
Published: 2001
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14. Measurement of the Total Cross Section for Hadronic Production bye+e−Annihilation at Energies between 2.6–5 GeV

Author: J. Z. Bai, Y. Ban, J. G. Bian, G. P. Chen, H. F. Chen, J. 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, W. Dunwoodie, 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, F. A. Harris, 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, X. Q. Hu, G. S. Huang, Y. Z. Huang, J. M. Izen, C. H. Jiang, Y. Jin, B. D. Jones, X. Ju, Z. J. Ke, D. Kong, Y. F. Lai, P. F. Lang, C. G. Li, D. Li, H. B. Li, J. Li, J. C. Li, P. Q. Li, R. B. Li, W. Li, W. G. Li, X. H. Li, X. N. Li, H. M. Liu, J. Liu, R. G. Liu, Y. Liu, X. C. Lou, F. Lu, J. G. Lu, X. L. Luo, E. C. Ma, J. M. Ma, R. Malchow, H. S. Mao, Z. P. Mao, X. C. Meng, J. Nie, S. L. Olsen, D. Paluselli, L. J. Pan, 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, Y. Sun, Y. Z. Sun, S. Q. Tang, W. Toki, G. L. Tong, G. S. Varner, F. Wang, L. S. Wang, L. Z. Wang, M. Wang, P. Wang, P. L. Wang, S. M. Wang, T. J. Wang, Y. Y. Wang, C. L. Wei, N. Wu, Y. G. Wu, D. M. Xi, X. M. Xia, P. P. Xie, 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, J. Yang, W. 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, 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, G. P. Zhou, H. S. Zhou, L. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, and B. A. Zhuang
Subjects: Physics, Particle physics, Annihilation, Spectrometer, Electron–positron annihilation, Hadron, General Physics and Astronomy, Sigma, Particle accelerator, law.invention, Nuclear physics, Cross section (physics), law, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, Astrophysics::Galaxy Astrophysics
Abstract: Using the upgraded Beijing Spectrometer, we have measured the total cross section for e(+)e(-) annihilation into hadronic final states at center-of-mass energies of 2.6, 3.2, 3.4, 3.55, 4.6, and 5.0 GeV. Values of R, sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->m(+)m(-)), are determined.
Published: 2000
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15. Charmonium Decays to Axial-Vector Plus Pseudoscalar Mesons

Author: E. C. Ma, H. L. Zhang, R. B. Li, G. P. Chen, Michael Schernau, W. Yang, J. Nie, S. W. Han, M. L. Gao, Y. Y. Shao, F. Wang, Z. P. Mao, J. Panetta, Y. C. Zhu, D. Kong, G. W. Yu, S. D. Gu, S. Q. Tang, J. He, H. S. Zhou, C. S. Gao, Jinxing Zheng, Meng Wang, S. M. Wang, Junguang Lu, W. R. Zhao, J. T. He, A. J. Lankford, Dehong Zhang, G. S. Varner, X. R. Qi, Yuehong Xie, Z. Z. Du, Wei Li, X. Q. Hu, H. L. Ding, W. X. Gu, Z. Q. Yu, W. H. Toki, J. W. Zhang, Y. B. Chen, W. G. Li, Y. F. Gu, Qiyang Zhang, Y. W. Liu, P. L. Wang, X. N. Li, Y. F. Lai, Y. H. Xie, C. M. Yang, M. He, Y. N. Guo, D. L. Shen, Q. H. Hu, T. J. Wang, Yong Ban, J. F. Qiu, B. Lowery, Y. L. Han, G. Rong, Z. G. Zhao, P. Wang, Y. H. Qu, H. Shen, M. G. Zhao, Bing Zhou, Z. P. Zheng, P. F. Lang, Y. Jin, He Kai, X. C. Meng, J. Standifird, Stephen L. Olsen, Xingguo Li, G. P. Zhou, J. Chen, S. T. Xue, Jiang Changhui, Cheng-Kui Li, X. L. Luo, D. Li, X. Y. Shen, G. F. Xu, G. L. Tong, B. W. Shen, I. Blum, Q. M. Zhu, G. Y. Hu, J. L. Hu, B. A. Zhuang, Cunfeng Wei, Xuan Zhang, S. Q. Zhang, F. A. Harris, D. H. Zhang, J. Z. Bai, Y. G. Wu, Y. Z. Huang, Y. K. Que, Xuanhong Lou, R. Malchow, H. B. Li, J. Oyang, R. G. Liu, H. S. Mao, C. S. Yu, Hao-Ze Chen, H. S. Sun, H. Z. Shi, F. C. Porter, Jiming Yang, H. W. Zhao, K. J. Zhu, Li Zhou, H. M. Hu, L. S. Zheng, Yuanbo Chen, D. Paluselli, Y. J. Sun, H. Y. Sheng, F. Lu, X. F. Song, F. Sun, L. Y. Dong, B. S. Cheng, C. X. Yu, L. Z. Wang, C. C. Zhang, J. Y. Zhang, M. H. Kelsey, N. D. Qi, Y. Yuan, Y. H. Yu, Y. S. Zhu, P. Gratton, X. M. Xia, J. H. Gu, Y. Q. Chen, Y. Y. Zhang, Yangsen Ye, C. Y. Yang, C. D. Qian, Xuan Yang, C. Z. Yuan, D. M. Xi, L. J. Pan, Jiawei Zhao, J. Yan, L. S. Wang, M. H. Ye, S. Q. Gao, Z. J. Ke, P. P. Xie, P. Q. Li, B. K. Kim, W. G. Yan, J. P. Liu, Jun-Bing Ma, J. Li, Lei Zhang, Joseph Izen, J. W. Zhao, J. G. Bian, W. Dunwoodie, T. Hu, D. G. Hitlin, B. D. Jones, S. W. Ye, H. M. Liu, M. Weaver, D. X. Zhao, B. Y. Zhang, Y. Z. Sun, Y. Y. Wang, and Xingzhu Cui
Subjects: Physics, Particle physics, Meson, Branching fraction, High Energy Physics::Lattice, High Energy Physics::Phenomenology, FOS: Physical sciences, General Physics and Astronomy, High Energy Physics - Experiment, Pseudoscalar, High Energy Physics - Experiment (hep-ex), High Energy Physics::Experiment, Pseudovector, Mathematical physics
Abstract: A sample of 3.79 million psi(2S) decays observed in the BES detector is used to study the decays of charmonium to axialvector plus pseudoscalar mesons. The branching fraction for psi(2S) to b1pi agrees with expectations. A contrasting behavior between the psi(2S) and the J/psi decays to K1K cannot be accommodated by an adjustment of the singlet-triplet axialvector mixing angle., 7 pages, 3 figures. Changes: excluded one figure, added information, systematic errors increased
Published: 1999
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16. Partial wave analysis of J/ψ→γ(ηπ+π−)

Author: H. B. Li, B.S. Zou, C. C. Zhang, F. Sun, J. Nie, Y. C. Zhu, P. L. Wang, H. Shen, Meng Wang, Y. Y. Shao, Y. Jin, C. S. Gao, X. C. Meng, Jun-Bing Ma, S. T. Xue, Jinxing Zheng, Y. Yuan, Y. S. Zhu, G. Y. Hu, Cunfeng Wei, D.V. Bugg, J. C. Li, J. W. Zhang, J. G. Bian, J. T. He, P. P. Xie, G. P. Zhou, M. L. Gao, S. W. Ye, H. W. Zhao, J. F. Qiu, Y. G. Xie, G. P. Chen, Cheng-Kui Li, W. D. Li, J. G. Lu, Y. K. Que, P. Q. Li, H. M. Hu, Z. G. Zhao, Y. H. Yu, X. Q. Hu, Chun-Hua Jiang, C. Y. Yang, P. F. Lang, J. W. Zhao, G. W. Yu, Q. M. Zhu, Jiawei Zhao, S. D. Gu, D. X. Zhao, B. Y. Zhang, K. L. He, S. W. Han, B. W. Shen, E. C. Ma, Y. Y. Wang, Dehong Zhang, J. P. Liu, H. L. Zhang, T. Hu, S. Q. Gao, Z. J. Ke, H. S. Sun, X. N. Li, J. Y. Zhang, D. Li, Y. F. Gu, C. D. Qian, Xuan Yang, Y. B. Chen, H. S. Zhou, X. Y. Zhang, K. J. Zhu, H. Z. Shi, R. G. Liu, X. F. Song, W. G. Li, W. G. Yan, W. X. Gu, Y. J. Sun, H. L. Ding, L. Z. Wang, Y. F. Lai, Y. Ban, Y. Q. Chen, J. He, R. B. Li, M. He, A. V. Sarantsev, H. F. Chen, Y. X. Ye, Lei Zhang, Y. Y. Zhang, D. L. Shen, G. Rong, H. M. Liu, Y. H. Qu, X. H. Li, L. P. Zhou, F. Wang, Z. P. Mao, C. M. Yang, D. H. Zhang, C. S. Yu, D. M. Xi, J. Yan, Z. P. Zheng, X. L. Luo, M. G. Zhao, J. Z. Bai, Q. H. Hu, Z. Q. Yu, J. L. Hu, G. L. Tong, Z. Z. Du, B. A. Zhuang, Jiming Yang, X. M. Xia, T. J. Wang, Y. G. Wu, G. F. Xu, J. C. Chen, S. Q. Zhang, S. M. Wang, L. S. Zheng, H. Y. Sheng, Y. Z. Sun, C. X. Yu, N. D. Qi, X. Y. Shen, W. R. Zhao, Y. B. Liu, X. R. Qi, L. S. Wang, S. Q. Tang, M. H. Ye, H. S. Mao, L. Y. Dong, B. S. Cheng, J. H. Gu, Bing Zhou, F. Lu, Y. H. Xie, C. Z. Yuan, Qiyang Zhang, P. Wang, Y. Z. Huang, Y. N. Guo, Y. L. Han, and Xingzhu Cui
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Partial wave analysis, Electron–positron annihilation, Invariant mass, Atomic physics
Abstract: A partial wave analysis of BES J / ψ → γ ( ηπ + π − ) data has been performed in the mass region 1.1 to 2.0 GeV. A peak is observed due to η (1440) in the ηπ + π − invariant mass distribution; J P =0 − is preferred over 1 + . Its mass is M =1385±7 MeV and it decays into both ησ and a 0 (980) π , with BR[ a 0 (980) π , a 0 → ηπ / ησ ]=0.70±0.12( stat )±0.20( syst ). Destructive interference between the two decay modes is observed. In addition, in the higher ηπ + π − mass region, there is a definite 2 −+ signal, with M =1840±15 MeV and Γ =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) π ; its mass and width are fitted to be M =1505±20 MeV and Γ =130 −20 +50 MeV.
Published: 1999
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17. ψ(2S)Hadronic Decays to Vector-Tensor Final States

Author: Xuan Yang, Z. Q. Yu, Q. H. Hu, Wei Li, J. H. Liu, J. W. Zhang, Y. S. Zhu, L. J. Pan, C. M. Yang, Y. B. Chen, Michael Schernau, W. Yang, W. G. Yan, F. Lu, L. Y. Ding, Q. J. Zhang, Z. P. Zheng, Lei Zhang, J. Nie, W. G. Li, J. C. Chen, G. L. Tong, B. A. Zhuang, Joseph Izen, T. J. Wang, C. G. Li, S. Feng, C. L. Wei, J. F. Qiu, Kai Yi, Y. Y. Shao, Hao-Ze Chen, Jiming Yang, H. S. Mao, L. Y. Dong, F. Wang, Z. P. Mao, D. X. Zhao, C. S. Gao, Dehong Zhang, B. Y. Zhang, B. S. Cheng, W. Dunwoodie, B. K. Kim, J. D. Huang, J. Panetta, Xuanhong Lou, R. Malchow, Y. Y. Wang, Y. C. Zhu, J. G. Bian, I. Blum, J. H. Gu, C. Z. Yuan, Lu Wang, J. T. He, C. H. Luo, Hai-Bo Li, H. M. Hu, Q. M. Zhu, Meng Wang, R. B. Li, J. M. Ma, Z. T. Yu, Xuan Zhang, Yuanbo Chen, X. C. Meng, J. He, J. Standifird, S. T. Xue, L. S. Zheng, Yi Jin, Y. W. Liu, L. S. Wang, M. H. Ye, P. F. Lang, Y. Z. Huang, Jie Zhang, B. W. Shen, Y. K. Que, S. W. Han, J. Chen, T. Hu, G. Y. Hu, M. Wang, E. C. Ma, C. D. Qian, Li Zhou, H. S. Sun, J. Oyang, J. P. Liu, A. M. Ma, H. S. Zhou, Chunmei Zhang, J. Li, D. G. Hitlin, X. Y. Shen, F. A. Harris, D. Li, H. L. Zhang, P. Gratton, X. M. Xia, Z. W. Chai, G. Rong, C. H. Jiang, Da-Hua Zhang, Y. Yuan, Y. H. Yu, M. G. Zhao, R. G. Liu, F. C. Porter, D. Paluselli, Yangsen Ye, H. W. Zhao, M. L. Gao, B. Lowery, S. W. Ye, S. Q. Tang, S. D. Gu, H. Z. Shi, S. Q. Gao, Z. J. Ke, Junqiang Zhang, P. P. Xie, H. M. Liu, M. Weaver, X. F. Song, J. W. Zhao, G. P. Chen, H. Shen, X. Q. Hu, Z. G. Zhao, W. R. Zhao, P. Q. Li, C. Y. Yang, Y. F. Gu, X. R. Qi, Y. L. Han, Y. H. Qu, Y. F. Lai, Y. Zhang, Yuehong Xie, Shun-Qi Zhang, M. He, D. L. Shen, X. Z. Cui, P. L. Wang, M. H. Kelsey, Stephen L. Olsen, L. C. Lu, W. J. Xiong, Y. Y. Zhang, W. X. Gu, C. S. Yu, W. H. Toki, Jianping Zheng, D. M. Xi, J. Yan, A. J. Lankford, G. F. Xu, F. Sun, X. N. Li, Y. N. Guo, H. L. Ding, Xingguo Li, G. P. Zhou, J. Y. Lu, D. Kong, S. M. Wang, Junguang Lu, Y. H. Xie, C. C. Xu, Y. Q. Chen, J. L. Hu, Y. G. Wu, Z. Z. Du, H. Y. Sheng, C. X. Yu, N. D. Qi, and J. Z. Bai
Subjects: Physics, Particle physics, Branching fraction, Hadron, General Physics and Astronomy, Mathematical physics
Abstract: Author(s): Bai, JZ; Bian, JG; Blum, I; Chai, ZW; Chen, GP; Chen, HF; Chen, J; Chen, JC; Chen, Y; Chen, YB; Chen, YQ; Cheng, BS; Cui, XZ; Ding, HL; Ding, LY; Dong, LY; Du, ZZ; Dunwoodie, W; Feng, S; Gao, CS; Gao, ML; Gao, SQ; Gratton, P; Gu, JH; Gu, SD; Gu, WX; Gu, YF; Guo, YN; Han, SW; Han, Y; Harris, FA; He, J; He, JT; He, M; Hitlin, DG; Hu, GY; Hu, HM; Hu, JL; Hu, QH; Hu, T; Hu, XQ; Huang, JD; Huang, YZ; Izen, JM; Jiang, CH; Jin, Y; Ke, ZJ; Kelsey, MH; Kim, BK; Kong, D; Lai, YF; Lang, PF; Lankford, A; Li, CG; Li, D; Li, HB; Li, J; Li, PQ; Li, RB; Li, W; Li, WD; Li, WG; Li, XH; Li, XN; Liu, HM; Liu, J; Liu, JH; Liu, RG; Liu, Y; Lou, XC; Lowery, B; Lu, F; Lu, JG; Lu, JY; Lu, LC; Luo, CH; Ma, AM; Ma, EC; Ma, JM; Malchow, R; Mao, HS; Mao, ZP; Meng, XC; Nie, J; Olsen, SL | Abstract: The decays of the ψ(2S) into vector plus tensor meson final states have been studied for the first time using the BES detector. We determine upper limits on branching fractions for ψ(2S) decays into ωf2, ρa2, K*0K*02 + c.c., and φf'2(1525) that are, in each case, significantly smaller than the corresponding branching fractions for the J/ψ meson, scaled according to the expectations of perturbative QCD. © 1998 The American Physical Society.
Published: 1998
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18. Study of theP-Wave Charmonium StateχcJinψ(2S)Decays

Author: W. R. Zhao, Y. L. Han, Xingzhu Cui, Z. T. Yu, X. R. Qi, Y. Zhang, H. Z. Shi, L. C. Lu, J. F. Qiu, J. L. Hu, X. F. Song, J. L. Zhang, B. K. Kim, F. Sun, L. Z. Wang, Y. Jin, Qiyang Zhang, M. H. Kelsey, J. Panetta, Y. C. Zhu, C. H. Luo, P. L. Wang, Meng Wang, S. D. Gu, P. Wang, X. C. Meng, J. Standifird, S. Q. Zhang, E. C. Ma, H. L. Zhang, R. B. Li, J. G. Lu, G. F. Xu, Y. X. Ye, H. W. Zhao, M. L. Gao, H. S. Mao, T. Hu, G. P. Chen, J. C. Li, L. Y. Dong, P. F. Lang, G. P. Zhou, W. G. Li, D. Li, F. Lu, Kai Yi, G. S. Varner, M. G. Zhao, W. D. Li, S. Q. Tang, B. S. Cheng, Y. Yuan, Y. H. Yu, Y. S. Zhu, Y. N. Guo, D. M. Xi, S. W. Ye, H. Shen, X. Q. Hu, M. Weaver, W. X. Gu, J. Yan, Cheng-Kui Li, Y. B. Chen, C. Y. Yang, X. Y. Zhang, D. G. Hitlin, J. H. Gu, Y. F. Gu, R. G. Liu, J. T. He, M. He, B. W. Shen, Y. F. Lai, H. F. Chen, W. H. Toki, J. G. Bian, D. L. Shen, I. Blum, W. J. Xiong, Cunfeng Wei, J. Z. Bai, J. W. Zhao, Stephen L. Olsen, Z. Q. Yu, Wei Li, F. A. Harris, Chun-Hua Jiang, S. W. Han, H. M. Liu, Y. Z. Huang, C. M. Yang, Z. Z. Du, J. Oyang, Jun-Bing Ma, L. J. Pan, J. W. Zhang, Xuan Yang, L. Y. Ding, Chang-Zheng Yuan, F. C. Porter, T. J. Wang, D. H. Zhang, C. S. Yu, H. B. Li, H. L. Ding, A. M. Ma, H. S. Zhou, D. Paluselli, A. J. Lankford, P. Gratton, D. X. Zhao, L. S. Wang, C. C. Zhang, B. Y. Zhang, M. H. Ye, X. M. Xia, Z. W. Chai, W. Dunwoodie, W. G. Yan, S. Feng, Jiming Yang, J. Y. Zhang, Y. Y. Wang, X. Y. Shen, H. Y. Sheng, Lei Zhang, J. He, C. X. Yu, S. Q. Gao, Z. J. Ke, D. Kong, N. D. Qi, Z. G. Zhao, S. M. Wang, Z. P. Zheng, Y. H. Qu, Joseph Izen, G. Rong, Y. G. Xie, L. P. Zhou, F. Wang, Y. Y. Zhang, Z. P. Mao, Y. K. Que, Q. H. Hu, P. P. Xie, G. L. Tong, B. A. Zhuang, J. Chen, H. M. Hu, J. C. Chen, Xuanhong Lou, R. Malchow, P. Q. Li, L. S. Zheng, Y. G. Wu, C. D. Qian, J. P. Liu, Y. Q. Chen, X. H. Li, J. Y. Lu, Y. H. Xie, C. C. Xu, Y. B. Liu, Q. M. Zhu, M. Z. Wang, H. S. Sun, X. N. Li, B. Lowery, J. H. Liu, Michael Schernau, W. Yang, J. Nie, Y. Y. Shao, C. S. Gao, Jinxing Zheng, J. D. Huang, S. T. Xue, G. Y. Hu, and Dehong Zhang
Subjects: Physics, Stereochemistry, Branching fraction, Quantum mechanics, General Physics and Astronomy
Abstract: Author(s): Bai, JZ; Bian, JG; Blum, I; Chai, ZW; Chen, GP; Chen, HF; Chen, J; Chen, JC; Chen, Y; Chen, YB; Chen, YQ; Cheng, BS; Cui, XZ; Ding, HL; Ding, LY; Dong, LY; Du, ZZ; Dunwoodie, W; Feng, S; Gao, CS; Gao, ML; Gao, SQ; Gratton, P; Gu, JH; Gu, SD; Gu, WX; Gu, YF; Guo, YN; Han, SW; Han, Y; Harris, FA; He, J; He, JT; He, M; Hitlin, DG; Hu, GY; Hu, HM; Hu, JL; Hu, QH; Hu, T; Hu, XQ; Huang, JD; Huang, YZ; Izen, JM; Jiang, CH; Jin, Y; Ke, ZJ; Kelsey, MH; Kim, BK; Kong, D; Lai, YF; Lang, PF; Lankford, A; Li, CG; Li, D; Li, HB; Li, J; Li, PQ; Li, RB; Li, W; Li, WD; Li, WG; Li, XH; Li, XN; Liu, HM; Liu, J; Liu, JH; Liu, RG; Liu, Y; Lou, XC; Lowery, B; Lu, F; Lu, JG; Lu, JY; Lu, LC; Luo, CH; Ma, AM; Ma, EC; Ma, JM; Malchow, R; Mao, HS; Mao, ZP; Meng, XC; Nie, J; Olsen, SL | Abstract: The processes ψ(2S) → I π+ π−, γK+ K−, and γpp¯ have been studied using a sample of 3.79 × 106 ψ(2S) decays. We determine the total width of the χc0 to be γtotχc0 = 14.3 ± 2.0 ± 3.0 MeV. We present the first measurement of the branching fraction B(χc0 → pp¯) = (15.9 ± 4.3 ± 5.3) × 10−5, where the first error is statistical and the second one is systematic. Branching fractions of χc0, 2 → π+ π− and K+ K− are also reported. © 1998 American Physical Society.
Published: 1998
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19. Experimental Study ofJ/ψRadiative Decay toπ0π0

Author: J. H. Liu, R. B. Li, J. Nie, Y. Y. Shao, C. S. Gao, D. Li, Jinxing Zheng, J. D. Huang, Q. H. Hu, X. Y. Zhang, R. G. Liu, Y. Yuan, Y. H. Yu, Y. S. Zhu, H. L. Ding, H. Shen, Q. M. Zhu, S. D. Gu, M. Z. Wang, H. S. Sun, X. N. Li, Miao He, Jun-Bing Ma, D. X. Zhao, B. Y. Zhang, Y. Y. Wang, Jie Zhang, L. P. Zhou, F. Wang, Cunfeng Wei, T. J. Wang, Qiyang Zhang, J. Y. Lu, S. T. Xue, D. M. Xi, J. Yan, Z. P. Mao, S. Feng, Y. H. Xie, S. W. Ye, J. P. Liu, H. Z. Shi, X. Q. Hu, Y. F. Gu, J. F. Qiu, X. F. Song, W. X. Gu, Z. Q. Yu, J. G. Lu, G. Y. Hu, C. D. Qian, F. Sun, C. C. Xu, S. M. Wang, L. Z. Wang, Xingzhu Cui, M. L. Gao, T. Hu, P. Wang, D. L. Shen, Y. B. Liu, Z. T. Yu, G. P. Zhou, J. T. He, J. Z. Bai, Y. B. Chen, Y. X. Ye, H. W. Zhao, J. C. Chen, Y. H. Qu, Cheng-Kui Li, W. J. Xiong, X. Y. Shen, Y. F. Lai, P. P. Xie, Chun-Hua Jiang, H. F. Chen, B. W. Shen, Y. Q. Chen, Z. Z. Du, J. G. Bian, Y. C. Zhu, C. Y. Yang, Y. Jin, X. H. Li, C. H. Luo, P. L. Wang, P. Q. Li, Xuan Yang, S. Q. Tang, W. G. Li, Y. G. Xie, Y. K. Que, L. S. Zheng, Meng Wang, H. M. Hu, W. G. Yan, H. M. Liu, Lei Zhang, J. L. Hu, G. Rong, Y. G. Wu, P. F. Lang, F. Lu, J. Y. Zhang, D. H. Zhang, C. S. Yu, J. He, H. Y. Sheng, G. F. Xu, E. C. Ma, H. L. Zhang, C. X. Yu, N. D. Qi, S. W. Han, Dehong Zhang, Y. Y. Zhang, J. C. Li, A. M. Ma, H. S. Zhou, M. G. Zhao, C. Z. Yuan, H. B. Li, X. M. Xia, C. C. Zhang, Z. W. Chai, Z. G. Zhao, J. W. Zhang, Z. J. Guo, S. Q. Gao, Z. J. Ke, Jiming Yang, Y. Z. Huang, J. W. Zhao, Z. P. Zheng, G. P. Chen, W. D. Li, W. R. Zhao, Y. N. Guo, G. L. Tong, B. A. Zhuang, Y. L. Han, L. C. Lu, H. S. Mao, X. R. Qi, L. Y. Dong, Y. Zhang, B. S. Cheng, J. H. Gu, C. M. Yang, Kai Yi, Wei Li, L. S. Wang, M. H. Ye, S. Q. Zhang, and X. C. Meng
Subjects: Nuclear physics, Physics, Electron–positron annihilation, Radiative decay, General Physics and Astronomy, Atomic physics
Published: 1998
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20. Evidence for the leptonic decay D→μν

Author: J. Panetta, O. Bardon, S. M. Chen, Y. C. Zhu, E. Soderstrom, Wei Li, K. K. Young, P. L. Wang, X. F. Zhou, H. Y. Sheng, L. J. Pan, C. X. Yu, Q. Liu, Y. Luo, N. D. Qi, Michael J. Fero, Q. Y. Li, C. M. Yang, G. Zioulas, S. Q. Zhang, J. He, Chun-Hua Jiang, R. B. Li, H. S. Mao, S. Z. Lin, W. R. Zhao, H. W. Zhao, J. C. Li, Y. Zhang, S. Whittaker, J. G. Lu, F. A. Harris, L. Jones, T. H. Burnett, D. Kong, Y. P. Tan, S. Q. Tang, Y. H. Zhou, X. R. Shi, Z. P. Zheng, R. J. Wilson, D. H. Zhang, C. S. Yu, B. S. Cheng, G. P. Chen, S. Jin, L. P. Zhou, F. Wang, T. Hu, C. Y. Yang, Z. Z. Du, S. J. Sun, S. M. Wang, R. Cowan, Z. P. Mao, D. Z. Xu, G. L. Tong, W. D. Li, E. Prabhakar, J. H. Gu, X. C. Meng, B. A. Zhuang, F. Li, J. Standifird, H. L. Ni, R. G. Liu, J. Schultz, Xingzhu Cui, A. J. Lankford, B. Schmid, S. H. Kang, P. F. Lang, R. K. Yamamoto, G. P. Zhou, D. Q. Huang, D. G. Hitlin, Z. A. Liu, H. Shen, M. Mandelkern, C. Z. Yuan, Y. L. Han, A. J. S. Smith, Y. Jin, Q. P. Jia, Cunfeng Wei, J. Y. Zhang, E. Torrence, A. Breakstone, L. S. Wang, M. H. Ye, R. S. Xu, C. C. Zhang, S. T. Xue, X. L. Fan, B. K. Kim, P. Gratton, Y. S. Zhu, H. L. Ding, J. Z. Bai, W. G. Yan, Y. K. Que, X. M. Xia, J. W. Zhang, Y. Y. Zhang, M. L. Gao, J. W. Zhao, E. C. Ma, T. J. Wang, Z. Q. Xu, Lei Zhang, X. Q. Hu, Z. Q. Yu, D. Paluselli, Joseph Izen, H. L. Zhang, Y. F. Gu, G. Rong, H. Z. Shi, D. M. Xi, W. J. Wisniewski, Y. B. Chen, J. Yan, D. X. Zhao, B. Y. Zhang, M. He, J. Synodinos, Y. F. Lai, H. F. Chen, D. P. Stoker, J. C. Chen, D. L. Shen, Y. Y. Wang, R. Malchow, X. F. Song, X. Y. Shen, Jun-Bing Ma, J. Quigley, J. Oyang, J. Fang, L. S. Zheng, S. Q. Gao, Z. J. Ke, S. J. Chen, L. Z. Wang, S. D. Gu, G. Y. Hu, B. Lowery, M. H. Kelsey, M. G. Zhao, W. Dunwoodie, F. Sun, Q. M. Zhu, S. W. Han, M. Z. Wang, S. Q. Luo, H. S. Sun, X. N. Li, I. Blum, X. C. Lou, A. M. Ma, H. S. Zhou, J. H. Liu, Y. Z. Huang, Michael Schernau, W. Yang, F. C. Porter, J. Nie, Y. Y. Shao, C. S. Gao, Jinxing Zheng, W. X. Gu, Y. N. Guo, S. L. Olsen, W. H. Toki, H. B. Lan, S. Z. Ye, M. Hatanaka, P. P. Xie, P. Q. Li, W. G. Li, H. M. Liu, P. Wang, Y. B. Liu, Y. Q. Chen, and X. H. Li
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Branching fraction, Electron–positron annihilation, Nuclear physics, Pseudoscalar, D meson, High Energy Physics::Experiment, Center of mass, Exponential decay, Neutrino, Nuclear Experiment
Abstract: Purely leptonic decays of the charged D meson have been studied using the reaction e + e − →D ∗+ D − at a center of mass energy of 4.03 GeV. A search was performed for D→μνμ recoiling against a D0 or D+ which had been reconstructed from its hadronic decay products. A single event candidate was found in the reaction e + e − →D ∗+ D − , where D ∗+ →π + D 0 with the D0→K−π+, and the recoiling D− decaying via D − →μ − ν μ . This yields a branching fraction value B(D→μνμ)=0.08−0.05−0.02+0.16+0.05%, and a corresponding value of the pseudoscalar decay constant fD=300−150−40+180+80 MeV.
Published: 1998
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21. Decays of the J/ψ to and final states

Author: Z. Q. Yu, Xingzhu Cui, Z. T. Yu, Y. B. Chen, H. S. Mao, W. H. Zhao, Kai Yi, L. Y. Dong, B. S. Cheng, Qiyang Zhang, S. D. Gu, Y. Q. Chen, Y. G. Xie, Y. K. Que, H. M. Hu, W. X. Gu, Jun-Bing Ma, P. Wang, S. T. Xue, J. C. Chen, X. H. Li, H. Y. Sheng, Y. H. Qu, J. H. Gu, C. X. Yu, G. Y. Hu, C. D. Qian, S. Feng, T. J. Wang, X. C. Meng, N. D. Qi, L. P. Zhou, F. Wang, L. S. Zheng, Xuan Yang, J. Y. Lu, Z. P. Mao, S. M. Wang, Y. Jin, H. Z. Shi, D. Li, J. G. Lu, Y. H. Xie, X. F. Song, W. G. Yan, Wei Li, F. Lu, C. C. Xu, H. W. Zhao, P. F. Lang, G. P. Zhou, S. Q. Zhang, L. Z. Wang, Y. B. Liu, X. Y. Zhang, Dehong Zhang, S. W. Ye, R. G. Liu, M. G. Zhao, X. Y. Shen, Lei Zhang, Cheng-Kui Li, L. Y. Ding, J. Z. Bai, J. L. Hu, Y. Yuan, Y. S. Zhu, Y. Z. Huang, S. Q. Tang, C. Y. Yang, G. Rong, Y. G. Wu, Y. X. Ye, J. F. Qiu, T. Hu, Z. Z. Du, J. He, J. Y. Zhang, L. S. Wang, R. B. Li, C. M. Yang, Y. Y. Zhang, M. H. Ye, C. Z. Yuan, S. W. Han, D. X. Zhao, B. Y. Zhang, H. L. Ding, B. W. Shen, W. R. Zhao, Y. Y. Wang, J. G. Bian, A. M. Ma, H. S. Zhou, D. M. Xi, X. R. Qi, Y. Zhang, J. Yan, Z. P. Zheng, Y. N. Guo, Y. L. Han, L. C. Lu, J. L. Zhang, J. T. He, S. Q. Gao, Z. J. Ke, H. Shen, G. L. Tong, Y. H. Yu, B. A. Zhuang, J. W. Zhao, Cunfeng Wei, Chun-Hua Jiang, Q. H. Hu, J. W. Zhang, Jiming Yang, M. L. Gao, F. Sun, G. P. Chen, W. D. Li, Y. F. Lai, H. F. Chen, D. H. Zhang, C. S. Yu, H. B. Li, E. C. Ma, H. L. Zhang, C. C. Zhang, J. P. Liu, J. C. Li, P. P. Xie, P. Q. Li, W. G. Li, H. M. Liu, Z. G. Zhao, X. M. Xia, Z. W. Chai, X. Q. Hu, Y. F. Gu, M. He, D. L. Shen, W. J. Xiong, J. H. Liu, G. F. Xu, J. Nie, Y. Y. Shao, C. S. Gao, Y. C. Zhu, C. H. Luo, P. L. Wang, Jinxing Zheng, J. D. Huang, Meng Wang, Q. M. Zhu, M. Z. Wang, H. S. Sun, and X. N. Li
Subjects: Physics, Nuclear and High Energy Physics, Angular distribution, Atomic physics, Branching (polymer chemistry)
Abstract: With 7.8 million produced J / ψ events collected by the BES detector at the BEPC, decays J/ψ→Λ Λ ,Λ Λ γ and Λ Λ π 0 are analysed. The branching ratios are measured to be Br (J/ψ→Λ Λ )=(1.08±0.06±0.24)×10 −3 , Br (J/ψ→Λ Λ γ) −4 (90% C.L. ) , Br (J/ψ→Λ Λ π 0 )=(2.3±0.7±0.8)×10 −4 , respectively. The angular distribution for J/ψ→Λ Λ is of the form d N d cos θ =N 0 (1+α cos 2 θ) , from which we determine α =0.52±0.33±0.13.
Published: 1998
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22. Search forψ(2S)production ine+e−annihilations at 4.03 GeV

Author: C. C. Zhang, J. G. Lu, H. Z. Shi, T. Hu, C. M. Yang, X. F. Song, Y. Jin, T. J. Wang, P. F. Lang, D. Kong, L. Z. Wang, Qiyang Zhang, Y. Q. Chen, Dehong Zhang, P. P. Xie, M. H. Kelsey, D. G. Hitlin, S. M. Wang, E. C. Ma, X. H. Li, J. Panetta, I. Blum, H. L. Zhang, J. He, Z. P. Zheng, Q. H. Hu, Y. C. Zhu, R. B. Li, P. Wang, S. W. Ye, P. Q. Li, H. W. Zhao, C. H. Luo, Y. X. Ye, X. Y. Shen, M. Weaver, G. P. Zhou, J. W. Zhao, W. G. Li, Cheng-Kui Li, P. L. Wang, M. G. Zhao, D. M. Xi, Meng Wang, Y. Z. Huang, J. Yan, H. S. Mao, J. L. Hu, S. T. Xue, F. C. Porter, D. P. Stoker, J. Oyang, L. Y. Dong, S. Q. Gao, Z. J. Ke, F. Sun, B. S. Cheng, S. W. Han, Y. G. Wu, H. M. Liu, L. P. Zhou, G. Y. Hu, F. Lu, G. L. Tong, D. Paluselli, D. X. Zhao, S. Q. Tang, B. W. Shen, B. A. Zhuang, F. Wang, B. Y. Zhang, X. C. Meng, S. Q. Zhang, A. M. Ma, Z. P. Mao, J. Standifird, J. C. Chen, Xuanhong Lou, R. Malchow, B. Lowery, J. T. He, J. C. Li, H. S. Zhou, Y. G. Xie, Y. K. Que, J. Chen, H. M. Hu, Y. Y. Wang, J. H. Gu, J. Schultz, H. L. Ding, Chun-Hua Jiang, Y. L. Han, F. A. Harris, Jiming Yang, L. S. Zheng, W. Dunwoodie, S. D. Gu, J. H. Liu, Xingzhu Cui, L. C. Lu, J. Y. Lu, Michael Schernau, W. Yang, J. F. Qiu, Stephen L. Olsen, J. Y. Zhang, Kai Yi, M. Mandelkern, L. S. Wang, J. L. Zhang, J. Nie, C. Z. Yuan, M. H. Ye, Y. H. Xie, J. P. Liu, G. P. Chen, Y. Yuan, D. H. Zhang, Z. Q. Yu, Y. H. Yu, Y. S. Zhu, C. C. Xu, M. L. Gao, Y. Y. Shao, H. Shen, C. S. Yu, W. D. Li, D. Li, C. S. Gao, Y. H. Qu, W. X. Gu, Y. B. Liu, Y. Y. Zhang, Jinxing Zheng, J. D. Huang, S. Feng, A. J. Lankford, Y. B. Chen, X. Y. Zhang, W. H. Toki, Wei Li, Cunfeng Wei, R. G. Liu, Q. M. Zhu, Y. F. Lai, L. J. Pan, H. F. Chen, W. R. Zhao, B. Schmid, J. W. Zhang, L. Y. Ding, M. Z. Wang, X. R. Qi, Y. Zhang, Y. N. Guo, H. S. Sun, X. N. Li, H. Y. Sheng, C. X. Yu, N. D. Qi, X. Q. Hu, Y. F. Gu, M. He, D. L. Shen, W. J. Xiong, P. Gratton, Z. Z. Du, X. M. Xia, Z. W. Chai, G. F. Xu, J. Z. Bai, Xuan Yang, W. G. Yan, B. K. Kim, Lei Zhang, Joseph Izen, G. Rong, Jun-Bing Ma, Z. T. Yu, C. D. Qian, C. Y. Yang, J. G. Bian, and H. B. Li
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Photon, Electron, Radiation, law.invention, Nuclear physics, Positron, law, Metastability, High Energy Physics::Experiment, Production (computer science), Collider
Abstract: A search is performed for the production of the ψ(2S) in e^+e^- annihilation at a center-of-mass energy of 4.03 GeV using the BES detector operated at the Beijing Electron Positron Collider (BEPC). The kinematic features of the reconstructed ψ(2S) signal are consistent with its being produced only in association with an energetic photon resulting from initial state radiation (ISR). Limits are placed on ψ(2S) production from the decay of unknown charmonia or metastable hybrids that might be produced in e^+e^- annihilations at 4.03 GeV. Under the assumption that the observed cross section for ψ(2S) production is due entirely to ISR, the partial width Γ_(ee) of the ψ(2S) is measured to be 2.07±0.32keV.
Published: 1998
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23. Direct measurement ofB(Ds+→φX+)

Author: J. Z. Bai, O. Bardon, I. Blum, A. Breakstone, T. Burnett, G. P. Chen, H. F. Chen, J. Chen, S. J. Chen, S. M. Chen, Y. Chen, Y. B. Chen, Y. Q. Chen, B. S. Cheng, R. F. Cowan, X. Z. Cui, H. L. Ding, Z. Z. Du, W. Dunwoodie, X. L. Fan, J. Fang, C. S. Gao, M. L. Gao, S. Q. Gao, P. Gratton, J. H. Gu, S. D. Gu, W. X. Gu, Y. F. Gu, Y. N. Guo, S. W. Han, Y. Han, F. A. Harris, J. He, M. He, D. G. Hitlin, G. Y. Hu, T. Hu, X. Q. Hu, D. Q. Huang, Y. Z. Huang, J. M. Izen, C. H. Jiang, S. Jin, Y. Jin, L. Jones, S. H. Kang, Z. J. Ke, M. H. Kelsey, B. K. Kim, D. Kong, Y. F. Lai, H. B. Lan, P. F. Lang, A. Lankford, F. Li, J. Li, P. Q. Li, Q. Li, R. B. Li, W. Li, W. D. Li, W. G. Li, X. H. Li, X. N. Li, S. Z. Lin, H. M. Liu, J. Liu, J. H. Liu, Q. Liu, R. G. Liu, Y. Liu, Z. A. Liu, X. C. Lou, B. Lowery, J. G. Lu, J. Y. Lu, S. Luo, Y. Luo, A. M. Ma, E. C. Ma, J. M. Ma, R. Malchow, M. Mandelkern, H. S. Mao, Z. P. Mao, X. C. Meng, H. L. Ni, J. Nie, S. L. Olsen, J. Oyang, D. Paluselli, L. J. Pan, J. Panetta, F. Porter, E. Prabhakar, N. D. Qi, Y. K. Que, G. Rong, M. Schernau, B. Schmid, J. Schultz, Y. Y. Shao, D. L. Shen, H. Shen, X. Y. Shen, H. Y. Sheng, H. Z. Shi, E. Soderstrom, X. F. Song, J. Standifird, D. Stoker, F. Sun, H. S. Sun, S. J. Sun, J. Synodinos, Y. P. Tan, S. Q. Tang, W. Toki, G. L. Tong, F. Wang, L. S. Wang, L. Z. Wang, M. Wang, P. Wang, P. L. Wang, S. M. Wang, T. J. Wang, Y. Y. Wang, M. Weaver, C. L. Wei, W. J. Wisniewski, D. M. Xi, X. M. Xia, P. P. Xie, D. Z. Xu, R. S. Xu, Z. Q. Xu, S. T. Xue, J. Yan, W. G. Yan, C. M. Yang, C. Y. Yang, H. Yang, W. Yang, M. H. Ye, S. Z. Ye, K. Young, C. S. Yu, C. X. Yu, Z. Q. Yu, C. Z. Yuan, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. L. Zhang, J. Zhang, J. W. Zhang, L. S. Zhang, S. Q. Zhang, Y. Zhang, Y. Y. Zhang, D. X. Zhao, J. W. Zhao, M. Zhao, W. R. Zhao, J. P. Zheng, L. S. Zheng, Z. P. Zheng, G. P. Zhou, H. S. Zhou, L. Zhou, X. F. Zhou, Y. H. Zhou, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, and B. A. Zhuang
Subjects: Hadronic decay, Nuclear physics, Physics, Nuclear and High Energy Physics, Pair production, Luminosity (scattering theory), Branching fraction
Abstract: The absolute inclusive branching fraction of D_s^+→φX^+ has been measured from data collected by the BES detector at a center-of-mass energy of 4.03 GeV, corresponding to an integrated luminosity of 22.3 pb^(-1). At this energy, direct pair production e^+e^-→D_s^+D_s^- has been observed. We have selected D_s candidate events by reconstructing five hadronic decay modes D_s^+→φπ^+, K^(0*)K^+, K^0K^+, f0^(π+) and K^0K^-π^+π^+ and have searched for inclusive φ’s in the recoiling D_s^-. We observed three recoiling φ’s in the 166.4 ± 31.8 D_s candidate events, which leads to the absolute branching fraction B(D_s^+→φX^+)=(17.8(-7.2 -6.3)^(+15.1+0.6)) % and B(D_s-6.3+→φπ-6.3+)=(3.6_(-1.6 -1.3)(^_3.1+0.4) %. [S0556-2821(97)02423-5]
Published: 1998
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24. Measurement of the branching fraction ofDsinclusive semileptonic decayDs+→e+X

Author: O. Bardon, J. Y. Lu, Q. P. Jia, J. C. Li, Kai Yi, L. Zhang, B. W. Shen, Michael J. Fero, Y. B. Liu, J. Panetta, P. F. Lang, X. C. Meng, F. A. Harris, C. C. Zhang, S. M. Chen, Y. C. Zhu, Y. Luo, J. T. He, X. Q. Hu, J. Standifird, C. M. Yang, Jun Wang, Y. Q. Chen, X. H. Li, Y. F. Gu, M. L. Gao, S. Z. Lin, W. R. Zhao, M. He, P. L. Wang, Meng Wang, S. D. Gu, X. L. Fan, D. L. Shen, Jun-Bing Ma, H. B. Lan, Y. Zhang, W. J. Xiong, Z. P. Zheng, Dehong Zhang, J. L. Hu, Y. G. Wu, Qiyang Zhang, Y. Jin, L. Jones, Chun-Hua Jiang, Y. B. Chen, E. Soderstrom, B. Lowery, Z. Q. Yu, S. Q. Tang, J. G. Lu, Z. Q. Xu, H. Z. Shi, S. Q. Zhang, J. H. Liu, R. B. Li, Y. H. Zhou, Xiru Huang, X. F. Song, Y. F. Lai, H. L. Ni, J. W. Zhao, Michael Schernau, W. Yang, Wei Li, H. F. Chen, L. Z. Wang, G. L. Tong, G. F. Xu, S. Z. Ye, M. H. Kelsey, J. Nie, S. Jin, Xuan Yang, B. A. Zhuang, T. Hu, S. T. Xue, L. J. Pan, J. Oyang, Q. H. Hu, E. C. Ma, J. F. Qiu, G. Y. Hu, Y. Y. Shao, C. S. Gao, W. X. Gu, H. L. Zhang, W. G. Yan, Jinxing Zheng, W. H. Toki, D. M. Xi, T. H. Burnett, D. G. Hitlin, J. Yan, D. P. Stoker, H. Yang, Q. M. Zhu, P. Gratton, L. P. Zhou, Lei Zhang, F. Wang, C. Y. Yang, X. M. Xia, Z. P. Mao, F. Sun, T. J. Wang, M. Z. Wang, Z. W. Chai, Joseph Izen, G. Rong, H. S. Sun, X. N. Li, Y. S. Zhu, J. Synodinos, J. Yang, L. S. Wang, M. H. Ye, X. Y. Shen, R. S. Xu, Y. H. Qu, E. Prabhakar, J. G. Bian, A. J. Lankford, Y. K. Que, J. Chen, W. Dunwoodie, G. P. Chen, W. D. Li, D. Z. Xu, B. K. Kim, S. W. Han, H. S. Mao, A. M. Ma, H. S. Zhou, Q. Y. Li, J. He, Stephen L. Olsen, B. S. Cheng, D. H. Zhang, C. S. Yu, X. Y. Zhang, R. G. Liu, J. H. Gu, J. Schultz, B. Schmid, K. K. Young, J. P. Liu, S. Q. Gao, Z. J. Ke, W. G. Li, H. Shen, H. M. Liu, Cunfeng Wei, P. P. Xie, P. Q. Li, J. W. Zhang, D. X. Zhao, B. Y. Zhang, Y. Y. Wang, Q. Liu, R. Cowan, S. W. Ye, M. Weaver, Xingzhu Cui, Z. T. Yu, A. Breakstone, Y. N. Guo, Y. L. Han, S. Q. Luo, I. Blum, H. W. Zhao, Y. Z. Huang, F. C. Porter, D. Paluselli, D. Kong, Y. P. Tan, P. Wang, M. G. Zhao, S. M. Wang, X. R. Shi, J. C. Chen, F. Lu, Xuanhong Lou, R. Malchow, J. Fang, L. S. Zheng, G. P. Zhou, Z. Z. Du, S. H. Kang, S. J. Sun, J. Y. Zhang, M. Mandelkern, C. Z. Yuan, Y. Y. Zhang, H. L. Ding, W. J. Wisniewski, Z. A. Liu, J. Z. Bai, H. Y. Sheng, C. X. Yu, and N. D. Qi
Subjects: Hadronic decay, Combinatorics, Physics, Semileptonic decay, Nuclear and High Energy Physics, Meson, Branching fraction
Abstract: Author(s): Bai, JZ; Bardon, O; Bian, JG; Blum, I; Breakstone, A; Burnett, T; Chai, ZW; Chen, GP; Chen, HF; Chen, J; Chen, JC; Chen, SM; Chen, Y; Chen, YB; Chen, YQ; Cheng, BS; Cowan, RF; Cui, XZ; Ding, HL; Du, ZZ; Dunwoodie, W; Fan, XL; Fang, J; Fero, M; Gao, CS; Gao, ML; Gao, SQ; Gratton, P; Gu, JH; Gu, SD; Gu, WX; Gu, YF; Guo, YN; Han, SW; Han, Y; Harris, FA; He, J; He, JT; He, M; Hitlin, DG; Hu, GY; Hu, JL; Hu, QH; Hu, T; Hu, XQ; Huang, XP; Huang, YZ; Izen, JM; Jia, QP; Jiang, CH; Jin, S; Jin, Y; Jones, L; Kang, SH; Ke, ZJ; Kelsey, MH; Kim, BK; Kong, D; Lai, YF; Lan, HB; Lang, PF; Lankford, A; Li, J; Li, PQ; Li, Q; Li, RB; Li, W; Li, WD; Li, WG; Li, XH; Li, XN; Lin, SZ; Lu, F; Liu, HM; Liu, J; Liu, JH; Liu, Q; Liu, RG; Liu, Y; Liu, ZA; Lou, XC; Lowery, B; Lu, JG; Lu, JY; Luo, SQ | Abstract: The absolute inclusive semileptonic branching fraction of the [Formula presented] meson has been measured based on [Formula presented] of [Formula presented] collision data collected with the Beijing Spectrometer at [Formula presented] At this energy, the [Formula presented] are produced in pairs: [Formula presented] We reconstructed [Formula presented] [Formula presented] events in five hadronic decay modes. In the recoil system of these events, several [Formula presented] inclusive semileptonic decays were observed and the branching fraction is estimated to be [Formula presented] © 1997 The American Physical Society.
Published: 1997
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25. Structure Analysis of thefJ(1710)in the Radiative DecayJ/ψ→γK+K−

Author: M. L. Gao, Y. L. Han, Y. B. Chen, Xuan Yang, L. C. Lu, Y. F. Lai, Kai Yi, F. Lu, H. F. Chen, L. S. Wang, H. B. Lan, M. H. Ye, W. G. Yan, Y. P. Tan, S. M. Wang, S. Q. Zhang, Jun-Bing Ma, Lei Zhang, S. Q. Luo, H. L. Ni, G. Rong, S. Z. Lin, W. R. Zhao, Y. Zhang, S. D. Gu, S. W. Han, B. W. Shen, Z. Z. Du, Jiming Yang, S. J. Sun, A. M. Ma, X. Q. Hu, H. S. Zhou, G. P. Zhou, S. H. Kang, Q. H. Hu, E. C. Ma, C. Z. Yuan, C. C. Zhang, Z. D. Cheng, X. Y. Zhang, R. G. Liu, H. L. Zhang, Y. F. Gu, J. F. Qiu, Q. J. Li, Wei Li, Y. Z. Huang, S. Q. Tang, J. G. Bian, Qiyang Zhang, D. L. Shen, X. C. Meng, W. J. Xiong, Y. Jin, H. W. Zhao, S. Q. Gao, Z. J. Ke, De. H. Zhang, W. X. Gu, P. Wang, L. Zhang, Z. A. Liu, J. C. Li, F. Sun, H. S. Mao, W. H. Zhao, W. Y. Ding, C. Y. Yang, Z. P. Zheng, P. F. Lang, S. M. Chen, Y. C. Zhu, H. L. Ding, B. S. Cheng, P. L. Wang, Men Wang, G. F. Xu, S. Jin, Y. N. Guo, T. J. Wang, J. H. Gu, Xiru Huang, J. Z. Bai, D. H. Zhang, G. L. Tong, C. S. Yu, Y. Luo, H. Shen, R. B. Li, Z. Q. Xu, Y. H. Qu, J. T. He, B. A. Zhuang, Y. S. Zhu, Q. Liu, R. S. Xu, J. G. Lu, Y. G. Xie, H. Y. Sheng, J. He, Y. H. Zhou, Y. K. Que, Cunfeng Wei, T. Hu, C. X. Yu, X. Y. Shen, N. D. Qi, J. W. Zhang, C. M. Yang, Chun-Hua Jiang, X. M. Xia, Z. W. Chai, Z. Q. Yu, M. G. Zhao, J. H. Liu, Xingzhu Cui, Z. T. Yu, J. Nie, Y. Y. Shao, C. S. Gao, Jinxing Zheng, J. C. Chen, Q. M. Zhu, Miao He, J. Fang, L. S. Zheng, M. Z. Wang, S. W. Ye, H. S. Sun, X. N. Li, L. P. Zhou, F. Wang, D. M. Xi, J. Yan, Z. P. Mao, J. Y. Zhang, D. X. Zhao, B. Y. Zhang, Y. Y. Zhang, Y. Y. Wang, S. Z. Ye, S. T. Xue, G. Y. Hu, H. Z. Shi, X. F. Song, L. Z. Wang, W. G. Li, H. M. Liu, J. P. Liu, P. P. Xie, P. Q. Li, X. L. Fan, J. W. Zhao, G. P. Chen, W. D. Li, Jun Wang, Y. Q. Chen, X. H. Li, J. Y. Lu, Y. B. Liu, J. L. Hu, and Y. G. Wu
Subjects: Nuclear physics, Physics, Structure analysis, Electron–positron annihilation, Radiative decay, General Physics and Astronomy
Published: 1996
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26. Studies ofξ(2230) inJ/ψRadiative Decays

Author: J. Z. Bai, G. P. Chen, H. F. Chen, S. J. Chen, S. M. Chen, Y. Chen, Y. B. Chen, Y. Q. Chen, B. S. Cheng, X. Z. Cui, H. L. Ding, W. Y. Ding, Z. Z. Du, X. L. Fan, J. Fang, C. S. Gao, M. L. Gao, S. Q. Gao, J. H. Gu, S. D. Gu, W. X. Gu, Y. F. Gu, Y. N. Guo, S. W. Han, Y. Han, J. He, M. He, G. Y. Hu, T. Hu, X. Q. Hu, D. Q. Huang, T. Huang, Y. Z. Huang, C. H. Jiang, S. Jin, Y. Jin, S. H. Kang, Z. J. Ke, Y. F. Lai, H. B. Lan, P. F. Lang, F. Li, J. Li, P. Q. Li, Q. Li, R. B. Li, W. Li, W. D. Li, W. G. Li, X. H. Li, X. N. Li, S. Z. Lin, H. M. Liu, J. Liu, J. H. Liu, Q. Liu, R. G. Liu, Y. Liu, Z. A. Liu, J. G. Lu, J. Y. Lu, S. Q. Luo, Y. Luo, A. M. Ma, E. C. Ma, J. M. Ma, H. S. Mao, Z. P. Mao, X. C. Meng, H. L. Ni, J. Nie, N. D. Qi, 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. J. Sun, Y. P. Tan, S. Q. Tang, G. L. Tong, F. Wang, L. S. Wang, L. Z. Wang, M. Wang, P. Wang, P. L. Wang, S. M. Wang, T. J. Wang, Y. Y. Wang, C. L. Wei, D. M. Xi, X. M. Xia, P. P. Xie, Y. G. Xie, W. J. Xiong, D. Z. Xu, R. S. Xu, Z. Q. Xu, S. T. Xue, J. Yan, W. G. Yan, C. M. Yang, C. Y. Yang, J. Yang, W. Yang, M. H. Ye, S. W. Ye, S. Z. Ye, C. S. Yu, C. X. Yu, Z. Q. Yu, Z. T. Yu, C. Z. Yuan, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. L. Zhang, J. Zhang, J. W. Zhang, L. Zhang, L. S. Zhang, S. Q. Zhang, X. Y. Zhang, Y. Zhang, Y. Y. Zhang, D. X. Zhao, H. W. Zhao, J. W. Zhao, M. Zhao, P. D. Zhao, W. R. Zhao, J. P. Zheng, L. S. Zheng, Z. P. Zheng, G. P. Zhou, H. S. Zhou, Li Zhou, X. F. Zhou, Y. H. Zhou, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, and B. A. Zhuang
Subjects: Physics, Particle physics, Glueball, Radiative transfer, General Physics and Astronomy
Abstract: The BES experiment at the Beijing electron-positron collider has observed the $\ensuremath{\xi}$(2230) signal in ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, ${K}^{+}{K}^{\ensuremath{-}}$, ${K}_{S}^{0}{K}_{S}^{0}$, and $p\overline{p}$ final states with $4.6\ensuremath{\sigma}$, $4.1\ensuremath{\sigma}$, $4.0\ensuremath{\sigma}$, and $3.8\ensuremath{\sigma}$ statistical significances, respectively. The new observations of two nonstrange decay modes of $\ensuremath{\xi}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and $p\overline{p}$ are important evidence for the glueball interpretation of the $\ensuremath{\xi}(2230)$.
Published: 1996
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27. Direct measurement of theDsbranching fraction to φπ

Author: Z. P. Zheng, C. C. Zhang, D. Paluselli, G. L. Tong, B. A. Zhuang, Xingzhu Cui, E. Torrence, H. Shen, J. C. Chen, Xuanhong Lou, R. Malchow, H. S. Mao, S. D. Gu, Q. Liu, J. Panetta, Y. P. Tan, S. M. Wang, S. M. Chen, B. S. Cheng, X. C. Meng, J. Standifird, A. J. S. Smith, A. Breakstone, Y. S. Zhu, Y. C. Zhu, J. Fang, L. S. Zheng, Jun-Bing Ma, J. Synodinos, R. B. Li, D. Q. Huang, J. W. Zhang, H. L. Ding, Z. Q. Xu, J. H. Gu, J. Quigley, P. Gratton, P. L. Wang, X. F. Zhou, J. Schultz, S. J. Chen, X. M. Xia, D. X. Zhao, B. Y. Zhang, G. Zioulas, Pihong Zhao, W. X. Zhao, Y. Y. Wang, X. L. Fan, D. P. Stoker, W. X. Gu, S. Q. Tang, W. Dunwoodie, W. H. Toki, W. G. Li, M. L. Gao, M. G. Zhao, W. J. Wisniewski, S. H. Kang, I. Blum, O. Bardon, E. Soderstrom, J. C. Li, M. Mandelkern, C. Z. Yuan, Q. J. Li, Wei Li, D. Z. Xu, Y. Jin, H. Y. Sheng, S. Whittaker, C. M. Yang, W. X. Gao, R. Cowan, J. G. Lu, L. J. Pan, F. A. Harris, L. Jones, H. C. Cui, Y. H. Zhou, Y. B. Chen, H. B. Lan, C. X. Yu, Jiang Changhui, H. M. Liu, R. G. Liu, G. P. Zhou, Y. F. Lai, R. S. Xu, H. Z. Shi, S. Q. Gao, N. D. Qi, R. K. Yamamoto, R. J. Wilson, H. F. Chen, W. F. Wang, B. Schmid, T. Hu, J. Y. Zhang, X. F. Song, Y. K. Que, Q. M. Zhu, P. Wang, P. F. Lang, F. Li, Li Zhou, Z. Z. Du, B. K. Kim, L. S. Wang, M. H. Ye, J. W. Zhao, Y. Y. Zhang, M. H. Kelsey, S. J. Sun, D. G. Hitlin, X. Q. Li, Y. Z. Huang, L. Z. Wang, M. Z. Wang, K. R. He, H. S. Sun, J. Oyang, X. Q. Hu, X. N. Li, H. L. Ni, C. Y. Yang, D. M. Xi, S. Z. Ye, J. Yan, M. Hatanaka, Y. F. Gu, J. H. Liu, W. G. Yan, X. R. Shi, Michael Schernau, W. Yang, M. He, D. L. Shen, J. Nie, Z. A. Liu, F. C. Porter, H. B. Yao, S. T. Xue, Y. Y. Shao, F. Sun, C. S. Gao, G. Y. Hu, Jinxing Zheng, Lei Zhang, J. Z. Bai, D. H. Zhang, G. P. Chen, Joseph Izen, T. J. Wang, W. D. Li, S. L. Olsen, C. S. Yu, G. Rong, P. P. Xie, E. Prabhakar, B. Lowery, A. J. Lankford, S. W. Han, P. Q. Li, A. M. Ma, H. S. Zhou, X. Y. Shen, Y. N. Guo, Y. L. Han, E. C. Ma, H. L. Zhang, Y. Q. Chen, Z. Q. Yu, S. Z. Lin, W. R. Zhao, Q. P. Jia, Y. Zhang, H. B. Hu, Y. B. Liu, S. Q. Zhang, Michael J. Fero, J. He, T. H. Burnett, F. Wang, and Z. P. Mao
Subjects: Nuclear physics, Physics, Particle physics, Pion, Pair production, Meson, law, Branching fraction, Electron–positron annihilation, Yield (chemistry), Pi, Collider, law.invention
Abstract: The Beijing Spectrometer (BES) Collaboration has observed exclusive pair production of D_s mesons at the Beijing Electron-Positron Collider (BEPC) at a center-of-mass energy of 4.03 GeV. The D_s mesons are detected in the φπ^+, K¯^(*0)K^+, and K¯^0K^+ decay modes; two fully reconstructed events yield the value (3.9_(-1.9-1.1)^(+5.1+1.8))% for the D_s branching fraction to φπ. This is the first direct, model-independent measurement of this quantity.
Published: 1995
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28. A measurement of decay widths

Author: H. S. Mao, Z. D. Cheng, W. H. Zhao, S. Q. Tang, B. S. Cheng, Y. P. Tan, S. M. Wang, S. D. Gu, Y. B. Liu, J. H. Gu, P. Wang, J. H. Liu, W. Yang, X. C. Meng, Pihong Zhao, W. X. Gu, H. Y. Sheng, H. L. Ding, T. J. Wang, Y. Z. Huang, J. Nie, C. X. Yu, S. H. Kang, H. Shen, C. Z. Yuan, Ya-Nan Guo, S. M. Chen, Y. C. Zhu, Y. Y. Shao, Wei Li, P. L. Wang, X. F. Zhou, Z. Q. Yu, S. T. Xue, C. S. Gao, H. P. Hu, N. D. Qi, Jinxing Zheng, L. J. Pan, R. S. Xu, Y. S. Zhu, G. Y. Hu, Z. A. Liu, Y. G. Xie, Y. K. Que, J. Y. Zhang, Q. Liu, Y. Q. Chen, X. Y. Shen, G. P. Zhou, X. X. Xie, Y. B. Chen, Q. M. Zhu, F. Li, H. L. Ni, M. Z. Wang, R. B. Li, L. S. Wang, Cunfeng Wei, Y. Y. Zhang, M. H. Ye, H. S. Sun, X. N. Li, K. R. He, S. W. Han, J. Z. Bai, P. F. Lang, Y. N. Guo, W. Z. Fang, D. X. Zhao, B. Y. Zhang, H. B. Lan, W. G. Li, J. W. Zhang, Y. L. Han, Y. Y. Wang, Jiang Changhui, S. Z. Ye, Z. Z. Du, H. M. Liu, D. Z. Xu, A. M. Ma, H. S. Zhou, Q. Y. Li, J. He, J. Fang, L. S. Zheng, X. Y. Zhang, R. G. Liu, L. P. Zhou, Z. P. Mao, P. P. Xie, D. H. Ma, P. Q. Li, M. G. Zhao, Y. Jin, S. Q. Luo, S. Q. Zhang, G. P. Chen, Xingzhu Cui, F. Sun, C. M. Yang, W. X. Gao, W. D. Li, S. Q. Gao, Z. J. Ke, X. L. Fan, Z. P. Zheng, J. W. Zhao, W. G. Yan, Lei Zhang, G. Rong, Bing Zhou, S. Z. Lin, W. R. Zhao, X. Q. Hu, D. M. Xi, J. Yan, Y. F. Gu, G. L. Tong, M. He, B. A. Zhuang, Y. Zhang, D. L. Shen, M. L. Gao, J. C. Li, S. J. Chen, Y. F. Lai, H. F. Chen, J. G. Lu, Y. H. Zhou, T. Hu, X. M. Xia, D. Q. Huang, C. C. Zhang, S. Jin, Z. Q. Xu, Jun-Bing Ma, H. C. Cui, H. Z. Shi, D. H. Zhang, C. S. Yu, X. F. Song, E. C. Ma, H. L. Zhang, L. Z. Wang, Q. M. Li, B. W. Shen, W. Y. Ding, and C. Y. Yang
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, Hadron, Detector, High Energy Physics::Experiment, Electron, Atomic physics, Resonance (particle physics)
Abstract: The cross sections for e+e− → hadrons, e+e−, μ+μ− have been measured in the vicinity of the J Ψ resonance using the BES detector operated at BEPC. The partial widths for J Ψ to hadrons, electrons, muons and the total width have been determined to be Γh = 74.1 ± 8.1 keV, Γe = 5.14 ± 0.39 keV, Γμ = 5.13 ± 0.52 keV, and Γ = 84.4 ± 8.9 keV, respectively.
Published: 1995
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29. KID-KLOE integrated dataflow

Author: M. Adinolfi, A. Aloisio, F. Ambrosino, A. Andryakov, A. Antonelli, M. Antonelli, F. Anulli, C. Bacci, G. Barbiellini, F. Bellini, G. Bencivenni, S. Bertolucci, C. Bini, C. Bloise, V. Bocci, F. Bossi, P. Branchini, S. A. Bulychjov, G. Cabibbo, A. Calcaterra, R. Caloi, P. Campana, G. Capon, G. Carboni, A. Cardini, M. Casarsa, G. Cataldi, F. Ceradini, F. Cervelli, F. Cevenini, G. Chiefari, P. Ciambrone, S. Conetti, S. Conticelli, E. D. Lucia, G. D. Robertis, R. D. Sangro, P. D. Simone, G. D. Zorzi, S. Dell'Agnello, A. Denig, A. D. Domenico, S. D. Falco, A. Doria, E. Drago, O. Erriquez, A. Farilla, G. Ferlici, A. Ferrari, M. L. Ferrer, G. Finocchiaro, C. Forti, A. Franceschi, P. Franzini, M. L. Gao, C. Gatti, P. Gauzzi, S. Giovannella, V. Golovatyuk, F. Grancagnolo, W. Grandegger, E. Graziani, P. Guarnaccia, H. G. Han, S. W. Han, X. Huang, M. Incagli, L. Ingrosso, Y. Y. Jiang, W. Kim, W. Kluge, V. Kulikov, F. Lacava, G. Lanfranchi, J. Lee Franzini, T. Lomtadze, C. Luisi, C. S. Mao, M. Martemianov, A. Martini, M. Matsyuk, W. Mei, L. Merola, R. Messi, S. Miscetti, A. Moalem, S. Moccia, M. Moulson, S. Mueller, F. Murtas, M. Napolitano, A. Nedosekin, L. Pacciani, P. Pages, M. Palutan, L. Paoluzi, E. Pasqualucci, L. Passalacqua, M. Passaseo, A. Passeri, V. Patera, E. Petrolo, G. Petrucci, D. Picca, G. Pirozzi, C. Pistillo, M. Pollack, L. Pontecorvo, F. Ruggieri, P. Santangelo, E. Santovetti, G. Saracino, R. D. Schamberger, C. Schwick, B. Sciascia, A. Sciubba, F. Scuri, I. Sfiligoi, J. Shan, T. Spadaro, E. Spiriti, C. Stanescu, G. L. Tong, L. Tortora, E. Valente, P. Valente, B. Valeriani, G. Venanzoni, S. Veneziano, Y. Wu, Y. G. Xie, P. P. Zhao, Y. Zhou, GORINI, Edoardo, PANAREO, Marco, PRIMAVERA, Margherita, SPAGNOLO, Stefania Antonia, M., Adinolfi, A., Aloisio, F., Ambrosino, A., Andryakov, A., Antonelli, M., Antonelli, F., Anulli, C., Bacci, G., Barbiellini, F., Bellini, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, P., Branchini, S. A., Bulychjov, G., Cabibbo, A., Calcaterra, R., Caloi, P., Campana, G., Capon, G., Carboni, A., Cardini, M., Casarsa, G., Cataldi, F., Ceradini, F., Cervelli, F., Cevenini, G., Chiefari, P., Ciambrone, S., Conetti, S., Conticelli, E. D., Lucia, G. D., Roberti, R. D., Sangro, P. D., Simone, G. D., Zorzi, S., Dell'Agnello, A., Denig, A. D., Domenico, S. D., Falco, A., Doria, E., Drago, O., Erriquez, A., Farilla, G., Ferlici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, A., Franceschi, P., Franzini, M. L., Gao, C., Gatti, P., Gauzzi, S., Giovannella, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, W., Grandegger, E., Graziani, P., Guarnaccia, H. G., Han, S. W., Han, X., Huang, M., Incagli, L., Ingrosso, Y. Y., Jiang, W., Kim, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, T., Lomtadze, C., Luisi, C. S., Mao, M., Martemianov, A., Martini, M., Matsyuk, W., Mei, L., Merola, R., Messi, S., Miscetti, A., Moalem, S., Moccia, M., Moulson, S., Mueller, F., Murta, M., Napolitano, A., Nedosekin, Panareo, Marco, L., Pacciani, P., Page, M., Palutan, L., Paoluzi, E., Pasqualucci, L., Passalacqua, M., Passaseo, A., Passeri, V., Patera, E., Petrolo, G., Petrucci, D., Picca, G., Pirozzi, C., Pistillo, M., Pollack, L., Pontecorvo, Primavera, Margherita, F., Ruggieri, P., Santangelo, E., Santovetti, G., Saracino, R. D., Schamberger, C., Schwick, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, J., Shan, T., Spadaro, Spagnolo, Stefania Antonia, E., Spiriti, C., Stanescu, G. L., Tong, L., Tortora, E., Valente, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Y., Wu, Y. G., Xie, P. P., Zhao, and Y., Zhou
Abstract: KLOE is acquiring and analyzing hundreds of terabytes of data, stored as tens of millions of files. In order to simplify the access to these files, a URI-based mechanism has been put in place. The KID package is an implementation of that mechanism and is presented in this paper.
Published: 2001

30. The BES detector

Author: R. G. Liu, Z. Z. Du, Wei Li, Z.Q. Chen, Xi Wang, S. M. Wang, Junguang Lu, S. W. Han, R. S. Xu, H. S. Zhou, Y. K. Que, Li Zhou, B.Z. Dong, J. Shen, G. Rong, H. L. Ding, C. H. Jiang, R. B. Li, Yao Zhang, C. Q. Feng, Jia Li, X. M. Xia, X. Liu, Jin Li, C.S. Yu, Z.Q. Zhao, Z.D. Nie, Min Zhou, Lei Li, Hongming Zhang, G.Y. Wang, H. C. Cui, C. L. Wei, H. Z. Shi, D. X. Zhao, B. Y. Zhang, Y. Y. Wang, Y.H. Qu, Z.Y. Liu, J.G. Wang, Z. P. Zheng, B. A. Zhuang, W.H. Tian, G.S. Zhu, D. H. Ma, Jing Zhou, Lin Zhou, X.J. Hou, Zhen-An Liu, L. J. Pan, Q. P. Jia, Ming-Han Ye, Xuan Yang, S. D. Gu, G. P. Zhou, X. C. Meng, H. S. Mao, H. L. Ni, J. Xiao, Y. Q. Chen, X. F. Song, G.P. Zhong, Guo-Ming Chen, S. Z. Lin, W. R. Zhao, Y. N. Gao, Y.Z. Guan, T. J. Wang, Ya-Nan Guo, W.D. Lu, L. S. Zheng, S. Q. Tang, C.Y. Zhang, Q. M. Li, M. L. Gao, P. L. Wang, J.S. Hu, Hui Li, C.G. Lu, B. W. Shen, Yue-Hua Zhou, X.R. Yang, J. Z. Bai, D. M. Xi, Pihong Zhao, M. Zheng, P. P. Zhao, Y. S. Zhu, W. X. Gu, J. Yan, W. Liu, Y. H. Zhou, Z.Y. Lu, Y. F. Lai, Shao-Min Chen, F.C. Lin, W.P. Niu, E. C. Ma, Dehong Zhang, X. Z. Cui, W. G. Yan, C. M. Yang, S.P. Yan, W. X. Gao, S.Q. Li, Y. Z. Huang, H. L. Zhang, S.G. Zhu, Z.Z. Wei, Chunmei Zhang, Q. Ju, M. Wang, H. Y. Sheng, L. S. Wang, Y. Y. Zhang, Z. Q. Yu, Shun-Qi Zhang, M. He, D. L. Shen, J.W. Wu, X. Du, W.S. Zheng, N. D. Qi, Chen-Hua Yu, Lei Zhang, K. R. He, J. Zhao, Willis Lin, D. Q. Huang, T.Z. Ruan, M. G. Zhao, J.J. Qian, Ping Wang, C.Z. Yang, S. T. Xue, P. F. Lang, G. Y. Hu, S. Q. Gao, J. W. Zhang, J.P. Sheng, Y.W. Deng, Zirui Wang, Siguang Wang, F.K. Tang, Qian Liu, Zhe Wang, S.Q. Wu, B.C. Xuan, J. M. Ma, Q. Bian, Y. L. Han, L.J. Chen, Yue-Yuan Zhang, X.S. Dong, Xiao-Xi Xie, Jianping Zheng, Lu Wang, W. Hao, C. Y. Yang, Z.D. Wu, F. Y. Li, Geoffrey Zhang, S.H. Wu, Z. Feng, Y. N. Guo, J.Y. Wang, P. P. Xie, G.N. Liang, J.W. Hu, P. Q. Li, J. He, W. G. Li, J.G. Xu, W.M. Wu, F. Wang, Y. C. Zhu, Z. P. Mao, J. Nie, Z.X. Li, Chang-Chun Zhang, Y. Y. Shao, C. S. Gao, Z.S. Fu, Y.K. Chi, H.F. Guo, Q. M. Zhu, S.S. Deng, H. S. Sun, Z. Q. Xu, Z. G. Zhao, Xin Wu, and D. Li
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Spectrometer, Physics::Instrumentation and Detectors, Electron–positron annihilation, Detector, Particle identification, Charged particle, law.invention, Nuclear physics, Positron, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Center of mass, Collider, Instrumentation
Abstract: The Beijing Spectrometer (BES) is a general purpose solenoidal detector at the Beijing Electron Positron Collider (BEPC). It is designed to study exclusive final states in e + e − annihilations at the center of mass energy from 3.0 to 5.6 GeV. This requires large solid angle coverage combined with good charged particle momentum resolution, good particle identification and high photon detection efficiency at low energies. In this paper we describe the construction and the performance of BES detector.
Published: 1994
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31. Novel DAQ and trigger Methods for the KLOE experiment

Author: M. ADINOLFI, A. ALOISIO, F. AMBROSINO, A. ANDRYAKOV, A. ANTONELLI, M. ANTONELLI, F. ANULLI, C. BACCI, A. BANKAMP, G. BARBIELLINI, F. BELLININ, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, P. BRANCHININ, S. A. BULYCHJOV, G. CABIBBO, A. CALCATERRA, R. CALOI, P. CAMPANA, G. CAPON, G. CARBONIM, A. CARDINI, M. CASARSA, G. CATALDI, F. CERADININ, F. CERVELLI, F. CEVENINI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, G. DE ROBERTIS, R. DE SANGRO, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, A. DORIA, E. DRAGO, O. ERRIQUEZ, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, C. FORTI, A. FRANCESCHI, P. FRANZINI, M. L. GAO, C. GATTI, P. GAUZZI, S. GIOVANNELLA, V. GOLOVATYUK, F. GRANCAGNOLO, W. GRANDEGGER, E. GRAZIANIN, P. GUARNACCIA, U. VON HAGEL, H. G. HAN, S. W. HAN, X. HUANG, M. INCAGLI, L. INGROSSO, Y. Y. JIANG, W. KIM, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, T. LOMTADZE, C. LUISI, C. S. MAO, M. MARTEMIANOV, A. MARTINI, M. MATSYUK, W. MEI, L. MEROLA, R. MESSIM, S. MISCETTI, A. MOALEM, S. MOCCIA, M. MOULSON, S. MUELLER, F. MURTAS, M. NAPOLITANO, A. NEDOSEKIN, L. PACCIANI, P. PAGES, M. PALUTAN, L. PAOLUZI, E. PASQUALUCCI, L. PASSALACQUA, M. PASSASEO, A. PASSERIN, V. PATERA, E. PETROLO, G. PETRUCCI, D. PICCA, G. PIROZZI, C. PISTILLO, M. POLLACK, L. PONTECORVO, M. PRIMAVERA, F. RUGGIERI, P. SANTANGELO, E. SANTOVETTI, E. SARACINO, R. D. SCHAMBERGER, C. SCHWICK, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, J. SHAN, P. SILANO, T. SPADARO, E. SPIRITI, C. STANESCU, G. L. TONG, L. TORTORA, E. VALENTE, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, Y. WU, Y. G. XIE, P. P. ZHAO, Y. ZHOU, Y. ZHOUC, ELIA, Valerio, GORINI, Edoardo, PANAREO, Marco, SPAGNOLO, Stefania Antonia, M., Adinolfi, A., Aloisio, F., Ambrosino, A., Andryakov, A., Antonelli, M., Antonelli, F., Anulli, C., Bacci, A., Bankamp, G., Barbiellini, F., Bellinin, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, P., Branchinin, S. A., Bulychjov, G., Cabibbo, A., Calcaterra, R., Caloi, P., Campana, G., Capon, G., Carbonim, A., Cardini, M., Casarsa, G., Cataldi, F., Ceradinin, F., Cervelli, F., Cevenini, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, G., DE ROBERTIS, R., DE SANGRO, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, A., Doria, E., Drago, Elia, Valerio, O., Erriquez, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, A., Franceschi, P., Franzini, M. L., Gao, C., Gatti, P., Gauzzi, S., Giovannella, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, W., Grandegger, E., Grazianin, P., Guarnaccia, U., VON HAGEL, H. G., Han, S. W., Han, X., Huang, M., Incagli, L., Ingrosso, Y. Y., Jiang, W., Kim, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, T., Lomtadze, C., Luisi, C. S., Mao, M., Martemianov, A., Martini, M., Matsyuk, W., Mei, L., Merola, R., Messim, S., Miscetti, A., Moalem, S., Moccia, M., Moulson, S., Mueller, F., Murta, M., Napolitano, A., Nedosekin, Panareo, Marco, L., Pacciani, P., Page, M., Palutan, L., Paoluzi, E., Pasqualucci, L., Passalacqua, M., Passaseo, A., Passerin, V., Patera, E., Petrolo, G., Petrucci, D., Picca, G., Pirozzi, C., Pistillo, M., Pollack, L., Pontecorvo, M., Primavera, F., Ruggieri, P., Santangelo, E., Santovetti, E., Saracino, R. D., Schamberger, C., Schwick, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, J., Shan, P., Silano, T., Spadaro, Spagnolo, Stefania Antonia, E., Spiriti, C., Stanescu, G. L., Tong, L., Tortora, E., Valente, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Y., Wu, Y. G., Xie, P. P., Zhao, Y., Zhou, and Y., Zhouc
Abstract: KLOE, a new state of the art detector recently commissioned for physics operation at DAFNE, has many innovative interesting features, especially in the DAQ and Trigger areas. Custom electronics assert a trigger in a 2 microseconds decision time and distributes it to the FEE with a 50 ps time resolution. Data are read out using 10 front-end data acquisition chains and sent to a farm of online servers through a FDDI Gigaswitch. This design of the KLOE DAQ system allows us to manage an input data rate as high as 50 Mbyte/s, and is completely scalable by extending the number of computers connected to the switch
Published: 2000

32. First results from phi→KL KS decay with the KLOE detector

Author: M. ADINOLFI, A. ALOISIO, F. AMBROSINO, A. ANDRYAKOV, A. ANTONELLI, M. ANTONELLI, F. ANULLI, C. BACCI, A. BANKAMP, G. BARBIELLINI, F. BELLININ, G. BENCIVENNI, S. BERTOLUCCI, C. BINI, C. BLOISE, V. BOCCI, F. BOSSI, P. BRANCHININ, S. A. BULYCHJOV, G. CABIBBO, A. CALCATERRA, R. CALOI, P. CAMPANA, G. CAPON, G. CARBONIM, A. CARDINI, M. CASARSA, G. CATALDI, F. CERADININ, F. CERVELLI, F. CEVENINI, G. CHIEFARI, P. CIAMBRONE, S. CONETTI, E. DE LUCIA, G. DE ROBERTIS, R. DE SANGRO, P. DE SIMONE, G. DE ZORZI, S. DELL'AGNELLO, A. DENIG, A. DI DOMENICO, C. DI DONATO, S. DI FALCO, A. DORIA, E. DRAGO, V. ELIA, O. ERRIQUEZ, G. FELICI, A. FERRARI, M. L. FERRER, G. FINOCCHIARO, C. FORTI, A. FRANCESCHI, P. FRANZINI, M. L. GAO, C. GATTI, P. GAUZZI, S. GIOVANNELLA, V. GOLOVATYUK, GORINI, Edoardo, F. GRANCAGNOLO, W. GRANDEGGER, E. GRAZIANIN, P. GUARNACCIA, U. VON HAGEL, H. G. HAN, S. W. HAN, X. HUANG, M. INCAGLI, L. INGROSSO, Y. Y. JIANG, W. KIM, W. KLUGE, V. KULIKOV, F. LACAVA, G. LANFRANCHI, J. LEE FRANZINI, T. LOMTADZE, C. LUISI, C. S. MAO, M. MARTEMIANOV, A. MARTINI, M. MATSYUK, W. MEI, L. MEROLA, R. MESSIM, S. MISCETTI, A. MOALEM, S. MOCCIA, M. MOULSON, S. MUELLER, F. MURTAS, M. NAPOLITANO, A. NEDOSEKIN, L. PACCIANI, P. PAGES, M. PALUTAN, L. PAOLUZI, E. PASQUALUCCI, L. PASSALACQUA, M. PASSASEO, A. PASSERIN, V. PATERA, E. PETROLO, G. PETRUCCI, D. PICCA, G. PIROZZI, C. PISTILLO, M. POLLACK, L. PONTECORVO, M. PRIMAVERA, F. RUGGIERI, P. SANTANGELO, E. SANTOVETTI, E. SARACINO, R. D. SCHAMBERGER, C. SCHWICK, B. SCIASCIA, A. SCIUBBA, F. SCURI, I. SFILIGOI, J. SHAN, P. SILANO, T. SPADARO, SPAGNOLO, Stefania Antonia, E. SPIRITI, C. STANESCU, G. L. TONG, L. TORTORA, E. VALENTE, P. VALENTE, B. VALERIANI, G. VENANZONI, S. VENEZIANO, Y. WU, Y. G. XIE, P. P. ZHAO, Y. ZHOU, Y. ZHOUC, PANAREO, Marco, M., Adinolfi, A., Aloisio, F., Ambrosino, A., Andryakov, A., Antonelli, M., Antonelli, F., Anulli, C., Bacci, A., Bankamp, G., Barbiellini, F., Bellinin, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, P., Branchinin, S. A., Bulychjov, G., Cabibbo, A., Calcaterra, R., Caloi, P., Campana, G., Capon, G., Carbonim, A., Cardini, M., Casarsa, G., Cataldi, F., Ceradinin, F., Cervelli, F., Cevenini, G., Chiefari, P., Ciambrone, S., Conetti, E., DE LUCIA, G., DE ROBERTIS, R., DE SANGRO, P., DE SIMONE, G., DE ZORZI, S., Dell'Agnello, A., Denig, A., DI DOMENICO, C., DI DONATO, S., DI FALCO, A., Doria, E., Drago, V., Elia, O., Erriquez, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, A., Franceschi, P., Franzini, M. L., Gao, C., Gatti, P., Gauzzi, S., Giovannella, V., Golovatyuk, Gorini, Edoardo, F., Grancagnolo, W., Grandegger, E., Grazianin, P., Guarnaccia, U., VON HAGEL, H. G., Han, S. W., Han, X., Huang, M., Incagli, L., Ingrosso, Y. Y., Jiang, W., Kim, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, T., Lomtadze, C., Luisi, C. S., Mao, M., Martemianov, A., Martini, M., Matsyuk, W., Mei, L., Merola, R., Messim, S., Miscetti, A., Moalem, S., Moccia, M., Moulson, S., Mueller, F., Murta, M., Napolitano, A., Nedosekin, Panareo, Marco, L., Pacciani, P., Page, M., Palutan, L., Paoluzi, E., Pasqualucci, L., Passalacqua, M., Passaseo, A., Passerin, V., Patera, E., Petrolo, G., Petrucci, D., Picca, G., Pirozzi, C., Pistillo, M., Pollack, L., Pontecorvo, M., Primavera, F., Ruggieri, P., Santangelo, E., Santovetti, E., Saracino, R. D., Schamberger, C., Schwick, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, J., Shan, P., Silano, T., Spadaro, Spagnolo, Stefania Antonia, E., Spiriti, C., Stanescu, G. L., Tong, L., Tortora, E., Valente, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, Y., Wu, Y. G., Xie, P. P., Zhao, Y., Zhou, and Y., Zhouc
Abstract: KLOE-MEMO-00-214
Published: 2000

33. Measurement of the branching fraction ofJ/ψ→π+π−π0

Author: F. Lu, Y. C. Zhu, Z. Z. Du, P. L. Wang, Meng Wang, B.S. Zou, Z. X. Liu, H. S. Chen, M. H. Ye, F. A. Harris, X. S. Jiang, Feng Shi, Bo Xin, N. Wu, Z. P. Zhang, H. Y. Sheng, N. D. Qi, Y. Jin, C. Z. Yuan, S. D. Yang, H. Y. Zhang, G. S. Huang, L. Y. Dong, S. D. Gu, Q. Yue, Zhe Wang, L. L. Ma, Y. B. Zhao, Fang Liu, J. Y. Zhang, W. D. Li, X. J. Zhao, Qiyang Zhang, F. Li, Z. J. Guo, J. G. Lu, F. C. Ma, Guangzhao Zhou, Z. A. Liu, Jiming Yang, Y. Ban, J. Z. Bai, Y. K. Heng, Y. Y. Zhang, Z. G. Zhao, J. B. Zhao, X. L. Luo, Xunchao Zhang, T. Hu, P. Wang, J. F. Qiu, D. X. Zhao, B. Y. Zhang, K. L. He, S. W. Han, J. Chen, Hangxu Li, J. M. Zhang, Jiemin Li, XZ（蔡翔舟） Cai, L. W. Song, L. Huang, X. L. Li, X. C. Meng, G. F. Xu, L. S. Wang, S. Jin, Qingying Jia, P. P. Zhao, X. Y. Shen, M. L. Chen, Z. J. Sun, Z. D. Nie, R. Y. Li, Xingzhu Cui, Yingchun Zhu, Chun-Hua Jiang, Zheng Wang, J. W. Zhao, S. L. Zang, H. L. Dai, Jun Chen, Zujian Wang, Cunfeng Wei, Ning Zhou, J. F. Chang, Hongbo Liao, Lei Zhang, Yudan Wang, S. S. Sun, Yiyun Zhang, J. C. Li, J. C. Chen, G. W. Yu, J. W. Zhang, M. L. Gao, Z. Y. Yi, Q. J. Li, G. R. Lu, Y. Zeng, S. M. Li, Y. X. Ye, Fan Yang, Y. Q. Guo, X. Tang, J. Fang, L. S. Zheng, Y. J. Zhang, S. T. Xue, R. B. Li, G. Rong, Z. A. Zhu, L. H. Yi, Y. Yuan, Y. S. Zhu, Y. B. Chen, Lianyou Shan, Z. Y. Zhang, X. M. Xia, Y. F. Lai, H. F. Chen, W. F. Wang, Bing Zhou, Huirun Chen, X. Q. Li, J. Nie, Han-Qing Zheng, X. C. Zhong, L. P. Fu, Y. X. Yang, J. Z. Wang, H. X. Yang, H.S. Xu, W. B. Yan, C. L. Luo, H. Y. Fu, S. L. Olsen, H. M. Hu, S. Q. Zhang, Nongjian Tao, C. C. Zhang, Z. Y. Wang, Y. S. Dai, C. S. Gao, Jinxing Zheng, J. G. Bian, Miao He, J. J. He, B. X. Zhang, Z. P. Zheng, H. Qin, D. L. Shen, Q. M. Zhu, L. P. Zhou, C. X. Liu, S. Z. Wang, Y. Z. Sun, X. H. Mo, Y. C. Xu, Y. F. Liang, D. P. Jin, Z. P. Mao, Xiru Huang, M. Z. Wang, G. L. Tong, J. P. Liu, B. A. Zhuang, H. S. Sun, Jun-Bing Ma, Haiping Peng, X. Y. Ma, X. Y. Zhang, W. R. Zhao, F. Liu, W. X. Gong, M. Y. Gong, D. H. Zhang, R. G. Liu, Y. N. Gao, J. B. Liu, Z. Y. Ren, C. S. Yu, Y. M. Wu, X. Shi, W. G. Li, S. S. Fang, X. H. He, D. Y. Wang, Yang Tian, C. D. Qian, H. M. Liu, S. X. Du, M. L. Yan, Juan Zhang, Y. N. Guo, S. P. Chi, K. J. Zhu, J. M. Yuan, Y. P. Chu, X. B. Ji, Y. B. Liu, Shang Lunlin, G. Li, C. D. Fu, Xintong Li, Z. Y. Deng, and X. X. Xie
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction
Abstract: Using 58 million $J/\ensuremath{\psi}$ and 14 million $\ensuremath{\psi}(2S)$ decays obtained by the BES II experiment, the branching fraction of $J/\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\psi}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ is determined. The result is $(2.10\ifmmode\pm\else\textpm\fi{}0.12)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}2},$ which is significantly higher than previous measurements.
Published: 2004
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34. ψ(2S)decays intoJ/ψplus two photons

Author: Z. G. Zhao, B.S. Zou, X. Q. Li, Z. P. Zheng, Qiyang Zhang, L. Huang, S. Z. Wang, Xiru Huang, Feng Liu, R. B. Li, G. L. Tong, B. A. Zhuang, Jiming Yang, Z. J. Sun, Y. Yuan, Y. S. Zhu, L. H. Yi, P. Wang, W. R. Zhao, H. S. Chen, L. W. Song, F. Li, F. C. Ma, J. W. Zhao, J. G. Lu, F. Liu, B. X. Zhang, J. Chen, G. W. Yu, S. S. Fang, J. C. Li, G. F. Xu, H. Qin, W. B. Yan, M. L. Chen, Feng Shi, S. Jin, T. Hu, XZ（蔡翔舟） Cai, Y. B. Liu, Y. N. Gao, H. Y. Zhang, X. Tang, Chun-Hua Jiang, J. F. Qiu, X. L. Li, G. S. Huang, H. Y. Sheng, R. Y. Li, Shang Lunlin, N. D. Qi, Zujian Wang, Yingchun Zhu, L. L. Ma, Q. J. Li, Z. D. Nie, Y. Jin, J. Nie, G. Li, Lianyou Shan, J. Y. Zhang, Y. J. Zhang, Z. Y. Yi, Z. A. Liu, X. C. Zhong, Cunfeng Wei, Ning Zhou, Fang Liu, C. D. Fu, S. T. Xue, F. Lu, Miao He, Guangzhao Zhou, L. P. Fu, C. L. Luo, Y. Ban, Y. B. Zhao, J. W. Zhang, J. Z. Wang, X. Y. Zhang, Y. K. Heng, Z. Y. Deng, Y. Y. Zhang, M. Y. Gong, X. J. Zhao, Nongjian Tao, C. C. Zhang, Xunchao Zhang, D. X. Zhao, B. Y. Zhang, Hangxu Li, R. G. Liu, Y. X. Yang, Y. S. Dai, Jiemin Li, J. B. Zhao, C. S. Gao, L. P. Zhou, Y. F. Liang, D. P. Jin, J. B. Liu, Y. C. Zhu, S. L. Olsen, Xingzhu Cui, Jinxing Zheng, M. H. Ye, Y. M. Wu, D. H. Zhang, Z. J. Guo, P. L. Wang, Meng Wang, C. S. Yu, Z. Y. Wang, Z. P. Mao, S. P. Chi, S. S. Sun, J. Z. Bai, L. S. Wang, S. Q. Zhang, X. Y. Shen, Jun-Bing Ma, Yang Tian, X. Y. Ma, W. X. Gong, K. J. Zhu, J. M. Yuan, Z. Z. Du, F. A. Harris, Q. M. Zhu, X. H. He, Y. Z. Sun, L. Y. Dong, Z. P. Zhang, K. L. He, S. X. Du, X. M. Xia, Z. X. Liu, Yudan Wang, S. W. Han, Zheng Wang, M. L. Yan, Y. C. Xu, J. M. Zhang, X. Shi, Y. P. Chu, C. Z. Yuan, G. R. Lu, M. Z. Wang, X. B. Ji, Zhe Wang, S. L. Zang, Juan Zhang, Z. A. Zhu, H. S. Sun, Y. N. Guo, J. C. Chen, Haiping Peng, Huirun Chen, H. Y. Fu, J. Fang, S. D. Yang, L. S. Zheng, S. M. Li, Fan Yang, X. H. Mo, H. L. Dai, D. L. Shen, C. X. Liu, X. L. Luo, Bo Xin, W. D. Li, J. J. He, Xintong Li, X. X. Xie, M. L. Gao, Y. Zeng, Y. Q. Guo, Y. B. Chen, Y. F. Lai, H. F. Chen, W. F. Wang, N. Wu, J. F. Chang, Hongbo Liao, Yiyun Zhang, Y. X. Ye, X. S. Jiang, Z. Y. Zhang, Han-Qing Zheng, H. M. Hu, H. X. Yang, H.S. Xu, S. D. Gu, Q. Yue, J. P. Liu, G. S. Varner, Qingying Jia, Jun Chen, Z. Y. Ren, W. G. Li, D. Y. Wang, H. M. Liu, Bing Zhou, C. D. Qian, J. G. Bian, P. P. Zhao, Lei Zhang, G. Rong, and X. C. Meng
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Photon, Electron–positron annihilation
Published: 2004
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35. Search for the pentaquark state inψ(2S)andJ/ψdecays toKS0pK−n̄andKS0p¯K+n

Author: Feng Shi, Xingzhu Cui, M. H. Ye, Guangzhao Zhou, Zheng Wang, N. Wu, L. L. Ma, Y. X. Yang, Yang Tian, S. S. Sun, Z. A. Liu, B. X. Zhang, J. B. Zhao, X. Y. Shen, Y. Ban, L. Y. Dong, Y. P. Chu, X. B. Ji, S. Q. Zhang, H. S. Chen, S. X. Du, M. L. Yan, Yudan Wang, S. P. Chi, G. R. Lu, K. J. Zhu, J. M. Yuan, J. C. Chen, Y. Z. Sun, J. Z. Bai, Z. Y. Zhang, H. X. Yang, H.S. Xu, Jun-Bing Ma, Shang Lunlin, G. Li, J. C. Li, Z. A. Zhu, Fang Liu, Y. B. Zhao, Y. C. Zhu, X. J. Zhao, H. Y. Sheng, P. L. Wang, X. C. Meng, X. Y. Ma, Jiming Yang, Meng Wang, Han-Qing Zheng, S. L. Zang, J. Fang, N. D. Qi, Qiyang Zhang, C. D. Fu, Z. Y. Deng, Z. J. Guo, Juan Zhang, Yingchun Zhu, H. M. Hu, Y. Jin, W. X. Gong, D. X. Zhao, J. P. Liu, B. Y. Zhang, Hangxu Li, Jiemin Li, Z. G. Zhao, Q. J. Li, Y. N. Guo, S. Z. Wang, Z. Z. Du, J. W. Zhao, F. A. Harris, S. D. Yang, S. D. Gu, Z. Y. Yi, X. Tang, L. Huang, Q. Yue, Z. X. Liu, X. Y. Zhang, P. Wang, G. W. Yu, Z. P. Zhang, Z. J. Sun, X. Shi, Z. P. Zheng, R. G. Liu, F. Li, S. M. Li, Fan Yang, F. C. Ma, Y. M. Wu, J. G. Lu, Z. Y. Ren, J. B. Liu, L. P. Fu, G. S. Varner, Qingying Jia, C. L. Luo, Nongjian Tao, T. Hu, Huirun Chen, Xiru Huang, C. C. Zhang, G. L. Tong, Bing Zhou, M. Y. Gong, XZ（蔡翔舟） Cai, X. L. Li, H. L. Dai, Jun Chen, J. F. Qiu, B. A. Zhuang, W. B. Yan, X. H. Mo, Lianyou Shan, M. L. Gao, Y. Zeng, L. S. Wang, F. Lu, W. R. Zhao, R. Y. Li, Y. Yuan, Y. S. Zhu, F. Liu, X. C. Zhong, Y. Q. Guo, Q. M. Zhu, S. S. Fang, K. L. He, Bo Xin, Y. B. Chen, S. W. Han, Y. C. Xu, J. M. Zhang, Y. N. Gao, Y. B. Liu, B.S. Zou, Y. F. Lai, H. F. Chen, M. Z. Wang, Cunfeng Wei, W. D. Li, Ning Zhou, W. F. Wang, H. S. Sun, Haiping Peng, J. W. Zhang, Miao He, X. L. Luo, L. P. Zhou, Z. P. Mao, W. G. Li, J. Nie, X. Q. Li, R. B. Li, D. Y. Wang, J. Chen, C. Z. Yuan, L. H. Yi, Zhe Wang, H. M. Liu, Y. S. Dai, X. S. Jiang, C. S. Gao, H. Qin, Jinxing Zheng, G. F. Xu, Chun-Hua Jiang, J. J. He, S. Jin, Zujian Wang, Xintong Li, X. X. Xie, J. F. Chang, Hongbo Liao, Yiyun Zhang, Y. X. Ye, D. L. Shen, C. X. Liu, X. M. Xia, H. Y. Fu, S. T. Xue, S. L. Olsen, Z. Y. Wang, L. W. Song, M. L. Chen, Y. J. Zhang, L. S. Zheng, Xunchao Zhang, H. Y. Zhang, G. S. Huang, J. Y. Zhang, J. Z. Wang, Y. F. Liang, D. P. Jin, Y. K. Heng, Y. Y. Zhang, J. G. Bian, D. H. Zhang, C. S. Yu, Z. D. Nie, X. H. He, C. D. Qian, P. P. Zhao, Lei Zhang, and G. Rong
Subjects: Physics, Combinatorics, Nuclear and High Energy Physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Order (ring theory), High Energy Physics::Experiment, Production (computer science), State (functional analysis), Atomic physics, Pentaquark
Abstract: Results are presented on $\ensuremath{\psi}(2S)$ and $J/\ensuremath{\psi}$ hadronic decays to ${K}_{S}^{0}{\mathrm{pK}}^{\ensuremath{-}}\mathrm{n\ifmmode \bar{}\else \={}\fi{}}$ and ${K}_{S}^{0}\overline{p}{K}^{+}n$ final states from data samples of 14 million $\ensuremath{\psi}(2S)$ and 58 million $J/\ensuremath{\psi}$ events accumulated at the BES II detector. No $\ensuremath{\Theta}(1540)$ signal, the pentaquark candidate, is observed, and upper limits are set for $\mathcal{B}(\ensuremath{\psi}(2S)\ensuremath{\rightarrow}\ensuremath{\Theta}\overline{\ensuremath{\Theta}}\ensuremath{\rightarrow}{K}_{S}^{0}{\mathrm{pK}}^{\ensuremath{-}}\mathrm{n\ifmmode \bar{}\else \={}\fi{}}{+K}_{S}^{0}\overline{p}{K}^{+}n)l0.84\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ and $\mathcal{B}(J/\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\psi}}\ensuremath{\Theta}\overline{\ensuremath{\Theta}}\ensuremath{\rightarrow}{K}_{S}^{0}{\mathrm{pK}}^{\ensuremath{-}}\mathrm{n\ifmmode \bar{}\else \={}\fi{}}{+K}_{S}^{0}\overline{p}{K}^{+}n)l1.1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ at the 90% confidence level. For single $\ensuremath{\Theta}(1540)$ production, the upper limits determined by our analysis are also on the order of ${10}^{\ensuremath{-}5}$ in both $\ensuremath{\psi}(2S)$ and $J/\ensuremath{\psi}$ decays.
Published: 2004
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36. Determination ofB(χcJ→pp¯)inψ(2S)decays

Author: Xingzhu Cui, L. P. Fu, Yang Tian, S. X. Du, M. L. Yan, X. Tang, S. L. Zang, C. L. Luo, H. X. Yang, H.S. Xu, X. C. Meng, S. T. Xue, M. Y. Gong, Qiyang Zhang, Y. Jin, Juan Zhang, F. Li, Y. N. Guo, S. S. Sun, Nongjian Tao, C. C. Zhang, Yingchun Zhu, B.S. Zou, Jun-Bing Ma, Xunchao Zhang, X. Y. Ma, S. Z. Wang, Z. Y. Zhang, M. L. Gao, P. Wang, W. X. Gong, F. C. Ma, Z. Y. Yi, J. W. Zhao, Han-Qing Zheng, Z. J. Guo, Y. Zeng, C. D. Qian, Fang Liu, G. W. Yu, J. P. Liu, S. D. Yang, S. L. Olsen, S. P. Chi, J. C. Li, D. X. Zhao, B. Y. Zhang, Hangxu Li, Y. Q. Guo, X. Shi, H. M. Hu, Jiemin Li, Z. Y. Wang, Z. D. Nie, Y. B. Zhao, L. S. Wang, Y. B. Chen, S. S. Fang, H. S. Chen, Y. M. Wu, J. F. Qiu, X. J. Zhao, X. M. Xia, X. S. Jiang, F. Lu, W. B. Yan, Y. F. Lai, S. D. Gu, J. G. Lu, Q. Yue, Z. Y. Ren, Y. B. Liu, J. G. Bian, Y. Yuan, H. F. Chen, W. F. Wang, X. Q. Li, Y. S. Zhu, K. J. Zhu, J. M. Yuan, L. W. Song, N. Wu, H. Y. Fu, X. L. Luo, T. Hu, XZ（蔡翔舟） Cai, W. G. Li, Z. Z. Du, H. Y. Zhang, M. L. Chen, J. Z. Wang, X. L. Li, H. L. Dai, Bo Xin, R. Y. Li, Miao He, R. B. Li, G. S. Varner, Qingying Jia, D. Y. Wang, G. S. Huang, P. P. Zhao, Z. G. Zhao, J. Chen, H. Qin, Shang Lunlin, Y. F. Liang, K. L. He, L. Huang, W. D. Li, G. F. Xu, L. H. Yi, S. W. Han, G. Li, D. P. Jin, H. M. Liu, L. P. Zhou, S. Jin, Cunfeng Wei, Y. C. Zhu, Jun Chen, Lianyou Shan, J. M. Zhang, C. D. Fu, Z. J. Sun, J. Y. Zhang, Lei Zhang, Ning Zhou, Y. J. Zhang, J. J. He, G. Rong, Q. M. Zhu, J. W. Zhang, Z. P. Mao, P. L. Wang, D. H. Zhang, Z. Y. Deng, Meng Wang, C. S. Yu, J. F. Chang, Hongbo Liao, Y. C. Xu, Y. K. Heng, Y. Y. Zhang, M. Z. Wang, Zheng Wang, X. C. Zhong, Yiyun Zhang, Xintong Li, X. H. He, X. X. Xie, H. S. Sun, D. L. Shen, Y. X. Ye, Haiping Peng, Y. P. Chu, Z. X. Liu, X. B. Ji, C. X. Liu, X. Y. Zhang, F. A. Harris, R. G. Liu, J. C. Chen, Chun-Hua Jiang, J. B. Liu, J. Nie, J. Fang, L. S. Zheng, Zujian Wang, Y. S. Dai, C. S. Gao, Jinxing Zheng, Z. P. Zhang, B. X. Zhang, Jiming Yang, W. R. Zhao, F. Liu, H. Y. Sheng, Yudan Wang, Y. N. Gao, G. R. Lu, Z. A. Zhu, Z. P. Zheng, Xiru Huang, Y. X. Yang, N. D. Qi, G. L. Tong, B. A. Zhuang, L. L. Ma, S. Q. Zhang, Z. A. Liu, Feng Shi, Y. Ban, Y. Z. Sun, J. Z. Bai, M. H. Ye, Guangzhao Zhou, S. M. Li, Fan Yang, Bing Zhou, L. Y. Dong, J. B. Zhao, X. Y. Shen, Q. J. Li, Huirun Chen, X. H. Mo, C. Z. Yuan, and Zhe Wang
Subjects: Physics, Nuclear and High Energy Physics, Particle physics
Published: 2004
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37. Measurement of inclusive momentum spectra and multiplicity distributions of charged particles ats∼2–5GeV

Author: Y. X. Yang, S. Q. Zhang, Z. G. Zhao, Y. Z. Sun, L. Huang, F. Li, Z. J. Sun, F. C. Ma, H. Y. Sheng, R. B. Li, M. L. Gao, Z. P. Zheng, X. Tang, N. D. Qi, W. Dunwoodie, Y. Zeng, X. Y. Zhang, W. D. Li, R. G. Liu, L. P. Fu, J. B. Liu, C. L. Luo, L. L. Ma, Houbing Lu, S. T. Xue, Xiru Huang, Z. A. Liu, W. R. Zhao, X. Q. Li, G. L. Tong, J. F. Qiu, C. C. Zhang, Y. Ban, F. Liu, B. A. Zhuang, S. D. Gu, Fang Liu, Y. Jin, Q. Yue, Y. N. Gao, Yingchun Zhu, J. C. Li, Q. J. Li, J. Z. Bai, X. S. Jiang, J. W. Zhao, B.S. Zou, Y. Q. Guo, D. Kong, Jiming Yang, G. W. Yu, L. S. Wang, Z. Z. Du, M. Y. Gong, Huirun Chen, Y. B. Chen, Y. C. Zhu, Y. P. Chu, Zheng Wang, Z. X. Liu, X. B. Ji, S. L. Olsen, X. H. Mo, P. L. Wang, S. S. Fang, Y. F. Lai, M. H. Ye, D. X. Zhao, B. Y. Zhang, H. F. Chen, Meng Wang, J. C. Chen, W. F. Wang, Z. Y. Wang, Hangxu Li, Xuanhong Lou, R. Malchow, Jiemin Li, Fan Yang, Y. B. Liu, Yudan Wang, S. Q. Tang, J. Fang, Bing Zhou, G. S. Varner, Qingying Jia, L. S. Zheng, H. Y. Zhang, X. C. Meng, L. W. Song, Y. N. Guo, S. P. Chi, X. L. Luo, G. S. Huang, G. R. Lu, J. Ying, F. A. Harris, L. Y. Dong, J. Y. Zhang, K. L. He, Jun-Bing Ma, X. M. Xia, Chun-Hua Jiang, Z. P. Zhang, S. W. Han, K. J. Zhu, Y. J. Zhang, J. M. Yuan, Y. K. Heng, Y. Y. Zhang, J. F. Chang, Hongbo Liao, B. X. Zhang, W. H. Toki, J. M. Zhang, X. Y. Ma, Zujian Wang, Z. A. Zhu, W. X. Gong, H. Y. Fu, G. Li, J. J. He, W. B. Yan, Yang Tian, C. D. Fu, Yiyun Zhang, Y. Yuan, Y. S. Zhu, Y. X. Ye, H. M. Hu, S. X. Du, M. L. Yan, Feng Shi, Xintong Li, Y. B. Zhao, D. L. Shen, X. X. Xie, Xingzhu Cui, Jie Chen, E. C. Ma, S. S. Sun, H. S. Chen, Guangzhao Zhou, C. X. Liu, J. B. Zhao, F. Lu, X. Y. Shen, G. F. Xu, X. H. He, S. Jin, C. Z. Yuan, Zhe Wang, Qiyang Zhang, Z. J. Guo, Jiawei Zhao, Z. J. Ke, H. Shen, R. Y. Li, P. Wang, Cunfeng Wei, Y. M. Dai, D. Tian, Ning Zhou, J. W. Zhang, J. G. Lu, T. Hu, XZ（蔡翔舟） Cai, B. D. Jones, X. C. Zhong, Z. D. Nie, J. Z. Wang, Y. F. Liang, D. P. Jin, J. G. Bian, D. H. Zhang, C. S. Yu, K. J. Li, W. G. Li, S. D. Yang, C. D. Qian, H. M. Liu, P. P. Zhao, H. L. Dai, Lei Zhang, Joseph Izen, G. Rong, H. X. Yang, Q. M. Zhu, Y. C. Xu, J. P. Liu, M. Z. Wang, G. A. Yang, H. S. Sun, Haiping Peng, J. Nie, Y. S. Dai, C. S. Gao, Jinxing Zheng, Miao He, L. P. Zhou, Z. P. Mao, S. L. Zang, and N. Wu
Subjects: Nuclear physics, Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, High energy, Electron–positron annihilation, High Energy Physics::Experiment, Astrophysics::Cosmology and Extragalactic Astrophysics, Multiplicity (chemistry), Spectral line, Charged particle
Abstract: Inclusive momentum spectra and multiplicity distributions of charged particles measured with the BESII detector at center of mass energies of 2.2, 2.6, 3.0, 3.2, 4.6 and 4.8 GeV are presented. Values of the second binomial moment ${R}_{2}$ obtained from the multiplicity distributions are reported. These results are compared with both experimental data from high energy ${e}^{+}{e}^{\ensuremath{-}},$ ep, and $p\overline{p}$ experiments and QCD calculations.
Published: 2004
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38. Measurements ofψ(2S)decays into vector-tensor final states

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: Physics, Nuclear and High Energy Physics, Particle physics, Meson, High Energy Physics::Experiment, Atomic physics, High Energy Physics - Experiment
Abstract: Decays of the $\psi(2S)$ into vector plus tensor meson final states have been studied with 14 million $\psi(2S)$ events collected with the BESII detector. Branching fractions of $\psi(2S) \rt \omega f_{2}(1270)$, $\rho a_2(1320)$, $K^*(892)^0\bar{K}^*_2(1430)^0+c.c.$ and $\phi f_2^{\prime}(1525)$ are determined. They improve upon previous BESI results and confirm the violation of the "12%" rule for $\psi(2S)$ decays to VT channels with higher precision., Comment: 7 pages, 7 figures and 2 tables
Published: 2004
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39. Observation of the Decayψ(2S)→KS0KL0

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: Nuclear physics, Physics, Particle physics, Amplitude, Annihilation, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, Perturbative QCD, High Energy Physics::Experiment, Relative phase, Pseudoscalar meson
Abstract: The decay psi(2S)-->(KSKL0)-K-0 is observed using psi(2S) data collected with the Beijing Spectrometer at the Beijing Electron-Positron Collider; the branching fraction is determined to be B(psi(2S)-->(KSKL0)-K-0)=(5.24+/-0.47+/-0.48)x10(-5). Compared with J/psi-->(KSKL0)-K-0, the psi(2S) branching fraction is enhanced relative to the prediction of the perturbative QCD "12%" rule. The result, together with the branching fractions of psi(2S) decays to other pseudoscalar meson pairs (pi(+)pi(-) and K+K-), is used to investigate the relative phase between the three-gluon and the one-photon annihilation amplitudes of psi(2S) decays.
Published: 2004
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40. Improved measurement of the branching ratio ofJ/ψ→KS0KL0

Author: M. L. Gao, Y. Zeng, Y. Q. Guo, Huirun Chen, Y. B. Chen, Y. F. Lai, F. Lu, L. W. Song, H. F. Chen, W. F. Wang, N. Wu, Yang Tian, S. M. Li, X. H. Mo, P. P. Zhao, L. S. Wang, Fan Yang, M. H. Ye, M. L. Chen, Y. P. Chu, X. B. Ji, Bing Zhou, Y. X. Yang, S. Q. Zhang, Y. Z. Sun, Jun-Bing Ma, Lei Zhang, S. X. Du, F. Li, L. P. Fu, K. L. He, M. L. Yan, G. Rong, W. R. Zhao, F. Liu, Y. N. Gao, S. D. Gu, Q. Yue, S. W. Han, Z. Z. Du, Jiming Yang, X. Y. Ma, J. M. Zhang, W. X. Gong, F. C. Ma, C. L. Luo, Z. J. Guo, C. Z. Yuan, Nongjian Tao, C. C. Zhang, Zhe Wang, Yudan Wang, X. Y. Zhang, R. G. Liu, X. Tang, Z. X. Liu, J. F. Qiu, X. Shi, Q. J. Li, J. B. Liu, G. S. Varner, Qingying Jia, X. H. He, G. R. Lu, S. P. Chi, J. G. Bian, Yingchun Zhu, Qiyang Zhang, D. L. Shen, X. C. Meng, Y. Jin, X. Q. Li, B.S. Zou, K. J. Zhu, P. Wang, Z. A. Zhu, C. X. Liu, J. M. Yuan, L. L. Ma, Z. Y. Yi, M. Y. Gong, Jun Chen, Z. A. Liu, J. C. Li, H. Qin, Z. P. Zheng, J. Z. Wang, Y. C. Zhu, L. Y. Dong, Y. Ban, C. D. Qian, J. Chen, P. L. Wang, Y. F. Liang, Juan Zhang, D. P. Jin, Meng Wang, Feng Shi, G. F. Xu, S. Jin, Y. N. Guo, Shang Lunlin, H. S. Chen, Xiru Huang, Y. M. Wu, J. Z. Bai, D. H. Zhang, F. A. Harris, G. L. Tong, C. S. Yu, Guangzhao Zhou, Z. Y. Zhang, R. B. Li, G. Li, R. Y. Li, B. A. Zhuang, Y. Yuan, Y. S. Zhu, Z. P. Zhang, Han-Qing Zheng, Z. G. Zhao, J. G. Lu, L. H. Yi, J. B. Zhao, H. Y. Sheng, L. Huang, C. D. Fu, Cunfeng Wei, H. M. Hu, Ning Zhou, Z. J. Sun, T. Hu, XZ（蔡翔舟） Cai, X. Y. Shen, N. D. Qi, Z. Y. Deng, X. L. Li, J. W. Zhang, Lianyou Shan, B. X. Zhang, X. C. Zhong, Xunchao Zhang, Chun-Hua Jiang, X. M. Xia, Z. D. Nie, S. L. Zang, Zujian Wang, H. Y. Fu, Xingzhu Cui, J. Nie, Zheng Wang, S. S. Sun, Y. S. Dai, C. S. Gao, Y. B. Zhao, X. J. Zhao, Jinxing Zheng, J. C. Chen, Q. M. Zhu, W. B. Yan, Miao He, J. Fang, L. S. Zheng, H. Y. Zhang, Y. C. Xu, M. Z. Wang, H. S. Sun, L. P. Zhou, G. S. Huang, Haiping Peng, Z. P. Mao, Fang Liu, J. Y. Zhang, S. D. Yang, D. X. Zhao, B. Y. Zhang, Y. K. Heng, Y. Y. Zhang, Hangxu Li, Jiemin Li, H. L. Dai, Y. J. Zhang, S. T. Xue, S. L. Olsen, J. F. Chang, Hongbo Liao, Z. Y. Wang, Yiyun Zhang, Y. X. Ye, W. G. Li, X. S. Jiang, D. Y. Wang, H. M. Liu, H. X. Yang, H.S. Xu, J. P. Liu, Z. Y. Ren, J. W. Zhao, G. W. Yu, Bo Xin, W. D. Li, Xintong Li, X. X. Xie, S. Z. Wang, S. S. Fang, Y. B. Liu, X. L. Luo, and J. J. He
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Perturbative QCD, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Relative phase, Collider
Abstract: The branching ratio of J/psi-->K_S K_L is measured with improved precision to be B(J/psi-->K_S K_L) = (1.82\pm 0.04\pm 0.13)\times 10^{-4}. using J/psi data collected with the Beijing Spectrometer (BESII) at the Beijing Electron-Positron Collider. This result is used to test the perturbative QCD ``12%'' rule between psi(2S) and J/psi decays and to investigate the relative phase between the three-gluon and one-photon annihilation amplitudes in J/psi decays.
Published: 2004
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41. Observation of the decay psi(2S)--K0SK0L

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
Abstract: The decay psi(2S)--K(0)(S)K(0)(L) is observed using psi(2S) data collected with the Beijing Spectrometer at the Beijing Electron-Positron Collider; the branching fraction is determined to be B(psi(2S)--K(0)(S)K(0)(L))=(5.24+/-0.47+/-0.48)x10(-5). Compared with J/psi--K(0)(S)K(0)(L), the psi(2S) branching fraction is enhanced relative to the prediction of the perturbative QCD "12%" rule. The result, together with the branching fractions of psi(2S) decays to other pseudoscalar meson pairs (pi(+)pi(-) and K+K-), is used to investigate the relative phase between the three-gluon and the one-photon annihilation amplitudes of psi(2S) decays.
Published: 2003

42. Partial wave analyses ofJ/ψ→γK+K−andγKS0KS0

Author: S. D. Gu, Q. Yue, J. Z. Wang, Feng Shi, Yang Tian, Y. F. Liang, D. P. Jin, G. S. Varner, Qingying Jia, Guangzhao Zhou, W. G. Li, L. P. Fu, W. B. Yan, S. X. Du, L. W. Song, C. L. Luo, Houbing Lu, D. H. Zhang, C. S. Yu, Y. J. Zhang, J. B. Zhao, M. L. Yan, C. C. Zhang, Jiming Yang, S. T. Xue, Huirun Chen, Yingchun Zhu, J. G. Lu, H. M. Liu, X. Y. Shen, P. P. Zhao, S. L. Olsen, E. C. Ma, X. Tang, Z. Y. Wang, Yudan Wang, S. Q. Tang, Xingzhu Cui, Qiyang Zhang, X. H. Mo, L. S. Wang, X. H. He, Y. P. Chu, X. B. Ji, G. R. Lu, M. H. Ye, Lei Zhang, X. C. Meng, W. D. Li, P. Wang, Y. M. Dai, S. L. Zang, T. Hu, XZ（蔡翔舟） Cai, Z. G. Zhao, Jie Chen, S. S. Sun, Z. P. Zheng, H. X. Yang, Z. A. Zhu, G. Rong, Z. J. Guo, Xiru Huang, S. S. Fang, Y. B. Liu, G. L. Tong, X. C. Zhong, J. P. Liu, B. A. Zhuang, L. Huang, H. Y. Sheng, Z. J. Sun, X. L. Luo, J. Nie, Fang Liu, H. M. Hu, N. D. Qi, J. W. Zhao, G. Li, G. W. Yu, F. Lu, C. D. Fu, L. L. Ma, Q. J. Li, W. R. Zhao, G. A. Yang, D. X. Zhao, B. Y. Zhang, Jiawei Zhao, F. Liu, Y. Yuan, Y. S. Zhu, J. J. He, Z. A. Liu, Y. Ban, F. Li, F. C. Ma, Hangxu Li, Jiemin Li, R. B. Li, J. C. Li, M. Y. Gong, Y. S. Dai, C. S. Gao, Jinxing Zheng, X. Q. Li, Z. J. Ke, Miao He, S. D. Yang, J. Z. Bai, D. Tian, Xintong Li, Y. N. Gao, X. X. Xie, S. P. Chi, B. X. Zhang, Z. D. Nie, J. G. Bian, Z. Z. Du, J. F. Qiu, H. Shen, L. P. Zhou, R. Y. Li, K. J. Zhu, J. M. Yuan, Z. X. Liu, H. L. Dai, C. Z. Yuan, Z. P. Mao, K. J. Li, X. Y. Zhang, K. L. He, Zhe Wang, Q. M. Zhu, R. G. Liu, S. W. Han, Y. C. Xu, L. Y. Dong, J. M. Zhang, M. Z. Wang, J. B. Liu, Cunfeng Wei, H. S. Sun, Fan Yang, Y. C. Zhu, Haiping Peng, P. L. Wang, Meng Wang, Bing Zhou, Ning Zhou, Y. X. Yang, J. W. Zhang, C. D. Qian, F. A. Harris, H. S. Chen, S. Q. Zhang, Z. P. Zhang, Chun-Hua Jiang, Y. Z. Sun, Y. Jin, Zujian Wang, D.V. Bugg, Y. B. Zhao, Jun-Bing Ma, X. Y. Ma, W. X. Gong, B.S. Zou, N. Wu, X. S. Jiang, M. L. Gao, Y. Zeng, Y. Q. Guo, Y. B. Chen, Y. F. Lai, H. F. Chen, W. F. Wang, J. F. Chang, Hongbo Liao, H. Y. Zhang, Yiyun Zhang, G. S. Huang, J. Ying, Y. X. Ye, J. Y. Zhang, Y. K. Heng, Y. Y. Zhang, Zheng Wang, G. F. Xu, S. Jin, X. M. Xia, J. C. Chen, H. Y. Fu, D. L. Shen, C. X. Liu, J. Fang, L. S. Zheng, and Y. N. Guo
Subjects: Physics, Nuclear and High Energy Physics, Partial wave analysis, Production (computer science), Atomic physics, Helicity, Spin-½
Abstract: Results are presented on $J/\ensuremath{\psi}$ radiative decays to ${K}^{+}{K}^{\ensuremath{-}}$ and ${K}_{S}^{0}{K}_{S}^{0}$ based on a sample of 58M $J/\ensuremath{\psi}$ events taken with the BES II detector. A partial wave analysis is carried out using the relativistic covariant tensor amplitude method in the 1--2 GeV mass range. There is conspicuous production due to the ${f}_{2}^{\ensuremath{'}}(1525)$ and ${f}_{0}(1710).$ The latter peaks at a mass of $1740\ifmmode\pm\else\textpm\fi{}{4}_{\ensuremath{-}25}^{+10}\mathrm{MeV}$ with a width of ${166}_{\ensuremath{-}8\ensuremath{-}10}^{+5+15}\mathrm{MeV}.$ Spin 0 is strongly preferred over spin 2. For the ${f}_{2}^{\ensuremath{'}}(1525),$ the helicity amplitude ratios are determined to be ${x}^{2}=1.00\ifmmode\pm\else\textpm\fi{}{0.28}_{\ensuremath{-}0.36}^{+1.06}$ and ${y}^{2}=0.44\ifmmode\pm\else\textpm\fi{}{0.08}_{\ensuremath{-}0.56}^{+0.10}.$
Published: 2003
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43. Observation of a Near-Threshold Enhancement in thepp¯Mass Spectrum from RadiativeJ/ψ→γpp¯Decays

Author: K. Li, X. L. Luo, L. W. Song, J. Z. Wang, M. H. Ye, Y. C. Zhu, Stephen L. Olsen, R. B. Li, D. P. Jin, N. Wu, P. L. Wang, Meng Wang, J. J. He, L. Y. Dong, D. H. Zhang, Y. Jin, Y. J. Zhang, S. D. Yang, C. S. Yu, Fang Liu, C. F. Liu, Yingchun Zhu, Y. N. Guo, H. Shen, R. Y. Li, J. W. Zhao, Feng Shi, S. T. Xue, G. W. Yu, S. L. Zang, D. X. Zhao, Jing Wang, Y. B. Zhao, S. P. Chi, F. Lu, B. Y. Zhang, Jiemin Li, L. S. Wang, Xintong Li, F. Li, X. X. Xie, F. C. Ma, J. F. Chang, C. D. Qian, S. D. Gu, Guangzhao Zhou, Cunfeng Wei, Ning Zhou, H. Y. Zhang, Liang Huang, Yiyun Zhang, Q. Yue, B. X. Zhang, Q. J. Li, Xingzhu Cui, K. J. Zhu, J. M. Yuan, Yang Tian, Z. P. Zheng, H. S. Chen, G. S. Huang, M. L. Gao, Bing Zhou, Y. X. Ye, Y. Zeng, X. Y. Shen, Z. Zhao, J. F. Qiu, J. W. Zhang, Jie Chen, S. S. Fang, Z. J. Lu, Y. Q. Guo, J. Ying, J. Y. Zhang, Y. B. Chen, Y. B. Liu, J. Nie, Y. F. Lai, H. F. Chen, Yudan Wang, L. P. Zhou, S. Q. Tang, J. G. Bian, Xiru Huang, G. L. Tong, S. X. Du, W. F. Wang, X. C. Meng, G. R. Lu, Z. J. Guo, B. A. Zhuang, H. H. Li, Z. P. Mao, X. Q. Li, Y. K. Heng, Y. Y. Zhang, M. L. Yan, Z. A. Zhu, X. Y. Zhang, G. S. Varner, R. G. Liu, Y. S. Dai, T. Hong, G. Li, C. Z. Yuan, S. Q. Zhang, Zheng Wang, J. B. Liu, F. A. Harris, C. S. Gao, Jinxing Zheng, P. P. Zhao, Jiming Yang, Zhe Wang, C. D. Fu, Y. Z. Sun, X. S. Jiang, W. D. Li, X. Tang, Z. P. Zhang, K. L. He, Chun-Hua Jiang, W. B. Yan, S. W. Han, Qiyang Zhang, Z. Y. Wang, J. M. Zhang, J. C. Chen, Xuanhong Lou, W. H. Toki, Lei Zhang, R. Malchow, Joseph Izen, G. Rong, P. Wang, Zujian Wang, Q. M. Zhu, Y. Yuan, Y. S. Zhu, Y. M. Dai, Jun-Bing Ma, J. Fang, L. S. Zheng, Y. C. Xu, M. Z. Wang, D. Paluselli, W. X. Gong, D. Kong, W. R. Zhao, H. S. Sun, Y. P. Chu, X. B. Ji, F. Liu, M. Y. Gong, Haiping Peng, B.S. Zou, Jiawei Zhao, Y. N. Gao, J. Chen, H. M. Hu, Z. J. Ke, Z. J. Sun, L. P. Fu, Houbing Lu, C. C. Zhang, J. C. Li, H. X. Yang, W. G. Li, H. M. Liu, X. H. Mo, J. G. Lu, T. Hu, XZ（蔡翔舟） Cai, J. P. Liu, G. A. Yang, Z. Z. Du, B. D. Jones, S.S. Sun, X. C. Zhong, Z. X. Liu, W. Dunwoodie, D. Tian, G. F. Xu, S. Jin, H. Y. Sheng, N. D. Qi, Z. A. Liu, Y. Ban, J. Z. Bai, M. He, D. L. Shen, C. X. Liu, X. M. Xia, H. Y. Fu, Z. D. Nie, E. C. Ma, and X. H. He
Subjects: Physics, Nuclear physics, Antiparticle, Particle decay, Mass spectrum, Radiative transfer, General Physics and Astronomy, High Energy Physics::Experiment, Invariant mass, Elementary particle, Atomic physics, Nucleon, Resonance (particle physics)
Abstract: We observe a narrow enhancement near 2m(p) in the invariant mass spectrum of pp pairs from radiative J/psi-->gammapp decays. No similar structure is seen in J/psi-->pi(0)pp decays. The results are based on an analysis of a 58 x 10(6) event sample of J/psi decays accumulated with the BESII detector at the Beijing electron-positron collider. The enhancement can be fit with either an S- or P-wave Breit-Wigner resonance function. In the case of the S-wave fit, the peak mass is below 2m(p) at M=1859(+3)(-10) (stat)+5-25(syst) MeV/c(2) and the total width is Gamma
Published: 2003
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44. Observation of a near-threshold enhancement in the pp mass spectrum from radiative J/psi--gammapp decays

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
Abstract: We observe a narrow enhancement near 2m(p) in the invariant mass spectrum of pp pairs from radiative J/psi--gammapp decays. No similar structure is seen in J/psi--pi(0)pp decays. The results are based on an analysis of a 58 x 10(6) event sample of J/psi decays accumulated with the BESII detector at the Beijing electron-positron collider. The enhancement can be fit with either an S- or P-wave Breit-Wigner resonance function. In the case of the S-wave fit, the peak mass is below 2m(p) at M=1859(+3)(-10) (stat)+5-25(syst) MeV/c(2) and the total width is Gamma30 MeV/c(2) at the 90% confidence level. These mass and width values are not consistent with the properties of any known particle.
Published: 2003

45. THU0146 A Multicenter, Randomized, Double-Blinded, Placebo-Controlled TRIAL Evaluating the Efficacy and of Tong Luo Hua Shi Capsule, A Modernized Tibetan Medicine, in Patients with Rheumatoid Arthritis

Author: B.-Z.-X. Yang, H. Yao, Y.-J. Song, M.-L. Gao, H.-Y. Wang, X.-B. Qi, Y.-H. Wu, S.-Y. Hu, Wei Liu, and G. Li
Subjects: medicine.medical_specialty, Traditional medicine, business.industry, Immunology, Placebo-controlled study, Arthritis, medicine.disease, Placebo, General Biochemistry, Genetics and Molecular Biology, Clinical trial, Rheumatology, Informed consent, Internal medicine, Rheumatoid arthritis, medicine, Immunology and Allergy, Medical prescription, Adverse effect, business
Abstract: Background Tong Luo Hua Shi Capsule (TLHS) is a new drug modified from Wu-wei-gan-lu Decoction, which has been used as one of the basic prescriptions of the Tibetan Medicine for the treatments of different diseases, especially the Rheumatoid arthritis (RA), for hundreds of years in China. The previous clinical trials showed its anti-arthritis effect and the tolerance in healthy participants. However, there was no further clinical trial reported. Objectives The purpose of this study is to investigate the efficacy and safety of Tong Luo Hua Shi Capsule on the participants with RA. Methods This is a multicenter, randomized, double-blinded, placebo controlled, dose finding study, and reported following the recommendation of the CONSORT. In this randomized, double-blinded, placebo controlled, dose finding study, 236 patients with active RA from five medical centers were administered 3 doses (1.6g, 1.2g or 0.8g t.i.d.) of TLHS or 4 pieces of placebo capsule t.i.d. peroral administration daily for 8 weeks. During the clinic visits, investigators obtained multiple blood samples, observed physical exams, and assessed swollen, tender, painful joints. The clinical manifestations and laboratory findings were examined every 2 weeks after starting treatment up to the 8th week. The trial registration number is ChiCTR-TRC-12003871. Results 236 participants from 5 centers were screened with written informed consent, 4 participants were excluded and 20 dropped out for the lost follow-up or empty treatment. there is no significant difference in the incidences of adverse event ( P =0.963) or adverse drug reactions ( P =0.878) among the groups. No serious adverse events occurred in the trial. After the 8-week-administration, the improvement rates of the ACR 20 in the TLHS 4.8g and 3.6g groups were significantly higher than the control group ( P P P Conclusions The outcomes show that TLHS can ameliorate the improvement in the ACR criteria and other endpoints, such as pain, tender, swollen, morning stiffness of joints, patients9 grip strength and physician9s assessment. Moreover, TLHS is safe for patients, besides of the occurrence of transitory adverse events. References Ximin Zhang, Xueyan Li, Yipei Zhang, et al. The quality standard for the Tong Luo Hua Shi Capsule[J]. Chinese Journal of Experimental Traditional Medical Formulae. 16(13): 75-76, 2010. Jieyun Jiang, Qiang Xu. Immunomodulatory activity of the aqueous extract from rhizome of Smilax glabra in the later phase of adjuvant-induced arthritis in rats [J]. J Ethnopharmacol. 85(1): 53-59, 2003. Guangquan Li, Jianxin Guo, Ping Li, et al. The anti-inflammatory effect of Wu Wei Gan Lu medicated foam. Chinese Traditional Patent Medicine. 23(3): 224-225, 2001. Linzhaxi Zhuoma. Study on the Wu Wei Gan Lu medicated bath of Tibetan Medicine. Journal of Medicine and Pharmacy of Chinese Minorities. 19(5): 28-31, 2013. Disclosure of Interest : W. Liu: None declared, Y.-H. Wu: None declared, S.-Y. Hu: None declared, M.-L. Gao: None declared, H.-Y. Wang: None declared, Y.-J. Song: None declared, B.-Z.-X. Yang: None declared, H. Yao Grant/research support: drug supplier, X.-B. Qi: None declared, G. Li: None declared DOI 10.1136/annrheumdis-2014-eular.3132
Published: 2014
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46. Radiative Decay of the \psi(2S) into Two Pseudoscalar Mesons

Author: J. Z. Bai, Y. Ban, J. G. Bian, I. Blum, A. D. Chen, G. P. Chen, H. F. Chen, H. S. Chen, J. Chen, J. C. Chen, X. D. Chen, Y. Chen, Y. B. Chen, B. S. Cheng, J. B. Choi, X. Z. Cui, H. L. Ding, L. Y. Dong, Z. Z. Du, W. Dunwoodie, C. S. Gao, M. L. Gao, S. Q. Gao, P. Gratton, J. H. Gu, S. D. Gu, W. X. Gu, Y. N. Guo, Z. J. Guo, S. W. Han, Y. Han, F. A. Harris, J. He, J. T. He, K. L. He, M. He, Y. K. Heng, D. G. Hitlin, G. Y. Hu, H. M. Hu, J. L. Hu, Q. H. Hu, T. Hu, G. S. Huang, X. P. Huang, Y. Z. Huang, J. M. Izen, C. H. Jiang, Y. Jin, B. D. Jones, X. Ju, J. S. Kang, Z. J. Ke, M. H. Kelsey, B. K. Kim, H. J. Kim, S. K. Kim, T. Y. Kim, D. Kong, Y. F. Lai, P. F. Lang, A. Lankford, 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, X. C. Lou, B. Lowery, G. R. Lu, F. Lu, J. G. Lu, X. L. Luo, E. C. Ma, J. M. Ma, R. Malchow, H. S. Mao, Z. P. Mao, X. C. Meng, X. H. Mo, J. Nie, S. L. Olsen, J. Oyang, D. Paluselli, L. J. Pan, J. Panetta, H. B. Park, F. Porter, N. D. Qi, X. R. Qi, C. D. Qian, J. F. Qiu, Y. H. Qu, Y. K. Que, G. Rong, M. Schernau, 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, J. Standifird, J. Y. Suh, H. S. Sun, L. F. Sun, Y. Z. Sun, S. Q. Tang, W. Toki, G. L. Tong, G. S. Varner, F. Wang, L. Wang, L. S. Wang, L. Z. Wang, P. Wang, P. L. Wang, S. M. Wang, Y. Y. Wang, Z. Y. Wang, M. Weaver, 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, W. 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, and B. A. Zhuang
Subjects: Physics, Nuclear physics, Pseudoscalar, Nuclear and High Energy Physics, Meson, Branching fraction, Electron–positron annihilation, Excited state, Radiative transfer, Radiative decay, Gluon, High Energy Physics - Experiment
Abstract: Radiative decays of the radially excited charmonium resonance, \psi(2S), into \pi\pi, K Kbar and \eta\eta final states have been measured in a sample of 3.96 * 10^6 \psi(2S) events collected by the BES collaboration. The branching ratios B(\psi(2S) -> \gamma f_{2}(1270)) = (2.27 +- 0.26 +- 0.39) * 10^{-4} and B(\psi(2S) -> \gamma f_0(1710)) * B(f_0(1710) -> K^+ K^-) = (5.59 +- 1.12 +- 0.93) * 10^{-5} are obtained. When compared to the corresponding radiative J/\psi decays, the observed \psi(2S) radiative decay rates into \gamma f_2(1270) and \gamma f_0(1710) are consistent with the 15% rule., Comment: 7 pages, 5 figures
Published: 2001

47. Measurement of the mass and full width of theηcmeson

Author: J. Z. Bai, Y. Ban, J. G. Bian, I. Blum, A. D. Chen, G. P. Chen, H. F. Chen, H. S. Chen, J. Chen, J. C. Chen, X. D. Chen, Y. Chen, Y. B. Chen, B. S. Cheng, J. B. Choi, X. Z. Cui, H. L. Ding, L. Y. Dong, Z. Z. Du, W. Dunwoodie, C. S. Gao, M. L. Gao, S. Q. Gao, P. Gratton, J. H. Gu, S. D. Gu, W. X. Gu, Y. N. Guo, Z. J. Guo, S. W. Han, Y. Han, F. A. Harris, J. He, J. T. He, K. L. He, M. He, Y. K. Heng, D. G. Hitlin, G. Y. Hu, H. M. Hu, J. L. Hu, Q. H. Hu, T. Hu, G. S. Huang, X. P. Huang, Y. Z. Huang, J. M. Izen, C. H. Jiang, Y. Jin, B. D. Jones, X. Ju, J. S. Kang, Z. J. Ke, M. H. Kelsey, B. K. Kim, H. J. Kim, S. K. Kim, T. Y. Kim, D. Kong, Y. F. Lai, P. F. Lang, A. Lankford, 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, X. C. Lou, B. Lowery, G. R. Lu, F. Lu, J. G. Lu, X. L. Luo, E. C. Ma, J. M. Ma, R. Malchow, H. S. Mao, Z. P. Mao, X. C. Meng, X. H. Mo, J. Nie, S. L. Olsen, J. Oyang, D. Paluselli, L. J. Pan, J. Panetta, H. Park, F. Porter, N. D. Qi, X. R. Qi, C. D. Qian, J. F. Qiu, Y. H. Qu, Y. K. Que, G. Rong, M. Schernau, 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, J. Standifird, J. Y. Suh, H. S. Sun, L. F. Sun, Y. Z. Sun, S. Q. Tang, W. Toki, G. L. Tong, G. S. Varner, F. Wang, L. Wang, L. S. Wang, L. Z. Wang, P. Wang, P. L. Wang, S. M. Wang, Y. Y. Wang, Z. Y. Wang, M. Weaver, 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, W. 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, Y. H. Zheng, Z. P. Zheng, B. Q. Zhou, L. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, and B. A. Zhuang
Subjects: Physics, Nuclear and High Energy Physics, Particle decay, Crystallography, Pion, Meson, Electron–positron annihilation, Hadron, Mass spectrum, Elementary particle, Quarkonium
Abstract: In a sample of 7.8 million J/{psi} decays collected in the Beijing Spectrometer, the process J/{psi}{yields}{gamma}{eta}{sub c} is observed for five different {eta}{sub c} decay channels: K{sup +}K{sup -}{pi}{sup +}{pi}{sup -}, {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -}, K{sup {+-}}K{sub S}{sup 0}{pi}{sup {+-}} (with K{sub S}{sup 0}{yields}{pi}{sup +}{pi}{sup -}), {phi}{phi} (with {phi}{yields}K{sup +}K{sup -}) and K{sup +}K{sup -}{pi}{sup 0}. From these signals, we determine the mass of {eta}{sub c} to be 2976.6{+-}2.9{+-}1.3 MeV. Combining this result with a previously reported result from a similar study using {psi}(2S){yields}{gamma}{eta}{sub c} detected in the same spectrometer gives m{sub {eta}{sub c}}=2976.3{+-}2.3{+-}1.2 MeV. For the combined samples, we obtain {gamma}{sub {eta}{sub c}}=11.0{+-}8.1{+-}4.1 MeV. (c) 2000 The American Physical Society.
Published: 2000
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48. Measurement of $\psi(2S)$ decays to baryon pairs

Author: X. H. Mo, L. S. Wang, M. H. Ye, N. Wu, M. H. Kelsey, H. W. Zhao, X. Q. Li, Q. H. Hu, Qiyang Zhang, J. Panetta, Y. C. Zhu, D. X. Zhao, B. Y. Zhang, Jiemin Li, Dehong Zhang, Y. Y. Wang, P. Wang, S. D. Gu, P. L. Wang, H. Y. Shen, Z. J. Guo, Y. Jin, J. He, M. L. Gao, Jiawei Zhao, F. Lu, Y. H. Xie, G. S. Varner, Miao He, S. Q. Gao, Z. J. Ke, C. Y. Yang, Y. B. Chen, G. P. Chen, F. A. Harris, Y. F. Lai, Tai Young Kim, S. W. Ye, M. Weaver, H. F. Chen, W. Dunwoodie, W. X. Gu, L. P. Zhou, F. Wang, W. D. Li, S. T. Xue, Xingzhu Cui, J. G. Lu, W. H. Toki, Liangfeng Sun, J. Y. Suh, Z. P. Mao, G. Y. Hu, C. Z. Yuan, Michael Schernau, W. Yang, J. Nie, H. X. Yang, K. L. He, D. M. Xi, S. W. Han, T. Hu, Xuan Yang, J. Yan, H. Shen, B. K. Kim, J. F. Qiu, Y. Y. Shao, J. W. Zhao, J. P. Liu, Y. G. Xie, J. Chen, C. S. Gao, S. L. Olsen, Z. Q. Yu, G. F. Xu, Chun-Hua Jiang, D. Kong, D. G. Hitlin, B. D. Jones, Jinxing Zheng, Z. C. Li, Y. K. Que, H. M. Hu, G. W. Yu, W. G. Yan, B. W. Shen, S. M. Wang, Cunfeng Wei, Jun-Bing Ma, J. Oyang, Z. Y. Wang, C. C. Zhang, J. W. Zhang, Jian Kang, H. S. Chen, H. L. Ding, X. D. Chen, L. Zhang, B. J. Liu, X. C. Meng, J. Standifird, Y. H. Qu, S. Q. Tang, Lu Zhang, Lei Zhang, P. F. Lang, J. B. Choi, Y. Ban, G. R. Lu, Joseph Izen, G. Rong, H. Z. Shi, B. Lowery, J. Z. Bai, Cheng-Kui Li, X. F. Song, Z. A. Zhu, D. L. Shen, C. X. Yu, K. J. Zhu, Y. Yuan, Y. H. Yu, Y. S. Zhu, L. Z. Wang, N. D. Qi, Q. M. Zhu, Feng Shi, X. Ju, S. K. Kim, Z. Z. Du, Y. X. Ye, P. Gratton, X. M. Xia, G. S. Huang, Z. X. Liu, P. Q. Li, H. S. Sun, X. N. Li, W. G. Li, J. G. Bian, J. Y. Zhang, X. H. Li, X. Y. Shen, X. L. Luo, H. M. Liu, Y. K. Heng, Y. Y. Zhang, Z. G. Zhao, J. L. Hu, Y. G. Wu, C. D. Qian, H. B. Li, M. G. Zhao, Hyunyong Kim, D. Paluselli, J. C. Li, J. J. He, D. H. Zhang, C. S. Yu, J. C. Chen, Xuanhong Lou, R. Malchow, E. C. Ma, L. S. Zheng, H. L. Zhang, Y. B. Liu, A. J. Lankford, D. Li, X. Y. Zhang, R. G. Liu, H. Park, Y. L. Han, H. S. Mao, L. Y. Dong, B. S. Cheng, J. H. Gu, Bing Zhou, L. J. Pan, S. Q. Zhang, Y. Z. Sun, Y. N. Guo, A. D. Chen, I. Blum, Y. Z. Huang, W. R. Zhao, F. Liu, F. C. Porter, X. R. Qi, Z. P. Zheng, Peng Zhang, Xiru Huang, Feng Liu, G. L. Tong, B. A. Zhuang, and C. M. Yang
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Perturbative QCD, Lambda, Omega, High Energy Physics - Experiment, Baryon, Factorization, Mass spectrum, High Energy Physics::Experiment
Abstract: A sample of 3.95M $\psi(2S)$ decays registered in the BES detector are used to study final states containing pairs of octet and decuplet baryons. We report branching fractions for $\psi(2S)\to p\bar{p}$, $\Lambda\bar{\Lambda}$, $\Sigma^0\bar{\Sigma}{}^0$, $\Xi^-\bar{\Xi}{}^+$, $\Delta^{++}\bar{\Delta}{}^{--}$, $\Sigma^+(1385)\bar{\Sigma}{}^-(1385)$, $\Xi^0(1530)\bar{\Xi}{}^0(1530)$, and $\Omega^-\bar{\Omega}{}^+$. These results are compared to expectations based on the SU(3)-flavor symmetry, factorization, and perturbative QCD., Comment: 22 pages, 21 figures, 4 tables
Published: 2000

49. Direct measurement ofB(D0→φX0)andB(D+→φX+)

Author: J. Z. Bai, Y. Ban, J. G. Bian, I. Blum, G. P. Chen, H. F. Chen, J. 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, W. Dunwoodie, C. S. Gao, M. L. Gao, S. Q. Gao, P. Gratton, J. H. Gu, S. D. Gu, W. X. Gu, Y. F. Gu, Y. N. Guo, Z. J. Guo, S. W. Han, Y. Han, F. A. Harris, J. He, J. T. He, K. L. He, M. He, Y. K. Heng, D. G. Hitlin, G. Y. Hu, H. M. Hu, J. L. Hu, Q. H. Hu, T. Hu, X. Q. Hu, Y. Z. Huang, G. S. Huang, J. M. Izen, C. H. Jiang, Y. Jin, B. D. Jones, X. Ju, Z. J. Ke, M. H. Kelsey, B. K. Kim, D. Kong, Y. F. Lai, P. F. Lang, A. Lankford, C. G. Li, D. Li, H. B. Li, J. Li, J. C. Li, P. Q. Li, R. B. Li, W. Li, W. G. Li, X. H. Li, X. N. Li, H. M. Liu, J. Liu, R. G. Liu, Y. Liu, X. C. Lou, B. Lowery, F. Lu, J. G. Lu, X. L. Luo, E. C. Ma, J. M. Ma, R. Malchow, M. Mandelkern, H. S. Mao, Z. P. Mao, X. C. Meng, J. Nie, S. L. Olsen, J. Oyang, D. Paluselli, L. J. Pan, J. Panetta, F. Porter, N. D. Qi, X. R. Qi, C. D. Qian, J. F. Qiu, Y. H. Qu, Y. K. Que, G. Rong, M. Schernau, B. Schmid, J. Schultz, Y. Y. Shao, B. W. Shen, D. L. Shen, H. Shen, X. Y. Shen, H. Y. Sheng, H. Z. Shi, X. F. Song, J. Standifird, D. Stoker, F. Sun, H. S. Sun, Y. Sun, Y. Z. Sun, S. Q. Tang, W. Toki, G. L. Tong, G. S. Varner, F. Wang, L. S. Wang, L. Z. Wang, M. Wang, P. Wang, P. L. Wang, S. M. Wang, T. J. Wang, Y. Y. Wang, M. Weaver, C. L. Wei, N. Wu, Y. G. Wu, D. M. Xi, X. M. Xia, P. P. Xie, 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, J. Yang, W. 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, 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, G. P. Zhou, H. S. Zhou, L. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, and B. A. Zhuang
Subjects: Combinatorics, Physics, Nuclear and High Energy Physics, D meson
Abstract: Author(s): Bai, JZ; Ban, Y; Bian, JG; Blum, I; Chen, GP; Chen, HF; Chen, J; Chen, JC; Chen, Y; Chen, YB; Chen, YQ; Cheng, BS; Cui, XZ; Ding, HL; Dong, LY; Du, ZZ; Dunwoodie, W; Gao, CS; Gao, ML; Gao, SQ; Gratton, P; Gu, JH; Gu, SD; Gu, WX; Gu, YF; Guo, YN; Guo, ZJ; Han, SW; Han, Y; Harris, FA; He, J; He, JT; He, KL; He, M; Heng, YK; Hitlin, DG; Hu, GY; Hu, HM; Hu, JL; Hu, QH; Hu, T; Hu, XQ; Huang, YZ; Huang, GS; Izen, JM; Jiang, CH; Jin, Y; Jones, BD; Ju, X; Ke, ZJ; Kelsey, MH; Kim, BK; Kong, D; Lai, YF; Lang, PF; Lankford, A; Li, CG; Li, D; Li, HB; Li, J; Li, JC; Li, PQ; Li, RB; Li, W; Li, WG; Li, XH; Li, XN; Liu, HM; Liu, J; Liu, RG; Liu, Y; Lou, XC; Lowery, B; Lu, F; Lu, JG; Luo, XL; Ma, EC; Ma, JM; Malchow, R; Mandelkern, M; Mao, HS; Mao, ZP; Meng, XC; Nie, J; Olsen, SL | Abstract: The first measurement of (Formula presented) and an upper limit for (Formula presented) are determined from 22.3 (Formula presented) of (Formula presented) annihilation data at a c.m. energy of 4.03 GeV. The data were recorded by the Beijing Spectrometer (BES) at BEPC. A recoil charge method is applied to charm threshold data to determine the charge of the D meson in the recoil from (Formula presented) reconstructed (Formula presented) (Formula presented) mesons. The branching fractions (Formula presented) and (Formula presented) are determined from 10 events with a reconstructed D and a recoiling (Formula presented) In addition, a 90% C.L. upper limit of (Formula presented) is determined from a search for semileptonic decays of the (Formula presented) © 2000 The American Physical Society.
Published: 2000
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50. ψ(2S)→π+π−J/ψdecay distributions

Author: J. Z. Bai, Y. Ban, J. G. Bian, I. Blum, G. P. Chen, H. F. Chen, J. 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, W. Dunwoodie, C. S. Gao, M. L. Gao, S. Q. Gao, P. Gratton, J. H. Gu, S. D. Gu, W. X. Gu, Y. F. Gu, Z. J. Guo, Y. N. Guo, S. W. Han, Y. Han, F. A. Harris, J. He, J. T. He, K. L. He, M. He, Y. K. Heng, D. G. Hitlin, G. Y. Hu, H. M. Hu, J. L. Hu, Q. H. Hu, T. Hu, X. Q. Hu, G. S. Huang, Y. Z. Huang, J. M. Izen, C. H. Jiang, Y. Jin, B. D. Jones, X. Ju, Z. J. Ke, M. H. Kelsey, B. K. Kim, D. Kong, Y. F. Lai, P. F. Lang, A. Lankford, C. G. Li, D. Li, H. B. Li, J. Li, J. C. Li, P. Q. Li, R. B. Li, W. Li, W. G. Li, X. H. Li, X. N. Li, H. M. Liu, J. Liu, R. G. Liu, Y. Liu, X. C. Lou, B. Lowery, F. Lu, J. G. Lu, X. L. Luo, E. C. Ma, J. M. Ma, R. Malchow, H. S. Mao, Z. P. Mao, X. C. Meng, J. Nie, S. L. Olsen, J. Oyang, D. Paluselli, L. J. Pan, J. Panetta, F. Porter, N. D. Qi, X. R. Qi, C. D. Qian, J. F. Qiu, Y. H. Qu, Y. K. Que, G. Rong, M. Schernau, Y. Y. Shao, B. W. Shen, D. L. Shen, H. Shen, X. Y. Shen, H. Y. Sheng, H. Z. Shi, X. F. Song, J. Standifird, F. Sun, H. S. Sun, Y. Sun, Y. Z. Sun, S. Q. Tang, W. Toki, G. L. Tong, G. S. Varner, F. Wang, L. S. Wang, L. Z. Wang, M. Wang, P. Wang, P. L. Wang, S. M. Wang, T. J. Wang, Y. Y. Wang, M. Weaver, C. L. Wei, N. Wu, Y. G. Wu, D. M. Xi, X. M. Xia, P. P. Xie, 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, J. Yang, W. 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, 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, G. P. Zhou, H. S. Zhou, L. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, and B. A. Zhuang
Subjects: Physics, Nuclear and High Energy Physics, Mathematical physics
Abstract: Author(s): Bai, JZ; Ban, Y; Bian, JG; Blum, I; Chen, GP; Chen, HF; Chen, J; Chen, JC; Chen, Y; Chen, YB; Chen, YQ; Cheng, BS; Cui, XZ; Ding, HL; Dong, LY; Du, ZZ; Dunwoodie, W; Gao, CS; Gao, ML; Gao, SQ; Gratton, P; Gu, JH; Gu, SD; Gu, WX; Gu, YF; Guo, ZJ; Guo, YN; Han, SW; Han, Y; Harris, FA; He, J; He, JT; He, KL; He, M; Heng, YK; Hitlin, DG; Hu, GY; Hu, HM; Hu, JL; Hu, QH; Hu, T; Hu, XQ; Huang, GS; Huang, YZ; Izen, JM; Jiang, CH; Jin, Y; Jones, BD; Ju, X; Ke, ZJ; Kelsey, MH; Kim, BK; Kong, D; Lai, YF; Lang, PF; Lankford, A; Li, CG; Li, D; Li, HB; Li, J; Li, JC; Li, PQ; Li, RB; Li, W; Li, WG; Li, XH; Li, XN; Liu, HM; Liu, J; Liu, RG; Liu, Y; Lou, XC; Lowery, B; Lu, F; Lu, JG; Luo, XL; Ma, EC; Ma, JM; Malchow, R; Mao, HS; Mao, ZP; Meng, XC; Nie, J; Olsen, SL; Oyang, J | Abstract: Using a sample of 3.8 M (Formula presented) events accumulated with the BES detector, the process (Formula presented) is studied. The angular distributions are compared with the general decay amplitude analysis of Cahn. We find that the dipion system requires some D wave amplitude, as well as S wave. On the other hand, the (Formula presented) relative angular momentum is consistent with being pure S wave. The decay distributions have been fit to heavy quarkonium models, including the Novikov-Shifman model. This model, which is written in terms of the parameter (Formula presented) predicts that D wave pions should be present. We determine (Formula presented) based on the joint (Formula presented) distribution. The fraction of D wave amplitude as a function of (Formula presented) is found to decrease with increasing (Formula presented) in agreement with the model. We have also fit the Mannel-Yan model, which is another model that allows D wave pions. © 2000 The American Physical Society.
Published: 2000
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