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1. Developmental changes of carcass composition, meat quality and organs in the Jinhua pig and Landrace

Author

Z.-G. Miao, L.-J. Wang, Z.-R. Xu, J.-F. Huang, and Y.-R. Wang

Subjects
Jinhua pigs, Landrace, carcass composition, meat quality, organ weight, Animal culture, SF1-1100
Abstract

The present study was aimed to compare the developmental changes of carcass composition, meat quality characteristics and organ weight in pigs of different breeds. Six pigs (sex balance) of each breed were slaughtered at 35, 80 and 125 days of age, respectively. The carcass was chilled and the left carcass side was dissected into bone, lean meat, fat and skin; additionally, organ weight and meat quality parameters were observed. Carcasses of the Jinhua pig were lighter (P < 0.001), contained less lean meat percentage (P < 0.01) and more carcass fat percentage (P < 0.05) than did carcasses of the Landrace. L*-values were lower in Jinhua pigs than in Landrace at 125 days of age (P < 0.05), but the Jinhua pig had higher a*-values compared with Landrace at the age of 80 days (P < 0.01) and 125 days (P < 0.01), respectively. In addition, Jinhua pigs showed lower colour scores (P < 0.05), higher intramuscular fat (IMF) percentage (P < 0.05), less marbling scores (P < 0.05) and lower drip loss (P < 0.05) than Landrace. For organ weight, Jinhua pigs had higher relative heart weight at the age of 80 days (P < 0.05) and 125 days (P < 0.001), and higher relative liver weight at 125 days of age (P < 0.01) than that of Landrace. In addition, the relative kidney weight was heavier (P < 0.001) in the Jinhua pig than in the Landrace during the whole experiment. These results indicated that developmental changes of carcass composition, meat quality parameters and organ weight displayed breed differences. Jinhua pigs were fatter than Landrace but the former had better quality characteristics in the meat.

Published
2009
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5. [Research progress of mesenchymal stem cells on nasal mucosa regeneration after the damaged and lost]

Author

C J, Yu, Y F, Xun, M H, Wang, Z R, Xu, and X, Gao

Subjects
Nasal Mucosa, Olfactory Mucosa, Regeneration, Mesenchymal Stem Cells, Mesenchymal Stem Cell Transplantation
Abstract

鼻黏膜是上呼吸道系统的第一道防御屏障，在抵御外来不良刺激，维持鼻腔正常生理功能方面起到重要作用。鼻黏膜广泛损伤缺失后，其愈合常受到各种生长因子、细胞因子及蛋白酶等因素的干扰而导致再生鼻黏膜的功能障碍。间充质干细胞（mesenchymal stem cells，MSC）具有归巢性、免疫调节功能，分泌细胞因子和促进生长因子增殖等优势，可通过分泌生长因子、细胞因子及白介素等，加快再上皮化过程和纤毛再生的速度，从而促进鼻黏膜损伤缺失后的再生过程。将MSC运用到功能性鼻内窥镜手术或鼻颅底外科手术产生的缺损中，可提高鼻黏膜的再生活性。目前MSC在鼻黏膜再生治疗方面仍处于探索阶段，本文就此作一综述，为将来临床上该方法的进一步研究和运用提供依据。.

Published
2020

6. DNA Methylation Differences in Soybean Hybrids and Their Parental Lines

Author

P. N. Wang, C. J. Lin, C. B. Zhang, L. M. Zhao, Z. R. Xu, Z. H. Chen, B. Peng, and X. Y. Ding

Subjects
0106 biological sciences, 0301 basic medicine, Zinc finger, Genetics, Heterosis, Plant Science, Methylation, Biology, 01 natural sciences, Genome, 03 medical and health sciences, chemistry.chemical_compound, 030104 developmental biology, chemistry, Polymorphism (computer science), DNA methylation, DNA, 010606 plant biology & botany, Hybrid
Abstract

To understand the methylation level and genetic delivery from parental line to their hybrid in soybean (Glycine max (L.) Merr.), four groups of parental lines and their hybrids were analyzed using methylation sensitive amplification polymorphism (MSAP). Comparisons of the different methylation distributions revealed. (1) The methylation level of the whole hybrid was lower than that of the corresponding parent lines, and the internal cytosine-methylation pattern was dominant. (2) In this study, comparing the total methylation levels in hybrids and the midparent values we assume that the larger differences in DNA methylation between parental lines lead to stronger heterosis. (3) Four demethylated and one hyper-methylated fragments were sequenced and located in the reference genome by blast analysis. These methylation changes could cause expression levels changes of a protein kinase, zinc finger protein and a mitochondrial transcript, which would affect a variety of metabolic pathways in soybean, providing an explanation for the observed heterosis.

Published
2018

10. Evaluation of airflow pattern in wind-driven naturally ventilated atrium buildings: measurement and simulation

Author

W. J. Wang, Zhengtao Ai, Z. R. Xu, X. Z. Gao, H. S. Wang, and Zhuo Li

Subjects
Engineering, Atrium (architecture), business.industry, Acoustics, Air exchange, Airflow, Building and Construction, Structural engineering, Wind direction, Computational fluid dynamics, Wind driven, Indoor air quality, Upper floor, business
Abstract

This article presents a study of airflow pattern inside a five-story wind-driven naturally ventilated atrium building. Firstly, field measurement conducted in the atrium building reveals the existence of reversed flows from the atrium to windows, which could cause air cross-contamination between floors during the period of an infectious disease outbreak. The computational fluid dynamics technique was then employed to further investigate the airflow pattern inside the building, under different wind directions and opening ratios. It is found that the airflow pattern inside a wind-driven naturally ventilated atrium building is very sensitive to the oncoming wind direction. Under parallel and perpendicular incident wind directions, the existence of adversely reversed flows in a certain floor and the re-entry of used air from an upper floor into its adjacent lower floors through the atrium results in the decrease of indoor air quality and the effective air exchange through windows. Nevertheless, the building has good natural ventilation performance under oblique incident wind direction, although the expected role of the atrium is still not fully achieved. In addition, the improvement of airflow pattern inside wind-driven naturally ventilated buildings cannot be achieved by simply modifying the opening ratios. Practical application: Considering the indoor airflow pattern could substantially influence the elimination efficiency of pollutants and overheated air, this study is expected to help designers and engineers who are considering the use of an atrium at the design stage to have a better understanding of the airflow pattern inside a wind-driven naturally ventilated atrium building.

Published
2013

11. Effects of oocyte collection techniques and maturation media on in vitro maturation and subsequent embryo development in Boer goat

Author

S D Yu, Z R Xu, and Z G Wang

Subjects
0301 basic medicine, Embryogenesis, 0402 animal and dairy science, Ovary, 04 agricultural and veterinary sciences, Biology, 040201 dairy & animal science, In vitro maturation, Andrology, 03 medical and health sciences, 030104 developmental biology, medicine.anatomical_structure, Epidermal growth factor, Oocyte Collection, medicine, Boer goat, Animal Science and Zoology, Oocyte recovery
Abstract

The oocytes (experiment 1) were harvested by one of the four collection techniques (slicing, punc - ture, aspiration I and aspiration II) and the total number and the number of each grade of oocytes were counted, respectively. The good-quality oocytes (good and fair grade) were cultured for maturation. In experiment 2, the oocytes were matured in TCM-199 supplemented with 10 ng/ml of epidermal growth factor (EGF) or 10% FCS, either alone or with 1 IU/ml FSH, or the oocytes were matured in TCM-199 supplemented with 1 IU/ml FSH. After maturation, the oocytes in the two experiments were fertilized, respectively. Slicing (6.3) and puncture (5.8) of the ovaries yielded a higher ( < 0.05) number of oocytes per ovary compared to aspiration I (2.9) and aspiration II (3.1). Oocytes matured in the TCM-199 medium supplemented with EGF or FCS with FSH had a significantly higher proportion of blastocysts than the other treatments ( P < 0.05). In conclusion, slicing and puncture are alternative techniques of oocyte recovery in Boer goat. The TCM-199 medium supplemented with EGF or FCS in the presence of FSH is suitable for in vitro maturation of oocytes.

Published
2007

12. Study of $J/ψ\to p\bar{p}$ and $J/ψ\to n\bar{n}$

Author

BESIII Collaboration, M. Ablikim(Institute of High Energy Physics, Beijing, P. R. China), M. N. Achasov(G.I. Budker Institute of Nuclear Physics SB RAS), D. J. Ambrose(University of Rochester, Rochester, New York, USA), F. F. An(Institute of High Energy Physics, Beijing, P. R. China), Q. An(University of Science and Technology of China, Hefei, P. R. China), Z. H. An(Institute of High Energy Physics, Beijing, P. R. China), J. Z. Bai(Institute of High Energy Physics, Beijing, P. R. China), R. B. Ferroli(INFN Laboratori Nazionali di Frascati, Frascati, Italy), Y. Ban(Peking University, Beijing, P. R. China), J. Becker(Bochum Ruhr-University, Bochum, Germany), N. Berger(Institute of High Energy Physics, Beijing, P. R. China), M. B. Bertani(INFN Laboratori Nazionali di Frascati, Frascati, Italy), J. M. Bian(University of Minnesota, Minneapolis, MN, USA), E. Boger(20, a), O. Bondarenko(KVI/University of Groningen, Groningen, The Netherlands), I. Boyko(Joint Institute for Nuclear Research, Dubna, Russia), R. A. Briere(Carnegie Mellon University, Pittsburgh, PA, USA), V. Bytev(Joint Institute for Nuclear Research, Dubna, Russia), X. Cai(Institute of High Energy Physics, Beijing, P. R. China), A. C. Calcaterra(INFN Laboratori Nazionali di Frascati, Frascati, Italy), G. F. Cao(Institute of High Energy Physics, Beijing, P. R. China), J. F. Chang(Institute of High Energy Physics, Beijing, P. R. China), G. Chelkov(20, a), G. Chen(Institute of High Energy Physics, Beijing, P. R. China), H. S. Chen(Institute of High Energy Physics, Beijing, P. R. China), J. C. Chen(Institute of High Energy Physics, Beijing, P. R. China), M. L. Chen(Institute of High Energy Physics, Beijing, P. R. China), S. J. Chen(Nanjing University, Nanjing, P. R. China), Y. Chen(Institute of High Energy Physics, Beijing, P. R. China), Y. B. Chen(Institute of High Energy Physics, Beijing, P. R. China), H. P. Cheng(Huangshan College, Huangshan, P. R. China), Y. P. Chu(Institute of High Energy Physics, Beijing, P. R. China), D. Cronin-Hennessy(University of Minnesota, Minneapolis, MN, USA), H. L. Dai(Institute of High Energy Physics, Beijing, P. R. China), J. P. Dai(Institute of High Energy Physics, Beijing, P. R. China), D. Dedovich(Joint Institute for Nuclear Research, Dubna, Russia), Z. Y. Deng(Institute of High Energy Physics, Beijing, P. R. China), A. Denig(Johannes Gutenberg University of Mainz, Mainz, Germany), I. Denysenko(20, b), M. Destefanis(University of Turin and INFN, Turin, Italy), W. M. Ding(Shandong University, Jinan, P. R. China), Y. Ding(Liaoning University, Shenyang, P. R. China), L. Y. Dong(Institute of High Energy Physics, Beijing, P. R. China), M. Y. Dong(Institute of High Energy Physics, Beijing, P. R. China), S. X. Du(Zhengzhou University, Zhengzhou, P. R. China), J. Fang(Institute of High Energy Physics, Beijing, P. R. China), S. S. Fang(Institute of High Energy Physics, Beijing, P. R. China), L. Fava(44, c), F. Feldbauer(Bochum Ruhr-University, Bochum, Germany), C. Q. Feng(University of Science and Technology of China, Hefei, P. R. China), C. D. Fu(Institute of High Energy Physics, Beijing, P. R. China), J. L. Fu(Nanjing University, Nanjing, P. R. China), Y. Gao(Tsinghua University, Beijing, P. R. China), C. Geng(University of Science and Technology of China, Hefei, P. R. China), K. Goetzen(GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany), W. X. Gong(Institute of High Energy Physics, Beijing, P. R. China), W. Gradl(Johannes Gutenberg University of Mainz, Mainz, Germany), M. Greco(University of Turin and INFN, Turin, Italy), M. H. Gu(Institute of High Energy Physics, Beijing, P. R. China), Y. T. Gu(GuangXi University, Nanning, P.R.China), Y. H. Guan(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), A. Q. Guo(Nankai University, Tianjin, P. R. China), L. B. Guo(Nanjing Normal University, Nanjing, P. R. China), Y. P. Guo(Nankai University, Tianjin, P. R. China), Y. L. Han(Institute of High Energy Physics, Beijing, P. R. China), X. Q. Hao(Institute of High Energy Physics, Beijing, P. R. China), F. A. Harris(University of Hawaii, Honolulu, Hawaii, USA), K. L. He(Institute of High Energy Physics, Beijing, P. R. China), M. He(Institute of High Energy Physics, Beijing, P. R. China), Z. Y. He(Nankai University, Tianjin, P. R. China), T. Held(Bochum Ruhr-University, Bochum, Germany), Y. K. Heng(Institute of High Energy Physics, Beijing, P. R. China), Z. L. Hou(Institute of High Energy Physics, Beijing, P. R. China), H. M. Hu(Institute of High Energy Physics, Beijing, P. R. China), J. F. Hu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), T. Hu(Institute of High Energy Physics, Beijing, P. R. China), B. Huang(Institute of High Energy Physics, Beijing, P. R. China), G. M. Huang(Huazhong Normal University, Wuhan, P. R. China), J. S. Huang(Henan Normal University, Xinxiang, P. R. China), X. T. Huang(Shandong University, Jinan, P. R. China), Y. P. Huang(Institute of High Energy Physics, Beijing, P. R. China), T. Hussain(University of the Punjab, Lahore, Pakistan), C. S. Ji(University of Science and Technology of China, Hefei, P. R. China), Q. Ji(Institute of High Energy Physics, Beijing, P. R. China), X. B. Ji(Institute of High Energy Physics, Beijing, P. R. China), X. L. Ji(Institute of High Energy Physics, Beijing, P. R. China), L. K. Jia(Institute of High Energy Physics, Beijing, P. R. China), L. L. Jiang(Institute of High Energy Physics, Beijing, P. R. China), X. S. Jiang(Institute of High Energy Physics, Beijing, P. R. China), J. B. Jiao(Shandong University, Jinan, P. R. China), Z. Jiao(Huangshan College, Huangshan, P. R. China), D. P. Jin(Institute of High Energy Physics, Beijing, P. R. China), S. Jin(Institute of High Energy Physics, Beijing, P. R. China), F. F. Jing(Tsinghua University, Beijing, P. R. China), N. Kalantar-Nayestanaki(KVI/University of Groningen, Groningen, The Netherlands), M. Kavatsyuk(KVI/University of Groningen, Groningen, The Netherlands), W. Kuehn(Universitaet Giessen, Giessen, Germany), W. Lai(Institute of High Energy Physics, Beijing, P. R. China), J. S. Lange(Universitaet Giessen, Giessen, Germany), J. K. C. Leung(The University of Hong Kong, Pokfulam, Hong Kong), C. H. Li(Institute of High Energy Physics, Beijing, P. R. China), Cheng Li(University of Science and Technology of China, Hefei, P. R. China), Cui Li(University of Science and Technology of China, Hefei, P. R. China), D. M. Li(Zhengzhou University, Zhengzhou, P. R. China), F. Li(Institute of High Energy Physics, Beijing, P. R. China), G. Li(Institute of High Energy Physics, Beijing, P. R. China), H. B. Li(Institute of High Energy Physics, Beijing, P. R. China), J. C. Li(Institute of High Energy Physics, Beijing, P. R. China), K. Li(Hangzhou Normal University, Hangzhou, P. R. China), Lei Li(Institute of High Energy Physics, Beijing, P. R. China), N. B. Li(Nanjing Normal University, Nanjing, P. R. China), Q. J. Li(Institute of High Energy Physics, Beijing, P. R. China), S. L. Li(Institute of High Energy Physics, Beijing, P. R. China), W. D. Li(Institute of High Energy Physics, Beijing, P. R. China), W. G. Li(Institute of High Energy Physics, Beijing, P. R. China), X. L. Li(Shandong University, Jinan, P. R. China), X. N. Li(Institute of High Energy Physics, Beijing, P. R. China), X. Q. Li(Nankai University, Tianjin, P. R. China), X. R. Li(Seoul National University, Seoul, Korea), Z. B. Li(Sun Yat-Sen University, Guangzhou, P. R. China), H. Liang(University of Science and Technology of China, Hefei, P. R. China), Y. F. Liang(Sichuan University, Chengdu, P. R. China), Y. T. Liang(Universitaet Giessen, Giessen, Germany), G. R. Liao(Tsinghua University, Beijing, P. R. China), X. T. Liao(Institute of High Energy Physics, Beijing, P. R. China), B. J. Liu(Institute of High Energy Physics, Beijing, P. R. China), C. L. Liu(Carnegie Mellon University, Pittsburgh, PA, USA), C. X. Liu(Institute of High Energy Physics, Beijing, P. R. China), C. Y. Liu(Institute of High Energy Physics, Beijing, P. R. China), F. H. Liu(Shanxi University, Taiyuan, P. R. China), Fang Liu(Institute of High Energy Physics, Beijing, P. R. China), Feng Liu(Huazhong Normal University, Wuhan, P. R. China), H. Liu(Shanxi University, Taiyuan, P. R. China), H. B. Liu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), H. H. Liu(Henan University of Science and Technology, Luoyang, P. R. China), H. M. Liu(Institute of High Energy Physics, Beijing, P. R. China), H. W. Liu(Institute of High Energy Physics, Beijing, P. R. China), J. P. Liu(Wuhan University, Wuhan, P. R. China), Kun Liu(Peking University, Beijing, P. R. China), Kai Liu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), K. Y. Liu(Liaoning University, Shenyang, P. R. China), P. L. Liu(Shandong University, Jinan, P. R. China), S. B. Liu(University of Science and Technology of China, Hefei, P. R. China), X. Liu(Institute of High Energy Physics, Beijing, P. R. China), X. H. Liu(Institute of High Energy Physics, Beijing, P. R. China), Y. B. Liu(Nankai University, Tianjin, P. R. China), Y. Liu(Institute of High Energy Physics, Beijing, P. R. China), Z. A. Liu(Institute of High Energy Physics, Beijing, P. R. China), Zhiqiang Liu(Institute of High Energy Physics, Beijing, P. R. China), Zhiqing Liu(Institute of High Energy Physics, Beijing, P. R. China), H. Loehner(KVI/University of Groningen, Groningen, The Netherlands), G. R. Lu(Henan Normal University, Xinxiang, P. R. China), H. J. Lu(Huangshan College, Huangshan, P. R. China), J. G. Lu(Institute of High Energy Physics, Beijing, P. R. China), Q. W. Lu(Shanxi University, Taiyuan, P. R. China), X. R. Lu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), Y. P. Lu(Institute of High Energy Physics, Beijing, P. R. China), C. L. Luo(Nanjing Normal University, Nanjing, P. R. China), M. X. Luo(Zhejiang University, Hangzhou, P. R. China), T. Luo(University of Hawaii, Honolulu, Hawaii, USA), X. L. Luo(Institute of High Energy Physics, Beijing, P. R. China), M. Lv(Institute of High Energy Physics, Beijing, P. R. China), C. L. Ma(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), F. C. Ma(Liaoning University, Shenyang, P. R. China), H. L. Ma(Institute of High Energy Physics, Beijing, P. R. China), Q. M. Ma(Institute of High Energy Physics, Beijing, P. R. China), S. Ma(Institute of High Energy Physics, Beijing, P. R. China), T. Ma(Institute of High Energy Physics, Beijing, P. R. China), X. Y. Ma(Institute of High Energy Physics, Beijing, P. R. China), Y. Ma(Institute of High Energy Physics, Beijing, P. R. China), F. E. Maas(Helmholtz Institute Mainz, Mainz, Germany), M. Maggiora(University of Turin and INFN, Turin, Italy), Q. A. Malik(University of the Punjab, Lahore, Pakistan), H. Mao(Institute of High Energy Physics, Beijing, P. R. China), Y. J. Mao(Peking University, Beijing, P. R. China), Z. P. Mao(Institute of High Energy Physics, Beijing, P. R. China), J. G. Messchendorp(KVI/University of Groningen, Groningen, The Netherlands), J. Min(Institute of High Energy Physics, Beijing, P. R. China), T. J. Min(Institute of High Energy Physics, Beijing, P. R. China), R. E. Mitchell(Indiana University, Bloomington, Indiana, USA), X. H. Mo(Institute of High Energy Physics, Beijing, P. R. China), C. Morales Morales(Helmholtz Institute Mainz, Mainz, Germany), C. Motzko(Bochum Ruhr-University, Bochum, Germany), N. Yu. Muchnoi(G.I. Budker Institute of Nuclear Physics SB RAS), Y. Nefedov(Joint Institute for Nuclear Research, Dubna, Russia), C. Nicholson(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), I. B. Nikolaev(G.I. Budker Institute of Nuclear Physics SB RAS), Z. Ning(Institute of High Energy Physics, Beijing, P. R. China), S. L. Olsen(Seoul National University, Seoul, Korea), Q. Ouyang(Institute of High Energy Physics, Beijing, P. R. China), S. P. Pacetti(18, d), J. W. Park(Seoul National University, Seoul, Korea), M. Pelizaeus(University of Hawaii, Honolulu, Hawaii, USA), K. Peters(GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany), J. L. Ping(Nanjing Normal University, Nanjing, P. R. China), R. G. Ping(Institute of High Energy Physics, Beijing, P. R. China), R. Poling(University of Minnesota, Minneapolis, MN, USA), E. Prencipe(Johannes Gutenberg University of Mainz, Mainz, Germany), C. S. J. Pun(The University of Hong Kong, Pokfulam, Hong Kong), M. Qi(Nanjing University, Nanjing, P. R. China), S. Qian(Institute of High Energy Physics, Beijing, P. R. China), C. F. Qiao(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), X. S. Qin(Institute of High Energy Physics, Beijing, P. R. China), Y. Qin(Peking University, Beijing, P. R. China), Z. H. Qin(Institute of High Energy Physics, Beijing, P. R. China), J. F. Qiu(Institute of High Energy Physics, Beijing, P. R. China), K. H. Rashid(University of the Punjab, Lahore, Pakistan), G. Rong(Institute of High Energy Physics, Beijing, P. R. China), X. D. Ruan(GuangXi University, Nanning, P.R.China), A. Sarantsev(20, e), J. Schulze(Bochum Ruhr-University, Bochum, Germany), M. Shao(University of Science and Technology of China, Hefei, P. R. China), C. P. Shen(38, f), X. Y. Shen(Institute of High Energy Physics, Beijing, P. R. China), H. Y. Sheng(Institute of High Energy Physics, Beijing, P. R. China), M. R. Shepherd(Indiana University, Bloomington, Indiana, USA), X. Y. Song(Institute of High Energy Physics, Beijing, P. R. China), S. Spataro(University of Turin and INFN, Turin, Italy), B. Spruck(Universitaet Giessen, Giessen, Germany), D. H. Sun(Institute of High Energy Physics, Beijing, P. R. China), G. X. Sun(Institute of High Energy Physics, Beijing, P. R. China), J. F. Sun(Henan Normal University, Xinxiang, P. R. China), S. S. Sun(Institute of High Energy Physics, Beijing, P. R. China), X. D. Sun(Institute of High Energy Physics, Beijing, P. R. China), Y. J. Sun(University of Science and Technology of China, Hefei, P. R. China), Y. Z. Sun(Institute of High Energy Physics, Beijing, P. R. China), Z. J. Sun(Institute of High Energy Physics, Beijing, P. R. China), Z. T. Sun(University of Science and Technology of China, Hefei, P. R. China), C. J. Tang(Sichuan University, Chengdu, P. R. China), X. Tang(Institute of High Energy Physics, Beijing, P. R. China), E. H. Thorndike(University of Rochester, Rochester, New York, USA), H. L. Tian(Institute of High Energy Physics, Beijing, P. R. China), D. Toth(University of Minnesota, Minneapolis, MN, USA), M. U. Ulrich(Universitaet Giessen, Giessen, Germany), G. S. Varner(University of Hawaii, Honolulu, Hawaii, USA), B. Wang(GuangXi University, Nanning, P.R.China), B. Q. Wang(Peking University, Beijing, P. R. China), K. Wang(Institute of High Energy Physics, Beijing, P. R. China), L. L. Wang(China Center of Advanced Science and Technology, Beijing, P. R. China), L. S. Wang(Institute of High Energy Physics, Beijing, P. R. China), M. Wang(Shandong University, Jinan, P. R. China), P. Wang(Institute of High Energy Physics, Beijing, P. R. China), P. L. Wang(Institute of High Energy Physics, Beijing, P. R. China), Q. Wang(Peking University, Beijing, P. R. China), Q. J. Wang(Institute of High Energy Physics, Beijing, P. R. China), S. G. Wang(Peking University, Beijing, P. R. China), X. F. Wang(Henan Normal University, Xinxiang, P. R. China), X. L. Wang(University of Science and Technology of China, Hefei, P. R. China), Y. D. Wang(University of Science and Technology of China, Hefei, P. R. China), Y. F. Wang(Institute of High Energy Physics, Beijing, P. R. China), Y. Q. Wang(Shandong University, Jinan, P. R. China), Z. Wang(Institute of High Energy Physics, Beijing, P. R. China), Z. G. Wang(Institute of High Energy Physics, Beijing, P. R. China), Z. Y. Wang(Institute of High Energy Physics, Beijing, P. R. China), D. H. Wei(Guangxi Normal University, Guilin, P. R. China), P. Weidenkaff(Johannes Gutenberg University of Mainz, Mainz, Germany), Q. G. Wen(University of Science and Technology of China, Hefei, P. R. China), S. P. Wen(Institute of High Energy Physics, Beijing, P. R. China), M. W. Werner(Universitaet Giessen, Giessen, Germany), U. Wiedner(Bochum Ruhr-University, Bochum, Germany), L. H. Wu(Institute of High Energy Physics, Beijing, P. R. China), N. Wu(Institute of High Energy Physics, Beijing, P. R. China), S. X. Wu(University of Science and Technology of China, Hefei, P. R. China), W. Wu(Nankai University, Tianjin, P. R. China), Z. Wu(Institute of High Energy Physics, Beijing, P. R. China), L. G. Xia(Tsinghua University, Beijing, P. R. China), Z. J. Xiao(Nanjing Normal University, Nanjing, P. R. China), Y. G. Xie(Institute of High Energy Physics, Beijing, P. R. China), Q. L. Xiu(Institute of High Energy Physics, Beijing, P. R. China), G. F. Xu(Institute of High Energy Physics, Beijing, P. R. China), G. M. Xu(Peking University, Beijing, P. R. China), H. Xu(Institute of High Energy Physics, Beijing, P. R. China), Q. J. Xu(Hangzhou Normal University, Hangzhou, P. R. China), X. P. Xu(Soochow University, Suzhou, China), Y. Xu(Nankai University, Tianjin, P. R. China), Z. R. Xu(University of Science and Technology of China, Hefei, P. R. China), F. Xue(Huazhong Normal University, Wuhan, P. R. China), Z. Xue(Institute of High Energy Physics, Beijing, P. R. China), L. Yan(University of Science and Technology of China, Hefei, P. R. China), W. B. Yan(University of Science and Technology of China, Hefei, P. R. China), Y. H. Yan(Hunan University, Changsha, P. R. China), H. X. Yang(Institute of High Energy Physics, Beijing, P. R. China), T. Yang(GuangXi University, Nanning, P.R.China), Y. Yang(Huazhong Normal University, Wuhan, P. R. China), Y. X. Yang(Guangxi Normal University, Guilin, P. R. China), H. Ye(Institute of High Energy Physics, Beijing, P. R. China), M. Ye(Institute of High Energy Physics, Beijing, P. R. China), M. H. Ye(China Center of Advanced Science and Technology, Beijing, P. R. China), B. X. Yu(Institute of High Energy Physics, Beijing, P. R. China), C. X. Yu(Nankai University, Tianjin, P. R. China), J. S. Yu(Lanzhou University, Lanzhou, P. R. China), S. P. Yu(Shandong University, Jinan, P. R. China), C. Z. Yuan(Institute of High Energy Physics, Beijing, P. R. China), W. L. Yuan(Nanjing Normal University, Nanjing, P. R. China), Y. Yuan(Institute of High Energy Physics, Beijing, P. R. China), A. A. Zafar(University of the Punjab, Lahore, Pakistan), A. Z. Zallo(INFN Laboratori Nazionali di Frascati, Frascati, Italy), Y. Zeng(Hunan University, Changsha, P. R. China), B. X. Zhang(Institute of High Energy Physics, Beijing, P. R. China), B. Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), C. C. Zhang(Institute of High Energy Physics, Beijing, P. R. China), D. H. Zhang(Institute of High Energy Physics, Beijing, P. R. China), H. H. Zhang(Sun Yat-Sen University, Guangzhou, P. R. China), H. Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. Zhang(Nanjing Normal University, Nanjing, P. R. China), J. G. Zhang(Henan Normal University, Xinxiang, P. R. China), J. Q. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. W. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. Z. Zhang(Institute of High Energy Physics, Beijing, P. R. China), L. Zhang(Nanjing University, Nanjing, P. R. China), S. H. Zhang(Institute of High Energy Physics, Beijing, P. R. China), T. R. Zhang(Nanjing Normal University, Nanjing, P. R. China), X. J. Zhang(Institute of High Energy Physics, Beijing, P. R. China), X. Y. Zhang(Shandong University, Jinan, P. R. China), Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), Y. H. Zhang(Institute of High Energy Physics, Beijing, P. R. China), Y. S. Zhang(GuangXi University, Nanning, P.R.China), Z. P. Zhang(University of Science and Technology of China, Hefei, P. R. China), Z. Y. Zhang(Wuhan University, Wuhan, P. R. China), G. Zhao(Institute of High Energy Physics, Beijing, P. R. China), H. S. Zhao(Institute of High Energy Physics, Beijing, P. R. China), J. W. Zhao(Institute of High Energy Physics, Beijing, P. R. China), K. X. Zhao(Nanjing Normal University, Nanjing, P. R. China), Lei Zhao(University of Science and Technology of China, Hefei, P. R. China), Ling Zhao(Institute of High Energy Physics, Beijing, P. R. China), M. G. Zhao(Nankai University, Tianjin, P. R. China), Q. Zhao(Institute of High Energy Physics, Beijing, P. R. China), S. J. Zhao(Zhengzhou University, Zhengzhou, P. R. China), T. C. Zhao(Institute of High Energy Physics, Beijing, P. R. China), X. H. Zhao(Nanjing University, Nanjing, P. R. China), Y. B. Zhao(Institute of High Energy Physics, Beijing, P. R. China), Z. G. Zhao(University of Science and Technology of China, Hefei, P. R. China), A. Zhemchugov(20, a), B. Zheng(University of South China, Hengyang, P. R. China), J. P. Zheng(Institute of High Energy Physics, Beijing, P. R. China), Y. H. Zheng(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), Z. P. Zheng(Institute of High Energy Physics, Beijing, P. R. China), B. Zhong(Institute of High Energy Physics, Beijing, P. R. China), J. Zhong(Bochum Ruhr-University, Bochum, Germany), L. Zhou(Institute of High Energy Physics, Beijing, P. R. China), X. K. Zhou(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), X. R. Zhou(University of Science and Technology of China, Hefei, P. R. China), C. Zhu(Institute of High Energy Physics, Beijing, P. R. China), K. Zhu(Institute of High Energy Physics, Beijing, P. R. China), K. J. Zhu(Institute of High Energy Physics, Beijing, P. R. China), S. H. Zhu(Institute of High Energy Physics, Beijing, P. R. China), X. L. Zhu(Tsinghua University, Beijing, P. R. China), X. W. Zhu(Institute of High Energy Physics, Beijing, P. R. China), Y. M. Zhu(Nankai University, Tianjin, P. R. China), Y. S. Zhu(Institute of High Energy Physics, Beijing, P. R. China), Z. A. Zhu(Institute of High Energy Physics, Beijing, P. R. China), J. Zhuang(Institute of High Energy Physics, Beijing, P. R. China), B. S. Zou(Institute of High Energy Physics, Beijing, P. R. China), J. H. Zou(Institute of High Energy Physics, Beijing, P. R. China), and J. X. Zuo(Institute of High Energy Physics, Beijing, P. R. China)

Subjects
hep-ex, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

The decays $J/\psi\to p\bar{p}$ and $J/\psi\to n\bar{n}$ have been investigated with a sample of 225.2 million $J/\psi$ events collected with the BESIII detector at the BEPCII $e^+e^-$ collider. The branching fractions are determined to be $\mathcal{B}(J/\psi\to p\bar{p})=(2.112\pm0.004\pm0.031)\times10^{-3}$ and $\mathcal{B}(J/\psi\to n\bar{n})=(2.07\pm0.01\pm0.17)\times10^{-3}$. Distributions of the angle $\theta$ between the proton or anti-neutron and the beam direction are well described by the form $1+\alpha\cos^2\theta$, and we find $\alpha=0.595\pm0.012\pm0.015$ for $J/\psi\to p\bar{p}$ and $\alpha=0.50\pm0.04\pm0.21$ for $J/\psi\to n\bar{n}$. Our branching-fraction results suggest a large phase angle between the strong and electromagnetic amplitudes describing the $J/\psi\to N\bar{N}$ decay.

Published
2015

13. Two-photon widths of the $χ_{c0, 2}$ states and helicity analysis for $χ_{c2}\arγγ$}

Author

BESIII Collaboration, M. Ablikim(Institute of High Energy Physics, Beijing, P. R. China), M. N. Achasov(G.I. Budker Institute of Nuclear Physics SB RAS), D. J. Ambrose(University of Rochester, Rochester, New York, USA), F. F. An(Institute of High Energy Physics, Beijing, P. R. China), Q. An(University of Science and Technology of China, Hefei, P. R. China), Z. H. An(Institute of High Energy Physics, Beijing, P. R. China), J. Z. Bai(Institute of High Energy Physics, Beijing, P. R. China), R. B. Ferroli(INFN Laboratori Nazionali di Frascati, Frascati, Italy), Y. Ban(Peking University, Beijing, P. R. China), J. Becker(Bochum Ruhr-University, Bochum, Germany), N. Berger(Institute of High Energy Physics, Beijing, P. R. China), M. B. Bertani(INFN Laboratori Nazionali di Frascati, Frascati, Italy), J. M. Bian(University of Minnesota, Minneapolis, MN, USA), E. Boger(20, a), O. Bondarenko(KVI/University of Groningen, Groningen, The Netherlands), I. Boyko(Joint Institute for Nuclear Research, Dubna, Russia), R. A. Briere(Carnegie Mellon University, Pittsburgh, PA, USA), V. Bytev(Joint Institute for Nuclear Research, Dubna, Russia), X. Cai(Institute of High Energy Physics, Beijing, P. R. China), A. C. Calcaterra(INFN Laboratori Nazionali di Frascati, Frascati, Italy), G. F. Cao(Institute of High Energy Physics, Beijing, P. R. China), J. F. Chang(Institute of High Energy Physics, Beijing, P. R. China), G. Chelkov(20, a), G. Chen(Institute of High Energy Physics, Beijing, P. R. China), H. S. Chen(Institute of High Energy Physics, Beijing, P. R. China), J. C. Chen(Institute of High Energy Physics, Beijing, P. R. China), M. L. Chen(Institute of High Energy Physics, Beijing, P. R. China), S. J. Chen(Nanjing University, Nanjing, P. R. China), Y. Chen(Institute of High Energy Physics, Beijing, P. R. China), Y. B. Chen(Institute of High Energy Physics, Beijing, P. R. China), H. P. Cheng(Huangshan College, Huangshan, P. R. China), Y. P. Chu(Institute of High Energy Physics, Beijing, P. R. China), D. Cronin-Hennessy(University of Minnesota, Minneapolis, MN, USA), H. L. Dai(Institute of High Energy Physics, Beijing, P. R. China), J. P. Dai(Institute of High Energy Physics, Beijing, P. R. China), D. Dedovich(Joint Institute for Nuclear Research, Dubna, Russia), Z. Y. Deng(Institute of High Energy Physics, Beijing, P. R. China), A. Denig(Johannes Gutenberg University of Mainz, Mainz, Germany), I. Denysenko(20, b), M. Destefanis(University of Turin and INFN, Turin, Italy), W. M. Ding(Shandong University, Jinan, P. R. China), Y. Ding(Liaoning University, Shenyang, P. R. China), L. Y. Dong(Institute of High Energy Physics, Beijing, P. R. China), M. Y. Dong(Institute of High Energy Physics, Beijing, P. R. China), S. X. Du(Zhengzhou University, Zhengzhou, P. R. China), J. Fang(Institute of High Energy Physics, Beijing, P. R. China), S. S. Fang(Institute of High Energy Physics, Beijing, P. R. China), L. Fava(44, c), F. Feldbauer(Bochum Ruhr-University, Bochum, Germany), C. Q. Feng(University of Science and Technology of China, Hefei, P. R. China), C. D. Fu(Institute of High Energy Physics, Beijing, P. R. China), J. L. Fu(Nanjing University, Nanjing, P. R. China), Y. Gao(Tsinghua University, Beijing, P. R. China), C. Geng(University of Science and Technology of China, Hefei, P. R. China), K. Goetzen(GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany), W. X. Gong(Institute of High Energy Physics, Beijing, P. R. China), W. Gradl(Johannes Gutenberg University of Mainz, Mainz, Germany), M. Greco(University of Turin and INFN, Turin, Italy), M. H. Gu(Institute of High Energy Physics, Beijing, P. R. China), Y. T. Gu(GuangXi University, Nanning, P.R.China), Y. H. Guan(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), A. Q. Guo(Nankai University, Tianjin, P. R. China), L. B. Guo(Nanjing Normal University, Nanjing, P. R. China), Y. P. Guo(Nankai University, Tianjin, P. R. China), Y. L. Han(Institute of High Energy Physics, Beijing, P. R. China), X. Q. Hao(Institute of High Energy Physics, Beijing, P. R. China), F. A. Harris(University of Hawaii, Honolulu, Hawaii, USA), K. L. He(Institute of High Energy Physics, Beijing, P. R. China), M. He(Institute of High Energy Physics, Beijing, P. R. China), Z. Y. He(Nankai University, Tianjin, P. R. China), T. Held(Bochum Ruhr-University, Bochum, Germany), Y. K. Heng(Institute of High Energy Physics, Beijing, P. R. China), Z. L. Hou(Institute of High Energy Physics, Beijing, P. R. China), H. M. Hu(Institute of High Energy Physics, Beijing, P. R. China), J. F. Hu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), T. Hu(Institute of High Energy Physics, Beijing, P. R. China), B. Huang(Institute of High Energy Physics, Beijing, P. R. China), G. M. Huang(Huazhong Normal University, Wuhan, P. R. China), J. S. Huang(Henan Normal University, Xinxiang, P. R. China), X. T. Huang(Shandong University, Jinan, P. R. China), Y. P. Huang(Institute of High Energy Physics, Beijing, P. R. China), T. Hussain(University of the Punjab, Lahore, Pakistan), C. S. Ji(University of Science and Technology of China, Hefei, P. R. China), Q. Ji(Institute of High Energy Physics, Beijing, P. R. China), X. B. Ji(Institute of High Energy Physics, Beijing, P. R. China), X. L. Ji(Institute of High Energy Physics, Beijing, P. R. China), L. K. Jia(Institute of High Energy Physics, Beijing, P. R. China), L. L. Jiang(Institute of High Energy Physics, Beijing, P. R. China), X. S. Jiang(Institute of High Energy Physics, Beijing, P. R. China), J. B. Jiao(Shandong University, Jinan, P. R. China), Z. Jiao(Huangshan College, Huangshan, P. R. China), D. P. Jin(Institute of High Energy Physics, Beijing, P. R. China), S. Jin(Institute of High Energy Physics, Beijing, P. R. China), F. F. Jing(Tsinghua University, Beijing, P. R. China), N. Kalantar-Nayestanaki(KVI/University of Groningen, Groningen, The Netherlands), M. Kavatsyuk(KVI/University of Groningen, Groningen, The Netherlands), W. Kuehn(Universitaet Giessen, Giessen, Germany), W. Lai(Institute of High Energy Physics, Beijing, P. R. China), J. S. Lange(Universitaet Giessen, Giessen, Germany), J. K. C. Leung(The University of Hong Kong, Pokfulam, Hong Kong), C. H. Li(Institute of High Energy Physics, Beijing, P. R. China), Cheng Li(University of Science and Technology of China, Hefei, P. R. China), Cui Li(University of Science and Technology of China, Hefei, P. R. China), D. M. Li(Zhengzhou University, Zhengzhou, P. R. China), F. Li(Institute of High Energy Physics, Beijing, P. R. China), G. Li(Institute of High Energy Physics, Beijing, P. R. China), H. B. Li(Institute of High Energy Physics, Beijing, P. R. China), J. C. Li(Institute of High Energy Physics, Beijing, P. R. China), K. Li(Hangzhou Normal University, Hangzhou, P. R. China), Lei Li(Institute of High Energy Physics, Beijing, P. R. China), N. B. Li(Nanjing Normal University, Nanjing, P. R. China), Q. J. Li(Institute of High Energy Physics, Beijing, P. R. China), S. L. Li(Institute of High Energy Physics, Beijing, P. R. China), W. D. Li(Institute of High Energy Physics, Beijing, P. R. China), W. G. Li(Institute of High Energy Physics, Beijing, P. R. China), X. L. Li(Shandong University, Jinan, P. R. China), X. N. Li(Institute of High Energy Physics, Beijing, P. R. China), X. Q. Li(Nankai University, Tianjin, P. R. China), X. R. Li(Seoul National University, Seoul, Korea), Z. B. Li(Sun Yat-Sen University, Guangzhou, P. R. China), H. Liang(University of Science and Technology of China, Hefei, P. R. China), Y. F. Liang(Sichuan University, Chengdu, P. R. China), Y. T. Liang(Universitaet Giessen, Giessen, Germany), G. R. Liao(Tsinghua University, Beijing, P. R. China), X. T. Liao(Institute of High Energy Physics, Beijing, P. R. China), B. J. Liu(Institute of High Energy Physics, Beijing, P. R. China), C. L. Liu(Carnegie Mellon University, Pittsburgh, PA, USA), C. X. Liu(Institute of High Energy Physics, Beijing, P. R. China), C. Y. Liu(Institute of High Energy Physics, Beijing, P. R. China), F. H. Liu(Shanxi University, Taiyuan, P. R. China), Fang Liu(Institute of High Energy Physics, Beijing, P. R. China), Feng Liu(Huazhong Normal University, Wuhan, P. R. China), H. Liu(Shanxi University, Taiyuan, P. R. China), H. B. Liu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), H. H. Liu(Henan University of Science and Technology, Luoyang, P. R. China), H. M. Liu(Institute of High Energy Physics, Beijing, P. R. China), H. W. Liu(Institute of High Energy Physics, Beijing, P. R. China), J. P. Liu(Wuhan University, Wuhan, P. R. China), Kun Liu(Peking University, Beijing, P. R. China), Kai Liu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), K. Y. Liu(Liaoning University, Shenyang, P. R. China), P. L. Liu(Shandong University, Jinan, P. R. China), S. B. Liu(University of Science and Technology of China, Hefei, P. R. China), X. Liu(Institute of High Energy Physics, Beijing, P. R. China), X. H. Liu(Institute of High Energy Physics, Beijing, P. R. China), Y. B. Liu(Nankai University, Tianjin, P. R. China), Y. Liu(Institute of High Energy Physics, Beijing, P. R. China), Z. A. Liu(Institute of High Energy Physics, Beijing, P. R. China), Zhiqiang Liu(Institute of High Energy Physics, Beijing, P. R. China), Zhiqing Liu(Institute of High Energy Physics, Beijing, P. R. China), H. Loehner(KVI/University of Groningen, Groningen, The Netherlands), G. R. Lu(Henan Normal University, Xinxiang, P. R. China), H. J. Lu(Huangshan College, Huangshan, P. R. China), J. G. Lu(Institute of High Energy Physics, Beijing, P. R. China), Q. W. Lu(Shanxi University, Taiyuan, P. R. China), X. R. Lu(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), Y. P. Lu(Institute of High Energy Physics, Beijing, P. R. China), C. L. Luo(Nanjing Normal University, Nanjing, P. R. China), M. X. Luo(Zhejiang University, Hangzhou, P. R. China), T. Luo(University of Hawaii, Honolulu, Hawaii, USA), X. L. Luo(Institute of High Energy Physics, Beijing, P. R. China), M. Lv(Institute of High Energy Physics, Beijing, P. R. China), C. L. Ma(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), F. C. Ma(Liaoning University, Shenyang, P. R. China), H. L. Ma(Institute of High Energy Physics, Beijing, P. R. China), Q. M. Ma(Institute of High Energy Physics, Beijing, P. R. China), S. Ma(Institute of High Energy Physics, Beijing, P. R. China), T. Ma(Institute of High Energy Physics, Beijing, P. R. China), X. Y. Ma(Institute of High Energy Physics, Beijing, P. R. China), Y. Ma(Institute of High Energy Physics, Beijing, P. R. China), F. E. Maas(Helmholtz Institute Mainz, Mainz, Germany), M. Maggiora(University of Turin and INFN, Turin, Italy), Q. A. Malik(University of the Punjab, Lahore, Pakistan), H. Mao(Institute of High Energy Physics, Beijing, P. R. China), Y. J. Mao(Peking University, Beijing, P. R. China), Z. P. Mao(Institute of High Energy Physics, Beijing, P. R. China), J. G. Messchendorp(KVI/University of Groningen, Groningen, The Netherlands), J. Min(Institute of High Energy Physics, Beijing, P. R. China), T. J. Min(Institute of High Energy Physics, Beijing, P. R. China), R. E. Mitchell(Indiana University, Bloomington, Indiana, USA), X. H. Mo(Institute of High Energy Physics, Beijing, P. R. China), C. Morales Morales(Helmholtz Institute Mainz, Mainz, Germany), C. Motzko(Bochum Ruhr-University, Bochum, Germany), N. Yu. Muchnoi(G.I. Budker Institute of Nuclear Physics SB RAS), Y. Nefedov(Joint Institute for Nuclear Research, Dubna, Russia), C. Nicholson(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), I. B. Nikolaev(G.I. Budker Institute of Nuclear Physics SB RAS), Z. Ning(Institute of High Energy Physics, Beijing, P. R. China), S. L. Olsen(Seoul National University, Seoul, Korea), Q. Ouyang(Institute of High Energy Physics, Beijing, P. R. China), S. P. Pacetti(18, d), J. W. Park(Seoul National University, Seoul, Korea), M. Pelizaeus(University of Hawaii, Honolulu, Hawaii, USA), K. Peters(GSI Helmholtzcentre for Heavy Ion Research GmbH, Darmstadt, Germany), J. L. Ping(Nanjing Normal University, Nanjing, P. R. China), R. G. Ping(Institute of High Energy Physics, Beijing, P. R. China), R. Poling(University of Minnesota, Minneapolis, MN, USA), E. Prencipe(Johannes Gutenberg University of Mainz, Mainz, Germany), C. S. J. Pun(The University of Hong Kong, Pokfulam, Hong Kong), M. Qi(Nanjing University, Nanjing, P. R. China), S. Qian(Institute of High Energy Physics, Beijing, P. R. China), C. F. Qiao(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), X. S. Qin(Institute of High Energy Physics, Beijing, P. R. China), Y. Qin(Peking University, Beijing, P. R. China), Z. H. Qin(Institute of High Energy Physics, Beijing, P. R. China), J. F. Qiu(Institute of High Energy Physics, Beijing, P. R. China), K. H. Rashid(University of the Punjab, Lahore, Pakistan), G. Rong(Institute of High Energy Physics, Beijing, P. R. China), X. D. Ruan(GuangXi University, Nanning, P.R.China), A. Sarantsev(20, e), J. Schulze(Bochum Ruhr-University, Bochum, Germany), M. Shao(University of Science and Technology of China, Hefei, P. R. China), C. P. Shen(38, f), X. Y. Shen(Institute of High Energy Physics, Beijing, P. R. China), H. Y. Sheng(Institute of High Energy Physics, Beijing, P. R. China), M. R. Shepherd(Indiana University, Bloomington, Indiana, USA), X. Y. Song(Institute of High Energy Physics, Beijing, P. R. China), S. Spataro(University of Turin and INFN, Turin, Italy), B. Spruck(Universitaet Giessen, Giessen, Germany), D. H. Sun(Institute of High Energy Physics, Beijing, P. R. China), G. X. Sun(Institute of High Energy Physics, Beijing, P. R. China), J. F. Sun(Henan Normal University, Xinxiang, P. R. China), S. S. Sun(Institute of High Energy Physics, Beijing, P. R. China), X. D. Sun(Institute of High Energy Physics, Beijing, P. R. China), Y. J. Sun(University of Science and Technology of China, Hefei, P. R. China), Y. Z. Sun(Institute of High Energy Physics, Beijing, P. R. China), Z. J. Sun(Institute of High Energy Physics, Beijing, P. R. China), Z. T. Sun(University of Science and Technology of China, Hefei, P. R. China), C. J. Tang(Sichuan University, Chengdu, P. R. China), X. Tang(Institute of High Energy Physics, Beijing, P. R. China), E. H. Thorndike(University of Rochester, Rochester, New York, USA), H. L. Tian(Institute of High Energy Physics, Beijing, P. R. China), D. Toth(University of Minnesota, Minneapolis, MN, USA), M. U. Ulrich(Universitaet Giessen, Giessen, Germany), G. S. Varner(University of Hawaii, Honolulu, Hawaii, USA), B. Wang(GuangXi University, Nanning, P.R.China), B. Q. Wang(Peking University, Beijing, P. R. China), K. Wang(Institute of High Energy Physics, Beijing, P. R. China), L. L. Wang(China Center of Advanced Science and Technology, Beijing, P. R. China), L. S. Wang(Institute of High Energy Physics, Beijing, P. R. China), M. Wang(Shandong University, Jinan, P. R. China), P. Wang(Institute of High Energy Physics, Beijing, P. R. China), P. L. Wang(Institute of High Energy Physics, Beijing, P. R. China), Q. Wang(Peking University, Beijing, P. R. China), Q. J. Wang(Institute of High Energy Physics, Beijing, P. R. China), S. G. Wang(Peking University, Beijing, P. R. China), X. F. Wang(Henan Normal University, Xinxiang, P. R. China), X. L. Wang(University of Science and Technology of China, Hefei, P. R. China), Y. D. Wang(University of Science and Technology of China, Hefei, P. R. China), Y. F. Wang(Institute of High Energy Physics, Beijing, P. R. China), Y. Q. Wang(Shandong University, Jinan, P. R. China), Z. Wang(Institute of High Energy Physics, Beijing, P. R. China), Z. G. Wang(Institute of High Energy Physics, Beijing, P. R. China), Z. Y. Wang(Institute of High Energy Physics, Beijing, P. R. China), D. H. Wei(Guangxi Normal University, Guilin, P. R. China), P. Weidenkaff(Johannes Gutenberg University of Mainz, Mainz, Germany), Q. G. Wen(University of Science and Technology of China, Hefei, P. R. China), S. P. Wen(Institute of High Energy Physics, Beijing, P. R. China), M. W. Werner(Universitaet Giessen, Giessen, Germany), U. Wiedner(Bochum Ruhr-University, Bochum, Germany), L. H. Wu(Institute of High Energy Physics, Beijing, P. R. China), N. Wu(Institute of High Energy Physics, Beijing, P. R. China), S. X. Wu(University of Science and Technology of China, Hefei, P. R. China), W. Wu(Nankai University, Tianjin, P. R. China), Z. Wu(Institute of High Energy Physics, Beijing, P. R. China), L. G. Xia(Tsinghua University, Beijing, P. R. China), Z. J. Xiao(Nanjing Normal University, Nanjing, P. R. China), Y. G. Xie(Institute of High Energy Physics, Beijing, P. R. China), Q. L. Xiu(Institute of High Energy Physics, Beijing, P. R. China), G. F. Xu(Institute of High Energy Physics, Beijing, P. R. China), G. M. Xu(Peking University, Beijing, P. R. China), H. Xu(Institute of High Energy Physics, Beijing, P. R. China), Q. J. Xu(Hangzhou Normal University, Hangzhou, P. R. China), X. P. Xu(Soochow University, Suzhou, China), Y. Xu(Nankai University, Tianjin, P. R. China), Z. R. Xu(University of Science and Technology of China, Hefei, P. R. China), F. Xue(Huazhong Normal University, Wuhan, P. R. China), Z. Xue(Institute of High Energy Physics, Beijing, P. R. China), L. Yan(University of Science and Technology of China, Hefei, P. R. China), W. B. Yan(University of Science and Technology of China, Hefei, P. R. China), Y. H. Yan(Hunan University, Changsha, P. R. China), H. X. Yang(Institute of High Energy Physics, Beijing, P. R. China), T. Yang(GuangXi University, Nanning, P.R.China), Y. Yang(Huazhong Normal University, Wuhan, P. R. China), Y. X. Yang(Guangxi Normal University, Guilin, P. R. China), H. Ye(Institute of High Energy Physics, Beijing, P. R. China), M. Ye(Institute of High Energy Physics, Beijing, P. R. China), M. H. Ye(China Center of Advanced Science and Technology, Beijing, P. R. China), B. X. Yu(Institute of High Energy Physics, Beijing, P. R. China), C. X. Yu(Nankai University, Tianjin, P. R. China), J. S. Yu(Lanzhou University, Lanzhou, P. R. China), S. P. Yu(Shandong University, Jinan, P. R. China), C. Z. Yuan(Institute of High Energy Physics, Beijing, P. R. China), W. L. Yuan(Nanjing Normal University, Nanjing, P. R. China), Y. Yuan(Institute of High Energy Physics, Beijing, P. R. China), A. A. Zafar(University of the Punjab, Lahore, Pakistan), A. Z. Zallo(INFN Laboratori Nazionali di Frascati, Frascati, Italy), Y. Zeng(Hunan University, Changsha, P. R. China), B. X. Zhang(Institute of High Energy Physics, Beijing, P. R. China), B. Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), C. C. Zhang(Institute of High Energy Physics, Beijing, P. R. China), D. H. Zhang(Institute of High Energy Physics, Beijing, P. R. China), H. H. Zhang(Sun Yat-Sen University, Guangzhou, P. R. China), H. Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. Zhang(Nanjing Normal University, Nanjing, P. R. China), J. G. Zhang(Henan Normal University, Xinxiang, P. R. China), J. Q. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. W. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), J. Z. Zhang(Institute of High Energy Physics, Beijing, P. R. China), L. Zhang(Nanjing University, Nanjing, P. R. China), S. H. Zhang(Institute of High Energy Physics, Beijing, P. R. China), T. R. Zhang(Nanjing Normal University, Nanjing, P. R. China), X. J. Zhang(Institute of High Energy Physics, Beijing, P. R. China), X. Y. Zhang(Shandong University, Jinan, P. R. China), Y. Zhang(Institute of High Energy Physics, Beijing, P. R. China), Y. H. Zhang(Institute of High Energy Physics, Beijing, P. R. China), Y. S. Zhang(GuangXi University, Nanning, P.R.China), Z. P. Zhang(University of Science and Technology of China, Hefei, P. R. China), Z. Y. Zhang(Wuhan University, Wuhan, P. R. China), G. Zhao(Institute of High Energy Physics, Beijing, P. R. China), H. S. Zhao(Institute of High Energy Physics, Beijing, P. R. China), J. W. Zhao(Institute of High Energy Physics, Beijing, P. R. China), K. X. Zhao(Nanjing Normal University, Nanjing, P. R. China), Lei Zhao(University of Science and Technology of China, Hefei, P. R. China), Ling Zhao(Institute of High Energy Physics, Beijing, P. R. China), M. G. Zhao(Nankai University, Tianjin, P. R. China), Q. Zhao(Institute of High Energy Physics, Beijing, P. R. China), S. J. Zhao(Zhengzhou University, Zhengzhou, P. R. China), T. C. Zhao(Institute of High Energy Physics, Beijing, P. R. China), X. H. Zhao(Nanjing University, Nanjing, P. R. China), Y. B. Zhao(Institute of High Energy Physics, Beijing, P. R. China), Z. G. Zhao(University of Science and Technology of China, Hefei, P. R. China), A. Zhemchugov(20, a), B. Zheng(University of South China, Hengyang, P. R. China), J. P. Zheng(Institute of High Energy Physics, Beijing, P. R. China), Y. H. Zheng(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), Z. P. Zheng(Institute of High Energy Physics, Beijing, P. R. China), B. Zhong(Institute of High Energy Physics, Beijing, P. R. China), J. Zhong(Bochum Ruhr-University, Bochum, Germany), L. Zhou(Institute of High Energy Physics, Beijing, P. R. China), X. K. Zhou(Graduate University of Chinese Academy of Sciences, Beijing, P. R. China), X. R. Zhou(University of Science and Technology of China, Hefei, P. R. China), C. Zhu(Institute of High Energy Physics, Beijing, P. R. China), K. Zhu(Institute of High Energy Physics, Beijing, P. R. China), K. J. Zhu(Institute of High Energy Physics, Beijing, P. R. China), S. H. Zhu(Institute of High Energy Physics, Beijing, P. R. China), X. L. Zhu(Tsinghua University, Beijing, P. R. China), X. W. Zhu(Institute of High Energy Physics, Beijing, P. R. China), Y. M. Zhu(Nankai University, Tianjin, P. R. China), Y. S. Zhu(Institute of High Energy Physics, Beijing, P. R. China), Z. A. Zhu(Institute of High Energy Physics, Beijing, P. R. China), J. Zhuang(Institute of High Energy Physics, Beijing, P. R. China), B. S. Zou(Institute of High Energy Physics, Beijing, P. R. China), J. H. Zou(Institute of High Energy Physics, Beijing, P. R. China), and J. X. Zuo(Institute of High Energy Physics, Beijing, P. R. China)

Subjects
hep-ex, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

Based on a data sample of 106 M $\psi^{\prime}$ events collected with the BESIII detector, the decays $\psi^{\prime}\ar\gamma\chi_{c0, 2}$,$\chi_{c0, 2}\ar\gamma\gamma$ are studied to determine the two-photon widths of the $\chi_{c0, 2}$ states. The two-photon decay branching fractions are determined to be ${\cal B}(\chi_{c0}\ar\gamma\gamma) = (2.24\pm 0.19\pm 0.12\pm 0.08)\times 10^{-4}$ and ${\cal B}(\chi_{c2}\ar\gamma\gamma) = (3.21\pm 0.18\pm 0.17\pm 0.13)\times 10^{-4}$. From these, the two-photon widths are determined to be $\Gamma_{\gamma \gamma}(\chi_{c0}) = (2.33\pm0.20\pm0.13\pm0.17)$ keV, $\Gamma_{\gamma \gamma}(\chi_{c2}) = (0.63\pm0.04\pm0.04\pm0.04)$ keV, and $\cal R$ $=\Gamma_{\gamma \gamma}(\chi_{c2})/\Gamma_{\gamma \gamma}(\chi_{c0})=0.271\pm 0.029\pm 0.013\pm 0.027$, where the uncertainties are statistical, systematic, and those from the PDG ${\cal B}(\psi^{\prime}\ar\gamma\chi_{c0,2})$ and $\Gamma(\chi_{c0,2})$ errors, respectively. The ratio of the two-photon widths for helicity $\lambda=0$ and helicity $\lambda=2$ components in the decay $\chi_{c2}\ar\gamma\gamma$ is measured for the first time to be $f_{0/2} =\Gamma^{\lambda=0}_{\gamma\gamma}(\chi_{c2})/\Gamma^{\lambda=2}_{\gamma\gamma}(\chi_{c2}) = 0.00\pm0.02\pm0.02$.

Published
2015

14. Study of chi_cJ decaying into phi K*(892)Kbar

Author

Ablikim, M., Achasov, M. N., X. C., Ai, Albayrak, O., Albrecht, M., Ambrose, D. J., Amoroso, A., F. F., An, An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, H. Y., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, X. R., Chen, Y. B., Cheng, H. P., Chu, X. K., Cibinetto, G., Cronin-hennessy, D., Dai, H. L., Dai, J. P., Dbeyssi, A., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L. Y., Dong, M. Y., S. X., Du, Duan, P. F., Fan, J. Z., Fang, J., Fang, S. S., Fang, X., Fang, Y., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Fioravanti, E., Fritsch, M., C. D., Fu, Gao, Q., Gao, Y., Gao, Z., Garzia, I., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, M., M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y., Guo, Y. P., Haddadi, Z., Hafner, A., Han, S., Han, Y. L., Hao, X. Q., Harris, F. A., K. L., He, Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Hu, Y., Huang, G. M., Huang, G. S., Huang, H. P., Huang, J. S., Huang, X. T., Huang, Y., Hussain, T., Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, L. W., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Johansson, T., Julin, A., Kalantar-nayestanaki, N., Kang, X. L., Kang, X. S., Kavatsyuk, M., B. C., Ke, Kliemt, R., Kloss, B., Kolcu, O. B., Kopf, B., Kornicer, M., Kã¼hn, W., Kupsc, A., Lai, W., Lange, J. S., Lara, M., Larin, P., Leng, C., C. H., Li, Cheng, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Jin, Li, Li, K., Lei, Li, P. R., Li, Li, T., W. D., Li, W. G., Li, X. L., Li, X. M., Li, X. N., Li, X. Q., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Lin, D. X., Liu, B. J., Liu, C. X., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H. B., Liu, H. H., Liu, H. M., Liu, J., Liu, J. P., Liu, J. Y., Liu, K., Liu, K. Y., Liu, L. D., Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, X. X., Liu, Y. B., Liu, Z. A., Liu, Zhiqiang, Liu, Zhiqing, Loehner, H., Lou, X. C., H. J., Lu, J. G., Lu, R. Q., Lu, Lu, Y., Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., Lyu, X. R., F. C., Ma, H. L., Ma, L. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. N., Ma, X. Y., Ma, Maas, F. E., Maggiora, M., Malik, Q. A., Mao, Y. J., Mao, Z. P., Marcello, S., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Y. J., Mo, Morales Morales, C., Moriya, K., Muchnoi, N. Y. U., Muramatsu, H., Nefedov, Y., Nerling, F., Nikolaev, I. B., Ning, Z., Nisar, S., Niu, S. L., Niu, X. Y., Olsen, S. L., Ouyang, Q., Pacetti, S., Patteri, P., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Y. N., Pu, Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, N., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Redmer, C. F., Ren, H. L., Ripka, M., Rong, G., Ruan, X. D., Santoro, V., Sarantsev, A., Savriã©, M., Schoenning, K., Schumann, S., Shan, W., Shao, M., Shen, C. P., Shen, P. X., Shen, X. Y., Sheng, H. Y., Song, W. M., Song, X. Y., Sosio, S., Spataro, S., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Tiemens, M., Toth, D., Ullrich, M., Uman, I., Varner, G. S., Wang, B., Wang, B. L., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, W., Wang, X. F., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. H., Wang, Z. Y., Weber, T., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, S. P., Wiedner, U., Wolke, M., L. H., Wu, Wu, Z., Xia, L. G., Xia, Y., Xiao, D., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, Xu, L., Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Yan, L., Yan, W. B., Yan, W. C., Yan, Y. H., Yang, H. X., Yang, L., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, Yin, J. H., B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, Yuan, C. Z., Yuan, W. L., Yuan, Y., Yuncu, A., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. J., Zhang, J. L., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, K., Zhang, L., Zhang, S. H., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. T., Zhang, Z. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, J. W., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, Q. W., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, W. J., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, Li, Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhu, K., Zhu, K. J., Zhu, S., Zhu, X. L., Zhu, Y. C., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zotti, L., Zou, B. S., and Zou, J. H.

Subjects
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), NO
Published
2015

15. Study of χcJ decaying into K∗ (892) K ¯

Author

Ablikim, M., Achasov, M. N., X. C., Ai, Albayrak, O., Albrecht, M., Ambrose, D. J., Amoroso, Antonio, F. F., An, An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, Fabrizio, Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, H. Y., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, X. R., Chen, Y. B., Cheng, H. P., Chu, X. K., Cibinetto, G., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dbeyssi, A., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, DE MORI, Francesca, Ding, Y., Dong, C., Dong, J., Dong, L. Y., Dong, M. Y., S. X., Du, Duan, P. F., Fan, J. Z., Fang, J., Fang, S. S., Fang, X., Fang, Y., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Fioravanti, E., Fritsch, M., C. D., Fu, Gao, Q., Gao, Y., Gao, Z., Garzia, I., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y., Guo, Y. P., Haddadi, Z., Hafner, A., Han, S., Han, Y. L., Hao, X. Q., Harris, F. A., K. L., He, Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Hu, Y., Huang, G. M., Huang, G. S., Huang, H. P., Huang, J. S., Huang, X. T., Huang, Y., Hussain, T., Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, L. W., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Johansson, T., Julin, A., Kalantar Nayestanaki, N., Kang, X. L., Kang, X. S., Kavatsyuk, M., B. C., Ke, Kliemt, R., Kloss, B., Kolcu, O. B., Kopf, B., Kornicer, M., Kühn, W., Kupsc, A., Lai, W., Lange, J. S., Lara, M., Larin, P., Leng, C., C. H., Li, Cheng, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Jin, Li, Li, K., Lei, Li, P. R., Li, Li, T., W. D., Li, W. G., Li, X. L., Li, X. M., Li, X. N., Li, X. Q., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Lin, D. X., Liu, B. J., Liu, C. X., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H. B., Liu, H. H., Liu, H. M., Liu, J., Liu, J. P., Liu, J. Y., Liu, K., Liu, K. Y., Liu, L. D., Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, X. X., Liu, Y. B., Liu, Z. A., Liu, Zhiqiang, Liu, Zhiqing, Loehner, H., Lou, X. C., H. J., Lu, J. G., Lu, R. Q., Lu, Lu, Y., Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., Lyu, X. R., F. C., Ma, H. L., Ma, L. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. N., Ma, X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Marcello, Simonetta, Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Y. J., Mo, Morales Morales, C., Moriya, K., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nerling, F., Nikolaev, I. B., Ning, Z., Nisar, S., Niu, S. L., Niu, X. Y., Olsen, S. L., Ouyang, Q., Pacetti, S., Patteri, P., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Y. N., Pu, Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, N., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Redmer, C. F., Ren, H. L., Ripka, M., Rong, G., Ruan, X. D., Santoro, V., Sarantsev, A., Savrié, M., Schoenning, K., Schumann, S., Shan, W., Shao, M., Shen, C. P., Shen, P. X., Shen, X. Y., Sheng, H. Y., Song, W. M., Song, X. Y., Sosio, Stefano, Spataro, STEFANO GIOVANNI, Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Tiemens, M., Toth, D., Ullrich, M., Uman, I., Varner, G. S., Wang, B., Wang, B. L., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, W., Wang, X. F., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. H., Wang, Z. Y., Weber, T., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, S. P., Wiedner, U., Wolke, M., L. H., Wu, Wu, Z., Xia, L. G., Xia, Y., Xiao, D., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, Xu, L., Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Yan, L., Yan, W. B., Yan, W. C., Yan, Y. H., Yang, H. X., Yang, L., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, Yin, J. H., B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, Yuan, C. Z., Yuan, W. L., Yuan, Y., Yuncu, A., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. J., Zhang, J. L., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, K., Zhang, L., Zhang, S. H., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. T., Zhang, Z. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, J. W., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, Q. W., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, W. J., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, Li, Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhu, K., Zhu, K. J., Zhu, S., Zhu, X. L., Zhu, Y. C., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zotti, L., Zou, B. S., and Zou, J. H.

Subjects
Nuclear and High Energy Physics
Published
2015

16. Effect of HCH Contamination of Diet on the Growth Performance and Immune and Antioxidant Ability in Growing/Finishing Pigs

Author

F, Wang, Z R, Xu, J H, Sun, and J H, Su

Subjects
Male, Insecticides, Antioxidant, Swine, medicine.medical_treatment, Glutathione reductase, Food Contamination, Biology, Weight Gain, medicine.disease_cause, Superoxide dismutase, Random Allocation, chemistry.chemical_compound, Animal science, medicine, Animals, chemistry.chemical_classification, Dose-Response Relationship, Drug, General Veterinary, Glutathione peroxidase, Alanine Transaminase, Organ Size, General Medicine, Glutathione, Alkaline Phosphatase, Oxidative Stress, Immunoglobulin M, Liver, Biochemistry, chemistry, Catalase, Immunoglobulin G, biology.protein, Alkaline phosphatase, Female, Lipid Peroxidation, Hexachlorocyclohexane, Oxidative stress
Abstract

The effects of hexachlorocyclohexane (HCH) on growth performance and immune and oxidative stress in growing/finishing pigs were studied. Seventy-two pigs, with equal numbers of barrows and gilts, of the same genotype (Duroc x Landrace x Large White), were randomly assigned to three groups receiving the same basal diet, exposed to 0, 0.4 and 0.8 mg/kg technical HCH, respectively, for 90 days. Six pigs from each group were randomly picked out and slaughtered on a finishing feeding trial. The result showed that addition of HCH did not affect the growth performance significantly but increased the weight of kidney and thymus significantly. Total serum IgG and IgM were elevated significantly, but there were no significant differences in serum IgA, C3 and C4 among the groups. Addition of HCH to feedstuff reduced superoxide dismutase (SOD), glutathione S-transferase (GST), glutathione reductase (GR) and glutathione peroxidase (GSH-Px) activities in liver, reduced serum catalase (CAT) activity, and increased serum malondialehyde (MDA). Moreover, the activities of serum alanine aminotransferase and alkaline phosphatase were increased significantly. Addition of 0.4 mg/kg or 0.8 mg/kg HCH did not affect the growth performance but affected the immune and antioxidant potential.

Published
2006

17. Analysis of Zoledronic Acid and Its Related Substances by Ion-Pair RP-LC

Author

Z. R. Xu, Ye Jiang, and Xiaoqing Zhang

Subjects
Active ingredient, Chromatography, Organic Chemistry, Clinical Biochemistry, Reversed-phase chromatography, Biochemistry, Decomposition, High-performance liquid chromatography, Dosage form, Analytical Chemistry, chemistry.chemical_compound, chemistry, Sodium hydroxide, Methanol, Quantitative analysis (chemistry)
Abstract

A simple high-performance liquid chromatographic method – ion-pair reversed- phase high performance liquid chromatography (RPIC) has been developed and employed for the analysis of zoledronic acid and its related substances in bulk material and commercial dosage forms. The mobile phase was a mixture of methanol (20%) and 5 mmol L−1 phosphate buffer (80%) containing 6 mmol L−1 tetrabutylammonium bromide, adjusted to pH 7.0 with sodium hydroxide. C8 column was used as the stationary phase. The chromatographic conditions were optimized. The active ingredient – zoledronic acid was successfully separated from its related substances, including remained imidazol-1-yiacetic acid in the synthesis of zoledronic acid and other possible impurities of oxidation and decomposition. The excipients did not interfere with the determination of zoledronic acid in commercial dosage formulations. The method was rapid, simple, accurate and reproducible. It was not only successfully employed for the assay of zoledronic acid in bulk material and pharmaceutical dosage forms but also for the determination of its related substances.

Published
2004

18. Geometric phase effect at N -fold electronic degeneracies in Jahn-Teller systems

Author

António J. C. Varandas and Z. R. Xu

Subjects
Physics, Geometric phase, Jahn–Teller effect, Quantum mechanics, Physical and Theoretical Chemistry, Condensed Matter Physics, Adiabatic process, Quantum, Atomic and Molecular Physics, and Optics
Abstract

The geometric phase effect at arbitrary integral N-fold electronic degeneracies is investigated in Jahn–Teller systems. It is shown to be a property inherent to inversion of the adiabatic electronic wave vectors in the N-dimensional electronic wave-vector space. The relationship between the geometric phase and mixing angles has also been established. © 2004 Wiley Periodicals, Inc. Int J Quantum Chem, 2004

Published
2004

19. The distributions and effects of nutrients in the sediments of a shallow eutrophic Chinese lake

Author

Z. R. Xu, Richard Dawson, Shu Tao, and Fu-Liu Xu

Subjects
Hydrology, Waves and shallow water, Nutrient, Sediment–water interface, Ecology, parasitic diseases, Environmental science, Sediment, Water quality, Aquatic Science, Water pollution, Eutrophication, Trophic level
Abstract

The temporal and spatial distribution of total nitrogen and total phosphate in the sediments of a shallow eutrophic Chinese lake (Lake Chao), and their relationships with the physical and chemical features of sediments, and their effects on the lake water quality and trophic state, are presented in this paper. The following results were obtained: (1) higher concentration of Tot-N and Tot-P in the sediments occurred in the summer and the autumn seasons; (2) higher annual average Tot-N and Tot-P concentrations were observed in the sediments near the various river mouths and in the western part of the lake; (3) Tot-N and Tot-P concentration in the lake sediments generally increased with increase in lake sediment Eh, pH, and Al2O3, and declined with decrease in lake sediment size diameters and SiO2; and, (4) correlations were observed in both the temporal and spatial distributions between the trophic state, Tot-N and Tot-P concentration in the lake water, and the Tot-N and Tot-P concentration found in the lake sediments.

Published
2003

20. Clustering of cardiovascular risk factors with diabetes in Chinese patients: the effects of sex and hyperinsulinaemia

Author

Z. R. Xu, M. McGill, L. Huang, Dennis K. Yue, Lynda Molyneaux, Y. Liu, H. Jing, and Y. Z. Wang

Subjects
medicine.medical_specialty, business.industry, Endocrinology, Diabetes and Metabolism, Insulin, medicine.medical_treatment, medicine.disease, Obesity, Endocrinology, Insulin resistance, Postprandial, Internal medicine, Diabetes mellitus, Internal Medicine, Albuminuria, medicine, Physical therapy, medicine.symptom, Metabolic syndrome, business, Hyperinsulinism
Abstract

SUMMARY Objective This study was designed to investigate factors which affect the clustering of cardiovascular risk factors with diabetes in Chinese patients. Research Design and Methods: Six hundred and fifty-four patients with diabetes were assessed comprehensively for diabetes complications and cardiovascular risk factors in a metropolitan hospital in Beijing, China. Insulin resistance and secretion were also evaluated by measurement of glucose and insulin levels before and after a meal tolerance test. Results were analysed according to patient groups stratified by the number of cardiovascular risk factors coexisting with diabetes. Results Cardiovascular risk factors were common in Chinese diabetic patients. The clustering of three or more of these factors with diabetes occurred more often than by chance alone and was associated with postprandial hyperinsulinaemia. Patients with a high number of risk factors were more prone to macrovascular events but did not have higher albuminuria. Using the commonly adopted lower threshold for diagnosing obesity and central obesity in women, there were more women with multiple risk factors. However, this disappeared if the same criteria were used for men and women. Even in the presence of diabetes, cardiovascular risk factors were inadequately controlled in most patients. Conclusions The concurrence of diabetes and other cardiovascular risk factors which constitute the metabolic syndrome is a common phenomenon in urban Chinese diabetic patients. It is associated with hyperinsulinaemia and possibly the female sex. This study emphasises the importance of public health measures to control cardiovascular risk factors in patients with diabetes.

Published
2001

21. Vibrational Calculations for the HD2 First-Excited Electronic State Using a Coordinate-Transformation Technique

Author

António J. C. Varandas and Z. R. Xu

Subjects
Crystallography, Excited electronic state, Geometric phase, Chemistry, Coordinate system, Spectrum (functional analysis), Phase (waves), Pseudorotation, Overtone band, State (functional analysis), Physical and Theoretical Chemistry, Atomic physics
Abstract

We report calculations of the vibrational spectrum of HD2 in its first-excited electronic state by using a coordinate-transformation technique. The implications of the geometric phase (GP) effect in the spectrum have been investigated. The results show that the lowest 45 vibrational levels calculated using the traditional Longuet−Higgins phase (phi/2, where phi is the pseudorotation angle) are in good agreement with those obtained by using a single-surface generalized Born−Oppenheimer equation previously reported by the authors. http://dx.doi.org/10.1021/jp0033364

Published
2001

22. Nuclear dynamics in the vicinity of the crossing seam: Theory and application to vibrational spectrum of H3

Author

Z. R. Xu and António J. C. Varandas

Subjects
Physics, General Physics and Astronomy, Electronic structure, Gauge (firearms), Geometric phase, visual_art, Quantum mechanics, Electronic component, visual_art.visual_art_medium, Physical and Theoretical Chemistry, Constant (mathematics), Wave function, Complex plane, Mixing (physics)
Abstract

Based on the equivalence of the gauge transformations for the nuclear and electronic wave functions, the physical meaning of the geometric phase effect has been disclosed for a two coupled-state system. It is found that the geometric phase A(R) is defined by the argument of the complex electronic vector state in the complex plane spanned by the two real-valued electronic components. Such an angle is identical (up to a constant) to the mixing angle γ(R). Novel generalized Born–Oppenheimer equations for the two coupled-state problem in the vicinity of the crossing seam have been derived, and numerical calculations of vibrational spectra done for H3. The results demonstrate significant differences in relation to those obtained from the assumption that A(R)=φ/2.

Published
2000

25. Vibrational spectrum of ground state Li3and statistical analysis of the energy levels

Author

H. G. Yu, Z. R. Xu, and António J. C. Varandas

Subjects
Physics, Fast Fourier transform, Biophysics, Condensed Matter Physics, Spectral line, symbols.namesake, Geometric phase, Computational chemistry, Quantum mechanics, Potential energy surface, symbols, Physical and Theoretical Chemistry, Ground state, Hamiltonian (quantum mechanics), Wave function, Molecular Biology, Random matrix
Abstract

We report J = 0 calculations of all bound vibrational levels of ground-state Li3 using a realistic double many-body expansion potential energy surface, and a minimum-residual filter diagonalization technique. The action of the system Hamiltonian on the wavefunction is evaluated by the spectral transform method in hyperspherical coordinates, i.e. a fast Fourier transform for the ρ and o variables and a discrete variable representation-finite basis representation transformation for θ. The spectrum shows significant changes when geometric phase effects are considered. Using random matrix theory, it is then shown from the neighbour spacing distributions of the vibrational levels that the spectra for the various symmetries are Brody-type while the full spectra are quasi-regular in short range and quasi-irregular in long range.

Published
1999

26. Vibrational spectrum of Li3 first-excited electronic doublet state: Geometric-phase effects and statistical analysis

Author

António J. C. Varandas and Z. R. Xu

Subjects
Chemistry, Jahn–Teller effect, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Spectral line, Many-body problem, symbols.namesake, Geometric phase, Excited state, symbols, Molecule, Physical and Theoretical Chemistry, Atomic physics, Hamiltonian (quantum mechanics), Doublet state
Abstract

We present J=0 calculations of all bound and pseudobound vibrational states of Li3 in its first-excited electronic doublet state by using a realistic double many-body expansion potential-energy surface and a minimum-residual filter diagonalization technique. The action of the system Hamiltonian on the wave function was evaluated by the spectral transform method in hyperspherical coordinates. Calculations of the vibrational spectra were carried out both without consideration and with consideration of geometric-phase effects. Dynamic Jahn–Teller and geometric-phase effects are found to play a significant role, while the calculated fundamental symmetric stretching frequency is larger by 8.3% than its reported experimental value of 326 cm−1. From the neighbor-spacing distributions of the levels, it is observed that the title vibrational spectrum is quasiregular in the short range and quasi-irregular in the long range. By the Δ2 standard defined in this article, it is found that the spectra are more nonuniform than those of the “trough” states for the ground electronic state. ©1999 John Wiley & Sons, Inc. Int J Quant Chem 75: 89–109, 1999

Published
1999

27. Measurements of ψ^{′}→p[over ¯]K^{+}Σ^{0} and χ_{cJ}→p[over ¯]K^{+}Λ

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Ferroli, R. B., Friedel, P., C. D., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Moriya, K., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. F., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, Z., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

28. Search for η and η^{′} invisible decays in J/ψ→ϕη and ϕη^{′}

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Ferroli, R. B., Friedel, P., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, Z., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

29. Observation of a Charged Charmoniumlike Structure in e^{+}e^{-}→π^{+}π^{-}J/ψ at sqrt[s]=4.26 GeV

Author

M, Ablikim, M N, Achasov, X C, Ai, O, Albayrak, D J, Ambrose, F F, An, Q, An, J Z, Bai, R, Baldini Ferroli, Y, Ban, J, Becker, J V, Bennett, M, Bertani, J M, Bian, E, Boger, O, Bondarenko, I, Boyko, R A, Briere, V, Bytev, H, Cai, X, Cai, O, Cakir, A, Calcaterra, G F, Cao, S A, Cetin, J F, Chang, G, Chelkov, G, Chen, H S, Chen, J C, Chen, M L, Chen, S J, Chen, X, Chen, Y B, Chen, H P, Cheng, Y P, Chu, D, Cronin-Hennessy, H L, Dai, J P, Dai, D, Dedovich, Z Y, Deng, A, Denig, I, Denysenko, M, Destefanis, W M, Ding, Y, Ding, L Y, Dong, M Y, Dong, S X, Du, J, Fang, S S, Fang, L, Fava, C Q, Feng, P, Friedel, C D, Fu, J L, Fu, O, Fuks, Q, Gao, Y, Gao, C, Geng, K, Goetzen, W X, Gong, W, Gradl, M, Greco, M H, Gu, Y T, Gu, Y H, Guan, A Q, Guo, L B, Guo, T, Guo, Y P, Guo, Y L, Han, F A, Harris, K L, He, M, He, Z Y, He, T, Held, Y K, Heng, Z L, Hou, C, Hu, H M, Hu, J F, Hu, T, Hu, G M, Huang, G S, Huang, J S, Huang, L, Huang, X T, Huang, Y, Huang, Y P, Huang, T, Hussain, C S, Ji, Q, Ji, Q P, Ji, X B, Ji, X L, Ji, L L, Jiang, X S, Jiang, J B, Jiao, Z, Jiao, D P, Jin, S, Jin, F F, Jing, N, Kalantar-Nayestanaki, M, Kavatsyuk, B, Kopf, M, Kornicer, W, Kühn, W, Lai, J S, Lange, M, Lara, P, Larin, M, Leyhe, C H, Li, Cheng, Li, Cui, Li, D M, Li, F, Li, G, Li, H B, Li, J C, Li, K, Li, Lei, Li, Q J, Li, S L, Li, W D, Li, W G, Li, X L, Li, X N, Li, X Q, Li, X R, Li, Z B, Li, H, Liang, Y F, Liang, Y T, Liang, G R, Liao, X T, Liao, D, Lin, B J, Liu, C L, Liu, C X, Liu, F H, Liu, Fang, Liu, Feng, Liu, H, Liu, H B, Liu, H H, Liu, H M, Liu, H W, Liu, J P, Liu, K, Liu, K Y, Liu, Kai, Liu, P L, Liu, Q, Liu, S B, Liu, X, Liu, Y B, Liu, Z A, Liu, Zhiqiang, Liu, Zhiqing, Liu, H, Loehner, X C, Lou, G R, Lu, H J, Lu, J G, Lu, Q W, Lu, X R, Lu, Y P, Lu, C L, Luo, M X, Luo, T, Luo, X L, Luo, M, Lv, C L, Ma, F C, Ma, H L, Ma, Q M, Ma, S, Ma, T, Ma, X Y, Ma, F E, Maas, M, Maggiora, Q A, Malik, Y J, Mao, Z P, Mao, J G, Messchendorp, J, Min, T J, Min, R E, Mitchell, X H, Mo, Y J, Mo, H, Moeini, C, Morales Morales, K, Moriya, N Yu, Muchnoi, H, Muramatsu, Y, Nefedov, C, Nicholson, I B, Nikolaev, Z, Ning, S L, Olsen, Q, Ouyang, S, Pacetti, J W, Park, M, Pelizaeus, H P, Peng, K, Peters, J L, Ping, R G, Ping, R, Poling, E, Prencipe, M, Qi, S, Qian, C F, Qiao, L Q, Qin, X S, Qin, Y, Qin, Z H, Qin, J F, Qiu, K H, Rashid, G, Rong, X D, Ruan, A, Sarantsev, B D, Schaefer, M, Shao, C P, Shen, X Y, Shen, H Y, Sheng, M R, Shepherd, W M, Song, X Y, Song, S, Spataro, B, Spruck, D H, Sun, G X, Sun, J F, Sun, S S, Sun, Y J, Sun, Y Z, Sun, Z J, Sun, Z T, Sun, C J, Tang, X, Tang, I, Tapan, E H, Thorndike, D, Toth, M, Ullrich, I, Uman, G S, Varner, B Q, Wang, D, Wang, D Y, Wang, K, Wang, L L, Wang, L S, Wang, M, Wang, P, Wang, P L, Wang, Q J, Wang, S G, Wang, X F, Wang, X L, Wang, Y D, Wang, Y F, Wang, Y Q, Wang, Z, Wang, Z G, Wang, Z Y, Wang, D H, Wei, J B, Wei, P, Weidenkaff, Q G, Wen, S P, Wen, M, Werner, U, Wiedner, L H, Wu, N, Wu, S X, Wu, W, Wu, Z, Wu, L G, Xia, Y X, Xia, Z J, Xiao, Y G, Xie, Q L, Xiu, G F, Xu, G M, Xu, Q J, Xu, Q N, Xu, X P, Xu, Z R, Xu, F, Xue, Z, Xue, L, Yan, W B, Yan, Y H, Yan, H X, Yang, Y, Yang, Y X, Yang, H, Ye, M, Ye, M H, Ye, B X, Yu, C X, Yu, H W, Yu, J S, Yu, S P, Yu, C Z, Yuan, Y, Yuan, A A, Zafar, A, Zallo, S L, Zang, Y, Zeng, B X, Zhang, B Y, Zhang, C, Zhang, C C, Zhang, D H, Zhang, H H, Zhang, H Y, Zhang, J Q, Zhang, J W, Zhang, J Y, Zhang, J Z, Zhang, LiLi, Zhang, R, Zhang, S H, Zhang, X J, Zhang, X Y, Zhang, Y, Zhang, Y H, Zhang, Z P, Zhang, Z Y, Zhang, Zhenghao, Zhang, G, Zhao, H S, Zhao, J W, Zhao, K X, Zhao, Lei, Zhao, Ling, Zhao, M G, Zhao, Q, Zhao, S J, Zhao, T C, Zhao, X H, Zhao, Y B, Zhao, Z G, Zhao, A, Zhemchugov, B, Zheng, J P, Zheng, Y H, Zheng, B, Zhong, L, Zhou, X, Zhou, X K, Zhou, X R, Zhou, C, Zhu, K, Zhu, K J, Zhu, S H, Zhu, X L, Zhu, Y C, Zhu, Y M, Zhu, Y S, Zhu, Z A, Zhu, J, Zhuang, B S, Zou, and J H, Zou

Abstract

We study the process ee+ e- → π+ π- J/ψ at a center-of-mass energy of 4.260 GeV using a 525 pb(-1) data sample collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross section is measured to be (62.9±1.9±3.7) pb, consistent with the production of the Y(4260). We observe a structure at around 3.9 GeV/c2 in the π(±)J/ψ mass spectrum, which we refer to as the Z(c)(3900). If interpreted as a new particle, it is unusual in that it carries an electric charge and couples to charmonium. A fit to the π(±)J/ψ invariant mass spectrum, neglecting interference, results in a mass of (3899.0±3.6±4.9) MeV/c2 and a width of (46±10±20) MeV. Its production ratio is measured to be R = (σ(e+ e- → π(±)Z(c)(3900)(∓) → π+ π- J/ψ)/σ(e+ e- → π+ π- J/ψ)) = (21.5±3.3±7.5)%. In all measurements the first errors are statistical and the second are systematic.

Published
2013

30. Measurement of η^{′}→π^{+}π^{-}e^{+}e^{-} and η^{′}→π^{+}π^{-}μ^{+}μ^{-}

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Friedel, P., C. D., Fu, J. L., Fu, Fuks, O., Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Larin, P., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Moeini, H., Morales Morales, C., Moriya, K., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, W. M., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Uman, I., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zang, S. L., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, X., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

31. Search for hadronic transition chi_cJ -> eta_c pi+pi- and observation of chi_cJ -> KKpipipi

Author

Ablikim, M., Achasov, M. N., Ambrose, D. J., F. F., An, An, Q., Z. H., An, Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feldbauer, F., Feng, C. Q., Ferroli, R. B., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kuehn, W., Lai, W., Lange, J. S., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, X. H., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Ma, Y., Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Motzko, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, W. M., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, J., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

32. Observation of Two New N* Resonances in the Decay \psi(3686) \ar ppbarpi0

Author

Ablikim, M., Achasov, M. N., Ambrose, D. J., F. F., An, An, Q., Z. H., An, Bai, J. Z., Ban, Y., Becker, J., Berger, N., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Calcaterra, A., Cao, G. F., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feldbauer, F., Feng, C. Q., Ferroli, R. B., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Hao, X. Q., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, B., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jia, L. K., Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kuehn, W., Lai, W., Lange, J. S., Leung, J. K. C., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, N. B., Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K. Y., Kai, Liu, Kun, Liu, Liu, P. L., Liu, S. B., Liu, X., Liu, X. H., Liu, Y., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Ma, Y., Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, H., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Motzko, C., Muchnoi, N. Y. u., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Pun, C. S. J., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, X. D., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Thorndike, E. H., Tian, H. L., Toth, D., Ullrich, M., Varner, G. S., Wang, B., Wang, B. Q., Wang, J. X., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Xu, Y., Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, T., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, W. L., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. G., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, L., Zhang, S. H., Zhang, T. R., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zheng, Z. P., Zhong, B., Zhong, J., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., and Zuo, J. X.

Published
2013

33. Evidence for η_{c}(2S) in ψ(3686)→γK_{S}^{0}K^{±}π^{∓}π^{+}π^{-}

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Friedel, P., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Uman, I. U., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, Z., Zhou, L., Zhou, X., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

34. Measurements of the branching fractions for J/ψ and ψ′→ΛΛ̄π0 and ΛΛ̄η

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Ferroli, R. B., Friedel, P., C. D., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. F., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, Z., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

35. Observation of a Charged Charmoniumlike Structure Z(c) (4020) and Search for the Z(c) (3900) in e(+)e(-) -> pi(+) pi(-)h(c)

Author

M, Ablikim, M N, Achasov, O, Albayrak, D J, Ambrose, F F, An, Q, An, J Z, Bai, R, Baldini Ferroli, Y, Ban, J, Becker, J V, Bennett, M, Bertani, J M, Bian, E, Boger, O, Bondarenko, I, Boyko, S, Braun, R A, Briere, V, Bytev, H, Cai, X, Cai, O, Cakir, A, Calcaterra, G F, Cao, S A, Cetin, J F, Chang, G, Chelkov, G, Chen, H S, Chen, J C, Chen, M L, Chen, S J, Chen, X R, Chen, Y B, Chen, H P, Cheng, X K, Chu, Y P, Chu, D, Cronin-Hennessy, H L, Dai, J P, Dai, D, Dedovich, Z Y, Deng, A, Denig, I, Denysenko, M, Destefanis, W M, Ding, Y, Ding, L Y, Dong, M Y, Dong, S X, Du, J, Fang, S S, Fang, L, Fava, C Q, Feng, P, Friedel, C D, Fu, J L, Fu, O, Fuks, Y, Gao, C, Geng, K, Goetzen, W X, Gong, W, Gradl, M, Greco, M H, Gu, Y T, Gu, Y H, Guan, A Q, Guo, L B, Guo, T, Guo, Y P, Guo, Y L, Han, F A, Harris, K L, He, M, He, Z Y, He, T, Held, Y K, Heng, Z L, Hou, C, Hu, H M, Hu, J F, Hu, T, Hu, G M, Huang, G S, Huang, J S, Huang, L, Huang, X T, Huang, Y, Huang, T, Hussain, C S, Ji, Q, Ji, Q P, Ji, X B, Ji, X L, Ji, L L, Jiang, X S, Jiang, J B, Jiao, Z, Jiao, D P, Jin, S, Jin, F F, Jing, N, Kalantar-Nayestanaki, M, Kavatsyuk, B, Kloss, B, Kopf, M, Kornicer, W, Kuehn, W, Lai, J S, Lange, M, Lara, P, Larin, M, Leyhe, C H, Li, Cheng, Li, Cui, Li, D L, Li, D M, Li, F, Li, G, Li, H B, Li, J C, Li, K, Li, Lei, Li, N, Li, P R, Li, Q J, Li, W D, Li, W G, Li, X L, Li, X N, Li, X Q, Li, X R, Li, Z B, Li, H, Liang, Y F, Liang, Y T, Liang, G R, Liao, D X, Lin, B J, Liu, C L, Liu, C X, Liu, F H, Liu, Fang, Liu, Feng, Liu, H B, Liu, H H, Liu, H M, Liu, J P, Liu, K, Liu, K Y, Liu, P L, Liu, Q, Liu, S B, Liu, X, Liu, Y B, Liu, Z A, Liu, Zhiqiang, Liu, Zhiqing, Liu, H, Loehner, X C, Lou, G R, Lu, H J, Lu, J G, Lu, X R, Lu, Y P, Lu, C L, Luo, M X, Luo, T, Luo, X L, Luo, M, Lv, F C, Ma, H L, Ma, Q M, Ma, S, Ma, T, Ma, X Y, Ma, F E, Maas, M, Maggiora, Q A, Malik, Y J, Mao, Z P, Mao, J G, Messchendorp, J, Min, T J, Min, R E, Mitchell, X H, Mo, H, Moeini, C, Morales Morales, K, Moriya, N Yu, Muchnoi, H, Muramatsu, Y, Nefedov, I B, Nikolaev, Z, Ning, S, Nisar, S L, Olsen, Q, Ouyang, S, Pacetti, J W, Park, M, Pelizaeus, H P, Peng, K, Peters, J L, Ping, R G, Ping, R, Poling, E, Prencipe, M, Qi, S, Qian, C F, Qiao, L Q, Qin, X S, Qin, Y, Qin, Z H, Qin, J F, Qiu, K H, Rashid, C F, Redmer, M, Ripka, G, Rong, X D, Ruan, A, Sarantsev, S, Schumann, W, Shan, M, Shao, C P, Shen, X Y, Shen, H Y, Sheng, M R, Shepherd, W M, Song, X Y, Song, S, Spataro, B, Spruck, G X, Sun, J F, Sun, S S, Sun, Y J, Sun, Y Z, Sun, Z J, Sun, Z T, Sun, C J, Tang, X, Tang, I, Tapan, E H, Thorndike, D, Toth, M, Ullrich, I, Uman, G S, Varner, B, Wang, D, Wang, D Y, Wang, K, Wang, L L, Wang, L S, Wang, M, Wang, P, Wang, P L, Wang, Q J, Wang, S G, Wang, X F, Wang, X L, Wang, Y D, Wang, Y F, Wang, Y Q, Wang, Z, Wang, Z G, Wang, Z H, Wang, Z Y, Wang, D H, Wei, J B, Wei, P, Weidenkaff, Q G, Wen, S P, Wen, M, Werner, U, Wiedner, L H, Wu, N, Wu, S X, Wu, W, Wu, Z, Wu, L G, Xia, Y X, Xia, Z J, Xiao, Y G, Xie, Q L, Xiu, G F, Xu, Q J, Xu, Q N, Xu, X P, Xu, Z R, Xu, Z, Xue, L, Yan, W B, Yan, W C, Yan, Y H, Yan, H X, Yang, Y, Yang, Y X, Yang, Y Z, Yang, H, Ye, M, Ye, M H, Ye, B X, Yu, C X, Yu, H W, Yu, J S, Yu, S P, Yu, C Z, Yuan, W L, Yuan, Y, Yuan, A A, Zafar, A, Zallo, S L, Zang, Y, Zeng, B X, Zhang, B Y, Zhang, C, Zhang, C B, Zhang, C C, Zhang, D H, Zhang, H H, Zhang, H Y, Zhang, J Q, Zhang, J W, Zhang, J Y, Zhang, J Z, Zhang, LiLi, Zhang, S H, Zhang, X J, Zhang, X Y, Zhang, Y, Zhang, Y H, Zhang, Z P, Zhang, Z Y, Zhang, Zhenghao, Zhang, G, Zhao, J W, Zhao, Lei, Zhao, Ling, Zhao, M G, Zhao, Q, Zhao, S J, Zhao, T C, Zhao, X H, Zhao, Y B, Zhao, Z G, Zhao, A, Zhemchugov, B, Zheng, J P, Zheng, Y H, Zheng, B, Zhong, L, Zhou, X, Zhou, X K, Zhou, X R, Zhou, K, Zhu, K J, Zhu, X L, Zhu, Y C, Zhu, Y S, Zhu, Z A, Zhu, J, Zhuang, B S, Zou, and J H, Zou

Abstract

We study e+e-→π+π-hc at center-of-mass energies from 3.90 to 4.42 GeV by using data samples collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross sections are measured at 13 energies and are found to be of the same order of magnitude as those of e+e-→π+π-J/ψ but with a different line shape. In the π±hc mass spectrum, a distinct structure, referred to as Zc(4020), is observed at 4.02 GeV/c2. The Zc(4020) carries an electric charge and couples to charmonium. A fit to the π±hc invariant mass spectrum, neglecting possible interferences, results in a mass of (4022.9±0.8±2.7) MeV/c2 and a width of (7.9±2.7±2.6) MeV for the Zc(4020), where the first errors are statistical and the second systematic. The difference between the parameters of this structure and the Zc(4025) observed in the D*D[over ¯]* final state is within 1.5σ, but whether they are the same state needs further investigation. No significant Zc(3900) signal is observed, and upper limits on the Zc(3900) production cross sections in π±hc at center-of-mass energies of 4.23 and 4.26 GeV are set.

Published
2013

36. Study of J/ψ→ωpp[over ¯] at BESIII

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Friedel, P., C. D., Fu, J. L., Fu, Fuks, O., Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Larin, P., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Moeini, H., Morales Morales, C., Moriya, K., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, W. M., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Uman, I., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zang, S. L., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, X., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

37. Observation of η_{c} decay into Σ^{+}Σ[over ¯]^{-} and Ξ^{-}Ξ[over ¯]^{+} final states

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Coccetti, F., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feldbauer, F., Feng, C. Q., Ferroli, R. B., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Ma, Y., Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Motzko, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, J., Zhong, Z., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

38. Study of the near-threshold ωϕ mass enhancement in doubly OZI-suppressed J/ψ→γωϕ decays

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Ferroli, R. B., Friedel, P., C. D., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. F., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, Z., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

39. Search for η and η^{′}→π^{+}e^{-}ν[over ¯]_{e}+c.c. decays in J/ψ→ϕη and ϕη^{′}

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, H., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, X., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feng, C. Q., Friedel, P., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guler, N. G., Guo, A. Q., Guo, L. B., Guo, T., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., Hu, C., H. M., Hu, J. F., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, L., Huang, X. T., Huang, Y., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kopf, B., Kornicer, M., Kuehn, W., Lai, W., Lange, J. S., Leyhe, M., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Lin, D., Liu, B. J., Liu, C. L., Liu, C. X., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Kai, Liu, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Moeini, H., Morales, C., Moriya Morales, K., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, L. Q., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Sazak, H. S., Schaefer, B. D., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, W. M., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Uman, I. U., Varner, G. S., Wang, B. Q., Wang, D., Wang, D. Y., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wei, J. B., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xia, Y. X., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Q. J., Xu, Q. N., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, H. W., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zang, S. L., Zeng, Y., Zengin, B. Z., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Lili, Zhang, Zhang, R., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhenghao, Zhang, Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, X., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2013

40. Observation of two new N* resonances in the decay ψ(3686)→ppπ0

Author

M, Ablikim, M N, Achasov, D J, Ambrose, F F, An, Q, An, Z H, An, J Z, Bai, Y, Ban, J, Becker, N, Berger, M, Bertani, J M, Bian, E, Boger, O, Bondarenko, I, Boyko, R A, Briere, V, Bytev, X, Cai, A, Calcaterra, G F, Cao, J F, Chang, G, Chelkov, G, Chen, H S, Chen, J C, Chen, M L, Chen, S J, Chen, Y, Chen, Y B, Chen, H P, Cheng, Y P, Chu, D, Cronin-Hennessy, H L, Dai, J P, Dai, D, Dedovich, Z Y, Deng, A, Denig, I, Denysenko, M, Destefanis, W M, Ding, Y, Ding, L Y, Dong, M Y, Dong, S X, Du, J, Fang, S S, Fang, L, Fava, F, Feldbauer, C Q, Feng, R B, Ferroli, C D, Fu, J L, Fu, Y, Gao, C, Geng, K, Goetzen, W X, Gong, W, Gradl, M, Greco, M H, Gu, Y T, Gu, Y H, Guan, A Q, Guo, L B, Guo, Y P, Guo, Y L, Han, X Q, Hao, F A, Harris, K L, He, M, He, Z Y, He, T, Held, Y K, Heng, Z L, Hou, H M, Hu, J F, Hu, T, Hu, B, Huang, G M, Huang, J S, Huang, X T, Huang, Y P, Huang, T, Hussain, C S, Ji, Q, Ji, X B, Ji, X L, Ji, L K, Jia, L L, Jiang, X S, Jiang, J B, Jiao, Z, Jiao, D P, Jin, S, Jin, F F, Jing, N, Kalantar-Nayestanaki, M, Kavatsyuk, W, Kühn, W, Lai, J S, Lange, J K C, Leung, C H, Li, Cheng, Li, Cui, Li, D M, Li, F, Li, G, Li, H B, Li, J C, Li, K, Li, Lei, Li, N B, Li, Q J, Li, S L, Li, W D, Li, W G, Li, X L, Li, X N, Li, X Q, Li, X R, Li, Z B, Li, H, Liang, Y F, Liang, Y T, Liang, G R, Liao, X T, Liao, B J, Liu, C L, Liu, C X, Liu, C Y, Liu, F H, Liu, Fang, Liu, Feng, Liu, H, Liu, H B, Liu, H H, Liu, H M, Liu, H W, Liu, J P, Liu, K Y, Liu, Kai, Liu, Kun, Liu, P L, Liu, S B, Liu, X, Liu, X H, Liu, Y, Liu, Y B, Liu, Z A, Liu, Zhiqiang, Liu, Zhiqing, Liu, H, Loehner, G R, Lu, H J, Lu, J G, Lu, Q W, Lu, X R, Lu, Y P, Lu, C L, Luo, M X, Luo, T, Luo, X L, Luo, M, Lv, C L, Ma, F C, Ma, H L, Ma, Q M, Ma, S, Ma, T, Ma, X Y, Ma, Y, Ma, F E, Maas, M, Maggiora, Q A, Malik, H, Mao, Y J, Mao, Z P, Mao, J G, Messchendorp, J, Min, T J, Min, R E, Mitchell, X H, Mo, C, Morales Morales, C, Motzko, N Yu, Muchnoi, Y, Nefedov, C, Nicholson, I B, Nikolaev, Z, Ning, S L, Olsen, Q, Ouyang, S, Pacetti, J W, Park, M, Pelizaeus, K, Peters, J L, Ping, R G, Ping, R, Poling, E, Prencipe, C S J, Pun, M, Qi, S, Qian, C F, Qiao, X S, Qin, Y, Qin, Z H, Qin, J F, Qiu, K H, Rashid, G, Rong, X D, Ruan, A, Sarantsev, J, Schulze, M, Shao, C P, Shen, X Y, Shen, H Y, Sheng, M R, Shepherd, X Y, Song, S, Spataro, B, Spruck, D H, Sun, G X, Sun, J F, Sun, S S, Sun, X D, Sun, Y J, Sun, Y Z, Sun, Z J, Sun, Z T, Sun, C J, Tang, X, Tang, E H, Thorndike, H L, Tian, D, Toth, M, Ullrich, G S, Varner, B, Wang, B Q, Wang, J X, Wang, K, Wang, L L, Wang, L S, Wang, M, Wang, P, Wang, P L, Wang, Q, Wang, Q J, Wang, S G, Wang, X F, Wang, X L, Wang, Y D, Wang, Y F, Wang, Y Q, Wang, Z, Wang, Z G, Wang, Z Y, Wang, D H, Wei, P, Weidenkaff, Q G, Wen, S P, Wen, M, Werner, U, Wiedner, L H, Wu, N, Wu, S X, Wu, W, Wu, Z, Wu, L G, Xia, Z J, Xiao, Y G, Xie, Q L, Xiu, G F, Xu, G M, Xu, H, Xu, Q J, Xu, X P, Xu, Y, Xu, Z R, Xu, F, Xue, Z, Xue, L, Yan, W B, Yan, Y H, Yan, H X, Yang, T, Yang, Y, Yang, Y X, Yang, H, Ye, M, Ye, M H, Ye, B X, Yu, C X, Yu, J S, Yu, S P, Yu, C Z, Yuan, W L, Yuan, Y, Yuan, A A, Zafar, A, Zallo, Y, Zeng, B X, Zhang, B Y, Zhang, C C, Zhang, D H, Zhang, H H, Zhang, H Y, Zhang, J, Zhang, J G, Zhang, J Q, Zhang, J W, Zhang, J Y, Zhang, J Z, Zhang, L, Zhang, S H, Zhang, T R, Zhang, X J, Zhang, X Y, Zhang, Y, Zhang, Y H, Zhang, Y S, Zhang, Z P, Zhang, Z Y, Zhang, G, Zhao, H S, Zhao, J W, Zhao, K X, Zhao, Lei, Zhao, Ling, Zhao, M G, Zhao, Q, Zhao, S J, Zhao, T C, Zhao, X H, Zhao, Y B, Zhao, Z G, Zhao, A, Zhemchugov, B, Zheng, J P, Zheng, Y H, Zheng, Z P, Zheng, B, Zhong, J, Zhong, L, Zhou, X K, Zhou, X R, Zhou, C, Zhu, K, Zhu, K J, Zhu, S H, Zhu, X L, Zhu, X W, Zhu, Y M, Zhu, Y S, Zhu, Z A, Zhu, J, Zhuang, B S, Zou, J H, Zou, and J X, Zuo

Abstract

Based on 106×10(6)ψ(3686) events collected with the BESIII detector at the BEPCII facility, a partial wave analysis of ψ(3686)→ppπ0 is performed. The branching fraction of this channel has been determined to be B(ψ(3686)→ppπ0)=(1.65±0.03±0.15)×10(-4). In this decay, 7 N* intermediate resonances are observed. Among these, two new resonances, N(2300) and N(2570) are significant, one 1/2+ resonance with a mass of 2300(-30-0)(+40+109) MeV/c2 and width of 340(-30-58)(+30+110) MeV/c2, and one 5/2- resonance with a mass of 2570(-10-10)(+19+34) MeV/c2 and width of 250(-24-21)(+14+69) MeV/c2. For the remaining 5 N* intermediate resonances [N(1440), N(1520), N(1535), N(1650) and N(1720)], the analysis yields mass and width values that are consistent with those from established resonances.

Published
2012

41. Evidence for the direct two-photon transition from ψ(3686) to J/ψ

Author

M, Ablikim, M N, Achasov, D J, Ambrose, F F, An, Q, An, Z H, An, J Z, Bai, R B, Ferroli, Y, Ban, J, Becker, N, Berger, M B, Bertani, J M, Bian, E, Boger, O, Bondarenko, I, Boyko, R A, Briere, V, Bytev, X, Cai, A C, Calcaterra, G F, Cao, J F, Chang, G, Chelkov, G, Chen, H S, Chen, J C, Chen, M L, Chen, S J, Chen, Y, Chen, Y B, Chen, H P, Cheng, Y P, Chu, D, Cronin-Hennessy, H L, Dai, J P, Dai, D, Dedovich, Z Y, Deng, A, Denig, I, Denysenko, M, Destefanis, W M, Ding, Y, Ding, L Y, Dong, M Y, Dong, S X, Du, J, Fang, S S, Fang, L, Fava, F, Feldbauer, C Q, Feng, C D, Fu, J L, Fu, Y, Gao, C, Geng, K, Goetzen, W X, Gong, W, Gradl, M, Greco, M H, Gu, Y T, Gu, Y H, Guan, A Q, Guo, L B, Guo, Y P, Guo, Y L, Han, X Q, Hao, F A, Harris, K L, He, M, He, Z Y, He, T, Held, Y K, Heng, Z L, Hou, H M, Hu, J F, Hu, T, Hu, B, Huang, G M, Huang, J S, Huang, X T, Huang, Y P, Huang, T, Hussain, C S, Ji, Q, Ji, X B, Ji, X L, Ji, L K, Jia, L L, Jiang, X S, Jiang, J B, Jiao, Z, Jiao, D P, Jin, S, Jin, F F, Jing, N, Kalantar-Nayestanaki, M, Kavatsyuk, W, Kuehn, W, Lai, J S, Lange, J K C, Leung, C H, Li, Cheng, Li, Cui, Li, D M, Li, F, Li, G, Li, H B, Li, J C, Li, K, Li, Lei, Li, N B, Li, Q J, Li, S L, Li, W D, Li, W G, Li, X L, Li, X N, Li, X Q, Li, X R, Li, Z B, Li, H, Liang, Y F, Liang, Y T, Liang, G R, Liao, X T, Liao, B J, Liu, C L, Liu, C X, Liu, C Y, Liu, F H, Liu, Fang, Liu, Feng, Liu, H, Liu, H B, Liu, H H, Liu, H M, Liu, H W, Liu, J P, Liu, Kun, Liu, Kai, Liu, K Y, Liu, P L, Liu, S B, Liu, X, Liu, X H, Liu, Y B, Liu, Y, Liu, Z A, Liu, Zhiqiang, Liu, Zhiqing, Liu, H, Loehner, G R, Lu, H J, Lu, J G, Lu, Q W, Lu, X R, Lu, Y P, Lu, C L, Luo, M X, Luo, T, Luo, X L, Luo, M, Lv, C L, Ma, F C, Ma, H L, Ma, Q M, Ma, S, Ma, T, Ma, X Y, Ma, Y, Ma, F E, Maas, M, Maggiora, Q A, Malik, H, Mao, Y J, Mao, Z P, Mao, J G, Messchendorp, J, Min, T J, Min, R E, Mitchell, X H, Mo, C, Morales Morales, C, Motzko, N Yu, Muchnoi, Y, Nefedov, C, Nicholson, I B, Nikolaev, Z, Ning, S L, Olsen, Q, Ouyang, S P, Pacetti, J W, Park, M, Pelizaeus, K, Peters, J L, Ping, R G, Ping, R, Poling, E, Prencipe, C S J, Pun, M, Qi, S, Qian, C F, Qiao, X S, Qin, Y, Qin, Z H, Qin, J F, Qiu, K H, Rashid, G, Rong, X D, Ruan, A, Sarantsev, J, Schulze, M, Shao, C P, Shen, X Y, Shen, H Y, Sheng, M R, Shepherd, X Y, Song, S, Spataro, B, Spruck, D H, Sun, G X, Sun, J F, Sun, S S, Sun, X D, Sun, Y J, Sun, Y Z, Sun, Z J, Sun, Z T, Sun, C J, Tang, X, Tang, E H, Thorndike, H L, Tian, D, Toth, M U, Ulrich, G S, Varner, B, Wang, B Q, Wang, K, Wang, L L, Wang, L S, Wang, M, Wang, P, Wang, P L, Wang, Q, Wang, Q J, Wang, S G, Wang, X F, Wang, X L, Wang, Y D, Wang, Y F, Wang, Y Q, Wang, Z, Wang, Z G, Wang, Z Y, Wang, D H, Wei, P, Weidenkaff, Q G, Wen, S P, Wen, M W, Werner, U, Wiedner, L H, Wu, N, Wu, S X, Wu, W, Wu, Z, Wu, L G, Xia, Z J, Xiao, Y G, Xie, Q L, Xiu, G F, Xu, G M, Xu, H, Xu, Q J, Xu, X P, Xu, Y, Xu, Z R, Xu, F, Xue, Z, Xue, L, Yan, W B, Yan, Y H, Yan, H X, Yang, T, Yang, Y, Yang, Y X, Yang, H, Ye, M, Ye, M H, Ye, B X, Yu, C X, Yu, J S, Yu, S P, Yu, C Z, Yuan, W L, Yuan, Y, Yuan, A A, Zafar, A Z, Zallo, Y, Zeng, B X, Zhang, B Y, Zhang, C C, Zhang, D H, Zhang, H H, Zhang, H Y, Zhang, J, Zhang, J G, Zhang, J Q, Zhang, J W, Zhang, J Y, Zhang, J Z, Zhang, L, Zhang, S H, Zhang, T R, Zhang, X J, Zhang, X Y, Zhang, Y, Zhang, Y H, Zhang, Y S, Zhang, Z P, Zhang, Z Y, Zhang, G, Zhao, H S, Zhao, J W, Zhao, K X, Zhao, Lei, Zhao, Ling, Zhao, M G, Zhao, Q, Zhao, S J, Zhao, T C, Zhao, X H, Zhao, Y B, Zhao, Z G, Zhao, A, Zhemchugov, B, Zheng, J P, Zheng, Y H, Zheng, Z P, Zheng, B, Zhong, J, Zhong, L, Zhou, X K, Zhou, X R, Zhou, C, Zhu, K, Zhu, K J, Zhu, S H, Zhu, X L, Zhu, X W, Zhu, Y M, Zhu, Y S, Zhu, Z A, Zhu, J, Zhuang, B S, Zou, J H, Zou, and J X, Zuo

Subjects
Physics, Particle physics, Branching fraction, Electron–positron annihilation, General Physics and Astronomy
Abstract

The two-photon transition ψ(3686)→γγJ/ψ is studied in a sample of 1.06×10(8) ψ(3686) decays collected by the BESIII detector. The branching fraction is measured to be (3.1±0.6(stat)(-1.0)(+0.8)(syst))×10(-4) using J/ψ→e(+)e(-) and J/ψ→μ(+)μ(-) decays, and its upper limit is estimated to be 4.5×10(-4) at the 90% confidence level. This work represents the first measurement of a two-photon transition among charmonium states. The orientation of the ψ(3686) decay plane and the J/ψ polarization in this decay are also studied. In addition, the product branching fractions of sequential E1 transitions ψ(3686)→γχ(cJ) and χ(cJ)→γJ/ψ(J=0,1,2) are reported.

Published
2012

42. Experimental study of ψ′ decays to K+K-π0 and K+K-η

Author

Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., F. F., An, An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., Calcaterra, A., Cao, G. F., Cetin, S. A., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Fava, L., Feldbauer, F., Feng, C. Q., Ferroli, R. B., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Gradl, W., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Harris, F. A., K. L., He, He, M., Z. Y., He, Held, T., Heng, Y. K., Hou, Z. L., H. M., Hu, Hu, T., Huang, G. M., Huang, G. S., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., Q. P., Ji, X. B., Ji, X. L., Ji, Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kuehn, W., Lai, W., Lange, J. S., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K. Y., Liu, Kai, Liu, P. L., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Liu, Zhiqiang, Liu, Zhiqing, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Ma, Y., Maas, F. E., Maggiora, Marco, Malik, Q. A., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Morales Morales, C., Motzko, C., Muchnoi, N. Y. u., Muramatsu, H., Nefedov, Y., Nicholson, C., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peng, H. P., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Prencipe, E., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qin, Y., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schaefer, B. D., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tapan, I., Thorndike, E. H., Toth, D., Ullrich, M., Varner, G. S., Wang, B., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Weidenkaff, P., Wen, Q. G., Wen, S. P., Werner, M., Wiedner, U., L. H., Wu, Wu, N., S. X., Wu, Wu, W., Wu, Z., Xia, L. G., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, J. S., Yu, S. P., Yu, Yuan, C. Z., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, S. H., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Zhao, J. W., Zhao, K. X., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, Q. Z., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, J., Zhong, Z., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. M., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Published
2012

43. Precision measurement of the branching fractions of J/ψ→π+π−π0 and ψ′→π+π−π0

Author

Ablikim, M., Achasov, M. N., Alberto, D., Ambrose, D. J., F. F., An, An, Q., Z. H., An, Bai, J. Z., Baldini Ferroli, R. B. F., Ban, Y., Becker, J., Berger, N., Bertani, M. B., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Calcaterra, A. C., Cao, G. F., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, W. M., Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Feng, C. Q., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Hao, X. Q., Harris, F. A., K. L., He, He, M., Z. Y., He, Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, B., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jia, L. K., Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kuehn, W., Lai, W., Lange, J. S., Leung, J. K. C., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, N. B., Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Liu, Q., Liu, S. B., Liu, X., Liu, X. H., Liu, Y. B., Yong, Liu, Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., X. Y., Ma, Maggiora, Marco, Malik, Q. A., Mao, H., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Muchnoi, N. Y. u., Nefedov, Y., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S. P., Park, J. W., Pelizaeus, M., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Pun, C. S. J., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qin, Z. H., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, X. D., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Thorndike, E. H., Tian, H. L., Toth, D., Ulrich, M. U., Varner, G. S., Wang, B., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wen, Q. G., Wen, S. P., Werner, M. W., Wiedner, U., L. H., Wu, Wu, N., Wu, W., Wu, Z., Xia, L. G., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Xu, Y., Z. R., Xu, Xue, F., Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, T., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, S. P., Yu, Yuan, C. Z., Yuan, W. L., Yuan, Y., Zafar, A. A., Zallo, A. Z., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, L., Zhang, S. H., Zhang, T. R., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Jingwei, Zhao, Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zheng, Z. P., Zhong, B., Zhong, J., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., and Zuo, J. X.

Published
2012

44. Ageing response and mechanical properties of a SiCp/Al-Li (8090) composite

Author

X. Li, A. K. Zurek, K. K. Chawla, Rajendra U. Vaidya, and Z. R. Xu

Subjects
Materials science, Mechanical Engineering, Composite number, Alloy, technology, industry, and agriculture, Plasticity, engineering.material, Spray forming, Thermal expansion, Carbide, Mechanics of Materials, Ultimate tensile strength, Hardening (metallurgy), engineering, General Materials Science, Composite material
Abstract

The ageing kinetics of a silicon carbide particle-reinforced Al-Li (8090) matrix composite and unreinforced alloy, both made by spray forming, were investigated. Ageing treatments, without any straining after solutionizing, and with a 2% plastic strain after solutionizing, were employed. The peak ageing times of the matrix in the composite was shorter than that of the unreinforced alloy. The enhanced hardening rate of the matrix in the composite was attributed to the higher dislocation density induced as a result of the plastic deformation occurring at the particle/matrix interface. This plastic deformation is a result of the large difference in the coefficient of thermal expansion between the particles and matrix. Subjecting the samples to a 2% plastic strain reduced the peak ageing times even further. The tensile strength of the composite samples was marginally higher than that of the unreinforced alloy. Samples subjected to 2% plastic straining prior to ageing also exhibited higher strength values. The strain to failure of all the samples did not recover in the over-aged state.

Published
1994

45. ηπ+ π- resonant structure around 1.8 GeV/c(2) and η(1405) in J/ψ → ωηπ+ π

Author

M, Ablikim, M N, Achasov, D, Alberto, Q, An, Z H, An, J Z, Bai, R, Baldini, Y, Ban, J, Becker, N, Berger, M, Bertani, J M, Bian, O, Bondarenko, I, Boyko, R A, Briere, V, Bytev, X, Cai, A C, Calcaterra, G F, Cao, X X, Cao, J F, Chang, G, Chelkov, G, Chen, H S, Chen, J C, Chen, M L, Chen, S J, Chen, Y, Chen, Y B, Chen, H P, Cheng, Y P, Chu, D, Cronin-Hennessy, H L, Dai, J P, Dai, D, Dedovich, Z Y, Deng, I, Denysenko, M, Destefanis, Y, Ding, L Y, Dong, M Y, Dong, S X, Du, R R, Fan, J, Fang, S S, Fang, C Q, Feng, C D, Fu, J L, Fu, Y, Gao, C, Geng, K, Goetzen, W X, Gong, M, Greco, S, Grishin, M H, Gu, Y T, Gu, Y H, Guan, A Q, Guo, L B, Guo, Y P, Guo, X Q, Hao, F A, Harris, K L, He, M, He, Z Y, He, Y K, Heng, Z L, Hou, H M, Hu, J F, Hu, T, Hu, B, Huang, G M, Huang, J S, Huang, X T, Huang, Y P, Huang, T, Hussain, C S, Ji, Q, Ji, X B, Ji, X L, Ji, L K, Jia, L L, Jiang, X S, Jiang, J B, Jiao, Z, Jiao, D P, Jin, S, Jin, F F, Jing, N, Kalantar-Nayestanaki, M, Kavatsyuk, S, Komamiya, W, Kuehn, J S, Lange, J K C, Leung, Cheng, Li, Cui, Li, D M, Li, F, Li, G, Li, H B, Li, J C, Li, K, Li, Lei, Li, N B, Li, Q J, Li, W D, Li, W G, Li, X L, Li, X N, Li, X Q, Li, X R, Li, Z B, Li, H, Liang, Y F, Liang, Y T, Liang, X T, Liao, B J, Liu, C L, Liu, C X, Liu, C Y, Liu, F H, Liu, Fang, Liu, Feng, Liu, G C, Liu, H, Liu, H B, Liu, H H, Liu, H M, Liu, H W, Liu, J P, Liu, K, Liu, K Y, Liu, Q, Liu, S B, Liu, X, Liu, X H, Liu, Y B, Liu, Y W, Liu, Yong, Liu, Z A, Liu, Z Q, Liu, H, Loehner, G R, Lu, H J, Lu, J G, Lu, Q W, Lu, X R, Lu, Y P, Lu, C L, Luo, M X, Luo, T, Luo, X L, Luo, C L, Ma, F C, Ma, H L, Ma, Q M, Ma, T, Ma, X, Ma, X Y, Ma, M, Maggiora, Q A, Malik, H, Mao, Y J, Mao, Z P, Mao, J G, Messchendorp, J, Min, R E, Mitchell, X H, Mo, N Yu, Muchnoi, Y, Nefedov, I B, Nikolaev, Z, Ning, S L, Olsen, Q, Ouyang, S, Pacetti, M, Pelizaeus, K, Peters, J L, Ping, R G, Ping, R, Poling, C S J, Pun, M, Qi, S, Qian, C F, Qiao, X S, Qin, J F, Qiu, K H, Rashid, G, Rong, X D, Ruan, A, Sarantsev, J, Schulze, M, Shao, C P, Shen, X Y, Shen, H Y, Sheng, M R, Shepherd, X Y, Song, S, Sonoda, S, Spataro, B, Spruck, D H, Sun, G X, Sun, J F, Sun, S S, Sun, X D, Sun, Y J, Sun, Y Z, Sun, Z J, Sun, Z T, Sun, C J, Tang, X, Tang, H L, Tian, D, Toth, G S, Varner, X, Wan, B Q, Wang, K, Wang, L L, Wang, L S, Wang, M, Wang, P, Wang, P L, Wang, Q, Wang, S G, Wang, X L, Wang, Y D, Wang, Y F, Wang, Y Q, Wang, Z, Wang, Z G, Wang, Z Y, Wang, D H, Wei, Q G, Wen, S P, Wen, U, Wiedner, L H, Wu, N, Wu, W, Wu, Z, Wu, Z J, Xiao, Y G, Xie, G F, Xu, G M, Xu, H, Xu, Q J, Xu, X P, Xu, Y, Xu, Z R, Xu, Z Z, Xu, Z, Xue, L, Yan, W B, Yan, Y H, Yan, H X, Yang, M, Yang, T, Yang, Y, Yang, Y X, Yang, M, Ye, M H, Ye, B X, Yu, C X, Yu, L, Yu, S P Yu, Yu, C Z, Yuan, W L, Yuan, Y, Yuan, A A, Zafar, A, Zallo, Y, Zeng, B X, Zhang, B Y, Zhang, C C, Zhang, D H, Zhang, H H, Zhang, H Y, Zhang, J, Zhang, J W, Zhang, J Y, Zhang, J Z, Zhang, L, Zhang, S H, Zhang, T R, Zhang, X J, Zhang, X Y, Zhang, Y, Zhang, Y H, Zhang, Z P, Zhang, Z Y, Zhang, G, Zhao, H S, Zhao, Jiawei, Zhao, Jingwei, Zhao, Lei, Zhao, Ling, Zhao, M G, Zhao, Q, Zhao, S J, Zhao, T C, Zhao, X H, Zhao, Y B, Zhao, Z G, Zhao, Z L, Zhao, A, Zhemchugov, B, Zheng, J P, Zheng, Y H, Zheng, Z P, Zheng, B, Zhong, J, Zhong, L, Zhong, L, Zhou, X K, Zhou, X R, Zhou, C, Zhu, K, Zhu, K J, Zhu, S H, Zhu, X L, Zhu, X W, Zhu, Y S, Zhu, Z A, Zhu, J, Zhuang, B S, Zou, J H, Zou, and J X, Zuo

Abstract

We present results of a study of the decay J/ψ → ωηπ+ π- using a sample of (225.2 ± 2.8) × 10(6) J/ψ events collected by the BESIII detector, and report the observation of a new process J/ψ → ωX(1870) with a statistical significance of 7.2σ, in which X(1870) decays to a(0)(±)(980)π±. Fitting to ηπ+ π- mass spectrum yields a mass M = 1877.3 ± 6.3(stat)(-7.4)(+3.4)(syst) MeV/c(2), a width Γ = 57 ± 12(stat)(-4)(+19)(syst) MeV/c(2), and a product branching fraction B(J/ψ → ωX) × B(X→a(0)(±)(980)π±) × B(a(0) (±)(980) → ηπ±) = [1.50 ± 0.26(stat)(-0.36)(+0.72) (syst)] × 10(-4). Signals for J/ψ → ωf(1)(1285) and J/ψ → ω η(1405) are also clearly observed and measured.

Published
2011

46. Observation of χ(c1) decays into vector meson pairs φφ, ωω, and ωφ

Author

M, Ablikim, M N, Achasov, L, An, Q, An, Z H, An, J Z, Bai, R, Baldini, Y, Ban, J, Becker, N, Berger, M, Bertani, J M, Bian, O, Bondarenko, I, Boyko, R A, Briere, V, Bytev, X, Cai, G F, Cao, X X, Cao, J F, Chang, G, Chelkov, G, Chen, H S, Chen, J C, Chen, M L, Chen, S J, Chen, Y, Chen, Y B, Chen, H P, Cheng, Y P, Chu, D, Cronin-Hennessy, H L, Dai, J P, Dai, D, Dedovich, Z Y, Deng, I, Denysenko, M, Destefanis, Y, Ding, L Y, Dong, M Y, Dong, S X, Du, M Y, Duan, R R, Fan, J, Fang, S S, Fang, C Q, Feng, C D, Fu, J L, Fu, Y, Gao, C, Geng, K, Goetzen, W X, Gong, M, Greco, S, Grishin, M H, Gu, Y T, Gu, Y H, Guan, A Q, Guo, L B, Guo, Y P, Guo, X Q, Hao, F A, Harris, K L, He, M, He, Z Y, He, Y K, Heng, Z L, Hou, H M, Hu, J F, Hu, T, Hu, B, Huang, G M, Huang, J S, Huang, X T, Huang, Y P, Huang, T, Hussain, C S, Ji, Q, Ji, X B, Ji, X L, Ji, L K, Jia, L L, Jiang, X S, Jiang, J B, Jiao, Z, Jiao, D P, Jin, S, Jin, F F, Jing, M, Kavatsyuk, S, Komamiya, W, Kuehn, J S, Lange, J K C, Leung, Cheng, Li, Cui, Li, D M, Li, F, Li, G, Li, H B, Li, J C, Li, Lei, Li, N B, Li, Q J, Li, W D, Li, W G, Li, X L, Li, X N, Li, X Q, Li, X R, Li, Z B, Li, H, Liang, Y F, Liang, Y T, Liang, G R, Liao, X T, Liao, B J, Liu, C L, Liu, C X, Liu, C Y, Liu, F H, Liu, Fang, Liu, Feng, Liu, G C, Liu, H, Liu, H B, Liu, H M, Liu, H W, Liu, J P, Liu, K, Liu, K Y, Liu, Q, Liu, S B, Liu, X, Liu, X H, Liu, Y B, Liu, Y W, Liu, Yong, Liu, Z A, Liu, Z Q, Liu, H, Loehner, G R, Lu, H J, Lu, J G, Lu, Q W, Lu, X R, Lu, Y P, Lu, C L, Luo, M X, Luo, T, Luo, X L, Luo, C L, Ma, F C, Ma, H L, Ma, Q M, Ma, T, Ma, X, Ma, X Y, Ma, M, Maggiora, Q A, Malik, H, Mao, Y J, Mao, Z P, Mao, J G, Messchendorp, J, Min, R E, Mitchell, X H, Mo, N Yu, Muchnoi, Y, Nefedov, Z, Ning, S L, Olsen, Q, Ouyang, S, Pacetti, M, Pelizaeus, K, Peters, J L, Ping, R G, Ping, R, Poling, C S J, Pun, M, Qi, S, Qian, C F, Qiao, X S, Qin, J F, Qiu, K H, Rashid, G, Rong, X D, Ruan, A, Sarantsev, J, Schulze, M, Shao, C P, Shen, X Y, Shen, H Y, Sheng, M R, Shepherd, X Y, Song, S, Sonoda, S, Spataro, B, Spruck, D H, Sun, G X, Sun, J F, Sun, S S, Sun, X D, Sun, Y J, Sun, Y Z, Sun, Z J, Sun, Z T, Sun, C J, Tang, X, Tang, X F, Tang, H L, Tian, D, Toth, G S, Varner, X, Wan, B Q, Wang, K, Wang, L L, Wang, L S, Wang, M, Wang, P, Wang, P L, Wang, Q, Wang, S G, Wang, X L, Wang, Y D, Wang, Y F, Wang, Y Q, Wang, Z, Wang, Z G, Wang, Z Y, Wang, D H, Wei, Q G, Wen, S P, Wen, U, Wiedner, L H, Wu, N, Wu, W, Wu, Z, Wu, Z J, Xiao, Y G, Xie, G F, Xu, G M, Xu, H, Xu, Y, Xu, Z R, Xu, Z Z, Xu, Z, Xue, L, Yan, W B, Yan, Y H, Yan, H X, Yang, M, Yang, T, Yang, Y, Yang, Y X, Yang, M, Ye, M H, Ye, B X, Yu, C X, Yu, L, Yu, C Z, Yuan, W L, Yuan, Y, Yuan, A A, Zafar, A, Zallo, Y, Zeng, B X, Zhang, B Y, Zhang, C C, Zhang, D H, Zhang, H H, Zhang, H Y, Zhang, J, Zhang, J W, Zhang, J Y, Zhang, J Z, Zhang, L, Zhang, S H, Zhang, T R, Zhang, X J, Zhang, X Y, Zhang, Y, Zhang, Y H, Zhang, Z P, Zhang, Z Y, Zhang, G, Zhao, H S, Zhao, Jiawei, Zhao, Jingwei, Zhao, Lei, Zhao, Ling, Zhao, M G, Zhao, Q, Zhao, S J, Zhao, T C, Zhao, X H, Zhao, Y B, Zhao, Z G, Zhao, Z L, Zhao, A, Zhemchugov, B, Zheng, J P, Zheng, Y H, Zheng, Z P, Zheng, B, Zhong, J, Zhong, L, Zhong, L, Zhou, X K, Zhou, X R, Zhou, C, Zhu, K, Zhu, K J, Zhu, S H, Zhu, X L, Zhu, X W, Zhu, Y S, Zhu, Z A, Zhu, J, Zhuang, B S, Zou, J H, Zou, J X, Zuo, and P, Zweber

Abstract

Using (106±4)×10⁻⁶ ψ(3686) events accumulated with the BESIII detector at the BEPCII e⁺e⁻ collider, we present the first measurement of decays of χ(c1) to vector meson pairs φφ, ωω, and ωφ. The branching fractions are measured to be (4.4±0.3±0.5)×10⁻⁴, (6.0±0.3±0.7)×10⁻⁴, and (2.2±0.6±0.2)×10⁻⁵, for χ(c1)→φφ, ωω, and ωφ, respectively, which indicates that the hadron helicity selection rule is significantly violated in χ(cJ) decays. In addition, the measurement of χ(cJ)→ωφ provides the first indication of the rate of doubly OZI-suppressed χ(cJ) decay. Finally, we present improved measurements for the branching fractions of χ(c0) and χ(c2) to vector meson pairs.

Published
2011

47. Study of a00(980)-f0(980) mixing

Author

Ablikim, M., Achasov, M. N., An, L., An, Q., Z. H., An, Bai, J. Z., Baldini, R., Ban, Y., Becker, J., Berger, N., Bertani, M., Bian, J. M., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cao, G. F., Cao, X. X., Chang, J. F., Chen, G. Chelkov G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Duan, M. Y., Fan, R. R., Fang, J., Fang, S. S., Feldbauer, F., Feng, C. Q., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Greco, Michela, Grishin, S., M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Hao, X. Q., Harris, F. A., K. L., He, He, M., Z. Y., He, Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, B., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jia, L. K., Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kavatsyuk, M., Komamiya, S., Kuehn, W., Lange, J. S., Leung, J. K. C., Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Lei, Li, N. B., Li, Q. J., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, G. C., Liu, H., Liu, H. B., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Liu, Q., Liu, S. B., Liu, X., Liu, X. H., Liu, Y. B., Liu, Y. W., Yong, Liu, Liu, Z. A., Liu, Z. Q., Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, T., Ma, X., X. Y., Ma, Maggiora, Marco, Malik, Q. A., Mao, H., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Mitchell, R. E., X. H., Mo, Motzko, C., Muchnoi, N. Y. u., Nefedov, Y., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Pelizaeus, M., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Pun, C. S. J., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Schulze, A. Sarantsev J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Sonoda, S., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, X. D., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tang, X. F., Tian, H. L., Toth, D., Varner, G. S., Wan, X., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wen, S. P., Wiedner, U., L. H., Wu, Wu, N., Wu, W., Wu, Z., Xiao, Z. J., Xie, Y. G., G. F., Xu, G. M., Xu, Xu, H., Xu, Y., Z. R., Xu, Z. Z., Xu, Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, M., Yang, T., Yang, Y., Yang, Y. X., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, Yu, L., Yuan, C. Z., Yuan, W. L., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, L., Zhang, S. H., Zhang, T. R., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Jiawei, Zhao, Jingwei, Zhao, Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhao, Z. L., Zheng, A. Zhemchugov B., Zheng, J. P., Zheng, Y. H., Zheng, Z. P., Zhong, B., Zhong, J., Zhong, L., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., Zuo, J. X., and Zweber, P.

Published
2011

48. Observation of chi(cJ) decaying into the p(p)over-barK(+)K(-) final state

Author

Ablikim, M., Achasov, M. N., Alberto, D., An, L., An, Q., Z. H., An, Bai, J. Z., Baldini, R., Ban, Y., Becker, J., Berger, N., Bertani, M., Bian, J. M., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cao, G. F., Cao, X. X., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fan, R. R., Fang, J., Fang, S. S., Feng, C. Q., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Greco, Michela, Grishin, S., M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Hao, X. Q., Harris, F. A., K. L., He, He, M., Z. Y., He, Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, B., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jia, L. K., Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Komamiya, S., Kuehn, W., Lange, J. S., Leung, J. K. C., Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Lei, Li, N. B., Li, Q. J., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, G. C., Liu, H., Liu, H. B., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Liu, Q., Liu, S. B., Liu, X., Liu, X. H., Liu, Y. B., Liu, Y. W., Yong, Liu, Liu, Z. A., Liu, Z. Q., Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, T., Ma, X., X. Y., Ma, Maggiora, Marco, Malik, Q. A., Mao, H., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Mitchell, R. E., X. H., Mo, Muchnoi, N. Y. u., Nefedov, Y., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Pelizaeus, M., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Pun, C. S. J., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Sonoda, S., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, X. D., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tang, X. F., Tian, H. L., Toth, D., Varner, G. S., Wan, X., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wen, Q. G., Wen, S. P., Wiedner, U., L. H., Wu, Wu, N., Wu, W., Wu, Z., Xiao, Z. J., Xie, Y. G., G. F., Xu, G. M., Xu, Xu, H., Xu, Y., Z. R., Xu, Z. Z., Xu, Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, M., Yang, T., Yang, Y., Yang, Y. X., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, Yu, L., Yuan, C. Z., Yuan, W. L., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, L., Zhang, S. H., Zhang, T. R., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Jiawei, Zhao, Jingwei, Zhao, Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhao, Z. L., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zheng, Z. P., Zhong, B., Zhong, J., Zhong, L., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., Zuo, J. X., Zweber, P., and KVI - Center for Advanced Radiation Technology

Subjects
COLOR OCTET CONTRIBUTION, WAVE CHARMONIUM DECAY, High Energy Physics::Experiment
Abstract

First measurements of the decays of the three chi(cJ) states to p (p) over barK(+)K(-) final states are presented. Intermediate phi -> K+K- and Lambda(1520) -> pK(-) resonance states are observed, and branching fractions for chi(cJ) -> (p) over barK(+) Lambda(1520), Lambda(1520)(Lambda) over bar (1520) phi p (p) over bar are reported. We also measure branching fractions for direct chi(cJ) ! p (p) over barK(+)K(-) decays. These are first observations of chi(cJ) decays to unstable baryon resonances and provide useful information about the chi(cJ) states. The experiment uses samples of chi(cJ) mesons produced via radiative transitions from 106 x 10(6) psi' mesons collected in the BESIII detector at the BEPCII e(+)e- collider.

Published
2011

49. Higher-order multipole amplitude measurement in psi ' -> gamma chi(c2)

Author

Ablikim, M., Achasov, M. N., Alberto, D., F. F., An, An, Q., Z. H., An, Bai, J. Z., Baldini, R., Ban, Y., Becker, J., Berger, N., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Calcaterra, A. C., Cao, G. F., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Feng, C. Q., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Hao, X. Q., Harris, F. A., K. L., He, He, M., Z. Y., He, Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, B., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jia, L. K., Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kuehn, W., Lai, W., Lange, J. S., Leung, J. K. C., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, N. B., Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Liu, Q., Liu, S. B., Liu, X., Liu, X. H., Liu, Y. B., Liu, Y. W., Yong, Liu, Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., Ma, X., X. Y., Ma, Maggiora, Marco, Malik, Q. A., Mao, H., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Muchnoi, N. Y. u., Nefedov, Y., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Pun, C. S. J., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, X. D., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tian, H. L., Toth, D., Varner, G. S., Wang, B., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wen, Q. G., Wen, S. P., Wiedner, U., L. H., Wu, Wu, N., Wu, W., Wu, Z., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Xu, Y., Z. R., Xu, Z. Z., Xu, Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, T., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, S. P., Yu, Yuan, C. Z., Yuan, W. L., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, L., Zhang, S. H., Zhang, T. R., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Jiawei, Zhao, Jingwei, Zhao, Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhao, Z. L., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zheng, Z. P., Zhong, B., Zhong, J., Zhong, L., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., and Zuo, J. X.

Published
2011

50. eta pi(+)pi(-) Resonant Structure around 1.8 GeV/c(2) and eta(1405) in J/psi -> omega eta pi(+)pi(-)

Author

Ablikim, M., Achasov, M. N., Alberto, D., F. F., An, An, Q., Z. H., An, Bai, J. Z., Baldini, R., Ban, Y., Becker, J., Berger, N., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Calcaterra, A. C., Cao, G. F., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, S. J., Chen, Y., Chen, Y. B., Cheng, H. P., Chu, Y. P., Cronin Hennessy, D., Dai, H. L., Dai, J. P., Dedovich, D., Deng, Z. Y., Denysenko, I., Destefanis, MARCO GIOVANNI, Ding, Y., Dong, L. Y., Dong, M. Y., S. X., Du, Fang, J., Fang, S. S., Feng, C. Q., C. D., Fu, J. L., Fu, Gao, Y., Geng, C., Goetzen, K., Gong, W. X., Greco, Michela, M. H., Gu, Y. T., Gu, Guan, Y. H., Guo, A. Q., Guo, L. B., Guo, Y. P., Han, Y. L., Hao, X. Q., Harris, F. A., K. L., He, He, M., Z. Y., He, Heng, Y. K., Hou, Z. L., H. M., Hu, J. F., Hu, Hu, T., Huang, B., Huang, G. M., Huang, J. S., Huang, X. T., Huang, Y. P., Hussain, T., C. S., Ji, Ji, Q., X. B., Ji, X. L., Ji, Jia, L. K., Jiang, L. L., Jiang, X. S., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jing, F. F., Kalantar Nayestanaki, N., Kavatsyuk, M., Kuehn, W., Lai, W., Lange, J. S., Leung, J. K. C., C. H., Li, Cheng, Li, Cui, Li, D. M., Li, Li, F., Li, G., H. B., Li, J. C., Li, Li, K., Lei, Li, N. B., Li, Q. J., Li, S. L., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, X. R., Li, Z. B., Li, Liang, H., Liang, Y. F., Liang, Y. T., Liao, X. T., Liu, B. J., Liu, C. L., Liu, C. X., Liu, C. Y., Liu, F. H., Fang, Liu, Feng, Liu, Liu, H., Liu, H. B., Liu, H. H., Liu, H. M., Liu, H. W., Liu, J. P., Liu, K., Liu, K. Y., Liu, Q., Liu, S. B., Liu, X., Liu, X. H., Liu, Y. B., Liu, Y. W., Yong, Liu, Liu, Z. A., Zhiqiang, Liu, Zhiqing, Liu, Loehner, H., G. R., Lu, H. J., Lu, J. G., Lu, Q. W., Lu, X. R., Lu, Y. P., Lu, Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lv, M., C. L., Ma, F. C., Ma, H. L., Ma, Q. M., Ma, Ma, S., Ma, T., Ma, X., X. Y., Ma, Maggiora, Marco, Malik, Q. A., Mao, H., Mao, Y. J., Mao, Z. P., Messchendorp, J. G., Min, J., Min, T. J., Mitchell, R. E., X. H., Mo, Muchnoi, N. Y. u., Nefedov, Y., Nikolaev, I. B., Ning, Z., Olsen, S. L., Ouyang, Q., Pacetti, S., Park, J. W., Pelizaeus, M., Peters, K., Ping, J. L., Ping, R. G., Poling, R., Pun, C. S. J., Qi, M., Qian, S., Qiao, C. F., Qin, X. S., Qiu, J. F., Rashid, K. H., Rong, G., Ruan, X. D., Sarantsev, A., Schulze, J., Shao, M., Shen, C. P., Shen, X. Y., Sheng, H. Y., Shepherd, M. R., Song, X. Y., Spataro, STEFANO GIOVANNI, Spruck, B., Sun, D. H., Sun, G. X., Sun, J. F., Sun, S. S., Sun, X. D., Sun, Y. J., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tang, C. J., Tang, X., Tian, H. L., Toth, D., Varner, G. S., Wang, B., Wang, B. Q., Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, Q., Wang, Q. J., Wang, S. G., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. Q., Wang, Z., Wang, Z. G., Wang, Z. Y., Wei, D. H., Wen, Q. G., Wen, S. P., Wiedner, U., L. H., Wu, Wu, N., Wu, W., Wu, Z., Xiao, Z. J., Xie, Y. G., Xiu, Q. L., G. F., Xu, G. M., Xu, Xu, H., Q. J., Xu, X. P., Xu, Xu, Y., Z. R., Xu, Z. Z., Xu, Xue, Z., Yan, L., Yan, W. B., Yan, Y. H., Yang, H. X., Yang, T., Yang, Y., Yang, Y. X., Ye, H., Ye, M., M. H., Ye, B. X., Yu, C. X., Yu, S. P., Yu, Yuan, C. Z., Yuan, W. L., Yuan, Y., Zafar, A. A., Zallo, A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, L., Zhang, S. H., Zhang, T. R., Zhang, X. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. S., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, H. S., Jiawei, Zhao, Jingwei, Zhao, Lei, Zhao, Ling, Zhao, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, X. H., Zhao, Y. B., Zhao, Z. G., Zhao, Z. L., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, Y. H., Zheng, Z. P., Zhong, B., Zhong, J., Zhong, L., Zhou, L., Zhou, X. K., Zhou, X. R., Zhu, C., Zhu, K., Zhu, K. J., Zhu, S. H., Zhu, X. L., Zhu, X. W., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., Zou, J. H., and Zuo, J. X.

Published
2011

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