| Title | Evidence for e~+e~-→γχ_(c1,2) at center-of-mass energies from 4.009 to 4.360 GeV |
| Authors | 麦迪娜 艾小聪 安芬芬 安琪 白景芝 班勇 边渐鸣 蔡浩 蔡啸 曹国富 常劲帆 陈刚 陈和生 陈海云 陈江川 陈玛丽 陈申见 谌炫 陈旭荣 陈元柏 程和平 褚新坤 代洪亮 代建平 邓子艳 丁勇 董超 董静 董燎原 董明义 杜书先 段鹏飞 范荆州 方建 房双世 方馨 方易 封常青 傅成栋 高清 高原宁 高榛 龚文煊 顾旻皓 顾运厅 管颖慧 郭爱强 郭立波 郭墩 郭玥 韩爽 韩艳良 何康林 何振亚 衡月昆 侯治龙 胡琛 胡海明 胡继峰 胡涛 胡誉 黄光明 黄光顺 黄海鹏 黄金书 黄性涛 黄勇 纪全 姬清平 季晓斌 季筱璐 姜丽丽 姜鲁文 江晓山 焦健斌 焦铮 金大鹏 金山 康晓琳 康晓珅 赖蔚 李春花 李澄 李德民 李飞 李刚 李海波 李家才 李瑾 李康 李科 李培荣 李腾 李卫东 李卫国 李晓玲 李小梅 李小男 李学潜 李志兵 梁昊 梁勇飞 梁羽铁 廖广睿 Lin 刘北江 刘春秀 刘福虎 刘芳 刘峰 刘宏邦 刘汇慧 刘欢欢 刘怀民 刘杰 刘觉平 刘晶译 刘凯 刘魁勇 刘兰雕 刘佩莲 刘倩 刘树彬 刘翔 刘晓霞 刘玉斌 刘振安 刘志强 Zhiqiang Liu 娄辛丑 吕海江 吕军光 鲁睿其 卢宇 卢云鹏 罗成林 |
| Affiliation | Institute of High Energy Physics Chinese Academy of Sciences G.I. Budker Institute of Nuclear Physics SB RAS (BINP) the Novosibirsk State University Carnegie Mellon University Bochum Ruhr-University University of Rochester University of Turin INFN University of Science and Technology of China INFN Laboratori Nazionali di Frascati Peking University Indiana University INFN Sezione di Ferrara University of Minnesota Joint Institute for Nuclear Research the Moscow Institute of Physics and Technology KVI-CART University of Groningen Wuhan University Istanbul Aydin University Ankara University Dogus University the Functional Electronics Laboratory Tomsk State University Beihang University Nanjing University Lanzhou University Huangshan College Shanghai Jiao Tong University Helmholtz Institute Mainz Johannes Gutenberg University of Mainz Liaoning University Nankai University Zhengzhou University Tsinghua University University of Eastern Piedmont GSI Helmholtzcentre for Heavy Ion Research Gmb H D-64291 Darmstadt ... |
| Keywords | heavy quarkonia decays of hadronic electron-positron collisions hadron production by |
| Issue Date | 2015 |
| Publisher | Chinese Physics C |
| Citation | Chinese Physics C. 2015, 5-13. |
| Abstract | Using data samples collected at center-of-mass energies of √s=4.009, 4.230, 4.260, and 4.360 Ge V with the BES detector operating at the BEPC collider, we perform a search for the process e+e-→γχc J(J =0, 1, 2)and find evidence for e+e-→γχc1 and e+e-→γχc2 with statistical significances of 3.0σ and 3.4σ, respectively. The Born cross sections σB(e+e-→γχc J), as well as their upper limits at the 90% confidence level(C.L.) are determined at each center-of-mass energy. |
| URI | http://hdl.handle.net/20.500.11897/480116 |
| ISSN | 1674-1137 |
| Indexed | 中国科技核心期刊(ISTIC) |
| Appears in Collections: | 待认领 |
