| Title | Measurement of e~+e~-→D■ cross sections at the ψ(3770) resonance |
| Authors | 麦迪娜 安芬芬 安琪 白羽 班勇 边渐鸣 蔡浩 蔡啸 曹国富 常劲帆 陈刚 陈和生 陈江川 陈玛丽 陈平亮 陈申见 陈旭荣 陈元柏 褚新坤 代洪亮 代建平 邓子艳 丁勇 董超 董静 董燎原 董明义 豆正磊 杜书先 段鹏飞 方建 房双世 方易 封常青 傅成栋 高清 高鑫磊 高原宁 高勇贵 高榛 龚丽 龚文煊 谷立民 顾旻皓 顾运厅 郭爱强 郭立波 郭如盼 郭玉萍 韩爽 郝喜庆 何康林 何希勤 衡月昆 侯治龙 胡海明 胡继峰 胡涛 胡誉 黄光顺 黄金书 黄性涛 黄晓忠 黄智玲 纪全 姬清平 季晓斌 季筱璐 江晓山 蒋兴雨 焦健斌 焦铮 金大鹏 金山 金毅 康晓珅 柯百谦 李翠 李澄 李德民 李飞 李峰云 李刚 李海波 李惠静 李家才 李井文 李凯杰 李康 李科 李蕾 李佩莲 李培荣 李启云 李腾 李卫东 李卫国 李晓玲 李小男 李学潜 李志兵 梁昊 梁勇飞 梁羽铁 廖广睿 廖龙洲 林创新 林德旭 刘冰 刘北江 刘春秀 刘栋 刘殿宇 刘福虎 刘芳 刘峰 刘宏邦 刘恒君 刘怀民 刘欢欢 刘汇慧 刘建北 刘晶译 刘凯 刘魁勇 刘珂 刘兰雕 刘倩 刘树彬 刘翔 刘玉斌 刘振安 刘智青 龙云飞 娄辛丑 吕海江 吕军光 卢宇 |
| Affiliation | Institute of High Energy Physics G.I.Budker Institute of Nuclear Physics SB RAS (BINP) the Novosibirsk State University Helmholtz Institute Mainz Bochum Ruhr-University University of Turin INFN State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Southeast University Joint Institute for Nuclear Research INFN Laboratori Nazionali di Frascati Peking University Institute of Physics and Technology Indiana University Carnegie Mellon University Johannes Gutenberg University of Mainz INFN Sezione di Ferrara University of Minnesota the Moscow Institute of Physics and Technology Wuhan University Ankara University University of Chinese Academy of Sciences Istanbul Bilgi University the Functional Electronics Laboratory Tomsk State University University of South China Nanjing University Lanzhou University Shanghai Jiao Tong University Key Laboratory for Particle Physics Astrophysics and Cosmology Ministry of Education Shanghai Key Laboratory for Particle Physics and Co... |
| Keywords | charm mesons cross sections BESⅢ/BEPCⅡ |
| Issue Date | 2018 |
| Publisher | Chinese Physics C |
| Citation | Chinese Physics C. 2018, 5-22. |
| Abstract | We report new measurements of the cross sections for the production of DD final states at theψ(3770)resonance.Our data sample consists of an integrated luminosity of 2.93 fb~(-1)of e~+e~-annihilation data produced by the BEPCⅡ collider and collected and analyzed with the BESⅢ detector.We exclusively reconstruct three D~0and six D~+hadronic decay modes and use the ratio of the yield of fully reconstructed DD events("double tags")to the yield of all reconstructed D or D mesons("single tags")to determine the number of D~0 D~0and D~+D~-events,benefiting from the cancellation of many systematic uncertainties.Combining these yields with an independent determination of the integrated luminosity of the data sample,we find the cross sections to beσ(e~+e~-→D~0D~0)=(3.615±0.010±0.038)nb andσ(e~+e~-→D~+D~-)=(2.830±0.011±0.026)nb,where the uncertainties are statistical and systematic,respectively. |
| URI | http://hdl.handle.net/20.500.11897/530205 |
| ISSN | 1674-1137 |
| Appears in Collections: | 待认领 |
