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Luminosities and energies of e^(+)e^(−) collision data taken between √s=4.61 GeV and 4.95.GeV at BESⅢ

chinese Physics C 2022年第11期46卷 64-75页

作者： M.Ablikim M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso M.R.An Q.An X.H.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov C.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.Ede Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du P.Egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng K Fischer M.Fritsch C.Fritzsch C.D.{5. H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco M.H.Gu C.Y Guan A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov T.T.Han W.Y.Han X.Q.hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold M.Himmelreich T.Holtmann G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Husken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia H.B.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kuhn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.li C.li C.H.li Cheng li D.M.li F.li G.li H.li H.li H.B.li H.J.li H.N.li J.Q.li J.S.li J.W.li Ke li L.J li L.K.li Lei li M.H.li P.R.li S.X.li S.Y.li T.li W.D.li W.G.li X.H.li X.L.li Xiaoyu li Z.Y.li H.liang H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby A.limphirat C.X.lin D.X.lin T.lin B.J.liu C.X.liu D.liu F.H.liu Fang liu Feng liu G.M.liu H.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.L.liu J.Y.liu K.liu K.Y.L institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly institute of Modern Physics Lanzhou 730000China institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

From December 2.19 to June 2.2.,the BESⅢ experiment collected approximately 5.85.fb^(−1) of data at center-of-mass energies between 4.61 and 4.95.*** is the highest collision energy BEPCⅡ has reached to *** accumulated e^(+)e^(−) annihilation data samples are useful for stud{2.g charmonium(-like)states and charmed-hadron *** adopting a novel method of analyzing the production of A_(c)^(+)A_(c)^(-) pairs in e^(+)e^(−) annihilation,the center-of-mass energies are measured with a precision of 0.6 *** luminosities are measured with a precision of better than 1% by analyzing the events of large-angle Bhabha *** measurements provide important inputs to analyses based on these data samples.

关键词： luminosity center-of-mass energy BESⅢdetector

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论“植物医学”学科与专业的建设

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植物医生 2021年第3期34卷 1-6页

作者：刘同先丁伟沈佐锐杨忠岐许永玉李洪连原雪峰马德英文才艺董金皋刘芳邱宝利王源超张正光黄丽丽黄国华操海群潘月敏韩强黄金光刘会香刘怀侯有明王宗华刘长仲缪卫国刘国坤郭永霞罗朝喜梁广文曾玲李华平顾爱星左豫虎李向东张大羽吴元华段玉玺尹建潘洪玉钟国华张跃进赵中华陈根强林晓民张友军万方浩高希武李世东褚栋赵洪海梁文星王森山张世泽李俊凯谭辉华王文明周洪友赵思峰王兰芦光新崔汝强李会平尚巧霞赵晓燕青岛农业大学植物医学学院山东青岛266109 西南大学植物保护学院重庆400715 中国农业大学植物保护学院北京100193 中国林业科学院北京100091 山东农业大学植物保护学院山东泰安271001 河南农业大学植物保护学院郑州450002 新疆农业大学农学院乌鲁木齐830052 河北农业大学植物保护学院河北保定071001 扬州大学园艺与植物保护学院江苏扬州225009 华南农业大学植物保护学院广州510642 南京农业大学植物保护学院南京210014 西北农林科技大学植物保护学院陕西杨凌712100 湖南农业大学植物保护学院长沙410128 安徽农业大学植物保护学院合肥230036 福建农林大学植物保护学院福州350002 甘肃农业大学植物保护学院兰州730070 海南大学植物保护学院海口570228 黑龙江八一农垦大学农学院黑龙江大庆163319 华中农业大学植物科技学院武汉430070 浙江农林大学农学院杭州311300 沈阳农业大学植物保护学院沈阳110161 信阳农林学院农学院河南信阳464006 吉林大学植物科技学院长春130012 全国农业技术推广服务中心北京100026 河南科技大学园艺与植保学院河南洛阳471023 中国农业科学院蔬菜花卉研究所北京100081 中国农业科学院植物保护研究所北京100193 长江大学农学院湖北荆州434020 广西大学农学院南宁530004 四川农业大学农学院四川雅安625014 内蒙古农业大学园艺与植保学院呼和浩特010018 石河子大学农学院新疆石河子832003 塔里木大学植物科学学院新疆阿拉尔843300 青海大学农牧学院西宁810016 江西农业大学农学院南昌330045 河北农业大学林学院河北保定071001 北京农学院生物与资源环境学院北京102206

195.0}以前我国涉农高校设有植物病理学、昆虫学学科与专业,没有“植物保护”这一名称.在195.0}全国高校院系调整时,因学习和借鉴原苏联的教育体系而引入并设立“植物保护”学科与专业.目前我国至少有62.高校设有“植物保护”学科和本... 详细信息

195.0}以前我国涉农高校设有植物病理学、昆虫学学科与专业,没有“植物保护”这一名称.在195.0}全国高校院系调整时,因学习和借鉴原苏联的教育体系而引入并设立“植物保护”学科与专业.目前我国至少有62.高校设有“植物保护”学科和本、专科专业.无论从专业名称、专业侧重或专业理念上看,“植物保护”都远远不能满足新农科背景下学科专业建设和高素质人才培养及“三农”发展的需求.在原植物保护学科的基础上,升级建设“植物医学”学科,与人医学、兽医学一起构建人类健康和食物安全的三大支柱和生态命运共同体是新时期赋予医学人员的使命.“植物医学”名称自明,理念新颖;基础植物医学探讨植物与害源的关系;实用植物医学倡导以植物健康为核心的“治未病”.本文通过分析我国高校植物保护学科与专业发展中存在的问题,呼吁在原“植物保护”学科与专业的基础上,建立“植物医学”一级学科与相关专业,逐步完善科学的高素质植物医学人才培养体系,建设新农科和深入贯彻落实习近平总书记给全国涉农高校书记校长和专家代表重要回信精神,以新农科建设为统领,推进高等农林教育创新发展,培养出更多学农、知农、爱农的新型人才.

关键词：植物医学植物保护学科发展新农科

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future Physics Programme of BESⅢ

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chinese Physics C 2020年第4期44卷 I0001-I0004,1-102页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht M.Alekseev A.Amoroso F.F.An Q.An Y.Bai O.Bakina R.Baldini Ferroli Y.Ban K.Begzsuren J.V.Bennett N.Berger M.Bertani D.Bettoni F.Bianchi J Biernat J.Bloms I.Boyko R.A.Briere L.Calibbi H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.Chai J.F.Chang W.L.Chang J.Charles G.Chelkov Chen G.Chen H.S.Chen J.C.Chen M.L.Chen S.J.Chen Y.B.Chen H.Y.Cheng W.Cheng G.Cibinetto F.Cossio X.F.Cui H.L.Dai J.P.Dai X.C.Dai A.Dbeyssi D.Dedovich Z.Y.Deng A.Denig Denysenko M.Destefanis S.Descotes-Genon F.De Mori Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong Z.L.Dou S.X.Du S.I.Eidelman J.Z.Fan J.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng M.Fritsch C.D.{5. Y.{5. Q.Gao X.L.Gao Y.Gao Y.Gao Y.G.Gao Z.Gao B.Garillon I.Garzia E.M.Gersabeck A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu Y.T.Gu A.Q.Guo F.K.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov S.Han X.Q.hao F.A.Harris K.L.He F.H.Heinsius T.Held Y.K.Heng Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang J.S.Huang X.T.Huang X.Z.Huang Z.L.Huang N.Huesken T.Hussain W.Ikegami Andersson W.Imoehl M.Irshad Q.Ji Q.P.Ji X.B.Ji X.L.Ji H.L.Jiang X.S.Jiang X.Y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin Y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk T.Khan A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth M.G.Kurth W.Kuhn J.S.Lange P.Larin L.Lavezzi H.Leithoff T.Lenz C.li Cheng li D.M.li F.li F.Y.li G.li H.B.li H.J.li J.C.li J.W.li Ke li L.K.li Lei li P.L.li P.R.li Q.Y.li W.D.li W.G.li X.H.li X.L.li X.N.li X.Q.li Z.B.li H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby C.X.lin D.X.lin Y.J.lin B.liu B.J.liu C.X.liu D.liu D.Y.liu F.H.liu Fang liu Feng liu H.B.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.Y.liu K.Y.liu Ke liu Q.liu S.B.liu T.liu X.liu X.Y.liu Y.B.liu Z.A.liu Zhiqing liu Y.F.Long X.C.Lou H.J.Lu J.D.Lu J.G.Lu Y.Lu Y.P.Lu C.L.luo M.X.luo P.W.luo T.luo X.L.luo S.Lusso X.R.Lyu F.C.Ma H.L.Ma L.L.Ma M.M.Ma Q.M.Ma X.N.Ma X.X. institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200443China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Ferrara I-44122FerraraItaly institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Shandong University Jinan 250100China Shanghai

There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like XYZ states at BESⅢ and B factories, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related X(1835. meson state at BESⅢ, as well as the threshold measurements of charm mesons and charm baryons. We present a detailed survey of the important topics in tau-charm physics and hadron physics that can be further explored at BESⅢ during the remaining operation period of BEPCⅡ. This survey will help in the optimization of the data-taking plan over the coming years, and provides physics motivation for the possible upgrade of BEPCⅡ to higher luminosity.

关键词： meson hadron optimization

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Measurement of the integrated Luminosities of cross-section scan data samples around theψ(3770)mass region

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chinese Physics C 2018年第6期42卷 1-8页

作者： M. Ablikim M. N. Achasov S. Ahmed M. Albrecht M. Alekseev A. Amoroso F. F. An Q. An Y. Bai O. Bakina R. Baldini Ferroli Y. Ban K. Begzsuren D. W. Bennett J. V. Bennett N. Berger M. Bertani D. Bettoni F. Bianchi E. Boger I. Boyko R. A. Briere H. Cai X. Cai O. Cakir A. Calcaterra G. F. Cao S. A. Cetin J. Chai J. F. Chang W. L. Chang G. Chelkov G. Chen H. S. Chen J. C. Chen M. L. Chen P. L. Chen S. J. Chen X. R. Chen Y. B. Chen X. K. Chu G. Cibinetto F. Cossio H. a. Dai, J. F. Dai A. Dbeyssi D. Dedovich Z. Y. Deng A. Denig I. Denysenko M. Destefanis F. De Mori Y. Ding C. Dong J. Dong L. Y. Dong M. Y. Dong Z. L. Dou S. X. Du P. F. nuan J. Fang S. S. Fang Y. Fang R. Farinelli L. Fava S. Fegan F. Feldbauer G. Felici C. Q. Feng E. Fioravanti M. Fritsch C. D. fu Q. Gao X. L. Gao Y. Gao, Y. G. Gao Z. Gao B. Garillon I. Garzia A. Gilman K. Goetzen L. Gong W. X. Gong W. Gradl M. Greco L. M. Gu M. H. Gu Y. T. Gu A. q. Guo L. B. Guo R. P. Guo Y. F. Guo A. Guskov Z. Haddadi S. Han X. Q. {5. F. A. Harris Z. L. He X. O. He F. H. Heinsius T. Held Y. K. Heng T. Holtmann Z. L. Hou H. M. Hu J. F. gu T. Hu Y. Hu G. S. Huang J. S. Huang X. T. Huang X. Z. Huang Z. L. guang T. Hussain W. Ikegami Andersson M Irshad Q. Ji Q. P. Ji X. B. Ji X. L. Ji X. S. Jiang X. Y. Jiang J. B. Jiao Z. Jiao D. P. Jin S. Jin Y. Jin T. Johansson A. Julin N. Kalantar-Nayestanaki X. S. Kang M. Kavatsyuk B. C. Ke T. Khan A. Khoukaz P. Kiese R. Kliemt L. Koch O. B. Kolcu B. Kopf M. Kornicer M. Kuemmel M. Kuessner A. Kupsc M. Kurth W. Kiihn J. S. Lange M. Lara P. Larin L. Lavezzi S. Leiber H. Leithofi C. li Cheng li D. M. li F. li F. Y. li G. li H. B. li H. J. li J. C. li J. W. li K. J. li Kang li Ke li Lei li P. L. li P. R. li Q. Y. li T. li W. D. li W. G. li X. L. li X. N. li X. Q. li Z. B. li H. liang Y. F. liang Y. T. liang G. R. liao L. Z. liao J. libby C. X. lin D. X. lin S. liu B. J. liu C. X. liu D. liu D. Y. liu F. H. liu Fang liu Feng liu H. B. liu H. L liu H. M. liu Huanhuan liu Huihui liu J. B. liu J. Y. liu K. liu K. Y. liu Ke liu L. D. liu Q. liu S B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beihang University Beijing 100191 China Beijing institute of Petrochemical Technology Beijing 102617 China Bochum Ruhr-University D-44780 Bochum Germany Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA Central China Normal University Wuhan 430079 China China Center of Advanced Science and Technology Beijing 100190 China COMSATS institute of Information Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker institute of Nuclear Physics SB RAS （BINP） Novosibirsk 630090 Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 Darmstadt Germany Guangxi Normal University Guilin 541004 China Guangxi University Nanning 530004 China Hangzhou Normal University Hangzhou 310036 China Helmholtz institute Mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany Henan Normal University Xinxiang 453007 China Henan University of Science and Technology Luoyang 471003 China Huangshan College Huangshan 245000 China Hunan Normal University Changsha 410081 China Hunan University Changsha 410082 China Indian institute of Tec

To investigate the nature of the Ψ（3770） resonance and to measure the cross section for e^＋e^-→DD, a cross-section scan data sample, distributed among 41 center-of-mass energy points from 3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPCII collider in the year 2.10. By analyzing the large angle Bhabha scattering events, we measure the integrated luminosity of the data sample at each center-of-mass energy point. The total integrated luminosity of the data sample is 76.16±0.04±0.61 pb^-1, where the first uncertainty is statistical and the second systematic.

关键词： Bhabha scattering events integrated luminosity BESⅢ

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Measurement of integrated luminosities at BESⅢ for data samples at center-of-mass energies between 4.0 and 4.6 GeV

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chinese Physics C 2022年第11期46卷 53-63页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht R.Aliberti A.Amoroso M.R.An Q.An X.H.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov C.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.Ede Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du P.Egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng K Fischer M.Fritsch C.Fritzsch C.D.{5. H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco M.H.Gu C.Y Guan A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov T.T.Han W.Y.Han X.Q.hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold M.Himmelreich T.Holtmann G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Husken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia H.B.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kuhn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.li C.li C.H.li Cheng li D.M.li F.li G.li H.li H.li H.B.li H.J.li H.N.li J.Q.li J.S.li J.W.li Ke li L.J li L.K.li Lei li M.H.li P.R.li S.X.li S.Y.li T.li W.D.li W.G.li X.H.li X.L.li Xiaoyu li Z.Y.li H.liang H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby A.limphirat C.X.lin D.X.lin T.lin B.J.liu C.X.liu D.liu F.H.liu Fang liu Feng liu G.M.liu H.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.L.liu J.Y.liu K.L institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly institute of Modern Physics Lanzhou 730000China institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The integrated luminosities of data samples collected in the BESⅢ experiment in 2.16-2.17 at centerof-mass energies between 4.19 and 4.2. GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering *** integrated luminosities of old datasets collected in 2.10-2.14 are updated by considering corrections related to detector performance,offsetting the effect of newly discovered readout errors in the electromagnetic calorimeter,which can haphazardly occur.

关键词： integrated luminosity e^(+)e^(-)annihilation Bhabha scattering

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Observation of e^+e^-→D_s^+■^((*)0)K^- and study of the P-wave D_s mesons

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chinese Physics C 2019年第3期43卷 5-16页

作者： M.Ablikim M.N.Achasov S.Ahmed M.Albrecht M.Alekseev A.Amoroso F.F.An Q.An Y.Bai O.Bakina R.Baldini Ferroli Y.Ban K.Begzsuren D.W.Bennett J.V.Bennett N.Berger M.Bertani D.Bettoni F.Bianchi I.Boyko R.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao S.A.Cetin J.Chai J.F.Chang W.L.Chang G.Chelkov G.Chen H.S.Chen J.C.Chen M.L.Chen S.J.Chen Y.B.Chen W.S.Cheng G.Cibinetto F.Cossio H.L.Dai J.P.Dai A.Dbeyssi D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong Z.L.Dou S.X.Du J.Z.Fan J.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng M.Fritsch C.D.fu Y.fu Q.Gao X.L.Gao Y.N.Gao Y.G.Gao Z.Gao B.Garillon I.Garzia A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu S.Gu Y.T.Gu A.Q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov Z.Haddadi S.Han X.Q.hao F.A.Harris K.L.He F.H.Heinsius T.Held Y.K.Heng Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang J.S.Huang X.T.Huang X.Z.Huang Z.L.Huang N.Huesken T.Hussain W.Ikegami Andersson W.Imoehl M.Irshad Q.Ji Q.P.Ji X.B.Ji X.L.Ji H.L.Jiang X.S.Jiang X.Y.Jiang J.B.Jiao Z.Jiao D.P.Jin S.Jin Y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang M.Kavatsyuk B.C.Ke I.K.Keshk T.Khan A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth W.Kühn J.S.Lange P.Larin L.Lavezzi H.Leithoff C.li Cheng li D.M.li F.li F.Y.li G.li H.B.li H.J.li J.C.li J.W.li Ke li L.K.li Lei li P.L.li P.R.li Q.Y.li W.D.li W.G.li X.L.li X.N.li X.Q.li Z.B.li H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby C.X.lin D.X.lin B.liu B.J.liu C.X.liu D.liu D.Y.liu F.H.liu Fang liu Feng liu H.B.liu H.L liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.Y.liu K.Y.liu Kai liu Ke liu Q.liu S.B.liu X.liu Y.B.liu Z.A.liu Zhiqing liu Y.F.Long X.C.Lou H.J.Lu J.D.Lu J.G.Lu Y.Lu Y.P.Lu C.L.luo M.X.luo P.W.luo T.luo X.L.luo S.Lusso X.R.Lyu F.C.Ma H.L.Ma L.L.Ma M.M.Ma Q.M.Ma X.N.Ma X.X.Ma X.Y.Ma Y.M.Ma F.E.Maas M.Maggiora S.Maldaner Q.A.Malik A.Mangoni Y.J.Mao Z.P.Mao S.Marcello Z.X.Meng J.G.Messchendorp G.Mezzadri J.Min T.J.Min R.E.Mitchell X.H.Mo Y institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200443China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Ferrara I-44122FerraraItaly institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Shandong University Jinan 250100China Shanghai

Studies of e^+e~→D_s^+■^((*)0)K^-and the P-wave charmed-strange mesons are performed based on an e^+e^-collision data sample corresponding to an integrated luminosity of 5.7 pb^(-1) collected with the BESIII detector at s^(1/2.=4.600 GeV. The processes of e^+e^-→D_s^+■^(*0)K^- and D_s^+■~0K^- are observed for the first time and are found to be dominated by the modes D_s^+D_(s1)(2.36)^-and D_s^+D_(s2.~*(2.73)^-, respectively. The Born cross sections are measured to be σ~B(e^+e^-→D_s^+■^(*0)K^-) =(10.1±2.3±0.8) pb and σ~B(e^+e^-→D_s^+■~0K^-) =(19.4±2.3± 1.6) pb, and the products of Born cross section and the decay branching fraction are measured to be σ~B(e^+e^-→D_s^+D_(s1)(2.36)^-+c.c.)·B(D_(s1)(2.36)^-→■^(*0)K^-)=(7.5.1.8±0.7) pb and σ~B(e^+e^-→D_s^+D_(s2.~*(2.73)^-+ c.c.)·B(D_(s2.~*(2.73)^-→■~0 K^-)=(19.7 ± 2.9 ±2.0) pb. For the D_(s1)(2.36)^-and D_(s2.~*(2.73)^-mesons, the masses and widths are measured to be M(D_(s1)(2.36)^-)=(2.37.7±0.5.±3.1) MeV/c2. Γ(D_(s1)(2.36)^-) =(1.7 ±1.2.±0.6)MeV, and M(D_(s2.~*(2.73)^-)=(2.70.7±2.0 ±1.7) MeV/c^2. Γ(D_(s2.~*(2.73)^-)=(17.2.±3.6 ±1.1) MeV. The spin-parity of the D_(s2.~*(2.73)^-meson is determined to be J^p= 2.+. In addition, the processes e^+e^-→D_s^+■^((*)0)K^-are searched for using the data samples taken at four(two) center-of-mass energies between 4.416(4.5.1}) and 4.5.5.GeV, and upper limits at the 90% confidence level on the cross sections are determined.

关键词： cross section P-wave D_s mesons resonance parameters spin-parity BESIII

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Search for hidden-charm tetraquark with strangeness in e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.

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chinese Physics C 2023年第3期47卷 1-14页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi E.Bianco J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅 S.K.Choi 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hus{5.n N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤蒋沛成姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson S.Kabana N.Kalantar-Nayestanaki 康晓琳康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷天天雷祚弘 H.Leithoff M.Lellmann T.Lenz 李聪李翠李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁浩梁昊梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘成刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏卢泽辉罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak 裴宇鹏 M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of PetrochemicalTechnology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of AdvancedScience and Technology Beijing 100190China China University of Geosciences Wuhan 430074China COMSATS University Islamabad LahoreCampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China G.I.Budker institute of NuclearPhysics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany GuangxiNormal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan NormalUniversity Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly institute of Modern Physics Lanzhou 730000People's Republic of China institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DAricaChile Jilin Univers

We report a search for a heavier partner of the recently observed Z_(cs)(3985.^(-) state,denoted as Z_(cs)^('-),in the process e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.,based on e^(*)e^(-)collision data collected at the center-of-mass energies of √s=4.661,4.682.and 4.699 GeV with the BESIII *** Z_(cs)^('-) is of interest as it is expected to be a candidate for a hidden-charm and open-strange tetraquark.A partial-reconstruction technique is used to isolate K^(+)recoil-mass spectra,which are probed for a potential contribution from Z_(cs)^('-)→D_(s)^(∗−) D^(∗0 )+ *** find an excess of Z_(cs)^('-)→D_(s)^(*-)-D^(*0)(c.c.)candidates with a significance of 2.1o,after considering systematic uncertainties,at a mass of(412..5.0.7_(sat)±4.7_(syst.))MeV/c^(2..As the data set is limited in size,the upper limits are evaluated at the 90%confidence level on the product of the Born cross sections(σ^(Borm))and the branching fraction(B)of Z_(cs)^('-)→D_(s)^(*-)-D^(*0),under different assumptions of the Z_(cs)^('-) mass from 4.12. to 4.140 MeV and of the width from 10 to 5. MeV at the three center-of-mass *** upper limits of σ^(Born).B are found to be at the level of O(1)pb at each *** data samples are needed to confirm the Z_(cs)^('-) state and clarify its nature in the coming years.

关键词： electron-positron collision BESIl hadron spectroscopy tetraquark

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Observations of the Cabibbo-Suppressed decays Λ_(c)^(+)→nπ+π^(0),nπ^(+)π^(-)π^(+) and the Cabibbo-Favored decay Λ_(c)^(+)→nK^(-)π^(+)π^(+)

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chinese Physics C 2023年第2期47卷 1-18页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi E.Bianco J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅 S.K.Choi 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.Ede Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hus{5.n N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.Keshk A.Khoukaz R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘成刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak P.Patteri M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid C.F institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly institute of Modern Physics Lanzhou 730000China institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou Un

Using electron-positron annihilation data samples corresponding to an integrated luminosity of 4.5.fb-1,collected by the BESⅢdetector in the energy region between 45.9.5. MeV and 4698.82.MeV,we report the first observations of the Cabibbo-suppressed decaysΛ_(c)^(+)→nπ^(+)π^(0),Λ_(c)^(+)→nπ^(+)π^(-)π^(+),and the Cabibbo-favored decayΛ_(c)^(+)→nK^(-)π^(+)π^(+)with statistical significances of 7.9σ,7.8σ,and>10σ,*** branching fractions of these decays are measured to be B(Λ_(c)^(+)→nπ^(+)π^(0))=(0.64±0.09±0.02.%,B(Λ_(c)^(+)→nπ^(+)π^(-)π^(+))=(0.45.0.07±0.03)%,and B(Λ_(c)^(+)→nK^(-)π^(+)π^(+))=(1.90±0.08±0.09)%,where the first uncertainties are statistical and the second are *** find that the branching fraction of the decayΛ_(c)^(+)→nπ^(+)π^(0)is about one order of magnitude higher than that ofΛ_(c)^(+)→nπ^(+).

关键词： ∧_(c)^(+)baryon Branching fraction BESⅢdetector

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Search for the weak decayψ(3686)→■+c.c.

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chinese Physics C 2023年第1期47卷 19-27页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白旭红白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇董静董燎原董明义董翔杜书先 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩婷婷韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold M.Himmelreich 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄麟钦黄性涛黄燕萍黄震 T.Hus{5.n N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜侯兵姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert 柯百谦 I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J.li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid C.F.Redmer 任旷洁 A.Rivetti V.Rodin M.Rolo 荣刚 Ch.Rosn institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA AINFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly institute of Modern Physics Lanzhou 730000China institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou U

Using(448.1±2.9)×10^(6)ψ(3686)for the weak baryonic decayψ(3686)→Λc+∑-+c.c..The analysis procedure is optimized using a blinded *** significant signal is observed,and the upper limit on the branching fraction(B... 详细信息

关键词： weak decay upper limit BESIII detector

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Observation of e^(+)e^(-)→pppñπ-+c.c.

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chinese Physics C 2023年第4期47卷 16-25页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白旭红白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇董静董燎原董明义董翔杜书先 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩婷婷韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold M.Himmelreich 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄麟钦黄性涛黄燕萍黄震 T.Hus{5.n N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜侯兵姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert 柯百谦 I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J.li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu, 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid C.F.Redmer 任旷洁 A.Rivetti V.Rodin M.Rolo 荣刚 Ch.Ros institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China G.I.Budker institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly institute of Modern Physics Lanzhou 730000China B Ulaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou University Lanzhou 730000China liaoning Normal Unive

Using data taken at 2. center-of-mass energies between 4.16 and 4.70 GeV with the BESⅢdetector at the Beijing Electron Positron Collider corresponding to a total integrated luminosity of approximately 18.8 fb^(-1),the process e^(+)e^(-)→pppñπ+*** observed for the first time with a statistical significance of 11.5..The average Born cross sections in the energy ranges of(4.160,4.380)GeV,(4.400,4.600)GeV and(4.610,4.700)GeV are measured to be(2..5.5.7±1.2.fb,(46.3±10.6±2.5.fb and(5..0±9.4±3.2.fb,respectively,where the first uncertainties are statistical and the second are *** line shapes of the pñ and ppπ^(-)invariant mass spectra are consistent with phase space distributions,indicating that no hexaquark or di-baryon state is observed.

关键词： Multi-baryon channel hexaquark di-baryon states cross section measurement

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