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A simulation study on spatial and time resolution for a cost-effective positron emission particle tracking system

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Particuology 2024年第5期88卷 312-322页

作者： Josephine Oppotsch Matthias Steinke Miriam Fritsch Fritz-Herbert Heinsius Thomas Held Nikoline Hilse Viktor Scherer Ulrich wiedner Ruhr-Universität Bochum Institut für Experimentalphysik I44801 BochumGermany Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik44801 BochumGermany

This work is the second part of a simulation study investigating the processing of densely packed and moving granular assemblies by positron emission particle tracking (PEPT).Since medical positron emission tomography (PET) scanners commonly used for PEPT are very expensive,a PET-like detector system based on cost-effective organic plastic scintillator bars is being developed and tested for its *** this context,the spatial resolution of a resting positron source,a source moving on a freely designed model path,and a particle motion given by a discrete element method (DEM) simulation is studied using Monte Carlo simulations and the software toolkit *** not only extended the simulation and reconstruction to a moving source but also significantly improved the spatial resolution compared to previous work by adding oversampling and iteration to the reconstruction ***,in the case of a source following a trajectory developed from DEM simulations,a very good resolution of about 1 mm in all three directions and an average 3D deviation between simulated and reconstructed events of 2.3 mm could be ***,the resolution for realistic particle motion within the generic grate system (which is the test rig for further experimental studies) is well below the smallest particle *** simulation of the dependence of the reconstruction accuracy on tracer particle location revealed a nearly constant efficiency within the entire detector system,which demonstrates that boundary effects can be neglected.

关键词： Positron emission particle tracking Monte Carlo method Time-of-flight Plastic scintillators Silicon photomultipliers(SiPMs)

A simulation study for a cost-effective PET-like detector system intended to track particles in granular assemblies

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Particuology 2024年第1期84卷 117-125页

作者： Josephine Oppotsch Antonios Athanassiadis Miriam Fritsch Fritz-Herbert Heinsius Thomas Held Nikoline Hilse Viktor Scherer Matthias Steinke Ulrich wiedner Ruhr-Universität Bochum Institut für Experimentalphysik I44801 BochumGermany Ruhr-Universität Bochum Lehrstuhl für Energieanlagen und Energieprozesstechnik44801 BochumGermany

Since many industrial applications rely on the processing of densely packed and moving granular ma-terial,obtaining bulk internal information on the particle movement inside the reactors is of great *** information can be delivered by Positron Emission Particle Tracking(PEPT).By marking pellets with a positron-emitting radioisotope,the position of these tracer particles can be determined via the time-of-flight differences of the emitted gamma-ray *** current paper proposes a PET-like detector system based on cost-effective organic plastic scintillators instead of the more common but expensive inorganic *** system is currently under construction and was tested for its resolution and efficiency in this simulation *** Monte Carlo simulations and the software toolkit Geant4,three different geometries(an empty glass box,a generic grate system,and a cubic box of 1 m3 completely filled with pellets)were investigated,leading to a spatial resolution in the millimeter range and an efficiency,defined as the ratio of reconstructed decay locations to simulated decays,of 2.7%,1.4%,and 0.3%.

关键词： Positron emission particle tracking Geant4 Monte Carlo method Time-of-flight Plastic scintillators Silicon photomultipliers(SiPMs)

Differential diagnoses and treatment of lipedema

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Plastic and Aesthetic Research 2020年第3期7卷 1-10页

作者： Maria wiedner Donia Aghajanzadeh Dirk F.Richter Department for Plastic and Aesthetic Surgery Dreifaltigkeitskrankenhaus WesselingWesseling 50389Germany

Lipedema is a frequently unrecognized and misdiagnosed disorder of the fatty tissue of extremities and hips,which affects almost purely *** beginning of the disease usually occurs with hormonal changes,such as puberty,pregnancy,or *** suffer from pain,easy bruising,and disfigurement,which may lead to early immobility and social *** diagnosis and treatment are *** differentiation between obesity and lipedema is difficult,as these two different entities often occur *** differential diagnoses are lymphedema,benign lipohypertrophy,and Dercum's disease.A therapy targeting the underlying cause of lipedema is not available because the exact etiology of the disorder is not clarified *** physical therapy is the basic conservative treatment,which is usually necessary ***,liposuction has led to a paradigm shift in the treatment of *** purposes of this article are to describe the symptoms and treatment options of the still fairly unknown disease Lipedema and to show the distinctions to its differential diagnoses.

关键词： Lipedema lymphedema obesity symmetrical limb enlargement adipositas dolorosa

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时尚手机引发半导体封装工艺技术的挑战

电子工业专用设备 2005年第5期34卷 45-46页

作者： Peter wiedner Datacon Technology AG RadfeldAustria

1封装技术的挑战近年无线技术应用惊人发展,使得终端消费产品革新比以往任何一年都要频繁.手机产品的生命周期也变得越来越短了.为了实现这类产品的快速更新,电器技术方面的设计就不得不相应快速的简化.半导体产业提供先进的高密度功能... 详细信息

1封装技术的挑战近年无线技术应用惊人发展,使得终端消费产品革新比以往任何一年都要频繁.手机产品的生命周期也变得越来越短了.为了实现这类产品的快速更新,电器技术方面的设计就不得不相应快速的简化.半导体产业提供先进的高密度功能块整合封装技术正好与此相得益彰.因此为手机提供基本功能的元件数目就变得更少了,电器设计也因此变得更简单了.

关键词：半导体封装工艺技术手机半导体产业技术应用产品革新生命周期封装技术基本功能电器设计功能块高密度无线终端元件

Amplitude analysis of the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese Physics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Afedulidis X.C.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren N.Berger M.Berlowski M.Bertani D.Bettoni F.Bianchi E.Bianco 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.R.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen M.L.Chen S.J.Chen S.L.Chen S.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Y.Q.Chen Z.J.Chen Z.Y.Chen S.K.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich C.Q.Deng Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori B.Fang S.S.Fang W.X.Fang Y.Fang Y.Q.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng Y.T.Feng K.Fischer M.Fritsch C.D.Fu J.L.Fu Y.W.Fu H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck B.Ding X.X.Ding Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong M.C.Du S.X.Du Z.H.Duan P.Egorov Y.H.Fan J.Fang JA.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl S.Gramigna M.Greco M.H.Gu Y.T.Gu C.Y.Guan Z.L.Guan A.Q.Guo L.B.Guo M.J.Guo R.P.Guo Y.P.Guo A.Guskov J.Gutierrez K.L.Han T.T.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold T.Holtmann P.C.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.L.Hou B.Y.Hu H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang T.Hussain F.H\"olzken N.H\"usken N.in der Wiesche M.Irshad J.Jackson S.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji X.B.Ji X.L.Ji Y.Y.Ji X.Q.Jia Z.K.Jia D.Jiang H.B.Jiang P.C.Jiang S.S.Jiang T.J.Jiang X.S.Jiang Y.Jiang J.B.Jiao J.K.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing X.M.Jing T.Johansson S.Kabana N.Kalantar-Nayestanaki X.L.Kang X.S.Kang M.Kavatsyuk B.C.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf M.Kuessner X.Kui A.Kupsc W.K\"uhn J.J.Lane P.Larin L.Lavezzi T.T.Lei 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.B.Li H.J.Li H.N.Li Hui Li J.R.Li J.S.Li K.Li L.J.Li L.K.Li Lei Li M.H.Li P.R.Li Q.M.Li Q.X.Li R.Li S.X.Li T.Li W.D.Li W.G.Li X.Li X.H.Li X.L.Li X.Y.Li Y Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia 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 China University of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China 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 Kaifeng 475004China 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 Inner Mongolia University Hohhot 010021China Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the BESIII detector,a joint amplitude analysis is performed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decays D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(S)are observed in both *** the obtained amplitude model,the CP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of D^(0)→4πwhen used to determine the CKM angleγ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BESIII D^(0)meson decays amplitude analysis CP-even fraction

Determination of the number of J/ψ events with J/ψ → inclusive decays

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Chinese Physics C 2012年第10期36卷 915-925页

作者：麦迪娜 M. N. Achasov D. J. Ambrose 安芬芬安琪安正华白景芝班勇 J. Becker N. Berger M. Bertani 边渐鸣 E. Boger O. Bondarenko I. Boyko R. A. Briere V. Bytev 蔡啸 A. Calcaterra 曹国富常劲帆 G. Chelkov 陈刚陈和生陈江川陈玛丽陈申见陈晔陈元柏程和平初元萍 D. Cronin-Hennessy 代洪亮代建平 D. Dedovich 邓子艳 A. Denig I. Denysenko M. Destefanis 丁伟民丁勇董燎原董明义杜书先方建房双世 L. Fava F. Feldbauer 封常青 R. B. Ferroli 傅成栋傅金林高原宁耿聪 K. Goetzen 龚文煊 W. Gradl M. Greco 顾旻皓顾运厅管颖慧郭爱强郭立波郭玉萍韩艳良郝喜庆 F. A. Harris 何康林何苗何振亚 T. Held 衡月昆侯治龙胡海明胡继峰胡涛黄彬黄光明黄金书黄性涛黄燕萍 T. Hussain 姬长胜纪全季晓斌季筱璐贾卢魁姜丽丽江晓山焦健斌焦铮金大鹏金山景繁凡 N. Kalantar-Nayestanaki M. Kavatsyuk W. Kuehn 赖蔚 J. S. Lange 潘振声李春花李澄李翠李德民李飞李刚李海波李家才李康李蕾李宁博李秋菊李绍莉李卫东李卫国李晓玲李小男李学潜李秀荣李志兵梁昊梁勇飞梁羽铁廖广瑞廖小涛刘北江 C. L. Liu 刘春秀刘春燕刘福虎刘芳刘峰刘虎刘宏邦刘汇慧刘怀民刘红薇刘觉平刘魁勇刘凯刘坤刘佩莲刘树彬刘翔刘晓海刘勇刘豫斌刘振安刘志强刘智青 H. Loehner 鲁公儒吕海江吕军光吕绮雯吕晓睿卢云鹏罗成林罗民兴罗涛罗小兰吕蒙马长利马凤才马海龙马秋梅马斯马天马晓妍 Y. Ma F. E. Maas M. Maggiora Q. A. Malik 毛虎冒亚军毛泽普 J. G. Messchendorp 闵建闵天觉 R. E. Mitchell 莫晓虎 C. Morales Morales C. Motzko N. Yu. Muchnoi Y. Nefedov 宁洁 I. B. Nikolaev 宁哲马鹏欧阳群 S. Pacetti 卞正烷 M. Pelizaeus 彭海平 K. Peters 平加伦平荣刚 R. Poling E. Prencipe C. S. J. Pun 祁鸣钱森乔从丰秦小帅秦瑶秦中华邱进发 K. H. Rashid 荣刚阮向东 A. Sarantsev B. D. Schaefer J. Schulze 邵明沈成平沈肖雁盛华义 M. R. Shepherd 宋新颖 S. Spataro B. Spruck 孙德辉孙功星孙俊峰孙胜森孙晓东孙勇杰孙永昭孙志嘉孙振田唐昌建唐晓 E. H. Thorndike 田浩来 D. Toth M. Ullrich G. S. Varner 王斌王博群王科王亮亮王灵淑王萌王平王佩良王强王庆娟王思广王雄飞汪晓莲王雅迪王贻芳王亚乾王铮王志刚王至勇魏代会 P. Weidenkaff 文群刚文硕频 M. Werner U. wiedner 伍灵慧吴宁吴硕星吴蔚吴智夏力钢肖振军谢宇广修青磊许国发徐光明徐昊徐庆君徐新平徐晔许志蕊薛飞薛镇严亮鄢文标颜永红杨洪勋杨涛杨迎杨永栩叶桦叶梅叶铭汉俞伯祥喻纯旭俞洁晟于帅鹏苑长征袁文龙袁野 A. A. Zafar A. Zallo 曾云张丙新张炳云张长春张达华张宏浩章红宇张杰张金国张敬庆张家文张建勇张景芝张雷张书华张太锐张晓杰张学尧张瑶张银鸿张艳硕张子平张振宇赵光赵海升赵京伟赵凯旋赵雷赵玲赵明刚赵强赵书俊赵天池赵祥虎赵豫斌赵政国 A. Zhemchugov 郑建平郑阳恒郑志鹏钟彬 J. Zhong 周莉周晓康周小蓉朱程朱凯朱科军朱世海朱相雷朱兴旺朱亚敏朱永生朱自安庄建邹冰松邹佳恒左嘉旭 Institute of High Energy Physics G.I. Budker Institute of Nuclear Physics SB RAS (BINP) Novosibirsk 630090 Russia University of Rochester Rochester New York 14627 USA University of Science and Technology of China Peking University Bochum Ruhr-University INFN Laboratori Nazionali di Frascati University of Minnesota Minneapolis Joint Institute for Nuclear Research also at the Moscow Institute of Physics and Technology Moscow Russia KVI/University of Groningen 9747 AA Groningen The Netherlands Carnegie Mellon University Nanjing University Huangshan College University of Minnesota Minneapolis MN 55455 USA Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45 55099 Mainz Germany on leave from the Bogolyubov Institute for Theoretical Physics Kiev Ukraine University of Turin and INFN Turin Italy Shandong University Liaoning University Zhengzhou University University of Piemonte Orientale and INFN (Turin) Bochum Ruhr-University 44780 Bochum Germany Tsinghua University GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 Darmstadt Germany GuangXi University Graduate University of Chinese Academy of Sciences Nankai University Nanjing Normal University University of Hawaii Honolulu Hawaii 96822 USA Huazhong Normal University Henan Normal University University of the Punjab Universitaet Giessen 35392 Giessen Germany The University of Hong Kong Pokfulam Hong Kong China Hangzhou Normal University Seoul National University Sun Yat-Sen University Sichuan University The Chinese University of Hong Kong Shatin N.T. Hong Kong China Carnegie Mellon University Pittsburgh PA 15213 USA Shanxi University Henan University of Science and Technology Luoyang 471003 China Wuhan University Lanzhou University Zhejiang University Helmholtz Institute Mainz J.J. Becherweg 45D 55099 Mainz Germany Indiana University Bloomington Indiana 47405 USA University of Perugia and INFN I-06100 Perugia Italy also at the PNPI Gatchina Russia now at Nagoya University Nagoya Japan China Center o

The number of J/ψ events collected with the BES detector at the BEPC from June 12 to July 28, 2009 is determined to be （225.3 ± 2.8） × 10^ 6 using J/ψ→inclusive events, where the uncertainty is the systematic e... 详细信息

关键词： number of J/ψ events BES detector J/ψ →inclusive events

Observation of a p mass threshold enhancement in ψ′→π+π-J/ψ(J/ψ→γp) decay

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Chinese Physics C 2010年第4期34卷 421-426页

作者：麦迪娜 M. N. Achasov 安磊安琪安正华白景芝班勇 N. Berger 边渐鸣 I. Boyko R. A. Briere V. Bytev 蔡啸曹国富曹学香常劲帆 G. Chelkov 陈刚陈和生陈江川陈丽平陈玛丽陈鹏陈申见陈元柏初元萍 D. Cronin-Hennessy 代洪亮代建平 D. Dedovich 邓子艳 I. Denysenko M. Destefanis 丁勇董燎原董明义杜书先段麦英方建封常青傅成栋傅金林高原宁耿聪 K. Goetzen 龚文煊 M. Greco S. Grishin 顾运厅郭爱强郭立波郭玉萍韩少卿 F. A. Harris 何康林何苗何振亚衡月昆侯治龙胡海明胡继峰胡涛胡小为黄彬黄光明黄金书黄性涛黄燕萍姬长胜纪全季晓斌季筱璐贾卢魁姜丽丽江晓山焦健斌金大鹏金山 S. Komamiya W. Kuehn S. Lange 梁干庄李澄李翠李德民李飞李刚李海波李捷李家才李蕾李陆李秋菊李卫东李卫国李晓玲李小男李学潜李秀荣李玉晓李志兵梁昊梁泰然 Y.T. Liang 梁勇飞廖广睿廖小涛刘北江刘春秀刘春燕刘福虎刘芳刘峰刘冠川刘虎刘宏邦刘怀民刘红薇刘健刘觉平刘坤刘魁勇刘树彬刘晓海刘玉斌刘艳芳刘衍文刘勇刘振安鲁公儒吕军光吕绮雯吕晓睿卢云鹏罗成林罗民兴Zhejiang University 罗涛罗小兰马长利马凤才马海龙马秋梅马想马骁妍 M. Maggiora 冒亚军毛泽普闵建莫晓虎 N. Yu. Muchnoi Y. Nefedov 宁飞鹏 S. L. Olsen 欧阳群 M. Pelizaeus K. Peters 平加伦平荣刚 R. Poling 潘振声祁鸣钱森乔从丰邱进发荣刚阮向东 Sarantsev 邵明沈肖雁盛华义 S. Sonoda S. Spataro B. Spruck 孙德辉孙功星孙俊峰孙胜森孙晓东孙勇杰孙永昭孙志嘉孙振田唐昌建唐晓唐秀福田浩来 D. Toth G. S. Varner 万霞王博群王纪科王科王亮亮王灵淑王平王佩良王强王思广王晓东汪晓莲王雅迪王贻芳王亚乾王铮王志刚王至勇魏代会文硕频 U. wiedner 伍灵慧吴宁吴元明吴智肖振军谢宇广许国发徐光明徐昊徐敏徐明徐新平徐晔许咨宗薛镇严亮鄢文标颜永红杨洪勋杨明杨璞杨世明杨永栩叶梅叶铭汉俞伯祥喻纯旭俞玲苑长征袁野曾云张丙新张炳云张长春张达华张宏浩章红宇张家文张建勇张景芝张雷张书华张学尧张瑶张银鸿张子平赵川赵海升赵家伟赵京伟赵雷赵玲赵明刚赵强赵书俊赵祥虎赵豫斌赵政国 A. Zhemchugov 郑波郑建平郑阳恒郑志鹏钟彬周莉周中良朱程朱凯朱科军朱启明朱兴旺朱永生朱自安庄建邹冰松邹佳恒左嘉旭 P. Zweber Institute of High Energy Physics CAS G.I. Budker Institute of Nuclear Physics SB RAS (BINP) Guangxi University University of Science and Technology of China Peking University Joint Institute for Nuclear Research Carnegie Mellon University the Moscow Institute of Physics and Technology Nanjing University University of Minnesota the Bogolyubov Institute for Theoretical Physics University of Turin and INFN Liaoning University Zhengzhou University Shanxi University Tsinghua University GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Nankai University Nanjing Normal University University of Hawaii Graduate University of Chinese Academy of Sciences Huazhong Normal University Henan Normal University Shandong University The University of Tokyo Universitaet Giessen The University of Hong Kong Sun Yat-Sen University Sichuan University Guangxi Normal University The Chinese University of Hong Kong Wuhan University Seoul National University Bochum Ruhr-University China Center of Advanced Science and Technology currently at Suzhou University Hunan University

The decay channel ψ′→ π 〉＋π^-J/ψ（J/ψ 〉 γp^-p） is studied using a sample of 1.06 × 10^8 ψ′ events collected by the BESIII experiment at BEPCII. A strong enhancement at threshold is observed in the p^-p invariant mass spectrum. The enhancement can be fitted with an S-wave Breit-Wigner resonance function with a resulting peak mass of M = 1861-13^＋6 （stat）-26^＋7 （syst） MeV/c^2 and a narrow width that is Г 〈 38 MeV/c^2 at the 90% confidence level. These results are consistent with published BESII results. These mass and width values do not match with well established mesons.

关键词： p^-p threshold enhancement

Observation of the Y(4230)and a new structure in e^(+)e^(-)→K^(+)K^(-)J/Ψ

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Chinese Physics C 2022年第11期46卷 7-21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 陈琛陈刚陈和生陈玛丽陈申见 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.Ede 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 葛潘婷耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 顾旻皓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 T.Holtmann 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 Z.Huang T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv Q.Ji 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 M.Kavatsyuk 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 李聪李翠李春花李澄李德民李飞李刚李贺 H.Li 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紫源梁浩梁昊梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.Libby A.Limphirat C.X.Lin 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 FEMaas 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 H.Muramatsu Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥 Y.Pan A.Pathak A.Pathak M.Pelizaeus 彭海平 K.Peters J.Pettersson 平加伦平荣刚 S.Plura S.Pogodin R.Poling V.Prasad 齐法制齐航漆红荣祈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 S.Q.Qu 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 cross sections of e^(+)e^(-)→K^(+)K^(-)J/Ψat center-of-mass energies from 4.127 to 4.600 GeV are measured based on 15.6 fb-1data collected with the BESⅢ detector operating at the BEPCⅡ storage *** resonant structures are observed in the line shape of the cross *** mass and width of the first structure are measured to be(4225.3±2.3±21.5)MeV and(72.9±6.1±30.8)MeV,*** are consistent with those of the established Y(4230).The second structure is observed for the first time with a statistical significance greater than 8σ,denoted as Y(4500).Its mass and width are determined to be(4484.7±13.3±24.1)MeV and(111.1±30.1±15.2)MeV,*** first presented uncertainties are statistical and the second ones are *** product of the electronic partial width with the decay branching fractionΓ(Y(4230)→e^(+)e^(−))B(Y(4230)→K^(+)K^(−)J/Ψ)is reported.

关键词： Y states charmonium-like states BESⅢ

Evidence for e^+e^-→γχ_(c1,2) at center-of-mass energies from 4.009 to 4.360 GeV

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Chinese Physics C 2015年第4期39卷 1-9页

作者：麦迪娜 M.N.Achasov 艾小聪 O.Albayrak M.Albrecht D.J.Ambrose A.Amoroso 安芬芬安琪白景芝 R.Baldini Ferroli 班勇 D.W.Bennett J.V.Bennett M.Bertani D.Bettoni 边渐鸣 F.Bianchi E.Boger O.Bondarenko I.Boyko R.A.Briere 蔡浩蔡啸 O.Cakir A.Calcaterra 曹国富 S.A.Cetin 常劲帆 G.Chelkov 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 G.Cibinetto D.Cronin-Hennessy 代洪亮代建平 A.Dbeyssi D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefani F.De Mori 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 L.Fava F.Feldbauer G.Felici 封常青 E.Fioravanti M.Fritsch 傅成栋高清高原宁高榛 I.Garzia K.Goetzen 龚文煊 W.Gradl M.Greco 顾旻皓顾运厅管颖慧郭爱强郭立波郭墩郭玥 Y.P.Guo Z.Haddadi A.Hafner 韩爽韩艳良 F.A.Harris 何康林何振亚 T.Held 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 T.Hussain 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 T.Johansson A.Julin N.Kalantar-Nayestanaki 康晓琳康晓珅 M.Kavatsyuk B.C.Ke R.Kliemt B.Kloss O.B.Kolcu B.Kopf M.Kornicer W.Kuehn A.Kupsc 赖蔚 J.S.Lange M.Lara P.Larin 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 C.L.Liu 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 H.Loehner 娄辛丑吕海江吕军光鲁睿其卢宇卢云鹏罗成林罗民兴 T.Luo 罗小兰吕蒙吕晓睿马凤才马海龙马连良马秋梅马斯马天马旭宁马骁妍 F.E.Maas M.Maggiora Q.A.Malik 冒亚军毛泽普 S.Marcello J.G.Messchendorp 闵建闵天觉 R.E.Mitchell 莫晓虎莫玉俊 C.Morales Morale K.Moriya N.Yu.Muchnoi H.Muramatsu Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛顺利牛讯伊马鹏欧阳群 S.Pacetti P.Patteri M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 R.Poling 濮亚男祁鸣钱森乔从丰秦丽清覃拈秦小帅秦瑶秦中华邱进发 K.H.Rashid C.F.Redmer 任海龙 M.Ripka 荣刚阮向东 V.Santoro A.Sarantsev M.Savrié K.Schoenning S.Schumann 单葳邵明沈成平沈培迅沈肖雁盛华义 M.R.Shepherd 宋维民宋欣颖 S.Sosio S.Spataro B.Spruck 孙功星孙俊峰孙胜森孙勇杰孙永昭孙志嘉孙振田唐昌建唐晓 I.Tapan E.H.Thorndike M.Tiemens D.Toth M.Ullrich I.Uman G.S.Varner 王斌王滨龙王东王大勇王科王亮亮王灵淑王萌王平王佩良王庆娟王思广王炜王雄飞 Yadi 王贻芳王亚乾王铮王志刚王志宏王至勇 T.Weber 魏代会韦江波 P.Weidenkaff 文硕频 U.wiedner M.Wolke 伍灵慧吴智夏力钢夏宇肖栋肖振军谢宇广许国发徐雷徐庆君徐庆年徐新平严亮鄢文标闫文成颜永红杨洪勋杨柳杨迎杨永栩叶桦叶梅叶铭汉殷俊昊俞伯祥喻纯旭于海旺俞洁晟苑长征袁文龙袁野 A.Yuncu A.A.Zafar A.Zallo 曾云张丙新张炳云张驰张长春张达华张宏浩章红宇张佳佳张杰 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 Germany Guangxi University Nanjing Normal University University of Hawaii Central China Normal University Henan Normal University Shandong University University of the Punjab Uppsala University Currently at Istanbul Arel University Justus Liebig University Giessen Ⅱ. Physikalisches Institut Seoul National University Hangzhou Normal University University of Chinese Academy of Sciences Sun Yat-Sen University Sichuan University Guangxi Normal University Shanxi University Henan University of Science and Technology University of Texas at Dallas Hunan University Zhejiang University COMSATS Institute of Information Technology INFN and University of Perugia GSI Helmholtzcentre for Heavy Ion Research Gmb H the PNPI University of Ferrara Indiana University Bloomington Uludag University Soochow University China Center of Advanced Science and Technology Bogazici University University of South China

Using data samples collected at center-of-mass energies of √s=4.009, 4.230, 4.260, and 4.360 GeV with the BES0 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% con dence level （C.L.） are determined at each center-of-mass energy.

关键词： heavy quarkonia decays of hadronic electron-positron collisions hadron production by