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Evidence for particle acceleration approaching PeV energies in the W51 complex

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science Bulletin 2024年第18期69卷 2833-2841页

作者： LHAAsO Collaboration Zhen Cao F.Aharonian Axikegu y.x.Bai y.W.Bao D.Bastieri x.j.Bi y.j.Bi W.Bian A.V.Bukevich q.Cao W.y.Cao Zhe Cao j.Chang j.F.Chang A.M.Chen E.s.Chen H.x.Chen Liang Chen Lin Chen Long Chen M.j.Chen M.L.Chen q.H.Chen s.Chen s.H.Chen s.Z.Chen T.L.Chen y.Chen N.Cheng y.D.Cheng M.y.Cui s.W.Cui x.H.Cui y.D.Cui B.Z.Dai H.L.Dai Z.g.Dai Danzengluobu x.q.Dong K.K.Duan j.H.Fan y.Z.Fan j.Fang j.H.Fang K.Fang C.F.Feng H.Feng L.Feng s.H.Feng x.T.Feng y.Feng y.L.Feng s.gabici B.gao C.D.gao q.gao W.gao W.K.gao M.M.ge L.s.geng g.giacinti g.H.gong q.B.gou M.H.gu F.L.guo x.L.guo y.q.guo y.y.guo y.A.Han M.Hasan H.H.He H.N.He j.y.He y.He y.K.Hor B.W.Hou C.Hou x.Hou H.B.Hu q.Hu s.C.Hu D.H.Huang T.q.Huang W.j.Huang x.T.Huang x.y.Huang y.Huang x.L.ji H.y.jia K.jia K.jiang x.W.jiang Z.j.jiang M.jin M.M.Kang I.Karpikov D.Kuleshov K.Kurinov B.B.Li C.M.Li Cheng Li Cong Li D.Li F.Li H.B.Li H.C.Li jian Li jie Li K.Li s.D.Li W.L.Li W.L.Li x.r.Li xin Li y.Z.Li Zhe Li Zhuo Li E.W.Liang y.F.Liang s.j.Lin B.Liu C.Liu D.Liu D.B.Liu H.Liu H.D.Liu j.Liu j.L.Liu M.y.Liu r.y.Liu s.M.Liu W.Liu y.Liu y.N.Liu q.Luo y.Luo H.K.Lv B.q.Ma L.L.Ma x.H.Ma j.r.Mao Z.{2.n W.{2.tthumsiri H.j.Mu y.C.Nan A.Neronov L.j.Ou P.Pattarakijwanich Z.y.Pei j.C.qi M.y.qi B.q.qiao j.j.qin A.raza D.ruffolo A.sáiz M.saeed D.se{2.koz L.shao O.shchegolev x.D.sheng F.W.shu H.C.song yu.V.stenkin V.stepanov y.s. D.x.sun q.N.sun x.N.sun Z.B.sun j.Takata P.H.T.Tam q.W.Tang r.Tang Z.B.Tang W.W.Tian C.Wang C.B.Wang g.W.Wang H.g.Wang H.H.Wang j.C.Wang Kai Wang Kai Wang L.P.Wang L.y.Wang P.H.Wang r.Wang W.Wang x.g.Wang x.y.Wang y.Wang y.D.Wang y.j.Wang Z.H.Wang Z.x.Wang Zhen Wang Zheng Wang D.M.Wei j.j.Wei y.j.Wei T.Wen C.y.Wu H.r.Wu q.W.Wu s.Wu x.F.Wu y.s.Wu s.q.xi j.xia g.M.xiang D.x.xiao g.xiao y.L.xin y.xing D.r.xiong Z.xiong D.L.xu r.F.xu r.x.xu W.L.xu L.xue D.H.yan j.Z.yan T.yan C.W.yang C.y.yang F.yang F.F.yang L.L.yang M.j.yang r.Z.yang W.x.yang y.H.yao Z.g.yao L.q.yin N.yin x.H.you Z.y.you y.H.yu q.yuan H.yue H.D.Zeng T.x.Zeng W.Zeng M.Zha B.B.Zhang F.Zhang H.Zhang 不详 Key Laboratory of Particle Astrophysics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of sciences Beijing 100049China TIANFU Cosmic ray research Center ChengduChina Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 103980Heidelberg 69029Germany school of Physical science and Technology.s.hool of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and space science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Tsung-Dao Lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute for Nuclear research of russian Academy of sciences Moscow 117312Russia Hebei Normal university Shijiazhuang 050024China university of science and Technology of{2. Hefei 230026China state Key Laboratory of Particle Detection and Electronics China Key Laboratory of Dark Matter and space Astronomy&Key Laboratory of radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China research Center for Astronomical Computing Zhejiang LaboratoryHangzhou 311121China Key Laboratory for research in galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China school of Physics and Astronomy Yunnan UniversityKunming 650091China Key Laboratory of Cosmic rays(Tibet university) Ministry of EducationLhasa 850000China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(Zhuhai)&school of Physics(guangzhou)&sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China APC UniversitéParis Cité

Theγ-ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays(Crs)accelerated by the shock of supernova remnant(sNr)W51C and the dense molecular clouds in the adjacent star-forming region,***,the maximum acceleration capability of W51C for Crs remains *** on observations conducted with the Large High Altitude Air shower Observatory(LHAAsO),we report a significant detection ofγrays emanating from the W51 complex,with energies from 2.to 2.0 *** LHAAsO measurements,for the first time,extend theγ-ray emission from the W51 complex beyond 100 TeV and reveal a significant spectrum bending at tens of *** combining the"π^(0)-decay bump"featured data from Fermi-LAT,the broadbandγ-ray.s.ectrum of the W51 region can be well-characterized by a simple pp-collision *** observed spectral bending feature suggests an exponential cutoff at~400 TeV or a power-law break at~2.0 TeV in the Cr proton spectrum,most likely providing the first evidence of sNrs serving as Cr accelerators approaching the PeV ***,two young star clusters within W51B could also be theoretically viable to produce the most energeticγrays observed by *** findings strongly.s.pport the presence of extreme Cr accelerators within the W51 complex and provide new insights into the origin of galactic Crs.

关键词： UHE c-ray Cosmic rays sNr W51C star clusters

Optimization of performance of the KM2. full array using the Crab Nebula

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 s.gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 g.giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.ruffolo A.sáiz D.semikoz 邵澄宇邵琅 O.shchegolev 盛祥东舒富文宋慧超 {2..V.stenkin V.stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAAsO Collaboration Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of sciences Beijing 100049China Tianfu Cosmic ray research Center Chengdu 610000China Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany state Key Laboratory of Particle Detection and Electronics China university of science and Technology of{2. Hefei 230026China school of Physical science and Technology.s.hool of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and space science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal university Shijiazhuang 050024China Key Laboratory of Dark Matter and space Astronomy&Key Laboratory of radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for research in galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory of Cosmic rays(Tibet university) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(Zhuhai)&school of Physics(guangzhou)&sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China school of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air shower Observatory(LHAAsO)has been in operation since july *** its kilometer-square array(KM2.),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2.2. to August 2.2.,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2. array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy.s.ectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAAsO and other experiments.

关键词： γ-ray Crab Nebula significance

Further investigation on the fusion of ^(6)Li with ^(2.9)Bi target at near-barrier energies

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Chinese Physics C 2024年第7期48卷 106-117页

作者：张高龙焦振威张广鑫 M.r.Cortes 胡世鹏钱建强 D.Mengoni 屈卫卫李聪博郑云张焕乔孙慧斌王楠张春雷 j.j.Valiente-Dobón D.Testov M.Mazzocco A.gozzelino C.Parascandolo D.Pierroutsakou M.La Commara A.goasduff D.Bazzacco D.r.Napoli F.galtarossa F.recchia A.Illana s.Bakes I.Zanon s.Aydin g.de Angelis M.siciliano r.Menegazzo s.M.Lenzi j.L.Ferreira j.r.ngel serkan Akkoyun L.F.Canto j.Lubian school of Physics Beihang UniversityBeijing 100191China sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Instituto de Física Universidade Federal Fluminense24210-340NiteróiRio de JaneiroBrazil Institute for Advanced study in Nuclear Energy.s.fety Shenzhen UniversityShenzhen 518060China shenzhen Key Laboratory of research and Manufacture of High Purity germanium materials and Fetectors Shenzhen UniversityShenzhen 518060China INFN Sezione di PadovaPadovaItaly Dipartimento di fisica Astronomia dell'Universita di padova PadovaItaly state Key Laboratory of radiation Medicine and Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China china Institute of Atomic Energy Beijing 102413China The Key Laboratory of Beam Technology and Material Modification of ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China INFN Laboratori Nazionali di LegnaroI-35020 LegnaroItaly INFN Sezione di NapoliI-80126 NapoliItaly Dipartimento di Farmacia Universitàdi Napoli"Federico II"I-80131 NapoliItaly department of Natural and Mathematical sciences Faculty of EngineeringTarsus University33480 MersinTurkiye Physics Division Argonne National LaboratoryLemont-ILUSA Departamento de Matemaética Física e Computaç˜ao Universidade do Estado do Rio de JaneiroFaculdade de Tecnologia27537-000ResendeRio de JaneiroBrazil department of Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto de Física Universidade Federal do Rio de JaneiroCP 6852821941-972Rio de JaneiroBrazil

The complete and incomplete fusion cross sections for ^(6)Li+^(2.9)Bi were measured using the in-beamγ-ray method around the Coulomb *** cross sections of(deuteron captured)incomplete fusion(ICF)products were re-quantified experimentally for this reaction *** results reveal that the ICF cross section is equivalent to that of complete fusion(CF)above the Coulomb barrier and dominant near or below the Coulomb barrier.A theoretical calculation based on the continuum discretized coupled channel(CDCC)method was performed for the aforementioned CF and ICF cross sections;the result is consistent with the *** universal fusion function(UFF)was also compared with the measured CF cross section for different barrier parameters,demonstrating that the CF suppression factor is significantly influenced by the choice of potential,which can reflect both dynamic and static effects of breakup on the fusion process.

关键词： cross section incomplete fusion suppression factor weakly bound nuclei

PErsPECTIVEs IN MECHANICs OF HETErOgENEOUs sOLIDs

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Acta Mechanica solida sinica 2011年第1期24卷 1-26页

作者： C.q. Chen j.Z. Cui H.L. Duan x.q. Feng L.H. He g.K. Hu M.j. Huang y.Z. Huo B.H. ji B. Liu x.H. Peng H.j. shi q.P. sun j.x. Wang {2. Wang H.P. Zhao y.P. Zhao q.s. Zheng W.N. Zou department of Engineering Mechanics AML Tsinghua University Beijing 100084 China Academy of Mathematics and systems sciences Chinese Academy of Sciences Beijing 100190 China state Key Laboratory for Turbulence and Complex system and department of Mechanics and Aerospace Engineering College of Engineering Peking University Beijing 100871 China CAs Key Laboratory of Mechanical Behavior and Design of materials University of Science and Technology of China Hefei Anhui 230026 China school of Aerospace Engineering Beijing Institute of Technology Beijing 100081 China Institute for Advanced study Nanchang University Nanchang 330031 China Depariment of Mechanics and Engineering sciences Fudan University 220 Handa Road Shanghai 200433 China department of Mechanical Engineering Hong Kong University of Science and Technology Hong KongChina department of Mechanical Engineering Hong Kong University of Science and Technology Hong Kong China Institute of Engineering Mechanics Beijing Jiaotong University Beijing 100044 China state Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences Beijing 100190 China

The micro- and Nano-mechanics Working group of the Chinese society of Theoretical and Applied Mechanics organized a forum to discuss the perspectives, trends, and directions in mechanics of heterogeneous materials in january 2.10. The international journal, Acta Mechanica solida sinica, is de- voted to all fields of solid mechanics and relevant disciplines in {2., technology, and engineering, with a balanced coverage on analytical, experimental, numerical and applied investigations. On the occasion of the 30TM anniversary of Acta Mechanica solida sinica, its editor-in-chief, Professor q.s. Zheng invited some of the forum participants to review the state-of-the-art of mechanics of heterogeneous solids, with a particular emphasis on the recent research development results of Chinese scientists. Their reviews are organized into five research areas as reported in different sections of this paper. ~I firstly brings in fo- cus on micro- and nano-mechanics, with regards to several selective topics, including multiscale coupled models and computational methods, nanocrystal superlattices, surface effects, micromechanical damage mechanics, and microstructural evolution of metals and shape memory alloys. ~II shows discussions on multifield coupled mechanical phenomena, e.g., multi-fields actuations of liquid crystal polymer networks, mechanical behavior of materials under radiations, and micromechanics of heterogeneous materials. In ~III, we mainly address the multiscale mechanics of biological nanocomposites, biological adhesive surface mechanics, wetting and dewetting phenomena on microstructured solid surfaces. The phononic crystals and manipulation of elastic waves were elaborated in ~IV. Finally, we conclude with a series of perspectives on solid mechanics. This review will set a primary goal of future {2. research and engineering application on solid mechanics with the effort of social and economic development.

关键词： heterogeneous materials smart materials biological materials multiscale mechanics micro- and nano-mechanics damage and fracture constitutive relation elastic wave surface effects

Acceleration of 60 MeV proton beams in the commissioning experiment of the sULF-10 PW laser

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High Power Laser science and Engineering 2022年第4期10卷 36-44页

作者： A.x.Li C.y.qin H.Zhang s.Li L.L.Fan q.s.Wang T.j.xu N.W.Wang L.H.yu y.xu y.q.Liu C.Wang x.L.Wang Z.x.Zhang x.y.Liu P.L.Bai Z.B.gan x.B.Zhang x.B.Wang C.Fan y.j.sun y.H.Tang B.yao x.y.Liang y.x.Leng B.F.shen L.L.ji r.x.Li Z.Z.xu state Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China shanghai Tech university Shanghai 201210China Center of materials science and Optoelectronics Engineering University of Chinese Academy of SciencesBejing 100049China CAs Centerfor Excellence inUltra-intense Laser science Shanghai 201800China College of science University of Shanghai for Science and TechnologyShanghai 200093China department of Physics Shanghai Normal UniversityShanghai 200234China

We report the experimental results of the commissioning phase in the 10 PW laser beamline of the shanghai superintense Ultrafast Laser Facility.s.LF).The peak power reaches 2.4 PW on target without the last amplifying during the *** laser energy of 72.9 j is directed to a focal spot of approximately 6μm diameter(full width at half maximum)in 30 fs pulse duration,yielding a focused peak intensity around 2.0×10^(2.)W/cm^(2..The first laser-proton acceleration experiment is performed using plain copper and plastic ***-energy proton beams with maximum cut-off energy up to 62.5 MeV are achieved using copper foils at the optimum target thickness of 4μm via target normal sheath *** plastic targets of tens of nanometers thick,the proton cut-off energy is approximately 2. MeV,showing ring-like or flamented density *** experimental results reflect the capabilities of the sULF-10 PW beamline,for example,both ultrahigh intensity and relatively good beam *** optimization for these key parameters is underway,where peak laser intensities of 10^(2.)-10^(2.)w/cm^(2.are anticipated to support various experiments on extreme field physics.

关键词： high-energy proton source laser-plasma interaction ultraintense lasers

Number of j/ψ events at BEsIII

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Chinese Physics C 2022年第7期46卷 74-84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 K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi j.Bloms A.Bortone I.Boyko r.A.Briere H.Cai x.Cai A.Calcaterra g.F.Cao N.Cao s.A.Cetin j.F.Chang W.L.Chang g.Chelkov g.Chen H.s.Chen M.L.Chen s.j.Chen x.r.Chen y.B.Chen Z.j.Chen W.s.Cheng g.Cibinetto F.Cossio j.j.Cui x.F.Cu H.L.Dai j.P.Dai x.C.Dai A.Dbey.s. r.E.de Boer 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 x.Dong s.x.Du P.Egorov y.L.Fan j.Fang s.s.Fang y.Fang r.Farinelli L.Fava F.Feldbauer g.Felici C.q.Feng j.H.Feng M.Fritsch C.D.Fu y.gao y.gao I.garzia P.T.ge C.geng E.M.gersabeck A gilman K.goetzen L.gong W.x.g.ng W.gradl M.greco L.M.gu M.H.gu C..y.guan A.q.guo A.q.guo L.B.guo r.P.guo y.P.guo A.guskov T.T.Han W.y.Han {2.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 L.q.Huang x.T.Huang y.P.Huang Z.Huang T.Hussain N Husken W.Ikegami Andersson W.Imoehl M.Irshad s.jaeger s.janchiv q.ji q.P.ji x.B.ji x.L.ji y.y.ji H.B.jiang x.s.jiang j.B.jiao Z.jiao s.jin y.jin M.q.jing T.johansson N.Kalantar-Nay.s.anaki 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 M.g.Kurth 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.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.L.Li j.q.Li j.s.Li Ke Li L.K.Li Lei Li P.r.Li s.y.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.M.Liu Huanhuan Liu Huihui Liu j.B.Liu j.L.Liu j.y.Liu K.Liu K.y.Liu Ke Liu L.Liu M.H.Liu P.L.Liu q.Liu q.Liu s.B.Liu T.Liu T.Liu W.M.Liu x.Liu y.Liu y.B.Liu Z.A.Liu Z.q.Liu x.C.Lou F.x.Lu H.j.Lu j.D. Institute of High Energy Physics Beijing 100049China Beihang university Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum ruhr-university D-44780 BochumGermany Camnegie 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 Physies sBrAs(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 I-00044FrascatiItaly INFN sezione di Perugia I-06100PerugiaItaly university of Perugia I-06100PerugiaItaly university of Ferrara I-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physies 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.Physikaliches InstitutHeinricH-Buff-Ring 16D-35392 GiessenGermany Lanzhou university Lnzhou 730000China Liaoning Normal university Dalian 116029China Liaoning university Shenyang 110036China nanjing Normal university Nanjing 210023China nanjing Univ

Using inclusive decays of j/ψ aprecise determination of the number of j/ψ events collected with the BEsIII detector was *** the two data sets taken in 2.09 and 2.12.the numbers of j/ψ events were recalculated to be(2.4.0±1.3)×10^(6) and(1088.5±4.4)×10^(6),respectively;these numbers are in good agreement with the previous measurements. For the j/ψ sample taken in 2.17-2.19,the number of events was determined to be(8774.0±39.4)×10^(6).The total number of j/ψ events collected with the BEsIII detector was determined to be(10087±44)×10^(6),where the uncertainty is dominated by.s.stematic effects,and the statistical uncertainty is negligible.

关键词： number of j/ψevents BEsIII detector inclusive j/ψdecays

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.Dbey.s. 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.Fu y.Fu 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.g.ng 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 {2.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-Nay.s.anaki 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 {2.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

sulphate-ceria Composite Ceramics for Energy Environmental Co-generation Technology

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Sulphate-ceria Composite Ceramics for Energy Environmental C...

superconductivity in HfTe5 across weak to strong topological insulator transition induced via pressures

The 3～〔rd〕International Conference on High-Performance Ceramics(CICC-3)（1）

作者： x. r. Liu B. Zhu j. xu j.C. sun and Z. q. Mao department of Che{2.cal Engineering & Technology royal Institute of Technology (KTH) s-10044 stockholm swedengoeta Technology Developer International s-171 60 solna sweden department of Physical Che{2.stry Norwegian university science and Technology 7491Trondheim Norway Institute of materials and Technology Dalian Maritime university Dalian 11602. P. r. chinachina Association for Hydrogen Energy Institute of Nuclear and New Energy Technology Tsinghua university Beijing P. r. china

＜正＞ In this work ion conductivity and FC application were studied for the new type composite material based on sDC （samarium doped ceria） and Li2.O4. significant conductivity enhancement was achieved, e.g. 10-2.- 0.4 scm-1 for the sDC-Li2.O4 compared to 10-4 -10-2.scm-1 for the sDC between 400 and 650℃. some ion conductivity mechanisms were proposed correspondingly. Using the sDC-Li2.O4 composite materials as the electrolytes, we achieved high performances, 2.0-540 mWcm-2. for intermediate temperature （450-650℃） solid oxide FC （ITsOFC） applications. sulfates, typically Li2.O4, have an excellent chemical stability in sulfur containing atmosphere. The sulfate-ceria （sDC-Li2.OA） composite materials can thus meet the demands to develop the sulfur tolerant and H2. FC technologies, which was also demonstrated successfully with significant importance for both fundamental and applied research.

关键词： samarium doped ceria (sDC) Li2.O4 composite O2. and H+ conduction FC

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Superconductivity in HfTe5 across weak to strong topological...