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journal of Advanced Dielectrics 2013年第2期3卷 59-63页

作者： Y.Q.Tan j.l.zhang C.l.Wang School of Physics State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100P.R.China

In order to obtain both high piezoelectric property and good temperature stability in BaTiO_(3)-based ceramics in the common usage temperature range,Sn4þand Zr4þare co-doped into BaTiO3 ceramics according to the formula of Ba(Ti_(0.96)Sn_(x)Zr_(0.04-x))O_(3)(BTSZ)(x=0.01-0.4)with 1 mol%CuO being added as sintering-aid in this *** CuO-modified BTSZ ceramics show both high piezoelectric properties and good temperature ***,the CuO-modified Ba(Ti_(0.96)Sn_(x)Zr_(0.04-x))O_(3)ceramic displays the high piezoelectric properties of d_(33)=350 pC/N,k_(p)=49.5%at room-temperature and a weak temperature dependence of kp in the temperature range of15C and ***,the CuO-modified Ba(Ti_(0.96)Sn_(x)Zr_(0.04-x))O_(3)ceramic shows stable thermal aging behavior with the d33 being almost unchanged until the aging temperature of 100C,which is even higher than its Curie *** high piezoelectric properties of CuO-modified Ba(Ti_(0.96)Sn_(x)Zr_(0.04-x))O_(3)ceramic were ascribed to the dense microstructure with small and uniform grain size *** stable thermal aging behavior can be explained by the aging effect based on the defect dipolar model.

关键词： lead-free piezoelectric materials BaTiO_(3)-based ceramics high piezoelectric activity temperature stabilities defect dipolar

A perspective on the promoting effect of Ir and Au on Pd toward the ethanol oxidation reaction in alkaline media

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Frontiers in Energy 2018年第4期12卷 501-508页

作者： S.Y.SHEN Y.G.GUO G.H.WEI l.X.lUO F.lI j.l.zhang Institute of Fuel Cells School of Mechanical EngineeringMOE Key Laboratory of Power & Machinery EngineeringShanghai Jiao Tong UniversityShanghai 200240China SjTU-Paris Tech Elite Institute of Technology Shanghai Jiao Tong UniversityShanghai 200240China

There remain great challenges in developing highly efficient electrocatalysts with both high activity and good stability for the ethanol oxidation reaction in alkaline media. Herein, two architectures of tri-metallic PdIrAu/C electrocatalysts are designed and the promoting effect of Au and Ir on Pd toward the ethanol oxidation reaction (EOR) in alkaline media is investigated in detail. On the one hand, the tri-metallic Pd7Au7Ir/C electrocatalyst with a solid solution alloy architecture is less active relative to Pd7Ir/C and Pd/C while the stabilizing effect of Au leads to both a higher activity and a lower degradation percentage after 3000 cycles of the accelerated degradation test (ADT) on Pd7Au7Ir/C than those on Pd7Ir/C. On the other hand, the tri-metallic Pd7Ir@(1/3Au)/C electrocatalyst with a near surface alloy architecture delivers a much higher activity with an improvement up to 50.4% compared to Pd7Ir/C. It is speculated that for the tri-metallic Pd7Ir@(1/3Au)/C electrocatalyst, certain Au atoms are well designed on surfaces to introduce an electronic modification, thus leading to an anti-poisoning effect and improving the EOR activity.

关键词： fuel cells catalysts ethanol oxidation alkaline media solid solution alloy near surface alloy

基于MRI影像组学特征无创预测低级别胶质瘤病人的总体生存率和化疗效果

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国际医学放射学杂志 2021年第3期44卷 367-368页

作者： j.T.Wang X.j.Zheng j.l.zhang H.Xue l.j.Wang R.jing 卢明明

摘要目的建立并验证一种基于影像组学特征的方法来预测低级别胶质瘤病人的总体生存率和化疗效果。方法从横断面液体衰减反转恢复（FlAIR）影像和增强T;W(CE-

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Studies of the 2α and 3α channels of the ^(12)C+^(12)C reaction in the range of E_(c.m.)=8.9 MeV to 21 MeV using the active target Time Projection Chamber

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Chinese Physics C 2022年第10期46卷 116-125页

作者： X.Y.Wang N.T.zhang Z.C.zhang C.G.lu T.l.Pu j.l.zhang l.M.Duan B.S.Gao K.A.li Y.T.li Y.Qian l.H.Ru B.Wang X.D.Xu H.Y.Zhao W.P.lin Z.W.Cai B.F.ji Q.T.li j.Y.Xu X.D.Tang joint department for nuclear physics Institute of Modern Physics and Lanzhou UniversityChinese Academy of SciencesLanzhou 730000China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Key laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China School of Physics and State Key laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China

The ^(12)C+^(12)C fusion reaction was studied in the range of E_(c.m.)=8.9 to 21 MeV using the active-target Time Projection *** full information on all tracks of the reaction products,cross sections of the^(12)C(^(12)C,^(8)Be)^(16)O_(g.s.)channel and the ^(12)C(^(12)C,3a)^(12)C channel could be measured down to the level of a few *** ^(12)C(^(12)C,^(8)Be)^(16)O_(g.s.)reaction channel was determined to be 10_(-8)^(+24) mb at E_(c.m.)=11.1 MeV,supporting the direct a transfer reaction *** ^(12)C(^(12)C,3α)^(12)C reaction channel was studied for the first time using an exclusive *** result does not confirm the anomaly behavior reported in the previous inclusive measurement by Kolata et al.[***.C 21,579(1980)].Our comparisons with statistical model calculations suggest that the 3 a channel is dominated by the fusion evaporation process at E_(c.m.)>19 *** additional contribution of the 3 a channel increases the fusion reaction cross section by 10% at energies above 20 *** also find that an additional reaction mechanism is needed to explain the measured cross section at E_(c.m.)l model prediction vanishes.

关键词： fusion cross section Coulomb barrier Time Projection Chamber active target

The high-energy particle package onboard CSES

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Radiation Detection Technology and Methods 2019年第3期3卷 45-55页

作者： X.Q.li Y.B.Xu Z.H.An X.H.liang P.Wang X.Y.Zhao H.Y.Wang H.lu Y.Q.Ma X.H.Shen X.Y.Wen H.Wang D.l.zhang F.Shi W.X.Peng M.Gao X.X.Yu j.Z.Wang Y.j.zhang j.l.zhang j.zhang H.X.li j.R.Zeng Y.F.Nan Institute of High Energy Physics CASBeijing 100049China Institute of Crustal Dynamics CEABeijing 100085China Nanchang Hangkong University Nanchang 330063China Northwest University Xi’an 710127China

Introduction The China Seismo-Electromagnetic Satellite(CSES)aims to monitor space electromagnetic fields,ionospheric plasma,high-energy charged particles and other features of the global space *** high-energy particle package(HEPP),which can effectively detect the energy spectrum,flux and pitch angle distribution of space electrons and protons,and soft X-ray emission from solar flares,is one of the main payloads of *** and methods In this study,we designed,developed and calibrated the high-energy particle package and launched it into orbit with *** consists of the high-energy detector(HEPP-H),the low-energy detector(HEPP-l),and the solar X-ray monitor(HEPP-X).The three sub-detectors mainly use silicon detector and crystal calorimeter detection *** launching,we calibrated the three sub-detectors in detail by using radiation source and accelerator *** All the three sub-detectors have good energy *** launching into orbit,the space energetic particles and X-ray distribution detected by HEPP are consistent with *** performance indices of the detector reach the advanced level of the same kind of detector in the *** HEPP has a wide energy detection range,good energy resolution and high angular resolution ability for electrons and *** will play an important role in the study of space particle response and space physics of seismic activity.

关键词： ZH-1 CSES HEPP High-energy particle Radiation belt

High performance of(KxNa1-x)0.98li0.02(Nb0.82-yTa0.18Sby)O3 lead-free piezoelectric ceramics

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High performance of(KxNa1-x)0.98Li0.02(Nb0.82-yTa0.18Sby)O3 ...

Geometrical reconstruction of fluorescence events observed by the lHAASO experiment

2011年全国压电和声波理论及器件应用研讨会

作者： Y.Gao,j.l.zhang,~* F.Q.Guo,Y.l.Qing and C.l.Wang School of Physics,State Key laboratory of Crystal Materials.Shandong University,jinan,P.R.China

lead-free piezoelectric materials that can replace the current Pb(Zr,Ti)03-based piezoelectric ceramics have attracted much attention in recent years from the viewpoint of environmental *** this presentation,we will report the study result obtained in a series of(KNali(NbTaSb)O ceramics,which are prepared by the conventional solid-state reaction *** has been found that crystalline structure changes from orthorhombic

关键词： (K,Na)NbO3-based ceramics Phase coexistence Piezoelectric properties Temperature stability

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Chinese Physics C 2021年第4期45卷 416-425页

作者： F.Aharonian Q.An Axikegu l.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.j.Bi Y.j.Bi H.Cai j.T.Cai Z.Cao Z.Cao j.Chang j.F.Chang X.C.Chang B.M.Chen j.Chen l.Chen l.Chen l.Chen M.j.Chen M.l.Chen Q.H.Chen S.H.Chen S.Z.Chen T.l.Chen X.l.Chen Y.Chen N.Cheng Y.D.Cheng S.W.Cui X.H.Cui Y.D.Cui B.Z.Dai H.l.Dai Z.G.Dai Danzengluobu D.della Volpe B.DEtorre Piazzoli X.j.Dong j.H.Fan Y.Z.Fan Z.X.Fan j.Fang j.Fang C.F.Feng l.Feng S.H.Feng Y.l.Feng B.Gao C.D.Gao Q.Gao W.Gao M.M.Ge l.S.Geng G.H.Gong Q.B.Gou M.H.Gu j.G.Guo X.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He j.C.He S.l.He X.B.He Y.He M.Heller Y.K.Hor C.Hou X.Hou H.B.Hu S.Hu S.C.Hu X.j.Hu D.H.Huang Q.l.Huang W.H.Huang X.T.Huang Z.C.Huang F.ji X.l.ji H.Y.jia K.jiang Z.j.jiang C.jin D.Kuleshov K.levochkin B.B.li C.li C.li F.li H.B.li H.C.li H.Y.li j.li K.li W.l.li X.li X.li X.R.li Y.li Y.Z.li Z.li Z.li E.W.liang Y.F.liang S.j.lin B.liu C.liu D.liu H.liu H.D.liu j.liu j.l.liu j.l.liu j.S.liu j.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.N.liu Z.X.liu W.j.long R.lu H.K.lv B.Q.Ma l.l.Ma X.H.Ma j.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y..Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi D.Ruffolo V.Rulev A.Saiz l.Shao O.Shchegolev X.D.Sheng j.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wang C.Wang H.Wang H.G.Wang j.C.Wang j.S.Wang l.P.Wang l.Y.Wang R.N.Wang W.Wang W.Wang X.G.Wang X.j.Wang X.Y.Wang Y.D.Wang Y.j.Wang Y.P.Wang Z.Wang Z.Wang Z.H.Wang Z.X.Wang D.M.Wei j.j.Wei Y.j.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.X.Wu X.F.Wu S.Q.Xi j.Xia j.j.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.l.Xin Y.Xing D.l.Xu R.X.Xu l.Xue D.H.Yan C.W.Yang F.F.Yang j.Y.Yang l.l.Yang M.j.Yang R.Z.Yang S.B.Yang Y.H.Yao Z.G.Yao Y.M.Ye l.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.zhang H.M.zhang H.Y.zhang j.l.zhang j.W.zhang l.zhang l.zhang l.X.zhang P.F.zhang P.F.zhang R.zhang S.R.zhang S.S.zhang X.zhang X.P.zhang Y.zhang Y.zhang Y.F.zhang Y.l.zhang B.Zhao j.Zhao l.Zhao l.Z.Zhao S.P.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou j.N.Zhou P 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 ChengduSichuanChina State Key laboratory of Paricle Detection and Electronics China University of Science and Technology of China HefeiAnhui 230026China Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhouGuangdong 510006China School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen UniversityZhuhaiGuangdong 519000China School of Physical Science and Technology Guangxi UniversityNanningGuangxi 530004China Hebei Normal University ShijiazhuangHebei 050024China School of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China School of Astronomy and Space Science Nanjing UniversityNanjingJiangsu 210023China Key laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdaoShandong 266237China Key laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and Technology Southwest Jiaotong UniversityChengduSichuan 610031China College of Physics Sichuan UniversityChengduSichuan 610065China Key laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasaTibet 850000China School of physics and technology Wuhan UniversityWuhanHubei 430072Ch

The lHAASO-WFCTA experiment,which aims to observe cosmic rays in the sub-EeV range using the fluorescence technique,uses a new generation of high-performance *** ensure that the experiment has ex-cellent detection capability associated with the measurement of the energy spectrum,the primary composition of cosmic rays,and so on,an accurate geometrical reconstruction of air-shower events is *** paper de-scribes the development and testing of geometrical reconstruction for stereo viewed events using the WFCTA(Wide Field of view Cherenkov/Fluorescence Telescope Array)*** approaches,which take full advantage ofthe WFCTA *** *** is the stereo-angular method,which uses the pointing of triggered SiPMs in the shower trajectory,and the other is the stereo-timing method,which uses the triggering time of the fired *** results show that both methods have good geometrical resolution:the resolution of the stereo-timing method is slightly better than the stereo-angular method because the resolution of the latter is slightly limited by the shower track length.

关键词： cosmic ray fluorescence telescope stereo observation geometrical reconstruction

STCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai l.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu F.M.Cai H.Cai j.j.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen j.F.Chen K.Chen l.l.Chen P.Chen S.l.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng j.Cheng S.Cheng T.G.Cheng j.P.Dai l.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko j.M.Dias D.Z.Ding l.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.j.Du Z.G.Du l.M.Duan D.Epifanov Y.l.Fan S.S.Fang Z.j.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng j.l.Fu j.Gao Y.N.Gao P.S.Ge C.Q.Geng l.S.Geng A.Gilman l.Gong T.Gong B.Gou W.Gradl j.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo j.C.Guo j.Guo Y.P.Guo Z.H.Guo A.Guskov K.l.Han l.Han M.Han X.Q.Hao j.B.He S.Q.He X.G.He Y.l.He Z.B.He Z.X.Heng B.l.Hou T.j.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.j.Hu W.H.Hu X.H.Hu Y.C.Hu j.Hua G.S.Huang j.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.j.Huang Y.B.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.ji j.j.jia S.jia Z.K.jia H.B.jiang j.jiang S.Z.jiang j.B.jiao Z.jiao H.j.jing X.l.Kang X.S.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.lei E.levichev C.H.li C.li D.Y.li F.li G.li G.li H.B.li H.li H.N.li H.j.li H.l.li j.M.li j.li l.li l.li l.Y.li N.li P.R.li R.H.li S.li T.li W.j.li X.li X.H.li X.Q.li X.H.li Y.li Y.Y.li Z.j.li H.liang j.H.liang Y.T.liang G.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.S.lin B.j.liu C.W.liu D.liu F.liu G.M.liu H.B.liu j.liu j.j.liu j.B.liu K.liu K.Y.liu K.liu l.liu Q.liu S.B.liu T.liu X.liu Y.W.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.W.liu I.logashenko Y.long C.G.lu j.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu P.lukin F.j.luo T.luo X.F.luo Y.H.luo H.j.lyu X.R.lyu j.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov S.l.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng l.Peng X.Y.Peng X.j.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao j.j.Qin j.j.Qin l.Q.Qin X.S.Qin T.l.Qiu j.Rademacker C.F.Redmer H.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of Mining and Technology Xuzhou 221116China École Polytechnique Fédérale de lausanne(EPFl) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&D *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

Observation of the Crab Nebula with lHAASO-KM2A−a performance study

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Chinese Physics C 2021年第2期45卷 518-530页

作者： F.Aharonian Q.An Axikegu l.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.j.Bi Y.j.Bi H.Cai j.T.Cai Z.Cao j.Chang j.F.Chang X.C.Chang B.M.Chen j.Chen l.Chen M.j.Chen M.l.Chen Q.H.Chen S.H.Chen S.Z.Chen T.l.Chen X.l.Chen Y.Chen N.Cheng Y.D.Cheng S.W.Cui X.H.Cui Y.D.Cui B.Z.Dai H.l.Dai Z.G.Dai D.della Volpe B.D'Ettorre Piazzoli X.j.Dong j.H.Fan Y.Z.Fan Z.X.Fan j.Fang K.Fang C.F.Feng l.Feng S.H.Feng Y.l.Feng B.Gao C.D.Gao Q.Gao W.Gao M.M.Ge l.S.Geng G.H.Gong Q.B.Gou M.H.Gu j.G.Guo X.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He j.C.He S.l.He X.B.He Y.He M.Heller Y.K.Hor C.Hou X.Hou H.B.Hu S.Hu S.C.Hu X.j.Hu D.H.Huang Q.l.Huang W.H.Huang X.T.Huang Z.C.Huang F.ji X.l.ji H.Y.jia K.jiang Z.j.jiang C.jin D.Kuleshov K.levochkin B.B.li C.li F.li H.B.li H.C.li H.Y.li j.li K.li W.l.li X.li X.R.li Y.li Y.Z.li Z.li E.W.liang Y.F.liang S.j.lin B.liu C.liu D.liu H.liu H.D.liu j.liu j.l.liu j.S.liu j.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.N.liu Z.X.liu W.j.long R.lu H.K.lv B.Q.Ma l.l.Ma X.H.Ma j.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y.Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi D.Ruffolo V.Rulev A.Sáiz l.Shao O.Shchegolev X.D.Sheng j.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wang C.Wang H.Wang H.G.Wang j.C.Wang j.S.Wang l.P.Wang l.Y.Wang R.N.Wang W.Wang X.G.Wang X.j.Wang X.Y.Wang Y.D.Wang Y.j.Wang Y.P.Wang Z.Wang Z.H.Wang Z.X.Wang D.M.Wei j.j.Wei Y.j.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.X.Wu X.F.Wu S.Q.Xi j.Xia j.j.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.l.Xin Y.Xing D.l.Xu R.X.Xu l.Xue D.H.Yan C.W.Yang F.F.Yang j.Y.Yang l.l.Yang M.j.Yang R.Z.Yang S.B.Yang Y.H.Yao Z.G.Yao Y.M.Ye l.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.zhang H.M.zhang H.Y.zhang j.l.zhang j.W.zhang l.zhang l.X.zhang P.F.zhang P.P.zhang R.zhang S.R.zhang S.S.zhang X.zhang X.P.zhang Y.zhang Y.F.zhang Y.l.zhang B.Zhao j.Zhao l.Zhao l.Z.Zhao S.P.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou j.N.Zhou P.Zhou R.Zhou X.X.Zhou C.G.Zhu F.R.Zhu H.Zhu K.j.Zhu X.Zuo Key laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina University of Chinese Academy of Sciences 100049 BeijingChina TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key laboratory of Particle Detection and Electronics China University of Science and Technology of China 230026 HefeiAnhuiChina Department of Engineering Physics Tsinghua University100084 BeijingChina National Astronomical Observatories Chinese Academy of Sciences100101 BeijingChina National Space Science Center Chinese Academy of Sciences100190 BeijingChina School of Physics Peking University100871 BeijingChina Center for Astrophysics Guangzhou University510006 GuangzhouGuangdongChina School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen University519000 ZhuhaiGuangdongChina School of Physical Science and Technology Guangxi University530004 NanningGuangxiChina Hebei Normal University 050024 ShijiazhuangHebeiChina School of Physics and Microelectronics Zhengzhou University450001 ZhengzhouHenanChina School of Astronomy and Space Science Nanjing University210023 NanjingJiangsuChina Key laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210023 NanjingJiangsuChina Institute of Frontier and Interdisciplinary Science Shandong University266237 QingdaoShandongChina Key laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of Sciences200030 ShanghaiChina Tsung-Dao lee Institute&School of Physics and Astronomy Shanghai Jiao Tong University200240 ShanghaiChina School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong University610031 ChengduSichuanChina College of Physics Sichuan University610065 ChengduSichuanChina Key laboratory of Cosmic Rays(Tibet University) Ministry of Education850000 LhasaTibetChina School of Physics and Tec

A sub-array of the large High Altitude Air Shower Observatory(lHAASO),KM2A is mainly designed to observe a large fraction of the northern sky to hunt for γ-ray sources at energies above 10 *** though the detector construction is still underway,half of the KM2A array has been operating stably since the end of *** this paper,we present the KM2A data analysis pipeline and the first observation of the Crab Nebula,a standard candle in very high energy γ-ray *** detect γ-ray signals from the Crab Nebula in both energy ranges of 10-100 TeV and>100 TeV with high significance,by analyzing the KM2A data of 136 live days between December 2019 and May *** the observations,we test the detector performance,including angular resolution,pointing accuracy and cosmic-ray background rejection *** energy spectrum of the Crab Nebula in the energy range 10-250 TeV fits well with a single power-law function dN/dE=(1.13±0.05stat±0.08sys)×10^(-14).(E/20 TeV)-309±0.06stat±0.02syscm^(-2) s^(-1) TeV^(-1).It is consistent with previous measurements by other *** opens a new window of γ-ray astronomy above 0.1 PeV through which new ultrahigh-energy γ-ray phenomena,such as cosmic PeVatrons,might be discovered.

关键词： γ-ray Crab Nebula extensive air showers cosmic rays

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.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.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