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Effect of Active Mineral filler on Rutting performance and fatigue properties of Granite Asphalt Concrete

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武汉理工大学学报 2010年第17期32卷 55-58,82页

作者： zhu z h wu s p li w t hUANG X Key Laboratory of silicate Materials science and Engineering Wuhan University of TechnologyWuhan 430070China hubei provincial Building science Research & Design Institute Wuhan 430070China

Granite is well known as an acid aggregate. An active mineral filler produced in the laboratory is first used as an anti-stripping filler in the granite asphalt concrete. four aggregate gradations were chosen in this study,and the effects of the active mineral filler and aggregates on the rutting resistance performance and fatigue properties of granite asphalt concrete were investigated by means of rutting test and four-point bending fatigue test. the results indicate that the dynamic stability of granite asphalt concrete increase significantly with the addition of active mineral filler and the fatigue properties can also be improved especially at lower strain level. Meanwhile,the results demonstrate that granite asphalt concrete has better rutting resistance performance and fatigue properties than limestone asphalt concrete.

关键词： granite asphalt concrete active mineral filler rutting resistance performance fatigue properties

Molecular beam epitaxy growth of monolayer hexagonal Mnte_(2)on si(111)substrate

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Chinese physics B 2021年第12期30卷 142-147页

作者： s Lu K peng p D wang A X Chen w Ren X w fang Y wu z Y li h f li f Y Cheng K L Xiong J Y Yang J z wang s A Ding Y p Jiang) L wang Q li f s li L f Chi Institute of functional Nano&soft Materials(fUNsOM) Soochow UniversitySuzhou 215123China Vacuum Interconnected Nanotech workstation(Nano-X) Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)Suzhou 215123China Key Laboratory of polar Materials and Devices(MOE) Department of ElectronicSchool of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China school of physical science and technology Southwest UniversityChongqing 400715China school of Nano-tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026China

Monolayer Mnte_(2)stabilized as 1 t structure has been theoretically predicted to be a two-dimensional(2 D)ferromagnetic metal and can be tuned via strain *** is no naturally van der waals(vdw)layered Mnte_(2)bulk,leaving mechanical exfoliation impossible to prepare monolayer Mnte_(2).herein,by means of molecular beam epitaxy(MBE),we successfully prepared monolayer hexagonal Mnte_(2)on si(111)under te rich *** reflection high-energy electron diffraction(RhEED)and low-energy electron diffraction(LEED)patterns suggest the monolayer is atomically flat without surface *** valence state of Mn^(4+)and the atom ratio of([te]:[Mn])further confirm the Mnte_(2)*** tunneling spectroscopy(sts)shows the hexagonal Mnte_(2)monolayer is a semiconductor with a large bandgap of~2.78 *** valence-band maximum(VBM)locates at theΓpoint,as illustrated by angle-resolved photoemission spectroscopy(ARpEs),below which three hole-type bands with parabolic dispersion can be *** successful synthesis of monolayer Mnte_(2)film provides a new platform to investigate the 2D magnetism.

关键词： molecular beam epitaxy hexagonal Mnte_(2) band structure

first principles calculations on the thermoelectric properties of bulk Au2s with ultra-low lattice thermal conductivity

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Chinese physics B 2020年第8期29卷 108-114页

作者： Y Y wu X L zhu h Y Yang z G wang Y h li B t wang school of Nuclear science and technology Lanzhou UniversityLanzhou 730000China Institute of high Energy physics Chinese Academy of SciencesBeijing 100049China spallation Neutron source science Center Dongguan 523808China school of Materials science and Engineering Hunan University of Science and TechnologyXiangtan 411201China Institute of Modern physics Chinese Academy of SciencesLanzhou 730000China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

sulfide nanocrystals and their composites have shown great potential in the thermoelectric(tE)field due to their extremely low thermal *** a solid and hollow metastable Au2s nanocrystalline has been successfully ***,we study the tE properties of this bulk Au2s by first-principles calculations and semiclassical Boltzmann transport theory,which provides the basis for its further experimental *** results indicate that the highly twofold degeneracy of the bands appears at theΓpoint in the Brillouin zone,resulting in a high seebeck ***,Au2s exhibits an ultra-low lattice thermal conductivity(~0.88 w·m^-1·K^-1 at 700 K).At 700 K,the thermoelectric figure of merit of the optimal p-type doping is close to 1.76,which is higher than 0.8 of zrsb at 700 K and 1.4 of ptte at 750 *** work clearly demonstrates the advantages of Au2s as a tE material and would greatly inspire further experimental studies and verifications.

关键词： first principles calculation thermodynamic transport properties

Effects of chemical pressure on diluted magneticsemiconductor(Ba,K)(zn,Mn)_2As_2

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Chinese physics B 2019年第5期28卷 288-292页

作者： Y peng s Yu G Q zhao w M li J f zhao L p Cao X C wang Q Q liu s J zhang R z Yu z Deng X h zhu C Q Jin College of Materials science & Engineering Sichuan University Beijing National Laboratory for Condensed Matter physics and Institute of Physics Chinese Academy of Sciences school of physics University of Chinese Academy of Sciences Collaborative Innovation Center of Quantum Matter

Chemical pressure induced by iso-valent doping has been widely employed to tune physical properties of materials. In this work, we report effects of chemical pressure by substitution of sb or p into As on a recently discovered diluted magnetic semiconductor(Ba,K)(zn,Mn)_2 As_2, which has the record of reliable Curie temperature of 230 K due to independent charge and spin doping. sb and p are substituted into As-site to produce negative and positive chemical pressures, respectively.X-ray diffraction results demonstrate the successful chemical solution of dopants. Magnetic properties of both K-underdoped and K-optimal-doped samples are effectively tuned by sb-and p-doping. the hall effect measurements do not show decrease in carrier concentrations upon sb-and p-doping. Impressively, magnetoresistance is significantly improved from7% to 27% by only 10% p-doping, successfully extending potential application of(Ba,K)(zn,Mn)_2 As_2.

关键词： chemical pressure (Ba,K)(zn,Mn)2As2 diluted magnetic semiconductor iso-valent doping

the Lobster Eye Imager for Astronomy Onboard the sAtech-01 satellite

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Research in Astronomy and Astrophysics 2023年第9期23卷 66-78页

作者： z.X.ling X.J.sun C.zhang s.L.sun G.Jin s.N.zhang X.f.zhang J.B.Chang f.s.Chen Y.f.Chen z.w.Cheng w.fu Y.X.han h.li J.f.li Y.li z.D.li p.R.liu Y.h.Lv X.h.Ma Y.J.tang C.B.wang R.J.Xie Y.L.Xue A.L.Yan Q.zhang C.Y.Bao h.B.Cai h.Q.Cheng C.z.Cui Y.f.Dai D.w.fan h.B.hu J.w.hu M.h.huang z.Q.Jia C.C.Jin D.Y.li J.Q.li h.Y.liu M.J.liu Y.liu h.w.pan Y.L.Qiu M.sugizaki h.sun w.X.wang Y.L.wang Q.Y.wu X.p.Xu Y.f.Xu h.N.Yang X.Yang B.zhang M.zhang w.D.zhang z.zhang D.h.zhao X.Q.Cong B.w.Jiang L.h.li X.B.Qiu J.N.sun D.t.su J.wang C.wu z.Xu X.M.Yang s.K.zhang z.zhang N.zhang Y.f.zhu h.Y.Ban X.z.Bi z.M.Cai w.Chen X.Chen Y.h.Chen Y.Cui X.L.Duan z.G feng Y.Gao J.w.he t.he J.J.huang f.li J.s.li t.J.li t.t.li h.Q.liu L.liu R.liu s.liu N.Meng Q.shi A.t.sun Y.M.wang Y.B.wang h.C.wu D.X Xu Y.Q Yang Y.Yang X.s.Yu K.X.zhang Y.L.zhang Y.h.zhang Y.t.zhang h.zhou X.C.zhu J.s.Cheng L.Qin L.wang Q.L.wang M.Bai R.L.Gao z.Ji Y.R.liu f.L.Ma Y.J.shi J.su Y.Y.tan J.z.tong h.t.Xu C.B.Xue G.f.Xue w.Yuan National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Astronomy and space science University of Chinese Academy of SciencesBeijing 100049China shanghai Institute of technical physics Chinese Academy of SciencesShanghai 200083China North Night Vision technology Co. LTDNanjing 211106China Institute of high Energy physics Chinese Academy of SciencesBeijing 100049China science and technology on Low-light-Level Night Vision Laboratory Xi'an 710065China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201204China Institute of Electrical Engineering Chinese Academy of ScienceBeijing 100190China National space science Center Chinese Academy of ScienceBeijing 100190China

the Lobster Eye Imager for Astronomy(LEIA),a pathfinder of the wide-field X-ray telescope of the Einstein probe mission,was successfully launched onboard the sAtech-01 satellite of the Chinese Academy of sciences on2022 July *** this paper,we introduce the design and on-ground test results of the LEIA *** stateof-the-art Micro-pore Optics(MpO),a wide field of view of 346 square degrees(18.6°×18.6°)of the X-ray imager is *** optical assembly composed of 36 MpO chips is used to focus incident X-ray photons,and four large-format complementary metal-oxide semiconductor(CMOs)sensors,each of size 6 cm×6 cm,are used as the focal plane *** instrument has an angular resolution of 4’-8’(in terms of fwhM)for the central focal spot of the point-spread function,and an effective area of 2-3 cm^(2) at 1 keV in essentially all the directions within the field of *** detection passband is 0.5-4 keV in soft X-rays and the sensitivity is2-3×10^(-11) erg s^(-1) cm^(-2)(about 1 milliCrab)with a 1000 s *** total weight of LEIA is 56 kg and the power is 85 *** satellite,with a design lifetime of 2 yr,operates in a sun-synchronous orbit of 500 km with an orbital period of 95 *** is paving the way for future missions by verifying in flight the technologies of both novel focusing imaging optics and CMOs sensors for X-ray observation,and by optimizing the working setups of the instrumental *** addition,LEIA is able to carry out scientific observations to find new transients and to monitor known sources in the soft X-ray band,albeit with limited useful observing time available.

关键词： instrumentation detectors-space vehicles instruments-telescopes-X-rays genera

Investigation of negative-parity states in ^(16)C via deuteron inelastic scattering

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Chinese physics C 2022年第5期46卷 70-76页

作者： z.w.tan J.L.Lou Y.L.Ye Y.liu D.Y.pang C.X.Yuan J.G.li w.liu Y.Jiang B.Yang L.C.tao K.Ma z.h.li Q.t.li X.f.Yang J.Y.Xu h.z.Yu J.X.han s.w.Bai s.w.huang G.li h.Y.wu h.L.zang J.feng J.s.wang Y.Y.Yang p.Ma Q.hu z.Bai z.h.Gao f.f.Duan L.Y.hu J.h.tan s.Q.sun Y.s.song h.J.Ong D.t.tran h.Y.zhu B.L.Xia school of physics and state Key Laboratory of Nuclear physics and technology Peking UniversityBeijing 100871China school of physics Beijing Key Laboratory of Advanced Nuclear Materials and PhysicsBeihang UniversityBeijing 100191China sino-french Institute of Nuclear Engineering and technology Sun Yat-Sen UniversityZhuhai 519082China Institute of Modern physics Chinese Academy of SciencesLanzhou 730000China fundamental science on Nuclear safety and simulation technology Laboratory Harbin Engineering UniversityHarbin 150001China Research Center for Nuclear physics Osaka universityOsaka 567-0047Japan Institute of physics Vietnam Academy of Science and TechnologyHanoi 10000Vietnam Institute of Materials China Academy of Engineering PhysicsMianyang 621907China

two low-lying unbound states in ^(16)C are investigated by deuteron inelastic scattering in inverse *** the 2^(-) state at 5.45 MeV previously measured in a 1n knockout reaction,a new resonant state at 6.89 MeV is observed for the first *** inelastic scattering angular distributions of these two states are well reproduced by the distorted-wave Born approximation(DwBA)calculation with an l=1 *** addition,the spinparities of the unbound states are discussed and tentatively assigned based on shell model calculations using the modified YsOX interaction.

关键词： negative-parity states inelastic scattering ^(16)C

Geometrical reconstruction of fluorescence events observed by the LhAAsO experiment

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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