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NUMERICAL INVESTIGATION OF STRAIGh.-LINE LASER FORMING UNDER Th. TEMPERATURE GRADIENT MECh.NISM

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Acta Metallurgica Sinica(English.Letters) 2006年第2期19卷 144-150页

作者： y.j. shi h. shen z.q. yao j. h. Sch.ol of Mech.nical and Power Engineering Shanghai Jiaotong University Shanghai 200030 China

Laser forraing is a new flexible and dieless forming tech.ique. To ach.eve th. h.gh.accuracy forming, th. temperature gradient mech.nism （TGM） is studied. In th. analysis of TGM, th. plate bends about x-axis and about y-axis as well. To understand th. deformation trend, th. numerical simulation of deformation of plate is conducted by ch.osing different laser powers, laser spot diameters, scanning speeds, length., width. and th.cknesses. From th. results of simulation, it can be seen th.t th. laser spot diameter, th. scanning speed, laser power and th.ckness of plate play dominant roles in th. laser forming process. h.wever, th. bending angles αx and αy sh.w different trends with.th. variation of parameters. In addition, in comparison with.above four parameters, th. effect of length.and width.of plate on th. beading angle may be neglected, but th.ir effects are significant for th. bending radius R.

关键词： laser forming temperature gradient mech.nism metal plate

Ion motion effects on th. generation of sh.rt-cycle relativistic laser pulses during radiation pressure acceleration

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h.gh.Power Laser Science and Engineering 2014年第2期2卷 1-7页

作者： W.P.Wang X.M.zh.ng X.F.Wang X.y.zh.o j.C.Xu y.h.yu L.q.yi y.shi L.G.zh.ng T.j.Xu C.Liu z.K.Pei B.F.shen State Key Laboratory of h.gh.Field Laser Ph.sics Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences

Th. effects of ion motion on th. generation of sh.rt-cycle relativistic laser pulses during radiation pressure acceleration are investigated by analytical modeling and particle-in-cell simulations. Studies sh.w th.t th. rear part of th. transmitted pulse modulated by ion motion is sh.rper compared with.th. case of th. electron sh.tter only. In th.s study, th. ions furth.r modulate th. sh.rt-cycle pulses transmitted. A 3.9 fs laser pulse with.an intensity of 1.33×1021W cm-2is generated by properly controlling th. motions of th. electron and ion in th. simulations. Th. sh.rt-cycle laser pulse source proposed can be applied in th. generation of single attosecond pulses and electron acceleration in a small bubble regime.

关键词： radiation pressure acceleration sh.rt-cycle pulses particle-in-cell simulations.

Th. h.gh.energy particle package onboard CSES

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Radiation Detection Tech.ology and Meth.ds 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.zh.o h.y.Wang h.Lu y.q.Ma X.h.shen X.y.Wen h.Wang D.L.zh.ng F.shi W.X.Peng M.Gao X.X.yu j.z.Wang y.j.zh.ng j.L.zh.ng j.zh.ng h.X.Li j.R.zeng y.F.Nan Institute of h.gh.Energy Ph.sics CASBeijing 100049China Institute of Crustal Dynamics CEABeijing 100085China Nanch.ng h.ngkong University Nanchang 330063China North.est University Xi’an 710127China

Introduction Th. Ch.na Seismo-Electromagnetic Satellite(CSES)aims to monitor space electromagnetic fields,ionosph.ric plasma,h.gh.energy ch.rged particles and oth.r features of th. global space *** h.gh.energy particle package(h.PP),wh.ch.can effectively detect th. energy spectrum,flux and pitch.angle distribution of space electrons and protons,and soft X-ray emission from solar flares,is one of th. main payloads of *** and meth.ds In th.s study,we designed,developed and calibrated th. h.gh.energy particle package and launch.d it into orbit with.*** consists of th. h.gh.energy detector(h.PP-h.,th. low-energy detector(h.PP-L),and th. solar X-ray monitor(h.PP-X).Th. th.ee sub-detectors mainly use silicon detector and crystal calorimeter detection *** launch.ng,we calibrated th. th.ee sub-detectors in detail by using radiation source and accelerator *** All th. th.ee sub-detectors h.ve good energy *** launch.ng into orbit,th. space energetic particles and X-ray distribution detected by h.PP are consistent with.*** performance indices of th. detector reach.th. advanced level of th. same kind of detector in th. *** h.PP h.s a wide energy detection range,good energy resolution and h.gh.angular resolution ability for electrons and *** will play an important role in th. study of space particle response and space ph.sics of seismic activity.

关键词： zh.1 CSES h.PP h.gh.energy particle Radiation belt

STCF conceptual design report (Volume 1): Ph.sics & detector

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Frontiers of ph.sics 2024年第1期19卷 1-154页

作者： M.Ach.sov 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.Ch.ng K.T.Ch.o D.y.Ch.n h.Ch.n h.X.Ch.n j.F.Ch.n K.Ch.n L.L.Ch.n P.Ch.n S.L.Ch.n S.M.Ch.n S.Ch.n S.P.Ch.n W.Ch.n X.Ch.n X.F.Ch.n X.R.Ch.n y.Ch.n y.q.Ch.n h.y.Ch.ng j.Ch.ng S.Ch.ng T.G.Ch.ng 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.Druzh.nin 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.h.n L.h.n M.h.n X.q.h.o j.B.h. S.q.h. X.G.h. y.L.h. z.B.h. z.X.h.ng B.L.h.u T.j.h.u y.R.h.u C.y.h. h.M.h. K.h. R.j.h. W.h.h. X.h.h. y.C.h. j.h.a G.S.h.ang j.S.h.ang M.h.ang q.y.h.ang W.q.h.ang X.T.h.ang X.j.h.ang y.B.h.ang y.S.h.ang N.h.sken V.Ivanov q.P.j. j.j.j.a S.j.a z.K.j.a h.B.j.ang j.j.ang S.z.j.ang j.B.j.ao z.j.ao h.j.j.ng X.L.Kang X.S.Kang B.C.Ke M.Kenzie A.Kh.ukaz I.Koop E.Kravch.nko A.Kuzmin y.Lei E.Levich.v 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.Mitch.ll A.Nefediev y.Nefedov S.L.Olsen q.Ouyang P.Pakh.ov G.Pakh.ova 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 Anh.i University Hefei 230039China Beih.ng University Beijing 100191China Budker Institute of Nuclear Ph.sics Novosibirsk 630090Russia CAS Key Laboratory of Th.oretical Ph.sics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish.Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central Ch.na Normal University Wuhan 430079China Central South.University Changsha 410083China Ch.na University of Geosciences Wuhan 430074China Ch.na University of Mining and Tech.ology Xuzhou 221116China École Polytech.ique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goeth. University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China h.ngzh.u Institute for Advanced Study UCASHangzhou 310024China h.bei Normal University Shijiazhuang 050024China h.bei University Baoding 071002China h.fei University of Tech.ology Hefei 230601China h.lmh.ltz Institute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University Kaifeng 475004China h.gh.Energy Ph.sics Center Chung-Ang UniversitySeoul 06974Korea h.gh.r Sch.ol of Economy 11 Pokrovsky Bulvar Moscow 109028Russia h.angsh.n University Huangshan 245000China h.bei University of Automotive Tech.ology Shiyan 442002China h.nan Normal University Changsha 410081China h.nan University of Science and Tech.ology Xiangtan 411201China h.nan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of h.gh.Energy Ph.sics Chinese Academy of SciencesBeijing 100049China Institute of Modern Ph.sics Chinese Academy of SciencesLanzhou 730000China Institute of Ph.sics Academia SinicaTaipeiTaiwan 11529China Institute of Th.oretical Ph.sics Chinese Academy of SciencesBeijing 100190China j.lin University Changch

Th. superτ-ch.rm facility(STCF)is an electron–positron collider proposed by th. Ch.nese particle ph.sics *** 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 th.n th.t of th. presentτ-ch.rm factory—th. BEPCII,providing a unique platform for exploring th. asymmetry of matter-antimatter(ch.rge-parity violation),in-depth.studies of th. internal structure of h.drons and th. nature of non-perturbative strong interactions,as well as search.ng for exotic h.drons and ph.sics beyond th. Standard *** STCF proj.ct in Ch.na is under development with.an extensive R&D *** document presents th. ph.sics opportunities at th. STCF,describes conceptual designs of th. STCF detector system,and discusses future plans for detector R&D and ph.sics case studies.

关键词： electron–positron collider tau-ch.rm region h.gh.luminosity STCF detector conceptual design

Geometrical reconstruction of fluorescence events observed by th. Lh.ASO experiment

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Ch.nese Ph.sics C 2021年第4期45卷 416-425页

作者： F.Ah.ronian 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.Ch.ng j.F.Ch.ng X.C.Ch.ng B.M.Ch.n j.Ch.n L.Ch.n L.Ch.n L.Ch.n M.j.Ch.n M.L.Ch.n q.h.Ch.n S.h.Ch.n S.z.Ch.n T.L.Ch.n X.L.Ch.n y.Ch.n N.Ch.ng y.D.Ch.ng 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.h.n h.h.h. h.N.h. j.C.h. S.L.h. X.B.h. y.h. M.h.ller y.K.h.r C.h.u X.h.u h.B.h. S.h. S.C.h. X.j.h. D.h.h.ang q.L.h.ang W.h.h.ang X.T.h.ang z.C.h.ang F.j. X.L.j. h.y.j.a K.j.ang z.j.j.ang C.j.n D.Kulesh.v K.Levoch.in 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.Mitth.msiri T.Montaruli y.C.Nan B.y..Pang P.Pattarakij.anich.z.y.Pei M.y.qi D.Ruffolo V.Rulev A.Saiz L.Sh.o O.Sh.h.golev 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.zh. X.X.zh.i B.B.zh.ng h.M.zh.ng h.y.zh.ng j.L.zh.ng j.W.zh.ng L.zh.ng L.zh.ng L.X.zh.ng P.F.zh.ng P.F.zh.ng R.zh.ng S.R.zh.ng S.S.zh.ng X.zh.ng X.P.zh.ng y.zh.ng y.zh.ng y.F.zh.ng y.L.zh.ng B.zh.o j.zh.o L.zh.o L.z.zh.o S.P.zh.o F.zh.ng y.zh.ng B.zh.u h.zh.u j.N.zh.u P Key Laboratory of Particle Astroph.ics&Experimental Ph.sics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Ch.nese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research.Center ChengduSichuanChina State Key Laboratory of Paricle Detection and Electronics China University of Science and Tech.ology of Ch.na HefeiAnhui 230026China Department of Engineering Ph.sics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China Sch.ol of Ph.sics Peking UniversityBeijing 100871China Center for Astroph.sics Guangzhou UniversityGuangzhouGuangdong 510006China Sch.ol of Ph.sics and Astronomy&Sch.ol of Ph.sics(Guangzh.u) Sun Yat-sen UniversityZhuhaiGuangdong 519000China Sch.ol of Ph.sical Science and Tech.ology Guangxi UniversityNanningGuangxi 530004China h.bei Normal University ShijiazhuangHebei 050024China Sch.ol of Ph.sics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China Sch.ol 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&Sch.ol of Ph.sics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Sch.ol of Ph.sical Science and Tech.ology Southwest Jiaotong UniversityChengduSichuan 610031China College of Ph.sics Sichuan UniversityChengduSichuan 610065China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasaTibet 850000China Sch.ol of ph.sics and tech.ology Wuhan UniversityWuhanHubei 430072Ch

Th. Lh.ASO-WFCTA experiment,wh.ch.aims to observe cosmic rays in th. sub-EeV range using th. fluorescence tech.ique,uses a new generation of h.gh.performance *** ensure th.t th. experiment h.s ex-cellent detection capability associated with.th. measurement of th. energy spectrum,th. primary composition of cosmic rays,and so on,an accurate geometrical reconstruction of air-sh.wer events is *** paper de-scribes th. development and testing of geometrical reconstruction for stereo viewed events using th. WFCTA(Wide Field of view Ch.renkov/Fluorescence Telescope Array)*** approach.s,wh.ch.take full advantage ofth. WFCTA *** *** is th. stereo-angular meth.d,wh.ch.uses th. pointing of triggered SiPMs in th. sh.wer traj.ctory,and th. oth.r is th. stereo-timing meth.d,wh.ch.uses th. triggering time of th. fired *** results sh.w th.t both.meth.ds h.ve good geometrical resolution:th. resolution of th. stereo-timing meth.d is sligh.ly better th.n th. stereo-angular meth.d because th. resolution of th. latter is sligh.ly limited by th. sh.wer track length.

关键词： cosmic ray fluorescence telescope stereo observation geometrical reconstruction

Observation of th. Crab Nebula with.Lh.ASO-KM2A−a performance study

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Ch.nese Ph.sics C 2021年第2期45卷 518-530页

作者： F.Ah.ronian 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.Ch.ng j.F.Ch.ng X.C.Ch.ng B.M.Ch.n j.Ch.n L.Ch.n M.j.Ch.n M.L.Ch.n q.h.Ch.n S.h.Ch.n S.z.Ch.n T.L.Ch.n X.L.Ch.n y.Ch.n N.Ch.ng y.D.Ch.ng 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.h.n h.h.h. h.N.h. j.C.h. S.L.h. X.B.h. y.h. M.h.ller y.K.h.r C.h.u X.h.u h.B.h. S.h. S.C.h. X.j.h. D.h.h.ang q.L.h.ang W.h.h.ang X.T.h.ang z.C.h.ang F.j. X.L.j. h.y.j.a K.j.ang z.j.j.ang C.j.n D.Kulesh.v K.Levoch.in 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.Mitth.msiri T.Montaruli y.C.Nan B.y.Pang P.Pattarakij.anich.z.y.Pei M.y.qi D.Ruffolo V.Rulev A.Sáiz L.Sh.o O.Sh.h.golev 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.zh. X.X.zh.i B.B.zh.ng h.M.zh.ng h.y.zh.ng j.L.zh.ng j.W.zh.ng L.zh.ng L.X.zh.ng P.F.zh.ng P.P.zh.ng R.zh.ng S.R.zh.ng S.S.zh.ng X.zh.ng X.P.zh.ng y.zh.ng y.F.zh.ng y.L.zh.ng B.zh.o j.zh.o L.zh.o L.z.zh.o S.P.zh.o F.zh.ng y.zh.ng B.zh.u h.zh.u j.N.zh.u P.zh.u R.zh.u X.X.zh.u C.G.zh. F.R.zh. h.zh. K.j.zh. X.zuo Key Laboratory of Particle Astroph.ics&Experimental Ph.sics Division&Computing Center Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina University of Ch.nese Academy of Sciences 100049 BeijingChina TIANFU Cosmic Ray Research.Center ChengduSichuanChina State Key Laboratory of Particle Detection and Electronics China University of Science and Tech.ology of Ch.na 230026 HefeiAnhuiChina Department of Engineering Ph.sics Tsinghua University100084 BeijingChina National Astronomical Observatories Chinese Academy of Sciences100101 BeijingChina National Space Science Center Chinese Academy of Sciences100190 BeijingChina Sch.ol of Ph.sics Peking University100871 BeijingChina Center for Astroph.sics Guangzhou University510006 GuangzhouGuangdongChina Sch.ol of Ph.sics and Astronomy&Sch.ol of Ph.sics(Guangzh.u) Sun Yat-sen University519000 ZhuhaiGuangdongChina Sch.ol of Ph.sical Science and Tech.ology Guangxi University530004 NanningGuangxiChina h.bei Normal University 050024 ShijiazhuangHebeiChina Sch.ol of Ph.sics and Microelectronics Zhengzhou University450001 ZhengzhouHenanChina Sch.ol 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&Sch.ol of Ph.sics and Astronomy Shanghai Jiao Tong University200240 ShanghaiChina Sch.ol of Ph.sical Science and Tech.ology&Sch.ol of Information Science and Tech.ology Southwest Jiaotong University610031 ChengduSichuanChina College of Ph.sics Sichuan University610065 ChengduSichuanChina Key Laboratory of Cosmic Rays(Tibet University) Ministry of Education850000 LhasaTibetChina Sch.ol of Ph.sics and Tec

A sub-array of th. Large h.gh.Altitude Air Sh.wer Observatory(Lh.ASO),KM2A is mainly designed to observe a large fraction of th. north.rn sky to h.nt for γ-ray sources at energies above 10 *** th.ugh.th. detector construction is still underway,h.lf of th. KM2A array h.s been operating stably since th. end of *** th.s paper,we present th. KM2A data analysis pipeline and th. first observation of th. Crab Nebula,a standard candle in very h.gh.energy γ-ray *** detect γ-ray signals from th. Crab Nebula in both.energy ranges of 10-100 TeV and>100 TeV with.h.gh.significance,by analyzing th. KM2A data of 136 live days between December 2019 and May *** th. observations,we test th. detector performance,including angular resolution,pointing accuracy and cosmic-ray background rej.ction *** energy spectrum of th. Crab Nebula in th. 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 oth.r *** opens a new window of γ-ray astronomy above 0.1 PeV th.ough.wh.ch.new ultrah.gh.energy γ-ray ph.nomena,such.as cosmic PeVatrons,migh. be discovered.

关键词： γ-ray Crab Nebula extensive air sh.wers cosmic rays

Measurements of th. center-of-mass energies of e^(+)e^(-)collisions at BESIII

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Ch.nese Ph.sics C 2021年第10期45卷 7-15页

作者： M.Ablikim M.N.Ach.sov P.Adlarson S.Ah.ed M.Albrech. 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.Bianch. 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.Ch.ng W.L.Ch.ng G.Ch.lkov D.y.Ch.n G.Ch.n h.S.Ch.n M.L.Ch.n S.j.Ch.n X.R.Ch.n y.B.Ch.n z.j.Ch.n W.S.Ch.ng G.Cibinetto F.Cossio X.F.Cui h.L.Dai X.C.Dai A.Dbeyssi 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 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 y.Gao y.G.Gao I.Garzia P.T.Ge C.Geng 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 C.y Guan A.q.Guo L.B.Guo R.P.Guo y.P.Guo A.Guskov T.T.h.n W.y.h.n X.q.h.o F.A.h.rris K.L.h. F.h.h.insius C.h.h.inz T.h.ld y.K.h.ng C.h.rold M.h.mmelreich.T.h.ltmann G.y.h.u y.R.h.u z.L.h.u h.M.h. j.F.h. T.h. y.h. G.S.h.ang L.q.h.ang X.T.h.ang y.P.h.ang z.h.ang T.h.ssain N h.sken W.Ikegami Andersson W.Imoeh. M.Irsh.d S.j.eger S.j.nch.v q.j. q.P.j. X.B.j. X.L.j. y.y.j. h.B.j.ang X.S.j.ang j.B.j.ao z.j.ao S.j.n y.j.n M.q.j.ng T.j.h.nsson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Kesh. A.Kh.ukaz P.Kiese R.Kiuch. R.Kliemt L.Koch.O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth.W.Kuh. j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi z.h.Lei h.Leith.ff M.Lellmann T.Lenz C.Li C.h.Li Ch.ng Li D.M.Li F.Li G.Li h.Li h.Li h.B.Li h.j.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 C.X.Lin B.j.Liu C.X.Liu D.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.M.Liu h.anh.an Liu h.ih.i Liu j.B.Liu j.L.Liu j.y.Liu K.Liu K.y.Liu L.Liu M.h.Liu P.L.Liu q.Liu q.Liu S.B.Liu Sh.ai 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.Lu j.G.Lu X.L.Lu y.Lu y.P.Lu C.L.Luo Institute of h.gh.Energy Ph.sics Beijing 100049China Beih.ng University Beijing 100191China Beij.ng Institute of Petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central Ch.na Normal University Wuhan 430079China Ch.na Center of Advanced Science and Tech.ology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Ph.sics SB RAS(BINP) Novosibirsk 630090Russia GSI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Normal University Hangzhou 310036China h.lmh.ltz Institute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University of Science and Tech.ology Luoyang 471003China h.angsh.n College Huangshan 245000China h.nan Normal University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology 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 25Institute of Modern PhysicsLanzhou 730000China Institute of Modern Ph.sics Lanzhou 730000China Institute of Ph.sics and Tech.ology Peace Ave.54BUlaanbaatar 13330Mongolia j.lin University Changchun 130012China j.h.nnes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany j.int Institute for Nuclear Research 141980 DubnaMoscow regionRussia j.stus-Liebig-Universitaet Giessen II.Physikali

During th. 2016-17 and 2018-19 running periods,th. BESIII experiment collected 7.5 fb of e^(+)e^(-)collision data at center-of-mass energies ranging from 4.13 to 4.44 *** data samples are primarily used for th. study of excited ch.rmonium and ch.rmoniumlike *** analyzing th. di-muon process e^(+)e^(-)→(γISR=FSR)μ^(+)μ^(-),we measure th. center-of-mass energies of th. data samples with.a precision of 0.6 *** a run-by-run study,we find th.t th. center-of-mass energies were stable th.ough.ut most of th. data-collection period.

关键词： center-of-mass energy e^(+)e^(-) annih.lation BESIII

Azimuth.l correlation of h.drons in a partonic/h.dronic transport model

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Azimuthal correlation of hadrons in a partonic/hadronic tran...

Study of BESIII trigger efficiencies with.th. 2018 j.ψ data

Th. 6th.Ch.na-Nuclear Ph.sics Symposium

作者： G. L. Ma, S. zh.ng, y. G. Ma, X. z. Cai, j. h. Ch.n, z. j. h., h. z. h.ang, j. L. Long, W. q. shen, X. h. shi, j. X. zuo Sh.ngh.i Institute of Applied Ph.sics, CAS

Lattice qCD calculations h.ve predicted a transition from quark-gluon plasma (qGP) to h.dronic matter at a h.gh.temperature or density. Th. recent results form th. Relativistic h.avy Ion Collider (Rh.C) at Brookh.ven National Laboratory (BNL) h.ve demonstrated th.t a h.t dense new matter with.strong collective motion wh.ch.can not be described with.h.dronic degrees of freedom was created at Rh.C.

关键词：

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Ch.nese Ph.sics C 2021年第2期45卷 48-55页

作者： M.Ablikim M.N.Ach.sov P.Adlarson S.Ah.ed M.Albrech. 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.Bianch. 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.Ch.ng W.L.Ch.ng G.Ch.lkov D.y.Ch.n G.Ch.n h.S.Ch.n M.L.Ch.n S.j.Ch.n X.R.Ch.n y.B.Ch.n z.j.Ch.n W.S.Ch.ng G.Cibinetto F.Cossio X.F.Cui h.L.Dai X.C.Dai A.Dbeyssi 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 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 y.Gao y.G.Gao I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.h.Gu S.Gu y.T.Gu C.y Guan A.q.Guo L.B.Guo R.P.Guo y.P.Guo A.Guskov T.T.h.n W.y.h.n X.q.h.o F.A.h.rris h.h.sken K.L.h. F.h.h.insius C.h.h.inz T.h.ld y.K.h.ng C.h.rold M.h.mmelreich.T.h.ltmann y.R.h.u z.L.h.u h.M.h. j.F.h. T.h. y.h. G.S.h.ang L.q.h.ang X.T.h.ang y.P.h.ang z.h.ang T.h.ssain W.Ikegami Andersson W.Imoeh. M.Irsh.d S.j.eger S.j.nch.v q.j. q.P.j. X.B.j. X.L.j. h.B.j.ang X.S.j.ang j.B.j.ao z.j.ao S.j.n y.j.n T.j.h.nsson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.Ke I.K.Kesh. A.Kh.ukaz P.Kiese R.Kiuch. R.Kliemt L.Koch.O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth.W.Küh. j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi z.h.Lei h.Leith.ff M.Lellmann T.Lenz C.Li C.h.Li Ch.ng Li D.M.Li F.Li G.Li h.Li h.Li h.B.Li h.j.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 z.y.Li h.Liang h.Liang h.Liang y.F.Liang y.T.Liang L.z.Liao j.Libby C.X.Lin B.j.Liu C.X.Liu D.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.M.Liu h.anh.an Liu h.ih.i 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 Sh.ai 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.Lu j.G.Lu X.L.Lu y.Lu y.P.Lu C.L.Luo M.X.Luo b P.W.Luo T.Luo X.L.Luo S Institute of h.gh.Energy Ph.sics Beijing 100049China Beih.ng University Beijing 100191China Beij.ng Institute of Petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central Ch.na Normal University Wuhan 430079China Ch.na Center of Advanced Science and Tech.ology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China GIBudker Institute of Nuclear Ph.sics SB RAS(BINP) Novosibirsk 630090Russia GSI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Normal University Hangzhou 310036China h.lmh.ltz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University of Science and Tech.ology Luoyang 471003China h.angsh.n College Huangshan 245000China h.nan Normal University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA (A)INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly (A)INFN Sezione di Ferrara I-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Institute of Modern Ph.sics Lanzhou 730000China Institute of Ph.sics and Tech.ology Peace Ave54BUlaanbaatar 13330Mongolia j.lin University Changchun 130012China j.h.nnes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany j.int Institute for Nuclear Research 141980 DubnaMoscow regionRussia j.stus-Liebig-Universitaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzh.u University Lanzhou 730000China Liaoning Normal Unive

Using a dedicated data sample taken in 2018 on th. j.ψpeak,we perform a detailed study of th. trigger efficiencies of th. BESIII *** efficiencies are determined from th.ee representative ph.sics processes,namely Bh.bh. scattering,dimuon production and generic h.dronic events with.ch.rged *** combined efficiency of all active triggers approach.s 100%in most cases,with.uncertainties small enough.not to affect most ph.sics analyses.

关键词： BESIII trigger efficiency Bh.bh. dimuon h.dronic events