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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.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.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.l. 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.l.n D.x.l.n 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.l.u Y.w.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.w.liu I.logash.nko Y.long c.G.lu j.x.l. 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.m.ng 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 jilin 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 ex.l.ring 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.w.ll as search.ng for exotic h.drons and ph.sics beyond th. standard *** sTcF project 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

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

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ch.nese Ph.sics c 2024年第8期48卷 6-33页

作者： m.Ablikim m.N.Ach.sov P.Adlarson O.Afedulidis x.c.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban h.-R.Bao V.Batozskaya K.Begzsuren N.Berger m.Berlowski m.Bertani D.Bettoni F.Bianch. E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann h.cai x.cai A.calcaterra G.F.cao N.cao s.A.cetin j.F.ch.ng w.l.ch.ng G.R.ch. G.ch.lkov c.ch.n c.h.ch.n ch.o ch.n G.ch.n h.s.ch.n m.l.ch.n s.j.ch.n s.l.ch.n s.m.ch.n T.ch.n x.R.ch.n x.T.ch.n Y.B.ch.n Y.Q.ch.n Z.j.ch.n Z.Y.ch.n s.K.ch.i x.ch. G.cibinetto F.cossio j.j.cui h.l.Dai j.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich.c.Q.Deng Z.Y.Deng A.Denig I.Denysenko m.Destefanis F.De mori B.Fang s.s.Fang w.x.Fang Y.Fang Y.Q.Fang R.Farinelli l.Fava F.Feldbauer G.Felici c.Q.Feng j.h.Feng Y.T.Feng K.Fisch.r m.Fritsch.c.D.Fu j.l.Fu Y.w.Fu h.Gao Y.N.Gao yang Gao s.Garbolino I.Garzia P.T.Ge Z.w.Ge c.Geng E.m.Gersabeck B.Ding x.x.Ding Y.Ding Y.Ding j.Dong l.Y.Dong m.Y.Dong x.Dong m.c.Du s.x.Du Z.h.Duan P.Egorov Y.h.Fan j.Fang jA.Gilman K.Goetzen l.Gong w.x.Gong w.Gradl s.Gramigna m.Greco m.h.Gu Y.T.Gu c.Y.Guan Z.l.Guan A.Q.guo l.B.guo m.j.guo R.P.guo Y.P.guo A.Guskov j.Gutierrez K.l.h.n T.T.h.n x.Q.h.o F.A.h.rris K.K.h. K.l.h. F.h.h.insius c.h.h.inz Y.K.h.ng c.h.rold T.h.ltmann P.c.h.ng G.Y.h.u x.T.h.u Y.R.h.u Z.l.h.u B.Y.h. h.m.h. j.F.h. T.h. Y.h. G.s.h.ang K.x.h.ang l.Q.h.ang x.T.h.ang Y.P.h.ang T.h.ssain F.h."olzken N.h."usken N.in der wiesch. m.Irsh.d j.jackson s.janch.v j.h.jeong Q.ji Q.P.ji w.ji x.B.ji x.l.ji Y.Y.ji x.Q.jia Z.K.jia D.jiang h.B.jiang P.c.jiang s.s.jiang T.j.jiang x.s.jiang Y.jiang j.B.jiao j.K.jiao Z.jiao s.jin Y.jin m.Q.jing x.m.jing T.joh.nsson s.Kabana N.Kalantar-Nayestanaki x.l.Kang x.s.Kang m.Kavatsyuk B.c.Ke V.Kh.ch.tryan A.Kh.ukaz R.Kiuch. O.B.Kolcu B.Kopf m.Kuessner x.Kui A.Kupsc w.K\"uh. j.j.lane P.larin l.lavezzi T.T.lei Z.h.lei h.leith.ff m.lellmann T.lenz c.li c.li c.h.li ch.ng li D.m.li F.li G.li h.li h.B.li h.j.li h.N.li h.i li j.R.li j.s.li K.li l.j.li l.K.li lei li m.h.li P.R.li Q.m.li Q.x.l. R.li s.x.l. T.li w.D.li w.G.li x.l. x.h.li x.l.li x.Y.li Y Institute of h.gh.Energy Ph.sics Chinese Academy of SciencesBeijing 100049China Beih.ng University Beijing 100191China Boch.m Ruh.-University D-44780 BochumGermany Budker Institute of Nuclear Ph.sics sB RAs(BINP) Novosibirsk 630090Russia carnegie mellon University PittsburghPennsylvania 15213USA central ch.na Normal University Wuhan 430079China central south.University Changsha 410083China ch.na center of Advanced science and Tech.ology Beijing 100190China ch.na University of Geosciences Wuhan 430074China ch.ng-Ang University Seoul06974Republic of Korea cOmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China 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.bei University Baoding 071002China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal University Xinxiang 453007China h.nan University Kaifeng 475004China h.nan University of science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China 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 Inner mongolia University Hohhot 010021China Institute of modern Ph.sics Lanzhou 730000China Institute of Ph.sics and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

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

关键词： BEsIII D^(0)meson decays amplitude analysis cP-even fraction

Evidence for particle acceleration approach.ng PeV energies in th. w51 complex

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

作者： lh.AsO collaboration Zh.n cao F.Ah.ronian 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 Zh. cao j.ch.ng j.F.ch.ng A.m.ch.n E.s.ch.n h.x.ch.n liang ch.n lin ch.n long ch.n m.j.ch.n m.l.ch.n Q.h.ch.n s.ch.n s.h.ch.n s.Z.ch.n T.l.ch.n Y.ch.n N.ch.ng Y.D.ch.ng 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.h.n m.h.san h.h.h. h.N.h. j.Y.h. Y.h. Y.K.h.r B.w.h.u c.h.u x.h.u h.B.h. Q.h. s.c.h. D.h.h.ang T.Q.h.ang w.j.h.ang x.T.h.ang x.Y.h.ang Y.h.ang x.l.ji h.Y.jia K.jia K.jiang x.w.jiang Z.j.jiang m.jin m.m.Kang I.Karpikov D.Kulesh.v K.Kurinov B.B.li c.m.li ch.ng 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 Zh. li Zh.o 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.min w.mitth.msiri 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.semikoz l.sh.o O.sh.h.golev x.D.sh.ng F.w.sh. h.c.song Yu.V.stenkin V.stepanov Y.su 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 Zh.n wang Zh.ng wang D.m.wei j.j.wei Y.j.wei T.wen c.Y.wu h.R.wu Q.w.wu s.w. x.F.wu Y.s.w. 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.Zh. B.B.Zh.ng F.Zh.ng h.Zh.ng 不详 Key laboratory of Particle Astroph.sics&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 ChengduChina Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland max-Planck-Institut for Nuclear Ph.sics P.O.Box 103980Heidelberg 69029Germany sch.ol of Ph.sical science and Tech.ology&sch.ol of Information science and Tech.ology Southwest Jiaotong UniversityChengdu 610031China sch.ol of Astronomy and space science Nanjing UniversityNanjing 210023China center for Astroph.sics Guangzhou UniversityGuangzhou 510006China Tsung-Dao lee Institute&sch.ol of Ph.sics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute for Nuclear Research.of Russian Academy of sciences Moscow 117312Russia h.bei Normal University Shijiazhuang 050024China University of science and Tech.ology of ch.na 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 sch.ol of Ph.sics and Astronomy Yunnan UniversityKunming 650091China Key laboratory of cosmic Rays(Tibet University) Ministry of EducationLhasa 850000China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China sch.ol of Ph.sics and Astronomy(Zh.h.i)&sch.ol of Ph.sics(Guangzh.u)&sino-French.Institute of Nuclear Engineering and Tech.ology(Zh.h.i) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China APc UniversitéParis Cité

Th.γ-ray emission from th. w51 complex is.w.dely acknowledged to be attributed to th. interaction between th. cosmic rays(cRs)accelerated by th. sh.ck of supernova remnant(sNR)w51c and th. dense molecular clouds in th. adjacent star-forming region,***,th. max.m.m acceleration capability of w51c for cRs remains *** on observations conducted with.th. large h.gh.Altitude Air sh.wer Observatory(lh.AsO),we report a significant detection ofγrays emanating from th. w51 complex,with.energies from 2 to 200 *** lh.AsO measurements,for th. first time,extend th.γ-ray emission from th. w51 complex beyond 100 TeV and reveal a significant spectrum bending at tens of *** combining th."π^(0)-decay bump"featured data from Fermi-lAT,th. broadbandγ-ray spectrum of th. w51 region can be well-ch.racterized by a simple pp-collision *** observed spectral bending feature suggests an exponential cutoff at~400 TeV or a power-law break at~200 TeV in th. cR proton spectrum,most likely providing th. first evidence of sNRs serving as cR accelerators approach.ng th. PeV ***,two young star clusters.w.th.n w51B could also be th.oretically viable to produce th. most energeticγrays observed by *** findings strongly support th. presence of extreme cR accelerators.w.th.n th. w51 complex and provide new insigh.s into th. origin of Galactic cRs.

关键词： Uh. c-ray cosmic rays sNR w51c star clusters

Determination of th. number ofψ(3686)events taken at BEsⅢ

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ch.nese Ph.sics c 2024年第9期48卷 8-20页

作者： m.Ablikim m.N.Ach.sov P.Adlarson O.Afedulidis x.c.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban h.-R.Bao V.Batozskaya K.Begzsuren N.Berger m.Berlowski m.Bertani D.Bettoni F.Bianch. E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann h.cai x.cai A.calcaterra G.F.cao N.cao s.A.cetin j.F.ch.ng G.R.ch. G.ch.lkov c.ch.n c.h.ch.n ch.o ch.n G.ch.n h.s.ch.n h.Y.ch.n m.l.ch.n s.j.ch.n s.l.ch.n s.m.ch.n T.ch.n x.R.ch.n x.T.ch.n Y.B.ch.n Y.Q.ch.n Z.j.ch.n Z.Y.ch.n s.K.ch.i G.cibinetto F.cossio j.j.cui h.l.Dai j.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich.c.Q.Deng Z.Y.Deng A.Denig I.Denysenko m.Destefanis F.De mori B.Ding x.x.Ding Y.Ding Y.Ding j.Dong l.Y.Dong m.Y.Dong x.Dong m.c.Du s.x.Du Y.Y.Duan Z.h.Duan P.Egorov Y.h.Fan j.Fang j.Fang s.s.Fang w.x.Fang Y.Fang Y.Q.Fang R.Farinelli l.Fava F.Feldbauer G.Felici c.Q.Feng j.h.Feng Y.T.Feng m.Fritsch.c.D.Fu j.l.Fu Y.w.Fu h.Gao x.B.Gao Y.N.Gao yang Gao s.Garbolino I.Garzia l.Ge P.T.Ge Z.w.Ge c.Geng E.m.Gersabeck A.Gilman K.Goetzen l.Gong w.x.Gong w.Gradl s.Gramigna m.Greco m.h.Gu Y.T.Gu c.Y.Guan Z.l.Guan A.Q.guo l.B.guo m.j.guo R.P.guo Y.P.guo A.Guskov j.Gutierrez K.l.h.n T.T.h.n F.h.nisch.x.Q.h.o F.A.h.rris K.K.h. K.l.h. F.h.h.insius c.h.h.inz Y.K.h.ng c.h.rold T.h.ltmann P.c.h.ng G.Y.h.u x.T.h.u Y.R.h.u Z.l.h.u B.Y.h. h.m.h. j.F.h. s.l.h. T.h. Y.h. G.s.h.ang K.x.h.ang l.Q.h.ang x.T.h.ang Y.P.h.ang T.h.ssain F.h.lzken N.h.sken N.in der wiesch. j.jackson s.janch.v j.h.jeong Q.ji Q.P.ji w.ji x.B.ji x.l.ji Y.Y.ji x.Q.jia Z.K.jia D.jiang h.B.jiang P.c.jiang s.s.jiang T.j.jiang x.s.jiang Y.jiang j.B.jiao j.K.jiao Z.jiao s.jin Y.jin m.Q.jing x.m.jing T.joh.nsson s.Kabana N.Kalantar-Nayestanaki x.l.Kang x.s.Kang m.Kavatsyuk B.c.Ke V.Kh.ch.tryan A.Kh.ukaz R.Kiuch. O.B.Kolcu B.Kopf m.Kuessner x.Kui N.Kumar A.Kupsc w.Küh. j.j.lane P.larin l.lavezzi T.T.lei Z.h.lei m.lellmann T.lenz c.li c.li c.h.li ch.ng li D.m.li F.li G.li h.B.li h.j.li h.N.li h.i li j.R.li j.s.li Ke li l.j.li l.K.li lei li m.h.li P.R.li Q.m.li Q.x.l. R.li s.x.l. T.li w.D.li w.G.li x.l. x.h.li x.l.li x.Z.li xi Institute of h.gh.Energy Ph.sics Beijing 100049China Beih.ng University Beijing 100191China Boch.m Ruh.-University D-44780BochumGermany Budker Institute of Nuclear Ph.sics sB RAs(BINP) Novosibirsk 630090Russia carnegie mellon University PittsburghPennsylvania 15213USA central ch.na Normal University Wuhan 430079China central south.University Changsha 410083China ch.na center of Advanced science and Tech.ology Beijing 100190China ch.na University of Geosciences Wuhan 430074China ch.ng-Ang University Seoul06974Republic of Korea cOmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan Fudan University Shanghai 200433China GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Normal University Hangzhou 310036China h.bei University Baoding 071002China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099MainzGermany h.nan Normal University Xinxiang 453007China h.nan University Kaifeng 475004China h.nan University of science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China 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 (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner mongolia University Hohhot 010021China Institute of modern Ph.sics Lanzhou 730000China Institute of Ph.sics and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile jilin University Changchun 130012China joh.

Th. number ofψ(3686)events collected by th. BEsⅢdetector during th. 2021 run period is determined to be(2259.3±11.1)×10~6 by counting inclusiveψ(3686)h.dronic *** uncertainty is systematic and th. statistical uncertainty is ***,th. numbers ofψ(3686)events collected during th. 2009 and 2012run periods are updated to be(107.7±0.6)×10~6 and(345.4±2.6)×10~6,*** numbers are consistent with.th. previous measurements.w.th.n one standard *** total number ofψ(3686)events in th. th.ee data samples is(2712.4±14.3)×10~6.

关键词： ψ(3686) inclusive process h.dronic events BEsⅢdetector

由超拍电子伏特加速器产生的超高能伽马射线气泡

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science Bulletin 2024年第4期69卷 449-457页

作者： lh.AsO collaboration Zh.n cao ch.andong Gao cong li Ruo-Yu liu Ruizh. yang 不详 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 ChengduChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China sch.ol of Astronomy and space science Nanjing UniversityNanjing 210023China University of science and Tech.ology of ch.na Hefei 230026China

we report th. detection of aγ-ray bubble spanning at least 100deg2 in ultra-h.gh.energy(Uh.)up to a few PeV in th. direction of th. star-forming region cygnus x,implying th. presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with.th. ph.ton indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting th. gamma-ray energy spectrum of th. bubble *** sources,“h.t spots”correlated with.very massive molecular clouds,and a quasi-sph.rical amorph.usγ-ray emitter with.a sh.rp central brigh.ening are observed in th. *** th. core of~0.5°,spatially associating with.a region containing massive OB association(cygnus OB2)and a microquasar(cygnus x-3),as.w.ll as previously reported multi-TeV sources,an enh.nced concentration of Uh.γ-rays is observed with.2 ph.tons at energies above 1 *** general feature of th. bubble,th. morph.logy,and th. energy spectrum,are reasonably reproduced by th. assumption of a particle accelerator in th. core,continuously injecting protons into th. ambient medium.

关键词： cosmic rays γ-rays Interstellar medium star cluster

Optimization of performance of th. Km2A full array using th. crab Nebula

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ch.nese Ph.sics c 2024年第6期48卷 169-178页

作者：曹臻 F.Ah.ronian 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.h.ller 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.Kulesh.v.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.mitth.msiri 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.sh.h.golev 盛祥东舒富文宋慧超 Yu.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 lh.AsO collaboration 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 Chengdu 610000China Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland max-Planck-Institut for Nuclear Ph.sics P.O.Box 10398069029 HeidelbergGermany state Key laboratory of Particle Detection and Electronics China University of science and Tech.ology of ch.na Hefei 230026China sch.ol of Ph.sical science and Tech.ology&sch.ol of Information science and Tech.ology Southwest Jiaotong UniversityChengdu 610031China sch.ol of Astronomy and space science Nanjing UniversityNanjing 210023China center for Astroph.sics Guangzhou UniversityGuangzhou 510006China h.bei 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&sch.ol of Ph.sics 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 sch.ol of Ph.sics and Astronomy(Zh.h.i)&sch.ol of Ph.sics(Guangzh.u)&sino-French.Institute of Nuclear Engineering and Tech.ology(Zh.h.i) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China sch.ol of Ph.sics and Astronomy Yunnan UniversityKunming 650091China Département de Ph.sique 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

Th. full array of th. large h.gh.Altitude Air sh.wer Observatory(lh.AsO)h.s been in operation since july *** its kilometer-square array(Km2A),we optimized th. selection criteria for very h.gh.and ultrah.gh.energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of th. detection in th. crab Nebula of approx.m.tely 15%,compared with.th.t of previous *** th. implementation of th.se new selection criteria,th. angular resolution was also significantly improved by approx.m.tely 10%at tens of *** aspects of th. full Km2A array performance,such.as th. pointing error,were also calibrated using th. crab *** resulting energy spectrum of th. crab Nebula in th. energy range of 10-1000 TeV are well fitted by a log-parabola model,wh.ch.is consistent with.th. previous results from lh.AsO and oth.r experiments.

关键词： γ-ray crab Nebula significance

Th. soft x-ray Imager(sxI)on th. smIlE mission

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Earth.and Planetary Ph.sics 2024年第1期8卷 5-14页

作者： s.sembay A.l.Alme D.Agnolon T.Arnold A.Beardmore A.Belén Balado margeli c.Bicknell c.Bouldin G.Branduardi-Raymont T.crawford j.P.Breuer T.Buggey G.Butch.r R.canch.l j.A.carter A.ch.ney Y.collado-Vega h.connor T.crawford N.Eaton c.Feldman c.Forsyth.T.Frantzen G.Galgóczi j.Garcia G.Y.Genov c.Gordillo h.P.Gröbelbauer m.Guedel Y.guo m.h.iley D.h.ll R.h.mpson j.h.siba O.h.th.rington A.h.lland s-Y.h.ieh.m.w.j.h.bbard h.jeszenszky m.jones T.Kennedy K.Koch.meh.in s.Kögl s.Krucker K.D.Kuntz c.lakin G.laky O.lylund A.martindale j.miguel mas h.sse R.Nakamura K.Oksavik N.Østgaard h.Ottach.r R.Ottensamer c.Pagani s.Parsons P.Patel j.Pearson G.Peikert F.s.Porter T.Pouliantis B.h.Quresh. w.Raab G.Randal A.m.Read N.m.m.Roque m.E.Rostad c.Runciman s.sach.ev A.samsonov m.soman D.sibeck s.smit j.søndergaard R.speigh. s.stavland m.steller TianRan sun j.Th.rnh.ll w.Th.mas K.Ullaland B.walsh.D.walton c.wang s.yang sch.ol of Ph.sics and Astronomy University of LeicesterLeicesterLE17RHUK space Park leicester University of LeicesterLeicesterLE17RHUK mullard space science laboratory University College LondonDorkingRH56NTUK centre for Electronic Imaging Open UniversityMilton KeynesMK76 AAUK Birkeland centre for space science Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway University of Vienna A-1010 ViennaAustria space Research.Institute Austrian Academy of SciencesA-8042 GrazAustria National Institute of Aerospace Tech.ology MadridSpain EsTEc European Space Agency2201 AZ NoordwijkNetherlands state Key laboratory of space weath.r National Space Science CentreBeijing 100190China University of Applied sciences and Arts North.estern switzerland CH-5210 WindischSwitzerland Koegl space Gmbh CH-8157 DielsdorfSwitzerland space Acoustics Gmbh CH-8157 DielsdorfSwitzerland Zurich.University of Applied sciences 8400 WinterhurSwitzerland Genov solutions N-5172 LoddefjordNorway sTm Engineering N-5165 LaksevagNorway joh. h.pkins University Applied Ph.sics laboratory MD 20723USA NAsA/Goddard space Fligh. centre MD 20771USA center for space Ph.sics Boston UniversityBostonMA 02215USA Department of Th.oretical Ph.sics and Astroph.sics Masaryk University60177 BrnoCzech Republic Institute of Ph.sics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace Information Research.Institute Chinese Academy of SciencesBeijing 100045China centro de Astrobiologia(cAB) CSIC-INTAMadridSpain

Th. soft x-ray Imager(sxI)is part of th. scientific payload of th. solar wind magnetosph.re Ionosph.re link Ex.l.rer(smIlE)*** is a joint science mission between th. European space Agency(EsA)and th. ch.nese Academy of sciences(cAs)and is due for launch.in *** is a compact x-ray telescope with.a wide field-of-view(FOV)capable of encompassing large portions of Earth.s magnetosph.re from th. vantage point of th. smIlE *** is sensitive to th. soft x-rays produced by th. solar wind ch.rge exch.nge(swcx)process produced wh.n h.avy ions of solar wind origin interact with.neutral particles in Earth.s *** provides a mech.nism for boundary detection with.n th. magnetosph.re,such.as th. position of Earth.s magnetopause,because th. solar wind h.avy ions h.ve a very low density in regions of closed magnetic field *** sensitivity of th. sxI is such.th.t it can potentially track movements of th. magnetopause on timescales of a few minutes and th. orbit of smIlE will enable such.movements to be tracked for segments lasting many *** is led by th. University of leicester in th. United Kingdom(UK)with.collaborating organisations on h.rdware,software and science support with.n th. UK,Europe,ch.na and th. United states.

关键词： soft x-ray Imaging micropore optics large area ccD

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直立性血压变化不影响强化降压后的认知结局

中华高血压杂志 2024年第1期32卷 23-23页

作者： jiang c Zh.o m li m wang Z Bai Y guo h.li s lai Y wang Y Gao m h. l guo x.l. s liu N jiang c Tang R long D sang c Du x Dong j Anderson cs ma c 袁源(译) 郑武洪(审校) 不详

直立性血压变化对强化降压的患者认知结局的影响尚不清楚。本研究旨在评估直立性血压变化是否改变血压干预对认知的影响。方法:本研究分析了参与收缩压干预试验降低高血压患者记忆和认知(systolic blood pressure intervention trial me... 详细信息

直立性血压变化对强化降压的患者认知结局的影响尚不清楚。本研究旨在评估直立性血压变化是否改变血压干预对认知的影响。方法:本研究分析了参与收缩压干预试验降低高血压患者记忆和认知(systolic blood pressure intervention trial memory and cognition in decreased h.pertension)研究中的8547例受试者资料。应用基于cox模型的限制性立方样条曲线评估直立性血压改变与发生认知结局的关联性。

关键词：直立性血压变化强化降压 cox模型限制性立方样条 h.pertension 血压改变

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.ji x.l.ji h.Y.jia K.jiang Z.j.jiang c.jin 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.l. x.l. 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.l.u 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.Pattarakijwanich.Z.Y.Pei m.Y.Qi D.Ruffolo V.Rulev A.saiz l.sh.o O.sh.h.golev x.D.sh.ng j.R.sh. 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.w.ng 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.w. 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.w.ich.take full advantage ofth. wFcTA *** *** is th. stereo-angular meth.d,wh.ch.uses th. pointing of triggered siPms in th. sh.wer trajectory,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