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Geomet.ical reconst.uct.on of fluorescence event. observed by.t.2} Lh.AsO ex.eriment

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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 Ax.kegu L.x.Bai y.x.Bai y.w.Bao D.Bast.eri 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.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.DEt.rre 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.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.m.t.h.msiri t.mont.ruli y.C.Nan B.y..Pang P.Pat.arakijwanich.z.y.Pei m.y.Qi D.Ruffolo V.Rulev A.saiz L.sh.o O.sh.h.golev x.D.sh.15}g J.R.sh. h.C.song y..V.st.24}kin V.st.panov Q.N.sun x.N.sun z.B.sun P.h.t.t.m z.B.t.ng w.w.t.an 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.x. J.x.a J.J.x.a G.m.x.ang G.x.ao h.B.x.ao G.G.x.n y.L.x.n y.x.ng D.L.x. R.x.x. L.x.e D.h.y.n C.w.y.ng F.F.y.ng J.y.y.ng L.L.y.ng m.J.y.ng R.z.y.ng s.B.y.ng y.h.y.o z.G.y.o y.m.y. L.Q.y.n N.y.n x.h.y.u z.y.y.u y.h.y. Q.y.an 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.z.eng y.z.eng B.zh.u h.zh.u J.N.zh.u P Key.Laborat.ry.of Part.cle Ast.oph.ics&Ex.eriment.l Ph.sics Division&Comput.ng Cent.r Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Universit. of Ch.nese Academy.of sciences Beijing 100049China t.ANFU Cosmic Ray.Research.Cent.r ChengduSichuanChina st.t. Key.Laborat.ry.of Paricle Det.ct.on and Elect.onics China Universit. of science and t.ch.ology.of Ch.na HefeiAnhui 230026China Depart.ent.of engineering Ph.sics Tsinghua UniversityBeijing 100084China Nat.onal Ast.onomical Observat.ries Chinese Academy of SciencesBeijing 100101China Nat.onal space science Cent.r Chinese Academy of SciencesBeijing 100190China sch.ol of Ph.sics Peking UniversityBeijing 100871China Cent.r for Ast.oph.sics Guangzhou UniversityGuangzhouGuangdong 510006China sch.ol of Ph.sics and Ast.onomy.sch.ol of Ph.sics(Guangzh.u) Sun Yat-sen UniversityZhuhaiGuangdong 519000China sch.ol of Ph.sical science and t.ch.ology Guangxi UniversityNanningGuangxi 530004China h.bei Normal Universit. ShijiazhuangHebei 050024China sch.ol of Ph.sics and microelect.onics Zhengzhou UniversityZhengzhouHenan 450001China sch.ol of Ast.onomy.and space science Nanjing UniversityNanjingJiangsu 210023China Key.Laborat.ry.of Dark mat.er and space Ast.onomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Inst.t.t. of Front.er and Int.rdisciplinary.science Shandong UniversityQingdaoShandong 266237China Key.Laborat.ry.for Research.in Galax.es and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China t.ung-Dao Lee Inst.t.t.&sch.ol of Ph.sics and Ast.onomy Shanghai Jiao Tong UniversityShanghai 200240China sch.ol of Ph.sical science and t.ch.ology Southwest Jiaotong UniversityChengduSichuan 610031China College of Ph.sics Sichuan UniversityChengduSichuan 610065China Key.Laborat.ry.of Cosmic Ray.(t.bet.Universit.) Ministry of EducationLhasaTibet 850000China sch.ol of ph.sics and t.ch.ology Wuhan UniversityWuhanHubei 430072Ch

t.0} Lh.AsO-wFCt. ex.eriment.wh.ch.aims t. observe cosmic ray. in t.0} sub-EeV range using t.0} fluorescence t.ch.ique,uses a new generat.on of h.gh.performance *** ensure t.0}t.t.0} ex.eriment.h.s ex.cellent.det.ct.on capabilit. associat.d wit.0}t.0} measurement.of t.0} energy.spect.um,t.0} primary.composit.on of cosmic ray.,and so on,an accurat. geomet.ical reconst.uct.on of air-sh.wer event. is *** paper de-scribes t.0} development.and t.st.ng of geomet.ical reconst.uct.on for st.reo viewed event. using t.0} wFCt.(wide Field of view Ch.renkov/Fluorescence t.lescope Array.*** approach.s,wh.ch.t.ke full advant.ge oft.0} wFCt. *** *** is t.0} st.reo-angular met.0}d,wh.ch.uses t.0} point.ng of t.iggered siPms in t.0} sh.wer t.aject.ry.and t.0} ot.0}r is t.0} st.reo-t.ming met.0}d,wh.ch.uses t.0} t.iggering t.me of t.0} fired *** result. sh.w t.0}t.bot.0}met.0}ds h.ve good geomet.ical resolut.on:t.0} resolut.on of t.0} st.reo-t.ming met.0}d is sligh.ly.bet.er t.0}n t.0} st.reo-angular met.0}d because t.0} resolut.on of t.0} lat.er is sligh.ly.limit.d by.t.0} sh.wer t.ack lengt.0}

关键词： cosmic ray fluorescence t.lescope st.reo observat.on geomet.ical reconst.uct.on

measurement.of t.1} int.grat.d Luminosit.es of cross-sect.on scan dat. samples around t.1}ψ(3770)mass region

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Ch.nese Ph.sics C 2018年第6期42卷 1-8页

作者： m. Ablikim m. N. Ach.sov s. Ah.ed m. Albrech. m. Alekseev A. Amoroso F. F. An Q. An y. Bai O. Bakina R. Baldini Ferroli y. Ban K. Begzsuren D. w. Bennet. J. V. Bennet. N. Berger m. Bert.ni D. Bet.oni F. Bianch. E. Boger I. Boy.o R. A. Briere h. Cai x. Cai O. Cakir A. Calcat.rra G. F. Cao s. A. Cet.n J. Ch.i J. F. Ch.ng w. L. Ch.ng G. Ch.lkov G. chen h. s. chen J. C. chen m. L. chen P. L. chen s. J. chen x. R. chen y. B. chen x. K. Ch. G. Cibinet.o F. Cossio h. a. Dai, J. F. Dai A. Dbey.si D. Dedovich.z. y. Deng A. Denig I. Deny.enko m. Dest.fanis F. De mori y. Ding C. Dong J. Dong L. y. Dong m. y. Dong z. L. Dou s. x. Du P. F. nuan J. Fang s. s. Fang y. Fang R. Farinelli L. Fava s. Fegan F. Feldbauer G. Felici C. Q. Feng E. Fioravant. m. Frit.ch.C. D. Fu Q. Gao x. L. Gao y. Gao, y. G. Gao z. Gao B. Garillon I. Garzia A. Gilman K. Goet.en L. Gong w. x. Gong w. Gradl m. Greco L. m. Gu m. h. Gu y. t. Gu A. q. Guo L. B. Guo R. P. Guo y. F. Guo A. Guskov z. h.ddadi s. h.n x. Q. h.o F. A. h.rris z. L. h. x. O. h. F. h. h.insius t. h.ld y. K. h.0}g t. h.lt.ann z. L. h.u h. m. h. J. F. gu t. h. y. h. G. s. h.ang J. s. h.ang x. t. h.ang x. z. h.ang z. L. guang t. h.ssain w. Ikegami Andersson m Irsh.d Q. Ji Q. P. Ji x. B. Ji x. L. Ji x. s. Jiang x. y. Jiang J. B. Jiao z. Jiao D. P. Jin s. Jin y. Jin t. Joh.nsson A. Julin N. Kalant.r-Nay.st.naki x. s. Kang m. Kavat.y.k B. C. Ke t. Kh.n A. Kh.ukaz P. Kiese R. Kliemt.L. Koch.O. B. Kolcu B. Kopf m. Kornicer m. Kuemmel m. Kuessner A. Kupsc m. Kurt.0}w. Kiih. J. s. Lange m. Lara P. Larin L. Lavezzi s. Leiber h. Leit.0}fi C. Li cheng Li D. m. Li F. Li F. y. Li G. Li h. B. Li h. J. Li J. C. Li J. w. Li K. J. Li Kang Li Ke Li Lei Li P. L. Li P. R. Li Q. y. Li t. Li w. D. Li w. G. Li x. L. Li x. N. Li x. Q. Li z. B. Li h. Liang y. F. Liang y. t. Liang G. R. Liao L. z. Liao J. Libby.C. x. Lin D. x. Lin s. Liu B. J. Liu C. x. Liu D. Liu D. y. Liu F. h. Liu Fang Liu Feng Liu h. B. Liu h. L Liu h. m. Liu h.anh.an Liu h.ih.i Liu J. B. Liu J. y. Liu K. Liu K. y. Liu Ke Liu L. D. Liu Q. Liu s B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beih.ng Universit. Beijing 100191 China Beijing Inst.t.t. of Pet.och.mical t.ch.ology Beijing 102617 China Boch.m Ruh.-Universit. D-44780 Bochum Germany Carnegie mellon Universit. Pittsburgh Pennsylvania 15213 USA Cent.al Ch.na Normal Universit. Wuhan 430079 China Ch.na Cent.r of Advanced science and t.ch.ology Beijing 100190 China COmsAt. Inst.t.t. of Informat.on t.ch.ology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Inst.t.t. of Nuclear Ph.sics sB RAs （BINP） Novosibirsk 630090 Russia GsI h.lmh.lt.2}t.e for h.avy.Ion Research.Gmbh D-64291 Darmstadt Germany Guangx. Normal Universit. Guilin 541004 China Guangx. Universit. Nanning 530004 China h.ngzh.u Normal Universit. Hangzhou 310036 China h.lmh.lt. Inst.t.t. mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany h.0}an Normal Universit. Xinxiang 453007 China h.0}an Universit. of science and t.ch.ology Luoyang 471003 China h.angsh.n College Huangshan 245000 China h.nan Normal Universit. Changsha 410081 China h.nan Universit. Changsha 410082 China Indian Inst.t.t. of t.c

t. invest.gat. t.0} nat.re of t.0} Ψ（3770） resonance and t. measure t.0} cross sect.on for e^＋e^-→DD, a cross-sect.on scan dat. sample, dist.ibut.d among 41 cent.r-of-mass energy.point. from 3.73 t. 3.89 GeV, was t.ken wit.0}t.0} BEsIII det.ct.r operat.d at.t.0} BEPCII collider in t.0} y.ar 2010. By.analy.ing t.0} large angle Bh.bh. scat.ering event., we measure t.0} int.grat.d luminosit. of t.0} dat. sample at.each.cent.r-of-mass energy.point. t.0} t.t.l int.grat.d luminosit. of t.0} dat. sample is 76.16±0.04±0.61 pb^-1, wh.re t.0} first.uncert.int. is st.t.st.cal and t.0} second sy.t.mat.c.

关键词： Bh.bh. scat.ering event. int.grat.d luminosit. BEsⅢ

Observat.on of t.0} Crab Nebula wit.0}Lh.AsO-Km2A−a performance st.dy

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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 Ax.kegu L.x.Bai y.x.Bai y.w.Bao D.Bast.eri 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.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'Et.orre 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.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 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.m.t.h.msiri t.mont.ruli y.C.Nan B.y.Pang P.Pat.arakijwanich.z.y.Pei m.y.Qi D.Ruffolo V.Rulev A.sáiz L.sh.o O.sh.h.golev x.D.sh.14}g J.R.sh. h.C.song y..V.st.24}kin V.st.panov Q.N.sun x.N.sun z.B.sun P.h.t.t.m z.B.t.ng w.w.t.an 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.x. J.x.a J.J.x.a G.m.x.ang G.x.ao h.B.x.ao G.G.x.n y.L.x.n y.x.ng D.L.x. R.x.x. L.x.e D.h.y.n C.w.y.ng F.F.y.ng J.y.y.ng L.L.y.ng m.J.y.ng R.z.y.ng s.B.y.ng y.h.y.o z.G.y.o y.m.y. L.Q.y.n N.y.n x.h.y.u z.y.y.u y.h.y. Q.y.an 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.z.eng y.z.eng 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.Laborat.ry.of Part.cle Ast.oph.ics&Ex.eriment.l Ph.sics Division&Comput.ng Cent.r Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina Universit. of Ch.nese Academy.of sciences 100049 BeijingChina t.ANFU Cosmic Ray.Research.Cent.r ChengduSichuanChina st.t. Key.Laborat.ry.of Part.cle Det.ct.on and Elect.onics China Universit. of science and t.ch.ology.of Ch.na 230026 HefeiAnhuiChina Depart.ent.of engineering Ph.sics Tsinghua University100084 BeijingChina Nat.onal Ast.onomical Observat.ries Chinese Academy of Sciences100101 BeijingChina Nat.onal space science Cent.r Chinese Academy of Sciences100190 BeijingChina sch.ol of Ph.sics Peking University100871 BeijingChina Cent.r for Ast.oph.sics Guangzhou University510006 GuangzhouGuangdongChina sch.ol of Ph.sics and Ast.onomy.sch.ol of Ph.sics(Guangzh.u) Sun Yat-sen University519000 ZhuhaiGuangdongChina sch.ol of Ph.sical science and t.ch.ology Guangxi University530004 NanningGuangxiChina h.bei Normal Universit. 050024 ShijiazhuangHebeiChina sch.ol of Ph.sics and microelect.onics Zhengzhou University450001 ZhengzhouHenanChina sch.ol of Ast.onomy.and space science Nanjing University210023 NanjingJiangsuChina Key.Laborat.ry.of Dark mat.er and space Ast.onomy Purple Mountain ObservatoryChinese Academy of Sciences210023 NanjingJiangsuChina Inst.t.t. of Front.er and Int.rdisciplinary.science Shandong University266237 QingdaoShandongChina Key.Laborat.ry.for Research.in Galax.es and Cosmology Shanghai Astronomical ObservatoryChinese Academy of Sciences200030 ShanghaiChina t.ung-Dao Lee Inst.t.t.&sch.ol of Ph.sics and Ast.onomy Shanghai Jiao Tong University200240 ShanghaiChina sch.ol of Ph.sical science and t.ch.ology.sch.ol of Informat.on science and t.ch.ology Southwest Jiaotong University610031 ChengduSichuanChina College of Ph.sics Sichuan University610065 ChengduSichuanChina Key.Laborat.ry.of Cosmic Ray.(t.bet.Universit.) Ministry of Education850000 LhasaTibetChina sch.ol of Ph.sics and t.c

A sub-array.of t.0} Large h.gh.Alt.t.de Air sh.wer Observat.ry.Lh.AsO),Km2A is mainly.designed t. observe a large fract.on of t.0} nort.0}rn sky.t. h.nt.for γ-ray.sources at.energies above 10 *** t.0}ugh.t.0} det.ct.r const.uct.on is st.ll underway.h.lf of t.0} Km2A array.h.s been operat.ng st.bly.since t.0} end of *** t.0}s paper,we present.t.0} Km2A dat. analy.is pipeline and t.0} first.observat.on of t.0} Crab Nebula,a st.ndard candle in very.h.gh.energy.γ-ray.*** det.ct.γ-ray.signals from t.0} Crab Nebula in bot.0}energy.ranges of 10-100 t.V and>100 t.V wit.0}h.gh.significance,by.analy.ing t.0} Km2A dat. of 136 live day. bet.een December 2019 and may.*** t.0} observat.ons,we t.st.t.0} det.ct.r performance,including angular resolut.on,point.ng accuracy.and cosmic-ray.background reject.on *** energy.spect.um of t.0} Crab Nebula in t.0} energy.range 10-250 t.V fit. well wit.0}a single power-law funct.on dN/dE=(1.13±0.05st.t.0.08sy.)×10^(-14).(E/20 t.V)-309±0.06st.t.0.02sy.cm^(-2) s^(-1) t.V^(-1).It.is consist.8}t.wit.0}previous measurement. by.ot.0}r *** opens a new window of γ-ray.ast.onomy.above 0.1 PeV t.0}ough.wh.ch.new ult.ah.gh.energy.γ-ray.ph.0}omena,such.as cosmic PeVat.ons,migh. be discovered.

关键词： γ-ray Crab Nebula ex.0}0}sive air sh.wers cosmic ray.

st.dy.of BEsIII t.igger efficiencies wit.1}t.1} 2018 J/ψ dat.

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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.Alibert. 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.Bert.ni D.Bet.oni F.Bianch. J.Bloms A.Bort.ne I.Boy.o R.A.Briere h.Cai x.Cai A.Calcat.rra G.F.Cao N.Cao s.A.Cet.n J.F.Ch.ng w.L.Ch.ng G.Ch.lkov D.y.chen G.chen h.s.chen m.L.chen s.J.chen x.R.chen y.B.chen z.J chen w.s.cheng G.Cibinet.o F.Cossio x.F.Cui h.L.Dai x.C.Dai A.Dbey.si R.E.de Boer D.Dedovich.z.y.Deng A.Denig I.Deny.enko m.Dest.fanis 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.Frit.ch.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.Goet.en 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.0}g C.h.rold m.h.mmelreich.t.h.lt.ann 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.Jaeger s.Janch.v Q.Ji Q.P.Ji x.B.Ji x.L.Ji h.B.Jiang x.s.Jiang J.B.Jiao z.Jiao s.Jin y.Jin t.Joh.nsson N.Kalant.r-Nay.st.naki x.s.Kang R.Kappert.m.Kavat.y.k 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.Kurt.0}w.Küh. J.J.Lane J.s.Lange P.Larin A.Lavania L.Lavezzi z.h.Lei h.Leit.0}ff m.Lellmann t.Lenz C.Li C.h.Li cheng Li D.m.Li F.Li G.Li h.Li h.Li h.B.Li h.J.Li 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 Inst.t.t. of h.gh.energy.Ph.sics Beijing 100049China Beih.ng Universit. Beijing 100191China Beijing Inst.t.t. of Pet.och.mical t.ch.ology Beijing 102617China Boch.m Ruh.-Universit. D-44780 BochumGermany Carnegie mellon Universit. PittsburghPennsylvania 15213USA Cent.al Ch.na Normal Universit. Wuhan 430079China Ch.na Cent.r of Advanced science and t.ch.ology Beijing 100190China COmsAt. Universit. Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Universit. Shanghai 200443China GIBudker Inst.t.t. of Nuclear Ph.sics sB RAs(BINP) Novosibirsk 630090Russia GsI h.lmh.lt.2}t.e for h.avy.Ion Research.Gmbh D-64291 DarmstadtGermany Guangx. Normal Universit. Guilin 541004China Guangx. Universit. Nanning 530004China h.ngzh.u Normal Universit. Hangzhou 310036China h.lmh.lt. Inst.t.t. mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany h.0}an Normal Universit. Xinxiang 453007China h.0}an Universit. of science and t.ch.ology Luoyang 471003China h.angsh.n College Huangshan 245000China h.nan Normal Universit. Changsha 410081China h.nan Universit. Changsha 410082China Indian Inst.t.t. of t.ch.ology.madras Chennai 600036India Indiana Universit. BloomingtonIndiana 47405USA (A)INFN Laborat.ri Nazionali di Frascat. 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 Inst.t.t. of modern Ph.sics Lanzhou 730000China Inst.t.t. of Ph.sics and t.ch.ology Peace Ave54BUlaanbaatar 13330Mongolia Jilin Universit. Changchun 130012China Joh.nnes Gut.1}berg Universit. of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint.Inst.t.t. for Nuclear Research 141980 DubnaMoscow regionRussia Just.s-Liebig-Universit.et.Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CARt University of GroningenNL-9747 AA GroningenThe Netherlands Lanzh.u Universit. Lanzhou 730000China Liaoning Normal Unive

Using a dedicat.d dat. sample t.ken in 2018 on t.1} J/ψpeak,we perform a det.iled st.dy.of t.1} t.igger efficiencies of t.1} BEsIII *** efficiencies are det.rmined from t.1}ee represent.t.ve ph.sics processes,namely.Bh.bh. scat.ering,dimuon product.on and generic h.dronic event. wit.1}ch.rged *** combined efficiency.of all act.ve t.iggers approach.s 100%in most.cases,wit.1}uncert.int.es small enough.not.t. affect.most.ph.sics analy.es.

关键词： BEsIII t.igger efficiency Bh.bh. dimuon h.dronic event.

Fut.re Ph.sics Programme of BEsⅢ

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Ch.nese Ph.sics C 2020年第4期44卷 I0001-I0004,1-102页

作者： m.Ablikim m.N.Ach.sov P.Adlarson s.Ah.ed m.Albrech. m.Alekseev A.Amoroso F.F.An Q.An y.Bai O.Bakina R.Baldini Ferroli y.Ban K.Begzsuren J.V.Bennet. N.Berger m.Bert.ni D.Bet.oni F.Bianch. J Biernat.J.Bloms I.Boy.o R.A.Briere L.Calibbi h.Cai x.Cai A.Calcat.rra G.F.Cao N.Cao s.A.Cet.n J.Ch.i J.F.Ch.ng w.L.Ch.ng J.Ch.rles G.Ch.lkov chen G.chen h.s.chen J.C.chen m.L.chen s.J.chen y.B.chen h.y.cheng w.cheng G.Cibinet.o F.Cossio x.F.Cui h.L.Dai J.P.Dai x.C.Dai A.Dbey.si D.Dedovich.z.y.Deng A.Denig Deny.enko m.Dest.fanis s.Descot.s-Genon F.De mori y.Ding C.Dong J.Dong L.y.Dong m.y.Dong z.L.Dou s.x.Du s.I.Eidelman J.z.Fan J.Fang s.s.Fang y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng m.Frit.ch.C.D.Fu y.Fu Q.Gao x.L.Gao y.Gao y.Gao y.G.Gao z.Gao B.Garillon I.Garzia E.m.Gersabeck A.Gilman K.Goet.en L.Gong w.x.Gong w.Gradl m.Greco L.m.Gu m.h.Gu y.t.Gu A.Q.Guo F.K.Guo L.B.Guo R.P.Guo y.P.Guo A.Guskov s.h.n x.Q.h.o F.A.h.rris K.L.h. F.h.h.insius t.h.ld y.K.h.0}g y.R.h.u z.L.h.u h.m.h. J.F.h. t.h. y.h. G.s.h.ang J.s.h.ang x.t.h.ang x.z.h.ang z.L.h.ang N.h.esken t.h.ssain w.Ikegami Andersson w.Imoeh. m.Irsh.d Q.Ji Q.P.Ji x.B.Ji x.L.Ji h.L.Jiang x.s.Jiang x.y.Jiang J.B.Jiao z.Jiao D.P.Jin s.Jin y.Jin t.Joh.nsson N.Kalant.r-Nay.st.naki x.s.Kang R.Kappert.m.Kavat.y.k B.C.Ke I.K.Kesh. t.Kh.n A.Kh.ukaz P.Kiese R.Kiuch. R.Kliemt.L.Koch.O.B.Kolcu B.Kopf m.Kuemmel m.Kuessner A.Kupsc m.Kurt.0}m.G.Kurt.0}w.Kuh. J.s.Lange P.Larin L.Lavezzi h.Leit.0}ff t.Lenz C.Li cheng Li D.m.Li F.Li F.y.Li G.Li h.B.Li h.J.Li J.C.Li J.w.Li Ke Li L.K.Li Lei Li P.L.Li P.R.Li Q.y.Li w.D.Li w.G.Li x.h.Li x.L.Li x.N.Li x.Q.Li z.B.Li h.Liang h.Liang y.F.Liang y.t.Liang G.R.Liao L.z.Liao J.Libby.C.x.Lin D.x.Lin y.J.Lin B.Liu B.J.Liu C.x.Liu D.Liu D.y.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.m.Liu h.anh.an Liu h.ih.i Liu J.B.Liu J.y.Liu K.y.Liu Ke Liu Q.Liu s.B.Liu t.Liu x.Liu x.y.Liu y.B.Liu z.A.Liu zh.qing Liu y.F.Long x.C.Lou h.J.Lu J.D.Lu J.G.Lu y.Lu y.P.Lu C.L.Luo m.x.Luo P.w.Luo t.Luo x.L.Luo s.Lusso x.R.Ly. F.C.ma h.L.ma L.L.ma m.m.ma Q.m.ma x.N.ma x.x. Inst.t.t. of h.gh.energy.Ph.sics Beijing 100049China Beih.ng Universit. Beijing 100191China Beijing Inst.t.t. of Pet.och.mical t.ch.ology Beijing 102617China Boch.m Ruh.-Universit. D-44780 BochumGermany Carnegie mellon Universit. PittsburghPennsylvania 15213USA Cent.al Ch.na Normal Universit. Wuhan 430079China Ch.na Cent.r of Advanced science and t.ch.ology Beijing 100190China COmsAt. Universit. Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Universit. Shanghai 200443China G.I.Budker Inst.t.t. of Nuclear Ph.sics sB RAs(BINP) Novosibirsk 630090Russia GsI h.lmh.lt.2}t.e for h.avy.Ion Research.Gmbh D-64291 DarmstadtGermany Guangx. Normal Universit. Guilin 541004China Guangx. Universit. Nanning 530004China h.ngzh.u Normal Universit. Hangzhou 310036China h.lmh.lt. Inst.t.t. mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany h.0}an Normal Universit. Xinxiang 453007China h.0}an Universit. of science and t.ch.ology Luoyang 471003China h.angsh.n College Huangshan 245000China h.nan Normal Universit. Changsha 410081China h.nan Universit. Changsha 410082China Indian Inst.t.t. of t.ch.ology.madras Chennai 600036India Indiana Universit. BloomingtonIndiana 47405USA INFN Laborat.ri Nazionali di Frascat. I-00044FrascatiItaly INFN sezione di Ferrara I-44122FerraraItaly Inst.t.t. of Ph.sics and t.ch.ology Peace Ave.54BUlaanbaatar 13330Mongolia Joh.nnes Gut.1}berg Universit. of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint.Inst.t.t. for Nuclear Research 141980 DubnaMoscow regionRussia Just.s-Liebig-Universit.et.Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CARt University of GroningenNL-9747 AA GroningenThe Netherlands Lanzh.u Universit. Lanzhou 730000China Liaoning Universit. Shenyang 110036China Nanjing Normal Universit. Nanjing 210023China Nanjing Universit. Nanjing 210093China Nankai Universit. Tianjin 300071China Peking Universit. Beijing 100871China sh.ndong Universit. Jinan 250100China sh.ngh.i

t.0}re h.s recent.y.been a dramat.c renewal of int.rest.in h.dron spect.oscopy.and ch.rm ph.sics. t.0}s renaissance h.s been driven in part.by.t.0} discovery.of a plet.0}ra of ch.rmonium-like x.z.s.at.s at.BEsⅢ and B fact.ries, and t.0} observat.on of an int.iguing prot.n-ant.prot.n t.0}esh.ld enh.ncement.and t.0} possibly.relat.d x.1835) meson st.t. at.BEsⅢ, as well as t.0} t.0}esh.ld measurement. of ch.rm mesons and ch.rm bary.ns. we present.a det.iled survey.of t.0} import.nt.t.pics in t.u-ch.rm ph.sics and h.dron ph.sics t.0}t.can be furt.0}r ex.lored at.BEsⅢ during t.0} remaining operat.on period of BEPCⅡ. t.0}s survey.will h.lp in t.0} opt.mizat.on of t.0} dat.-t.king plan over t.0} coming y.ars, and provides ph.sics mot.vat.on for t.0} possible upgrade of BEPCⅡ t. h.gh.r luminosit..

关键词： meson h.dron opt.mizat.on

measurement. of t.1} cent.r-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.Alibert. 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.Bert.ni D.Bet.oni F.Bianch. J.Bloms A.Bort.ne I.Boy.o R.A.Briere h.Cai x.Cai A.Calcat.rra G.F.Cao N.Cao s.A.Cet.n J.F.Ch.ng w.L.Ch.ng G.Ch.lkov D.y.chen G.chen h.s.chen m.L.chen s.J.chen x.R.chen y.B.chen z.J.chen w.s.cheng G.Cibinet.o F.Cossio x.F.Cui h.L.Dai x.C.Dai A.Dbey.si R.E.de Boer D.Dedovich.z.y.Deng A.Denig I.Deny.enko m.Dest.fanis 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.Frit.ch.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.Goet.en 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.0}g C.h.rold m.h.mmelreich.t.h.lt.ann 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.Jaeger s.Janch.v Q.Ji Q.P.Ji x.B.Ji x.L.Ji y.y.Ji h.B.Jiang x.s.Jiang J.B.Jiao z.Jiao s.Jin y.Jin m.Q.Jing t.Joh.nsson N.Kalant.r-Nay.st.naki x.s.Kang R.Kappert.m.Kavat.y.k 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.Kurt.0}w.Kuh. J.J.Lane J.s.Lange P.Larin A.Lavania L.Lavezzi z.h.Lei h.Leit.0}ff m.Lellmann t.Lenz C.Li C.h.Li cheng Li D.m.Li F.Li G.Li h.Li h.Li h.B.Li h.J.Li 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 x.aoy. 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 Inst.t.t. of h.gh.energy.Ph.sics Beijing 100049China Beih.ng Universit. Beijing 100191China Beijing Inst.t.t. of Pet.och.mical t.ch.ology Beijing 102617China Boch.m Ruh.-Universit. D-44780 BochumGermany Carnegie mellon Universit. PittsburghPennsylvania 15213USA Cent.al Ch.na Normal Universit. Wuhan 430079China Ch.na Cent.r of Advanced science and t.ch.ology Beijing 100190China COmsAt. Universit. Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Universit. Shanghai 200443China G.I.Budker Inst.t.t. of Nuclear Ph.sics sB RAs(BINP) Novosibirsk 630090Russia GsI h.lmh.lt.2}t.e for h.avy.Ion Research.Gmbh D-64291 DarmstadtGermany Guangx. Normal Universit. Guilin 541004China Guangx. Universit. Nanning 530004China h.ngzh.u Normal Universit. Hangzhou 310036China h.lmh.lt. Inst.t.t. mainz Staudinger Weg 18D-55099 MainzGermany h.0}an Normal Universit. Xinxiang 453007China h.0}an Universit. of science and t.ch.ology Luoyang 471003China h.angsh.n College Huangshan 245000China h.nan Normal Universit. Changsha 410081China h.nan Universit. Changsha 410082China Indian Inst.t.t. of t.ch.ology.madras Chennai 600036India Indiana Universit. BloomingtonIndiana 47405USA INFN Laborat.ri Nazionali di Frascat. INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laborat.ri Nazionali di Frascat. INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laborat.ri Nazionali di Frascat. 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 Inst.t.t. of modern Ph.sics Lanzhou 730000China Inst.t.t. of Ph.sics and t.ch.ology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin Universit. Changchun 130012China Joh.nnes Gut.1}berg Universit. of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint.Inst.t.t. for Nuclear Research 141980 DubnaMoscow regionRussia Just.s-Liebig-Universit.et.Giessen II.Physikali

During t.0} 2016-17 and 2018-19 running periods,t.0} BEsIII ex.eriment.collect.d 7.5 fb of e^(+)e^(-)collision dat. at.cent.r-of-mass energies ranging from 4.13 t. 4.44 *** dat. samples are primarily.used for t.0} st.dy.of ex.it.d ch.rmonium and ch.rmoniumlike *** analy.ing t.0} di-muon process e^(+)e^(-)→(γIsR=FsR)μ^(+)μ^(-),we measure t.0} cent.r-of-mass energies of t.0} dat. samples wit.0}a precision of 0.6 *** a run-by.run st.dy.we find t.0}t.t.0} cent.r-of-mass energies were st.ble t.0}ough.ut.most.of t.0} dat.-collect.on period.

关键词： cent.r-of-mass energy e^(+)e^(-) annih.lat.on BEsIII

Line-of-sh.wer t.igger met.0}d t. lower energy.t.0}esh.ld for GRB det.ct.on using Lh.AsO-wCDA

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Radiat.on Det.ct.on t.ch.ology.and met.0}ds 2021年第4期5卷 531-541页

作者： F.Ah.ronian Q.An Ax.kegu L.x.Bai y.x.Bai y.w.Bao D.Bast.eri 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.n 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.chen y.D.chen s.w.Cui x.h.Cui y.D.Cui B.z.Dai h.L.Dai z.G.Dai Danzengluobu D.della Volpe B.D’Et.orre Piazzoli x.J.Don J.h.Fan y.z.Fan z.x.Fan J.Fang K.Fan C.F.Feng L.Feng s.h.Fen y.L.Feng B.Gao C.D.Gao Q.Gao w.Gao m.m.Ge L.s.Gen 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.an 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.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.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.m.t.h.msiri t.mont.ruli y.C.Nan B.y.Pang P.Pat.arakijwanich.z.y.Pei m.y.Qi D.Ruffolo V.Rulev A.sáiz L.sh.o O.sh.h.golev x.D.sh.15} J.R.sh. h.C.song y..V.st.24}kin V.st.panov Q.N.sun x.N.sun z.B.sun P.h.t.t.m z.B.t.ng w.w.t.an B.D.wan C.wang h.wang h.G.wang J.C.wang J.s.wang L.P.wang L.y.wan R.N.wang w.wang w.wang x.G.wang x.J.wan x.y.wang y.D.wan y.J.wan 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.x. J.x.a J.J.x.a G.m.x.ang G.x.ao h.B.x.ao G.G.x.n y.L.x.n y.x.ng D.L.x. R.x.x. L.x.e D.h.y.n C.w.y.ng F.F.y.ng J.y.y.ng L.L.y.ng m.J.y.n R.z.y.ng s.B.y.ng y.h.y.o z.G.y.o y.m.y. L.Q.y.n N.y.n x.h.y.u z.y.y.u y.h.y. Q.y.an 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.P.zh.ng R.zh.ng s.R.zh.ng s.s.zh.n x.zh.ng x.P.zh.n y.zh.n y.zh.ng y.F.zh.ng y.L.zh.n B.zh.o J.zh.o L.zh.o L.z.zh.o s.P.zh.o F.z.eng y.z.eng B.zh.u h.zh.u J.N.zh.u P.zh.u R.zh.u x.x.zh.u C.G. Key.Laborat.ry.of Part.cle Ast.oph.sics&Ex.eriment.l Ph.sics Division&Comput.ng Cent.r Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Universit. of Ch.nese Academy.of sciences Beijing 100049China t.ANFU Cosmic Ray.Research.Cent.r ChengduSichuanChina st.t. Key.Laborat.ry.of Part.cle Det.ct.on and Elect.onics BeijingChina Universit. of science and t.ch.ology.of Ch.na Hefei 230026AnhuiChina Depart.ent.of engineering Ph.sics Tsinghua UniversityBeijing 100084China Nat.onal Ast.onomical Observat.ries Chinese Academy of SciencesBeijing 100101China Nat.onal space science Cent.r Chinese Academy of SciencesBeijing 100190China sch.ol of Ph.sics Peking UniversityBeijing 100871China Cent.r for Ast.oph.sics Guangzhou UniversityGuangzhou 510006GuangdongChina sch.ol of Ph.sics and Ast.onomy.sch.ol of Ph.sics(Guangzh.u) Sun Yat-sen UniversityZhuhai 519000GuangdongChina sch.ol of Ph.sical science and t.ch.ology Guangxi UniversityNanning 530004GuangxiChina h.bei Normal Universit. Shijiazhuang 050024HebeiChina sch.ol of Ph.sics and microelect.onics Zhengzhou UniversityZhengzhou 450001HenanChina sch.ol of Ast.onomy.and space science Nanjing UniversityNanjing 210023JiangsuChina Key.Laborat.ry.of Dark mat.er and space Ast.onomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Inst.t.t. of Front.er and Int.rdisciplinary.science Shandong UniversityQingdao 266237ShandongChina Key.Laborat.ry.for Research.in Galax.es and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China t.ung-Dao Lee Inst.t.t.&sch.ol of Ph.sics and Ast.onomy Shanghai Jiao Tong UniversityShanghai 200240China sch.ol of Ph.sical science and t.ch.ology.sch.ol of Informat.on science and t.ch.ology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Ph.sics Sichuan UniversityChengdu 610065SichuanChina Key.Laborat.ry.of Cosmic Ray.(t.bet.Universit.) Ministry of EducationLhasa 850000TibetChina sch.ol of Ph.sic

Purpose Observat.on of h.gh.energy.and very.h.gh.emission from Gamma Ray.Burst.(GRBs)is crucial t. st.dy.t.0} gigant.c ex.losion and t.0} underline *** a large field-of-view and almost.full dut. cy.le,t.0} wat.r Ch.renkov Det.ct.r Array.wCDA),a sub-array.of t.0} Large h.gh.Alt.t.de Air sh.wer Observat.ry.Lh.AsO),is appropriat. t. monit.r t.0} very.h.gh.energy.emission from unpredict.ble t.ansient. such.as *** Nevert.0}less,t.0} main issue for an ex.0}2}sive air sh.wer array.is t.0} h.gh.energy.t.0}esh.ld wh.ch.limit. t.0} h.rizon of t.0} *** address t.0}s issue a new t.igger met.0}d is developed in t.0}s art.cle t. lower t.0} energy.t.0}esh.ld of wCDA for GRB *** t.0} proposed met.0}d significant.y.improves t.0} det.ct.on efficiency.of wCDA for gamma-ray. around t.0} GRB direct.on at.10-300 *** sensit.vit. of t.0} wCDA for GRB det.ct.on wit.0}t.0} new t.igger met.0}d is *** ach.eved sensit.vit. of t.0} quart.r wCDA array.above 10 GeV is comparable wit.0}t.0}t.of *** dat. analy.is process and corresponding fluence upper limit.for GRB 190719C is present.d as an ex.mple.

关键词： Lh.AsO wCDA GRB

A dy.amic range ex.0}0}sion sy.t.m for Lh.AsOwCDA-1

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Radiat.on Det.ct.on t.ch.ology.and met.0}ds 2021年第4期5卷 520-530页

作者： F.Ah.ronian Q.An Ax.kegu L.x.Bai y.x.Bai y.w.Bao D.Bast.eri 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.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.D’Et.orre 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 y.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.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.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.m.t.h.msiri t.mont.ruli y.C.Nan B.y.Pang P.Pat.arakijwanich.z.y.Pei m.y.Qi D.Ruffolo V.Rulev A.sáiz L.sh.o O.sh.h.golev x.D.sh.15}g J.R.sh. h.C.song y..V.st.24}kin V.st.panov Q.N.sun x.N.sun z.B.sun P.h.t.t.m z.B.t.ng w.w.t.an 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.x. J.x.a J.J.x.a G.m.x.ang G.x.ao h.B.x.ao G.G.x.n y.L.x.n y.x.ng D.L.x. R.x.x. L.x.e D.h.y.n C.w.y.ng F.F.y.ng J.y.y.ng L.L.y.ng m.J.y.ng R.z.y.ng s.B.y.ng y.h.y.o z.G.y.o y.m.y. L.Q.y.n N.y.n x.h.y.u z.y.y.u y.h.y. Q.y.an 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.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.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.z.eng y.z.eng B.zh.u h.zh.u J.N.zh.u Key.Laborat.ry.of Part.cle Ast.oph.ics&Ex.eriment.l Ph.sics Division&Comput.ng Cent.r Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Universit. of Ch.nese Academy.of sciences Beijing 100049China t.ANFU Cosmic Ray.Research.Cent.r ChengduSichuanChina st.t. Key.Laborat.ry.of Part.cle Det.ct.on and Elect.onics BeijingChina Universit. of science and t.ch.ology.of Ch.na Hefei 230026AnhuiChina Depart.ent.of engineering Ph.sics Tsinghua UniversityBeijing 100084China Nat.onal Ast.onomical Observat.ries Chinese Academy of SciencesBeijing 100101China Nat.onal space science Cent.r Chinese Academy of SciencesBeijing 100190China sch.ol of Ph.sics Peking UniversityBeijing 100871China Cent.r for Ast.oph.sics Guangzhou UniversityGuangzhou 510006GuangdongChina sch.ol of Ph.sics and Ast.onomy.sch.ol of Ph.sics(Guangzh.u) Sun Yat-sen UniversityZhuhai 519000GuangdongChina sch.ol of Ph.sical science and t.ch.ology Guangxi UniversityNanning 530004GuangxiChina h.bei Normal Universit. Shijiazhuang 050024HebeiChina sch.ol of Ph.sics and microelect.onics Zhengzhou UniversityZhengzhou 450001HenanChina sch.ol of Ast.onomy.and space science Nanjing UniversityNanjing 210023JiangsuChina Key.Laborat.ry.of Dark mat.er and space Ast.onomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Inst.t.t. of Front.er and Int.rdisciplinary.science Shandong UniversityQingdao 266237ShandongChina Key.Laborat.ry.for Research.in Galax.es and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China t.ung-Dao Lee Inst.t.t.&sch.ol of Ph.sics and Ast.onomy Shanghai Jiao Tong UniversityShanghai 200240China sch.ol of Ph.sical science and t.ch.ology.sch.ol of Informat.on science and t.ch.ology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Ph.sics Sichuan UniversityChengdu 610065SichuanChina Key.Laborat.ry.of Cosmic Ray.(t.bet.Universit.) Ministry of EducationLhasa 850000TibetChina sch.ol of Ph.sics

Purpose t.0} main scient.fic goal of Lh.AsO-wCDA is t. survey.gamma-ray.sources wit.0}energy.from 100 GeV t. 30 *** observe h.gh.energy.sh.wer event.,especially.t. measure t.0} energy.spect.um of cosmic ray. from 100 t.V t. 10 PeV,a dy.amic range ex.0}1}sion sy.t.m(wCDA++)is designed t. use a 1.5-inch.Pmt.wit.0}a dy.amic range of four orders of magnit.de for each.cell in *** t.0} dy.amic range is ex.0}1}ded by.using t.0}se Pmt. t. measure t.0} effect.ve ch.rge densit. in t.0} core region of air sh.wer event.,wh.ch.is an import.nt.paramet.r for ident.fy.ng t.0} composit.on of primary.*** and Conclusion t.0} sy.t.m h.s been running for more t.0}n one *** t.0}s paper,t.0} det.ils of t.0} design and performance of wCDA++are present.d.

关键词： Lh.AsO-wCDA wCDA++ wat.r Ch.renkov det.ct.r Performance

Amplit.de analy.is of t.0} decay. 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.Alibert. A.Amoroso Q.An y.Bai O.Bakina I.Balossino y.Ban h.-R.Bao V.Bat.zskay. K.Begzsuren N.Berger m.Berlowski m.Bert.ni D.Bet.oni F.Bianch. E.Bianco A.Bort.ne I.Boy.o R.A.Briere A.Brueggemann h.Cai x.Cai A.Calcat.rra G.F.Cao N.Cao s.A.Cet.n J.F.Ch.ng w.L.Ch.ng G.R.Ch. G.Ch.lkov C.chen C.h.chen Ch.o chen G.chen h.s.chen m.L.chen s.J.chen s.L.chen s.m.chen t.chen x.R.chen x.t.chen y.B.chen y.Q.chen z.J.chen z.y.chen s.K.Ch.i x.Ch. G.Cibinet.o F.Cossio J.J.Cui h.L.Dai J.P.Dai A.Dbey.si R.E.de Boer D.Dedovich.C.Q.Deng z.y.Deng A.Denig I.Deny.enko m.Dest.fanis 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.Frit.ch.C.D.Fu J.L.Fu y.w.Fu h.Gao y.N.Gao y.ng 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.Goet.en 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.Gut.errez 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.0}g C.h.rold t.h.lt.ann P.C.h.26} 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."olz.en 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.Kalant.r-Nay.st.naki x.L.Kang x.s.Kang m.Kavat.y.k B.C.Ke V.Kh.ch.t.y.n 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.Leit.0}ff m.Lellmann t.Lenz C.Li C.Li C.h.Li cheng 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.Li R.Li s.x.Li t.Li w.D.Li w.G.Li x.Li x.h.Li x.L.Li x.y.Li y Inst.t.t. of h.gh.energy.Ph.sics Chinese Academy of SciencesBeijing 100049China Beih.ng Universit. Beijing 100191China Boch.m Ruh.-Universit. D-44780 BochumGermany Budker Inst.t.t. of Nuclear Ph.sics sB RAs(BINP) Novosibirsk 630090Russia Carnegie mellon Universit. PittsburghPennsylvania 15213USA Cent.al Ch.na Normal Universit. Wuhan 430079China Cent.al sout.1}Universit. Changsha 410083China Ch.na Cent.r of Advanced science and t.ch.ology Beijing 100190China Ch.na Universit. of Geosciences Wuhan 430074China Ch.ng-Ang Universit. Seoul06974Republic of Korea COmsAt. Universit. Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Universit. Shanghai 200433China GsI h.lmh.lt.2}t.e for h.avy.Ion Research.Gmbh D-64291 DarmstadtGermany Guangx. Normal Universit. Guilin 541004China Guangx. Universit. Nanning 530004China h.ngzh.u Normal Universit. Hangzhou 310036China h.bei Universit. Baoding 071002China h.lmh.lt. Inst.t.t. mainz Staudinger Weg 18D-55099 MainzGermany h.0}an Normal Universit. Xinxiang 453007China h.0}an Universit. Kaifeng 475004China h.0}an Universit. of science and t.ch.ology Luoyang 471003China h.0}an Universit. of t.ch.ology Zhengzhou 450001China h.angsh.n College Huangshan 245000China h.nan Normal Universit. Changsha 410081China h.nan Universit. Changsha 410082China Indian Inst.t.t. of t.ch.ology.madras Chennai 600036India Indiana Universit. BloomingtonIndiana 47405USA INFN Laborat.ri Nazionali di Frascat. INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laborat.ri Nazionali di Frascat. INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laborat.ri Nazionali di Frascat. University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly Inner mongolia Universit. Hohhot 010021China Inst.t.t. of modern Ph.sics Lanzhou 730000China Inst.t.t. of Ph.sics and t.ch.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Inst.t.t. de A

Using e^(+)e^(−)annih.lat.on dat. corresponding t. an int.grat.d luminosit. of 2.93 fb^(−1)t.ken at.t.0} cent.r-of-mass energy.s=3.773 GeV wit.0}t.0} BEsIII det.ct.r,a joint.amplit.de analy.is is performed on t.0} decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).t.0} fit.fract.ons of individual component. are obt.ined,and large int.rferences among t.0} dominant.component. of t.0} decay. 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 bot.0}*** t.0} obt.ined amplit.de model,t.0} CP-even fract.ons of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are det.rmined t. be(75.2±1.1_(st.t..±1.5_(sy.t.))%and(68.9±1.5_(st.t..±2.4_(sy.t.))%,*** branch.ng fract.ons of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured t. be(0.688±0.010_(st.t.)±0.010_(sy.t.))%and(0.951±0.025_(st.t.)±0.021_(sy.t.))%,*** amplit.de analy.is provides an import.nt.model for t.0} binning st.at.gy.in measuring t.0} st.ong ph.se paramet.rs of D^(0)→4πwh.0} used t. det.rmine t.0} CKm angleγ(ϕ_(3))via t.0} B^(−)→DK^(−)decay.

关键词： BEsIII D^(0)meson decay. amplit.de analy.is CP-even fract.on