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The Lobster Eye Imager for Astronomy Onboard the SATech-01 Satellite

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

作者： Z.x.Ling x.j.Sun c.Zhang S.L.Sun G.jin S.N.Zhang x.F.Zhang j.B.chang F.S.chen Y.F.chen Z.W.cheng W.Fu Y.x.han h.Li j.F.Li Y.Li Z.d.Li P.R.Liu Y.h.Lv x.h.m. Y.j.Tang c.B.Wang R.j.x.e Y.L.x.e A.L.Yan q.Zhang c.Y.Bao h.B.cai h.q.cheng c.Z.cui Y.F.dai d.W.Fan h.B.hu j.W.hu m.h.huang Z.q.jia c.c.jin d.Y.Li j.q.Li h.Y.Liu m.j.Liu Y.Liu h.W.Pan Y.L.qiu m.Sugizaki h.Sun W.x.Wang Y.L.Wang q.Y.Wu x.P.x. Y.F.x. h.N.yang x.yang B.Zhang m.Zhang W.d.Zhang Z.Zhang d.h.Zhao x.q.cong B.W.jiang L.h.Li x.B.qiu j.N.Sun d.T.Su j.Wang c.Wu Z.x. x.m.yang S.K.Zhang Z.Zhang N.Zhang Y.F.Zhu h.Y.Ban x.Z.Bi Z.m.cai W.chen x.chen Y.h.chen Y.cui x.L.duan Z.G Feng Y.Gao j.W.he T.he j.j.huang F.Li j.S.Li T.j.Li T.T.Li h.q.Liu L.Liu R.Liu S.Liu N.meng q.Shi A.T.Sun Y.m.Wang Y.B.Wang h.c.Wu d.x.x. Y.q.yang Y.yang x.S.Yu K.x.Zhang Y.L.Zhang Y.h.Zhang Y.T.Zhang h.Zhou x.c.Zhu j.S.cheng L.q.n L.Wang q.L.Wang m.Bai R.L.Gao Z.ji Y.R.Liu F.L.ma Y.j.Shi j.Su Y.Y.Tan j.Z.Tong h.T.x. c.B.x.e G.F.x.e W.Yuan National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083China North Night Vision Technology co. LTDNanjing 211106China Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China Science and Technology on Low-Light-Level Night Vision Laboratory Xi'an 710065China Innovation Academy for microsatellites Chinese Academy of SciencesShanghai 201204China Institute of Electrical Engineering Chinese Academy of ScienceBeijing 100190China National Space Science center Chinese Academy of ScienceBeijing 100190China

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

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

An effective approach for bonding of TZm and Nb-Zr system:microstructure evolution,mechanical properties,and bonding mechanism

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journal of materials Science & Technology 2021年第25期84卷 16-26页

作者： Z.W.yang j.m.Lin j.F.Zhang q.W.qiu Y.Wang d.P.Wang j.Song Tianjin Key Lab of Advanced.j.ining Technology School of Materials Science and EngineeringTianjin UniversityTianjin300072China department of mining and materials Engineering McGill UniversityMontréalQuébecH3A 0C5Canada

A novel method of liq.id metallic film(LmF)bonding was developed to join titanium zirconium molybdenum alloy(TZm)and Nb-Zr alloy with a Ni *** this method,a Ni-Zr liq.id phase was formed by the eutectic reaction and then sq.eezed out from the gap due to a transient pressure,leaving an *** not only achieved a reliable metallurgical bonding but also served as a transition layer between TZm and Nb-Zr alloy to reduce the mismatch between th.m.thus further improving its *** bonding mechanism of the TZm and Nb-Zr system was discussed based on theoretical calculation and high-resolution microscopy *** advantages of this method were established by comparing the microstructure and mechanical properties of LmF bonded.j.ints with that of traditional contact-reaction brazing and direct diffusion ***,the feasibility of the LmF bonding method was also demonstrated by the reliable joining of other high-temperature and immiscible systems.

关键词： Bonding Titanium zirconium molybdenum alloy(TZm) diffusion microstructure mechanical properties

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

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

作者： m.Achasov x.c.Ai L.P.An R.Aliberti q.An x.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov d.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.h.Bu F.m.cai h.cai j.j.cao q.h.cao x.cao Z.cao q.chang K.T.chao d.Y.chen h.chen h.x.chen j.F.chen K.chen L.L.chen P.chen S.L.chen S.m.chen S.chen S.P.chen W.chen x.chen x.F.chen x.R.chen Y.chen Y.q.chen h.Y.cheng j.cheng S.cheng T.G.cheng j.P.dai L.Y.dai x.c.dai d.dedovich A.denig I.denisenko j.m.dias d.Z.ding L.Y.dong W.h.dong V.druzhinin d.S.du Y.j.du Z.G.du L.m.duan d.Epifanov Y.L.Fan S.S.Fang Z.j.Fang G.Fedotovich c.q.Feng x.Feng Y.T.Feng j.L.Fu j.Gao Y.N.Gao P.S.Ge c.q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl j.L.Gu A.Guevara L.c.Gui A.q.Guo F.K.Guo j.c.Guo j.Guo Y.P.Guo Z.h.Guo A.Guskov K.L.han L.han m.han x.q.hao j.B.he S.q.he x.G.he Y.L.he Z.B.he Z.x.heng B.L.hou T.j.hou Y.R.hou c.Y.hu h.m.hu K.hu R.j.hu W.h.hu x.h.hu Y.c.h. j.hua G.S.huang j.S.huang m.huang q.Y.huang W.q.huang x.T.huang x.j.huang Y.B.huang Y.S.huang N.hüsken V.Ivanov q.P.ji j.j.jia S.jia Z.K.jia h.B.jiang j.jiang S.Z.jiang j.B.jiao Z.jiao h.j.jing x.L.Kang x.S.Kang B.c.Ke m.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev c.h.Li c.Li d.Y.Li F.Li G.Li G.Li h.B.Li h.Li h.N.Li h.j.Li h.L.Li j.m.Li j.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.h.Li S.Li T.Li W.j.Li x.Li x.h.Li x.q.Li x.h.Li Y.Li Y.Y.Li Z.j.Li h.Liang j.h.Liang Y.T.Liang G.R.Liao L.Z.Liao Y.Liao c.x.Lin d.x.Lin x.S.Lin B.j.Liu c.W.Liu d.Liu F.Liu G.m.Liu h.B.Liu j.Liu j.j.Liu j.B.Liu K.Liu K.Y.Liu K.Liu L.Liu q.Liu S.B.Liu T.Liu x.Liu Y.W.Liu Y.Liu Y.L.Liu Z.q.Liu Z.Y.Liu Z.W.Liu I.Logashenko Y.Long c.G.Lu j.x.Lu N.Lu q.F.Lü Y.Lu Y.Lu Z.Lu P.Lukin F.j.Luo T.Luo x.F.Luo Y.h.Luo h.j.Lyu x.R.Lyu j.P.ma P.ma Y.ma Y.m.ma F.maas S.malde d.matvienko Z.x.meng R.mitchell A.Nefediev Y.Nefedov S.L.Olsen q.Ouyang P.Pakhlov G.Pakhlova x.Pan Y.Pan E.Passemar Y.P.Pei h.P.Peng L.Peng x.Y.Peng x.j.Peng K.Peters S.Pivovarov E.Pyata B.B.q. Y.q.q. W.B.q.an Y.q.an c.F.q.ao j.j.q.n j.j.q.n L.q.q.n x.S.q.n T.L.qiu j.Rademacker c.F.Redmer h.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia cAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom central china Normal University Wuhan 430079China central South University Changsha 410083China china University of Geosciences Wuhan 430074China china University of mining and Technology Xuzhou 221116China École Polytechniq.e Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangx. Normal University Guilin 541004China Guangx. Uninversity Nanning 530004China hangzhou Institute for Advanced Study UCASHangzhou 310024China hebei Normal University Shijiazhuang 050024China hebei University Baoding 071002China hefei University of Technology Hefei 230601China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China high Energy Physics center Chung-Ang UniversitySeoul 06974Korea higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia huangshan University Huangshan 245000China hubei University of Automotive Technology Shiyan 442002China hunan Normal University Changsha 410081China hunan University of Science and Technology Xiangtan 411201China hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China jilin University Changch

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

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

Study of BESIII trigger efficiencies with the 2018 j/ψ data

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chinese Physics c 2021年第2期45卷 48-55页

作者： m.Ablikim m.N.Achasov P.Adlarson S.Ahmed m.Albrecht 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.Bianchi 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.chang W.L.chang G.chelkov 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.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.han W.Y.han x.q.hao F.A.harris h hüsken K.L.he F.h.heinsius c.h.heinz T.held Y.K.heng c.h.rold m.h.m.elreich T.holtmann Y.R.hou Z.L.hou h.m.hu j.F.hu T.hu Y.hu G.S.huang L.q.huang x.T.huang Y.P.huang Z.huang T.hussain W.Ikegami Andersson W.Imoehl m.Irshad S.jaeger S.janchiv 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.johansson N.Kalantar-Nayestanaki x.S.Kang R.Kappert m.Kavatsyuk B.c.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf m.Kuemmel m.Kuessner A.Kupsc m.G.Kurth W.Kühn j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi Z.h.Lei h.Leithoff 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 huanhuan Liu huihui 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 Shuai 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 high Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petroch.m.cal Technology Beijing 102617China Boch.m.Ruhr-University D-44780 BochumGermany carnegie mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China china center of Advanced Science and Technology Beijing 100190China cOmSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China GIBudker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangx. Normal University Guilin 541004China Guangx. University Nanning 530004China hangzhou Normal University Hangzhou 310036China helmholtz Institute mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of Science and Technology Luoyang 471003China huangshan college Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA (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 Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave54BUlaanbaatar 13330Mongolia jilin University Changchun 130012China johannes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia justus-Liebig-Universitaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-cART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning Normal Unive

Using a dedicated data sample taken in 2018 on the j/ψpeak,we perform a detailed study of the trigger efficiencies of the BESIII *** efficiencies are determined from three representative physics processes,namely Bhabha scattering,dimuon production and generic.h.dronic events with charged *** combined efficiency of all active triggers approaches 100%in most cases,with uncertainties small enough not to affect most physics analyses.

关键词： BESIII trigger efficiency Bhabha dimuon hadronic events

measurements of the center-of-mass energies of e^(+)e^(-)collisions at BESIII

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chinese Physics c 2021年第10期45卷 7-15页

作者： m.Ablikim m.N.Achasov P.Adlarson S.Ahmed m.Albrecht 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.Bianchi 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.chang W.L.chang G.chelkov 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.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.han W.Y.han x.q.hao F.A.harris K.L.he F.h.heinsius c.h.heinz T.held Y.K.heng c.h.rold m.h.m.elreich T.holtmann G.Y.hou Y.R.hou Z.L.hou h.m.hu j.F.hu T.hu Y.hu G.S.huang L.q.huang x.T.huang Y.P.huang Z.huang T.hussain N husken W.Ikegami Andersson W.Imoehl m.Irshad S.jaeger S.janchiv 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.johansson N.Kalantar-Nayestanaki x.S.Kang R.Kappert m.Kavatsyuk B.c.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf m.Kuemmel m.Kuessner A.Kupsc m.G.Kurth W.Kuhn j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi Z.h.Lei h.Leithoff 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.aoyu 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 huanhuan Liu huihui 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 Shuai 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 high Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petroch.m.cal Technology Beijing 102617China Boch.m.Ruhr-University D-44780 BochumGermany carnegie mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China china center of Advanced Science and Technology Beijing 100190China cOmSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangx. Normal University Guilin 541004China Guangx. University Nanning 530004China hangzhou Normal University Hangzhou 310036China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of Science and Technology Luoyang 471003China huangshan college Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati 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 Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia jilin University Changchun 130012China johannes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia justus-Liebig-Universitaet Giessen II.Physikali

during the 2016-17 and 2018-19 running periods,the BESIII ex.eriment 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 the study of ex.ited charmonium and charmoniumlike *** analyzing the di-muon process e^(+)e^(-)→(γISR=FSR)μ^(+)μ^(-),we measure the center-of-mass energies of the data samples with a precision of 0.6 *** a run-by-run study,we find that the center-of-mass energies were stable throughout most of the data-collection period.

关键词： center-of-mass energy e^(+)e^(-) annihilation BESIII

measurement of the integrated Luminosities of cross-section scan data samples around theψ(3770)mass region

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chinese Physics c 2018年第6期42卷 1-8页

作者： m. Ablikim m. N. Achasov S. Ahmed m. Albrecht m. Alekseev A. Amoroso F. F. An q. An Y. Bai O. Bakina R. Baldini Ferroli Y. Ban K. Begzsuren d. W. Bennett j. V. Bennett N. Berger m. Bertani d. Bettoni F. Bianchi E. Boger I. Boyko R. A. Briere h. cai x. cai O. cakir A. calcaterra G. F. cao S. A. cetin j. chai j. F. chang W. L. chang G. chelkov 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. chu G. cibinetto F. cossio h. a. dai, j. F. dai A. dbeyssi 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 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. Fioravanti m. Fritsch c. d. Fu q. Gao x. L. Gao Y. Gao, Y. G. Gao Z. Gao B. Garillon I. Garzia A. Gilman K. Goetzen L. Gong W. x. Gong W. Gradl m. Greco L. m. Gu m. h. Gu Y. T. Gu A. q. Guo L. B. Guo R. P. Guo Y. F. Guo A. Guskov Z. haddadi S. han x. q. hao F. A. harris Z. L. he x. O. he F. h. heinsius T. held Y. K. heng T. holtmann Z. L. hou h. m. hu j. F. gu T. hu Y. hu G. S. huang j. S. huang x. T. huang x. Z. huang Z. L. guang T. hussain W. Ikegami Andersson m Irshad 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. johansson A. julin N. Kalantar-Nayestanaki x. S. Kang m. Kavatsyuk B. c. Ke T. Khan A. Khoukaz P. Kiese R. Kliemt L. Koch O. B. Kolcu B. Kopf m. Kornicer m. Kuemmel m. Kuessner A. Kupsc m. Kurth W. Kiihn j. S. Lange m. Lara P. Larin L. Lavezzi S. Leiber h. Leithofi 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 huanhuan Liu huihui 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 Beihang University Beijing 100191 China Beijing Institute of Petroch.m.cal Technology Beijing 102617 China Boch.m.Ruhr-University D-44780 Bochum Germany carnegie mellon University Pittsburgh Pennsylvania 15213 USA central china Normal University Wuhan 430079 China china center of Advanced Science and Technology Beijing 100190 China cOmSATS Institute of Information Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of Nuclear Physics SB RAS （BINP） Novosibirsk 630090 Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 Darmstadt Germany Guangx. Normal University Guilin 541004 China Guangx. University Nanning 530004 China hangzhou Normal University Hangzhou 310036 China helmholtz Institute mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany henan Normal University Xinxiang 453007 China henan University of Science and Technology Luoyang 471003 China huangshan college Huangshan 245000 China hunan Normal University Changsha 410081 China hunan University Changsha 410082 China Indian Institute of Tec

To investigate the nature of the Ψ（3770） resonance and to measure the cross section for e^＋e^-→dd, a cross-section scan data sample, distributed among 41 center-of-mass energy points from 3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPcII collider in the year 2010. By analyzing the large angle Bhabha scattering events, we measure the integrated luminosity of the data sample at each center-of-mass energy point. The total integrated luminosity of the data sample is 76.16±0.04±0.61 pb^-1, where the first uncertainty is statistical and the second systematic.

关键词： Bhabha scattering events integrated luminosity BESⅢ

Future Physics Programme of BESⅢ

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chinese Physics c 2020年第4期44卷 I0001-I0004,1-102页

作者： m.Ablikim m.N.Achasov P.Adlarson S.Ahmed m.Albrecht m.Alekseev A.Amoroso F.F.An q.An Y.Bai O.Bakina R.Baldini Ferroli Y.Ban K.Begzsuren j.V.Bennett N.Berger m.Bertani d.Bettoni F.Bianchi j Biernat j.Bloms I.Boyko R.A.Briere L.calibbi h.cai x.cai A.calcaterra G.F.cao N.cao S.A.cetin j.chai j.F.chang W.L.chang j.charles G.chelkov chen G.chen h.S.chen j.c.chen m.L.chen S.j.chen Y.B.chen h.Y.cheng W.cheng G.cibinetto F.cossio x.F.cui h.L.dai j.P.dai x.c.dai A.dbeyssi d.dedovich Z.Y.deng A.denig denysenko m.destefanis S.descotes-Genon F.de mori Y.ding c.dong j.dong L.Y.dong m.Y.dong Z.L.dou S.x.du S.I.Eidelman j.Z.Fan j.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici c.q.Feng m.Fritsch c.d.Fu Y.Fu q.Gao x.L.Gao Y.Gao Y.Gao Y.G.Gao Z.Gao B.Garillon I.Garzia E.m.Gersabeck A.Gilman K.Goetzen L.Gong W.x.Gong W.Gradl m.Greco L.m.Gu m.h.Gu Y.T.Gu A.q.Guo F.K.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov S.han x.q.hao F.A.harris K.L.he F.h.heinsius T.held Y.K.heng Y.R.hou Z.L.hou h.m.hu j.F.hu T.hu Y.hu G.S.huang j.S.huang x.T.huang x.Z.huang Z.L.huang N.huesken T.hussain W.Ikegami Andersson W.Imoehl m.Irshad q.ji q.P.ji x.B.ji x.L.ji h.L.jiang x.S.jiang x.Y.jiang j.B.jiao Z.jiao d.P.jin S.jin Y.jin T.johansson N.Kalantar-Nayestanaki x.S.Kang R.Kappert m.Kavatsyuk B.c.Ke I.K.Keshk T.Khan A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf m.Kuemmel m.Kuessner A.Kupsc m.Kurth.m.G.Kurth W.Kuhn j.S.Lange P.Larin L.Lavezzi h.Leithoff T.Lenz c.Li cheng Li d.m.Li F.Li F.Y.Li G.Li h.B.Li h.j.Li j.c.Li j.W.Li Ke Li L.K.Li Lei Li P.L.Li P.R.Li q.Y.Li W.d.Li W.G.Li x.h.Li x.L.Li x.N.Li x.q.Li Z.B.Li h.Liang h.Liang Y.F.Liang Y.T.Liang G.R.Liao L.Z.Liao j.Libby c.x.Lin d.x.Lin Y.j.Lin B.Liu B.j.Liu c.x.Liu d.Liu d.Y.Liu F.h.Liu Fang Liu Feng Liu h.B.Liu h.m.Liu huanhuan Liu huihui Liu j.B.Liu j.Y.Liu K.Y.Liu Ke Liu q.Liu S.B.Liu T.Liu x.Liu x.Y.Liu Y.B.Liu Z.A.Liu Zhiq.ng Liu Y.F.Long x.c.lou h.j.Lu j.d.Lu j.G.Lu Y.Lu Y.P.Lu c.L.Luo m.x.Luo P.W.Luo T.Luo x.L.Luo S.Lusso x.R.Lyu F.c.ma h.L.ma L.L.ma m.m.ma q.m.ma x.N.ma x.x. Institute of high Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petroch.m.cal Technology Beijing 102617China Boch.m.Ruhr-University D-44780 BochumGermany carnegie mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China china center of Advanced Science and Technology Beijing 100190China cOmSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangx. Normal University Guilin 541004China Guangx. University Nanning 530004China hangzhou Normal University Hangzhou 310036China helmholtz Institute mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of Science and Technology Luoyang 471003China huangshan college Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Ferrara I-44122FerraraItaly Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia johannes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-cART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Shandong University Jinan 250100China Shanghai

There has recently been a dramatic renewal of interest in hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plethora of charmonium-like x.Z states at BESⅢ and B factories, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related x.1835) meson state at BESⅢ, as well as the threshold measurements of charm mesons and charm baryons. We present a detailed survey of the important topics in tau-charm physics and hadron physics that can be further ex.lored at BESⅢ during the remaining operation period of BEPcⅡ. This survey will help in the optimization of the data-taking plan over the coming years, and provides physics motivation for the possible upgrade of BEPcⅡ to higher luminosity.

关键词： meson hadron optimization

Amplitude analysis of the decays d^(0)→π^(+)π^(−)π^(+)π^(−)and d^(0)→π^(+)π^(−)π^(0)π^(0)

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chinese Physics c 2024年第8期48卷 6-33页

作者： m.Ablikim m.N.Achasov 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.Bianchi 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.chang W.L.chang G.R.che G.chelkov c.chen c.h.chen chao 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.choi x.chu 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.Fischer 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.han T.T.han x.q.hao F.A.harris K.K.he K.L.he F.h.heinsius c.h.heinz Y.K.heng c.h.rold T.holtmann P.c.h.ng G.Y.hou x.T.hou Y.R.hou Z.L.hou B.Y.hu h.m.hu j.F.hu T.hu Y.hu G.S.huang K.x.huang L.q.huang x.T.huang Y.P.huang T.hussain F.h\"olzken N.h\"usken N.in der Wiesche m.Irshad.j.jackson S.janchiv 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.j.ang 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.johansson S.Kabana N.Kalantar-Nayestanaki x.L.Kang x.S.Kang m.Kavatsyuk B.c.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf m.Kuessner x.Kui A.Kupsc W.K\"uhn j.j.Lane P.Larin L.Lavezzi T.T.Lei Z.h.Lei h.Leithoff 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 hui 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 Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Boch.m.Ruhr-University D-44780 BochumGermany Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia carnegie mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China central South University Changsha 410083China china center of Advanced Science and Technology Beijing 100190China china University of Geosciences Wuhan 430074China chung-Ang University Seoul06974Republic of Korea cOmSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangx. Normal University Guilin 541004China Guangx. University Nanning 530004China hangzhou Normal University Hangzhou 310036China hebei University Baoding 071002China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China henan University of Science and Technology Luoyang 471003China henan University of Technology Zhengzhou 450001China huangshan college Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati 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 Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the BESIII detector,a joint amplitude analysis is performed on the decays d^(0)→π^(+)π^(−)π^(+)π^(−)and d^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the 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 *** the obtained amplitude model,the 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.))%,*** branching 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 the binning strategy in measuring the strong phase parameters of d^(0)→4πwhen used to determine the cKm angleγ(ϕ_(3))via the B^(−)→dK^(−)decay.

关键词： BESIII d^(0)meson decays amplitude analysis cP-even fraction

measurement of integrated luminosities at BESⅢ for data samples at center-of-mass energies between 4.0 and 4.6 GeV

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chinese Physics c 2022年第11期46卷 53-63页

作者： m.Ablikim m.N.Achasov P.Adlarson S.Ahmed m.Albrecht R.Aliberti A.Amoroso m.R.An q.An x.h.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya d.Becker K.Begzsuren N.Berger m.Bertani d.Bettoni F.Bianchi j.Bloms 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.chang W.L.chang G.chelkov c.chen G.chen h.S.chen m.L.chen S.j.chen T.chen x.R.chen x.T.chen Y.B.chen Z.j.chen W.S.cheng x.chu G.cibinetto F.cossio j.j.cui h.L.dai j.P.dai A.dbeyssi R.Ede Boer d.dedovich Z.Y.deng A.denig I.denysenko m.destefanis F.de mori Y.ding j.dong L.Y.dong m.Y.dong x.dong S.x.du P.Egorov Y.L.Fan j.Fang S.S.Fang W.x.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici c.q.Feng j.h.Feng K Fischer m.Fritsch c.Fritzsch c.d.Fu h.Gao Y.N.Gao yang Gao S.Garbolino I.Garzia P.T.Ge c.Geng E.m.Gersabeck A Gilman K.Goetzen L.Gong W.x.Gong W.Gradl m.Greco m.h.Gu c.Y Guan A.q.Guo L.B.Guo R.P.Guo Y.P.Guo A.Guskov T.T.han W.Y.han x.q.hao F.A.harris K.K.he K.L.he F.h.heinsius c.h.heinz Y.K.heng c.h.rold m.h.m.elreich T.holtmann G.Y.hou Y.R.hou Z.L.hou h.m.hu j.F.hu T.hu Y.hu G.S.huang K.x.huang L.q.huang L.q.huang x.T.huang Y.P.huang Z.huang T.hussain N husken W.Imoehl m.Irshad.j.jackson S.jaeger S.janchiv q.ji q.P.ji x.B.ji x.L.ji Y.Y.ji Z.K.jia h.B.jiang S.S.jiang x.S.jiang Y.jiang j.B.jiao Z.jiao S.jin Y.jin m.q.jing T.johansson N.Kalantar-Nayestanaki x.S.Kang R.Kappert m.Kavatsyuk B.c.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf m.Kuemmel m.Kuessner A.Kupsc W.Kuhn j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi Z.h.Lei h.Leithoff m.Lellmann T.Lenz c.Li c.Li c.h.Li cheng Li d.m.Li F.Li G.Li h.Li h.Li h.B.Li h.j.Li h.N.Li j.q.Li j.S.Li j.W.Li Ke Li L.j Li L.K.Li Lei Li m.h.Li P.R.Li S.x.Li S.Y.Li T.Li W.d.Li W.G.Li x.h.Li x.L.Li x.aoyu Li Z.Y.Li h.Liang h.Liang h.Liang Y.F.Liang Y.T.Liang G.R.Liao L.Z.Liao j.Libby A.Limphirat c.x.Lin d.x.Lin T.Lin B.j.Liu c.x.Liu d.Liu F.h.Liu Fang Liu Feng Liu G.m.Liu h.Liu h.m.Liu huanhuan Liu huihui Liu j.B.Liu j.L.Liu j.Y.Liu K.L Institute of high Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petroch.m.cal Technology Beijing 102617China Boch.m.Ruhr-University D-44780 BochumGermany carnegie mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China china center of Advanced Science and Technology Beijing 100190China cOmSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI helmholtzcentre for heavy Ion Research Gmbh D-64291 DarmstadtGermany Guangx. Normal University Guilin 541004China hangzhou Normal University Hangzhou 310036China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of Science and Technology Luoyang 471003China henan University of Technology Zhengzhou 450001China huangshan college Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati 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 Institute of modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia jilin University Changchun 130012China johannes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The integrated luminosities of data samples collected in the BESⅢ ex.eriment in 2016-2017 at centerof-mass energies between 4.19 and 4.28 GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering *** integrated luminosities of old datasets collected in 2010-2014 are updated by considering corrections related to detector performance,offsetting the effect of newly discovered readout errors in the electromagnetic calorimeter,which can haphazardly occur.

关键词： integrated luminosity e^(+)e^(-)annihilation Bhabha scattering