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Boosting High-Voltage Practical lithium Metal Batteries with Tailored Additives

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Nano-Micro letters 2024年第12期16卷 23-41页

作者： j.nhai You q.ong wang Runhong Wei li deng Yiyang hu li Niu j.ngkai wang Xiaomei z.eng j.nwei li yao z.ou j.n-Tao li College of.Energy Xiamen UniversityXiamen 361005People’s Republic of China Magnetism Key laboratory of.z.ej.ang Province College of Materials and ChemistryChina Jiliang UniversityHangzhou 310018People’s Republic of China laboratory f.r Sof. Matter and Biophysics Department of Physics and AstronomyKU Leuven3001 LeuvenBelgium State Key lab of.Physical Chemistry of.Solid Surf.ce College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005People’s Republic of China Department of.Chemical Engineering KU LeuvenCelestijnenlaan 200F3001 LeuvenBelgium College of.Chemistry and Chemical Engineering Northwest Normal UniversityLanzhou 730070GansuPeople’s Republic of China

The lithium(li)metal anode is widely regarded as an ideal anode material f.r high-energy-density ***,uncontrolled li dendrite growth of.en leads to unf.vorable interf.ces and low Coulombic ef.iciency(CE),limiting its broader ***,an ether-based electrolyte(termed f.N-182)is f.rmulated,exhibiting ultra-stable li metal anodes through the incorporation of.lif.I and liNO3 as dual *** synergistic ef.ect of.the dual salts f.cilitates the f.rmation of.a highly robust SEI f.lm with f.st li+transport ***,li||Cu half.cells exhibit an average CE reaching up to 99.56%.In particular,pouch cells eq.ipped with high-loading lithium cobalt oxide(lCO,3 mAh cm^(-2))cathodes,ultrathin li chips(25μm),and lean electrolytes(5 g Ah-1)demonstrate outstanding cycling perf.rmance,retaining 80%capacity af.er 125 *** address the gas issue in the cathode under high voltage,cathode additives 1,3,6-tricyanohexane is incorporated with f.N-182;the resulting high-voltage lCO||li(4.4 V)pouch cells can cycle steadily over 93 *** study demonstrates that,even with the use of.ether-based electrolytes,it is possible to simultaneously achieve signif.cant improvements in both high li utiliz.tion and electrolyte tolerance to high voltage by exploring appropriate f.nctional additives f.r both the cathode and anode.

关键词： li metal anode li dendrites liNO_(3) 1,3,6-tricyanohexane Pouch cells

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 f.rroli Y. Ban K. Begz.uren 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. Destef.nis 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. f.ng S. S. f.ng Y. f.ng R. f.rinelli l. f.va S. f.gan f. f.ldbauer G. f.lici C. q. f.ng E. f.oravanti M. f.itsch C. D. f. q. Gao X. l. Gao Y. Gao, Y. G. Gao z. Gao B. Garillon I. Garz.a A. Gilman K. Goetz.n 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. j. q. P. j. X. B. j. X. l. j. X. S. j.ang X. Y. j.ang j. B. j.ao z. j.ao D. P. j.n S. j.n Y. j.n T. j.hansson A. j.lin 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. lavez.i S. leiber H. leithof. 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 f.ng liu f.ng 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 Beij.ng Institute of.Petrochemical Technology Beijing 102617 China Bochum 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.Inf.rmation Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of.Nuclear Physics SB RAS （BINP） Novosibirsk 630090 Russia GSI Helmholtz.entre f.r Heavy Ion Research GmbH D-64291 Darmstadt Germany Guangxi Normal University Guilin 541004 China Guangxi University Nanning 530004 China Hangz.ou 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 f.r e^＋e^-→DD, a cross-section scan data sample, distributed among 41 center-of.mass energy points f.om 3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPCII collider in the year 2010. By analyz.ng 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 f.rst uncertainty is statistical and the second systematic.

关键词： Bhabha scattering events integrated luminosity BESⅢ

STCf.conceptual design report (Volume 1): Physics & detector

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f.ontiers 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.Druz.inin D.S.Du Y.j.Du z.G.Du l.M.Duan D.Epif.nov Y.l.f.n S.S.f.ng z.j.f.ng G.f.dotovich C.q.f.ng X.f.ng Y.T.f.ng j.l.f. j.Gao Y.N.Gao P.S.Ge C.q.Geng l.S.Geng A.Gilman l.Gong T.Gong B.Gou W.Gradl j.l.Gu A.Guevara l.C.Gui A.q.Guo f.K.Guo j.C.Guo j.Guo Y.P.Guo z.H.Guo A.Guskov K.l.Han l.Han M.Han X.q.Hao j.B.He S.q.He X.G.He Y.l.He z.B.He z.X.Heng B.l.Hou T.j.Hou Y.R.Hou C.Y.hu H.M.hu K.hu R.j.hu W.H.hu X.H.hu Y.C.hu j.hua G.S.huang j.S.huang M.huang q.Y.huang W.q.huang X.T.huang X.j.huang Y.B.huang Y.S.huang N.Hüsken V.Ivanov q.P.j. j.j.j.a S.j.a z.K.j.a H.B.j.ang j.j.ang S.z.j.ang j.B.j.ao z.j.ao H.j.j.ng X.l.Kang X.S.Kang B.C.Ke M.Kenz.e A.Khoukaz.I.Koop E.Kravchenko A.Kuz.in 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.l. 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.l.u S.B.liu T.liu X.liu Y.W.liu Y.liu Y.l.liu z.q.l.u 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.Nef.diev Y.Nef.dov 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.q.u 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 f.dérale de lausanne(EPf.) LausanneSwitzerland f.dan University Shanghai 200433China Goethe University f.ankf.rt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangz.ou Institute f.r Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hef.i 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 f.cilities 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 j.lin University Changch

The superτ-charm f.cility(STCf.is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of.mass energy range f.om 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 f.ctor of.100 larger than that of.the presentτ-charm f.ctory—the BEPCII,providing a uniq.e platf.rm f.r exploring the asymmetry of.matter-antimatter(charge-parity violation),in-depth studies of.the internal structure of.hadrons and the nature of.non-perturbative strong interactions,as well as searching f.r exotic hadrons and physics beyond the Standard *** STCf.proj.ct in China is under development with an extensive R&D *** document presents the physics opportunities at the STCf.describes conceptual designs of.the STCf.detector system,and discusses f.ture plans f.r detector R&D and physics case studies.

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

Geometrical reconstruction of.f.uorescence events observed by the lHAASO experiment

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Chinese Physics C 2021年第4期45卷 416-425页

作者： f.Aharonian q.An Axikegu l.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.j.Bi Y.j.Bi H.Cai j.T.Cai z.Cao z.Cao j.Chang j.f.Chang X.C.Chang B.M.Chen j.Chen l.Chen l.Chen l.Chen M.j.Chen M.l.Chen q.H.Chen S.H.Chen S.z.Chen T.l.Chen X.l.Chen Y.Chen N.Cheng Y.D.Cheng S.W.Cui X.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danz.ngluobu D.della Volpe B.DEtorre Piaz.oli X.j.Dong j.H.f.n Y.z.f.n z.X.f.n j.f.ng j.f.ng C.f.f.ng l.f.ng S.H.f.ng Y.l.f.ng B.Gao C.D.Gao q.Gao W.Gao M.M.Ge l.S.Geng G.H.Gong q.B.Gou M.H.Gu j.G.Guo X.l.Guo Y.q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He j.C.He S.l.He X.B.He Y.He M.Heller Y.K.Hor C.Hou X.Hou H.B.hu S.hu S.C.hu X.j.hu D.H.huang q.l.huang W.H.huang X.T.huang z.C.huang f.j. X.l.j. H.Y.j.a K.j.ang z.j.j.ang C.j.n D.Kuleshov K.levochkin B.B.li C.li C.li f.li H.B.li H.C.li H.Y.li j.li K.li W.l.li X.li X.li X.R.li Y.li Y.z.li z.li z.li E.W.liang Y.f.liang S.j.lin B.liu C.liu D.liu H.liu H.D.liu j.liu j.l.liu j.l.liu j.S.liu j.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.N.liu z.X.liu W.j.long R.lu H.K.lv B.q.Ma l.l.Ma X.H.Ma j.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y..Pang P.Pattarakij.anich z.Y.Pei M.Y.q. D.Ruf.olo V.Rulev A.Saiz.l.Shao O.Shchegolev X.D.Sheng j.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov q.N.Sun X.N.Sun z.B.Sun P.H.T.Tam z.B.Tang W.W.Tian B.D.wang C.wang H.wang H.G.wang j.C.wang j.S.wang l.P.wang l.Y.wang R.N.wang W.wang W.wang X.G.wang X.j.wang X.Y.wang Y.D.wang Y.j.wang Y.P.wang z.wang z.wang z.H.wang z.X.wang D.M.Wei j.j.Wei Y.j.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.X.Wu X.f.Wu S.q.Xi j.Xia j.j.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.l.Xin Y.Xing D.l.Xu R.X.Xu l.Xue D.H.Yan C.W.Yang f.f.Yang j.Y.Yang l.l.Yang M.j.Yang R.z.Yang S.B.Yang Y.H.yao z.G.yao Y.M.Ye l.q.Yin N.Yin X.H.You z.Y.You Y.H.Yu q.Yuan H.D.z.ng T.X.z.ng W.z.ng z.K.z.ng M.z.a X.X.z.ai B.B.z.ang H.M.z.ang H.Y.z.ang j.l.z.ang j.W.z.ang l.z.ang l.z.ang l.X.z.ang P.f.z.ang P.f.z.ang R.z.ang S.R.z.ang S.S.z.ang X.z.ang X.P.z.ang Y.z.ang Y.z.ang Y.f.z.ang Y.l.z.ang B.z.ao j.z.ao l.z.ao l.z.z.ao S.P.z.ao f.z.eng Y.z.eng B.z.ou H.z.ou j.N.z.ou P Key laboratory of.Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of.Chinese Academy of.Sciences Beijing 100049China TIANf. Cosmic Ray Research Center ChengduSichuanChina State Key laboratory of.Paricle Detection and Electronics China University of.Science and Technology of.China HefeiAnhui 230026China Department of.Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of.Physics Peking UniversityBeijing 100871China Center f.r Astrophysics Guangzhou UniversityGuangzhouGuangdong 510006China School of.Physics and Astronomy&School of.Physics(Guangz.ou) Sun Yat-sen UniversityZhuhaiGuangdong 519000China School of.Physical Science and Technology Guangxi UniversityNanningGuangxi 530004China Hebei Normal University ShijiazhuangHebei 050024China School of.Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China School of.Astronomy and Space Science Nanjing UniversityNanjingJiangsu 210023China Key laboratory of.Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Institute of.f.ontier and Interdisciplinary Science Shandong UniversityQingdaoShandong 266237China Key laboratory f.r Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao lee Institute&School of.Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of.Physical Science and Technology Southwest Jiaotong UniversityChengduSichuan 610031China College of.Physics Sichuan UniversityChengduSichuan 610065China Key laboratory of.Cosmic Rays(Tibet University) Ministry of EducationLhasaTibet 850000China School of.physics and technology Wuhan UniversityWuhanHubei 430072Ch

The lHAASO-Wf.TA experiment,which aims to observe cosmic rays in the sub-EeV range using the f.uorescence techniq.e,uses a new generation of.high-perf.rmance *** ensure that the experiment has ex-cellent detection capability associated with the measurement of.the energy spectrum,the primary composition of.cosmic rays,and so on,an accurate geometrical reconstruction of.air-shower events is *** paper de-scribes the development and testing of.geometrical reconstruction f.r stereo viewed events using the Wf.TA(Wide f.eld of.view Cherenkov/f.uorescence Telescope Array)*** approaches,which take f.ll advantage of.he Wf.TA *** *** is the stereo-angular method,which uses the pointing of.triggered SiPMs in the shower traj.ctory,and the other is the stereo-timing method,which uses the triggering time of.the f.red *** results show that both methods have good geometrical resolution:the resolution of.the stereo-timing method is slightly better than the stereo-angular method because the resolution of.the latter is slightly limited by the shower track length.

关键词： cosmic ray f.uorescence telescope stereo observation geometrical reconstruction

Observation of.the Crab Nebula with lHAASO-KM2A−a perf.rmance study

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Chinese Physics C 2021年第2期45卷 518-530页

作者： f.Aharonian q.An Axikegu l.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.j.Bi Y.j.Bi H.Cai j.T.Cai z.Cao j.Chang j.f.Chang X.C.Chang B.M.Chen j.Chen l.Chen M.j.Chen M.l.Chen q.H.Chen S.H.Chen S.z.Chen T.l.Chen X.l.Chen Y.Chen N.Cheng Y.D.Cheng S.W.Cui X.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai D.della Volpe B.D'Ettorre Piaz.oli X.j.Dong j.H.f.n Y.z.f.n z.X.f.n j.f.ng K.f.ng C.f.f.ng l.f.ng S.H.f.ng Y.l.f.ng B.Gao C.D.Gao q.Gao W.Gao M.M.Ge l.S.Geng G.H.Gong q.B.Gou M.H.Gu j.G.Guo X.l.Guo Y.q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He j.C.He S.l.He X.B.He Y.He M.Heller Y.K.Hor C.Hou X.Hou H.B.hu S.hu S.C.hu X.j.hu D.H.huang q.l.huang W.H.huang X.T.huang z.C.huang f.j. X.l.j. H.Y.j.a K.j.ang z.j.j.ang C.j.n D.Kuleshov K.levochkin B.B.li C.li f.li H.B.li H.C.li H.Y.li j.li K.li W.l.li X.li X.R.li Y.li Y.z.li z.li E.W.liang Y.f.liang S.j.lin B.liu C.liu D.liu H.liu H.D.liu j.liu j.l.liu j.S.liu j.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.N.liu z.X.liu W.j.long R.lu H.K.lv B.q.Ma l.l.Ma X.H.Ma j.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y.Pang P.Pattarakij.anich z.Y.Pei M.Y.q. D.Ruf.olo V.Rulev A.Sáiz.l.Shao O.Shchegolev X.D.Sheng j.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov q.N.Sun X.N.Sun z.B.Sun P.H.T.Tam z.B.Tang W.W.Tian B.D.wang C.wang H.wang H.G.wang j.C.wang j.S.wang l.P.wang l.Y.wang R.N.wang W.wang X.G.wang X.j.wang X.Y.wang Y.D.wang Y.j.wang Y.P.wang z.wang z.H.wang z.X.wang D.M.Wei j.j.Wei Y.j.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.X.Wu X.f.Wu S.q.Xi j.Xia j.j.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.l.Xin Y.Xing D.l.Xu R.X.Xu l.Xue D.H.Yan C.W.Yang f.f.Yang j.Y.Yang l.l.Yang M.j.Yang R.z.Yang S.B.Yang Y.H.yao z.G.yao Y.M.Ye l.q.Yin N.Yin X.H.You z.Y.You Y.H.Yu q.Yuan H.D.z.ng T.X.z.ng W.z.ng z.K.z.ng M.z.a X.X.z.ai B.B.z.ang H.M.z.ang H.Y.z.ang j.l.z.ang j.W.z.ang l.z.ang l.X.z.ang P.f.z.ang P.P.z.ang R.z.ang S.R.z.ang S.S.z.ang X.z.ang X.P.z.ang Y.z.ang Y.f.z.ang Y.l.z.ang B.z.ao j.z.ao l.z.ao l.z.z.ao S.P.z.ao f.z.eng Y.z.eng B.z.ou H.z.ou j.N.z.ou P.z.ou R.z.ou X.X.z.ou C.G.z.u f.R.z.u H.z.u K.j.z.u X.z.o Key laboratory of.Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina University of.Chinese Academy of.Sciences 100049 BeijingChina TIANf. Cosmic Ray Research Center ChengduSichuanChina State Key laboratory of.Particle Detection and Electronics China University of.Science and Technology of.China 230026 HefeiAnhuiChina Department of.Engineering Physics Tsinghua University100084 BeijingChina National Astronomical Observatories Chinese Academy of Sciences100101 BeijingChina National Space Science Center Chinese Academy of Sciences100190 BeijingChina School of.Physics Peking University100871 BeijingChina Center f.r Astrophysics Guangzhou University510006 GuangzhouGuangdongChina School of.Physics and Astronomy&School of.Physics(Guangz.ou) Sun Yat-sen University519000 ZhuhaiGuangdongChina School of.Physical Science and Technology Guangxi University530004 NanningGuangxiChina Hebei Normal University 050024 ShijiazhuangHebeiChina School of.Physics and Microelectronics Zhengzhou University450001 ZhengzhouHenanChina School of.Astronomy and Space Science Nanjing University210023 NanjingJiangsuChina Key laboratory of.Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210023 NanjingJiangsuChina Institute of.f.ontier and Interdisciplinary Science Shandong University266237 QingdaoShandongChina Key laboratory f.r Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of Sciences200030 ShanghaiChina Tsung-Dao lee Institute&School of.Physics and Astronomy Shanghai Jiao Tong University200240 ShanghaiChina School of.Physical Science and Technology&School of.Inf.rmation Science and Technology Southwest Jiaotong University610031 ChengduSichuanChina College of.Physics Sichuan University610065 ChengduSichuanChina Key laboratory of.Cosmic Rays(Tibet University) Ministry of Education850000 LhasaTibetChina School of.Physics and Tec

A sub-array of.the large High Altitude Air Shower Observatory(lHAASO),KM2A is mainly designed to observe a large f.action of.the northern sky to hunt f.r γ-ray sources at energies above 10 *** though the detector construction is still underway,half.of.the KM2A array has been operating stably since the end of.*** this paper,we present the KM2A data analysis pipeline and the f.rst observation of.the Crab Nebula,a standard candle in very high energy γ-ray *** detect γ-ray signals f.om the Crab Nebula in both energy ranges of.10-100 TeV and>100 TeV with high signif.cance,by analyz.ng the KM2A data of.136 live days between December 2019 and May *** the observations,we test the detector perf.rmance,including angular resolution,pointing accuracy and cosmic-ray background rej.ction *** energy spectrum of.the Crab Nebula in the energy range 10-250 TeV f.ts well with a single power-law f.nction dN/dE=(1.13±0.05stat±0.08sys)×10^(-14).(E/20 TeV)-309±0.06stat±0.02syscm^(-2) s^(-1) TeV^(-1).It is consistent with previous measurements by other *** opens a new window of.γ-ray astronomy above 0.1 PeV through which new ultrahigh-energy γ-ray phenomena,such as cosmic PeVatrons,might be discovered.

关键词： γ-ray Crab Nebula extensive air showers cosmic rays

Search f.r electron-antineutrinos associated with gravitational-wave events GW150914,GW151012,GW151226,GW170104,GW170608,GW170814,and GW170817 at Daya Bay

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Chinese Physics C 2021年第5期45卷 190-201页

作者： f.P.An A.B.Balantekin H.R.Band M.Bishai S.Blyth G.f.Cao j.Cao j.f.Chang Y.Chang H.S.Chen S.M.Chen Y.Chen Y.X.Chen j.Cheng z.K.Cheng j.j.Cherwinka M.C.Chu j.P.Cummings O.Dalager f.S.deng Y.Y.Ding M.V.Diwan T.Dohnal j.Dove M.Dvorak D.A.Dwyer j.P.Gallo M.Gonchar G.H.Gong H.Gong W.q.Gu j.Y.Guo l.Guo X.H.Guo Y.H.Guo z.Guo R.W.Hackenburg S.Hans M.He K.M.Heeger Y.K.Heng A.Higuera Y.K.Hor Y.B.Hsiung B.z.hu j.R.hu T.hu z.j.hu H.X.huang X.T.huang Y.B.huang P.huber D.E.j.f.e K.l.j.n X.l.j. X.P.j. R.A.j.hnson D.j.nes l.Kang S.H.Kettell S.Kohn M.Kramer T.j.langf.rd j.lee j.H.C.lee R.T.lei R.leitner j.K.C.leung f.li j.j.li q.j.li S.li S.C.li W.D.li X.N.li X.q.l. Y.f.li z.B.li H.liang C.j.lin G.l.lin S.lin j.j.ling j.M.link l.littenberg B.R.littlej.hn j.C.liu j.l.liu C.lu H.q.l. j.S.lu K.B.luk X.B.Ma X.Y.Ma Y.q.Ma C.Marshall D.A.Martinez.Caicedo K.T.MeDonald R.D.McKeown Y.Meng j.Napolitano D.Naumov E.Naumova j.P.Ochoa-Ricoux A.OIshevskiy H.-R.Pan j.Park S.Patton j.C.Peng C.S.j.Pun f.z.q. M.q. X.q.an N.Raper j.Ren C.Morales Reveco R.Rosero B.Roskovec X.C.Ruan H.Steiner j.l.Sun T.Tmej.K.Treskov W.-H.Tse C.E.Tull B.Viren V.Vorobel C.H.wang j.wang M.wang N.Y.wang R.G.wang W.wang W.wang X.wang Y.wang Y.f.wang z.wang z.wang z.M.wang H.Y.Wei l.H.Wei l.j.Wen K.Whisnant C.G.White H.l.H.Wong E.Worcester D.R.Wu f.l.Wu q.Wu W.j.Wu D.M.Xia z.q.Xie z.z.Xing j.l.Xu T.Xu T.Xue C.G.Yang l.Yang Y.z.Yang H.f.yao M.Ye M.Yeh B.l.Young H.z.Yu z.Y.Yu B.B.Yue S.z.ng Y.z.ng l.z.an C.z.ang f.Y.z.ang H.H.z.ang j.W.z.ang q.M.z.ang X.T.z.ang Y.M.z.ang Y.X.z.ang Y.Y.z.ang z.j.z.ang z.P.z.ang z.Y.z.ang j.z.ao l.z.ou H.l.z.uang j.H.z.u Instiute of.Modern Physics East China University of Science and TechnologyShanghai 200237 University of.Wisconsin MadisonWisconsin 53706 Wright laboratory and Department of.Physics Yale UniversityNew HavenConnecticut 06520 Brookhaven National laboratory UptonNew York 11973 Department of.Physics National Taiwan UniversityTaipei Institute of.High Energy Physics Beijing 100049 National United University Miao-Li Department of.Engineering Physics Tsinghua UniversityBejing 100084 Shenz.en University Shenzhen 518060 Sun Yat-Sen(z.ongshan)University Guangzhou North China Electric Power University Bejjing 102206 Chinese University of.Hong Kong Hong Kong 999077 Siena College LoudonvilleNew York 12211 Department of.Physics and Astronomy University of CaliforniaIrvineCaliformia 92697 University of.Science and Technology of.China Hefei 230026 Charles University Faculty of Mathematics and PhysicsPrague Department of.Physics University of llinois at Urbana-ChampaignUrbanaIlinois 61801 lawrence Berkeley National laboratory BerkeleyCalifornia 94720 Department of.Physics Illinois Institute of TechnologyChicagoIllinois 60616 j.int Institute f.r Nuclear Research DubnaMoscow Region Beij.ng Normal University Beijing 100875 Department of.Nuclear Science and Technology School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049 Department of.Physics University of HoustonHoustonTexas 77204 China Institute of.Atomic Energy Beijing 102413 Shandong University Jinan 250100 Guangxi University Nanning 530004 Center f.r Neutrino Physics Virginia TechBlacksburgVirginia 24061 Institute of.Physics National Chiao-Tung UniversityHsinchu Department of.Physics University of CincinnatiCincinnatiOhio 45221 Department of.Physies Collge of Science and TechnologyTemple UniversityPhiladelphiaPennsylvania 19122 Dongguan University of.Technology Dongguan 523808 Department of.Physics University of CaliforniaBerkeleyCalifornia 94720 Department of.Physics The University of Hong KongPokfulamHong Kong 999077 School

The establishment of.a possible connection between neutrino emission and gravitational-wave(GW)bursts is important to our understanding of.the physical processes that occur when black holes or neutron stars *** the Daya Bay experiment,using the data collected f.om December 2011 to August 2017,a search was per-f.rmed f.r electron-antineutrino signals that coincided with detected GW events,including GW150914,GW151012,GW151226,GW170104,GW170608,GW 170814,and GW *** used three time windows of.10,±500,and±1000 s relative to the occurrence of.the GW events and a neutrino energy range of.1.8 to 100 MeV to search f.r correlated neutrino *** detected electron-antineutrino candidates were consistent with the expected background rates f.r all the three time *** monochromatic spectra,we f.und upper limits(90%conf.dence level)of.the electron-antineutrino f.uence of.1.13-2.44)×10^(11)cm^(-2)at 5 MeV to 8.0×10^(7)cm^(-2)at 100 MeV f.r the three time w *** the assumption of.a f.rmi-Dirac spectrum,the upper limits were f.und to be(5.4-7.0)×10^(9)cm^(2)f.r the three time windows.

关键词： grav itational waves electron-antineutrinos f.uence upper limit

f.ture 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 f.rroli Y.Ban K.Begz.uren 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.Destef.nis 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.f.n j.f.ng S.S.f.ng Y.f.ng R.f.rinelli l.f.va f.f.ldbauer G.f.lici C.q.f.ng M.f.itsch C.D.f. Y.f. q.Gao X.l.Gao Y.Gao Y.Gao Y.G.Gao z.Gao B.Garillon I.Garz.a E.M.Gersabeck A.Gilman K.Goetz.n 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.j. q.P.j. X.B.j. X.l.j. H.l.j.ang X.S.j.ang X.Y.j.ang j.B.j.ao z.j.ao D.P.j.n S.j.n Y.j.n T.j.hansson 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.lavez.i H.leithof. 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.l. 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 f.ng liu f.ng liu H.B.liu H.M.liu huanhuan liu huihui liu j.B.liu j.Y.liu K.Y.liu Ke liu q.l.u S.B.liu T.liu X.liu X.Y.liu Y.B.liu z.A.liu z.iq.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 Beij.ng Institute of.Petrochemical Technology Beijing 102617China Bochum 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 f.dan University Shanghai 200443China G.I.Budker Institute of.Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtz.entre f.r Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangz.ou 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 INf. laboratori Naz.onali di f.ascati I-00044FrascatiItaly INf. Sez.one di f.rrara I-44122FerraraItaly Institute of.Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia j.hannes Gutenberg University of.Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany j.int Institute f.r Nuclear Research 141980 DubnaMoscow regionRussia j.stus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands lanz.ou University Lanzhou 730000China liaoning University Shenyang 110036China Nanj.ng Normal University Nanjing 210023China Nanj.ng 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 XYz.states at BESⅢ and B f.ctories, 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 f.rther explored at BESⅢ during the remaining operation period of.BEPCⅡ. This survey will help in the optimiz.tion of.the data-taking plan over the coming years, and provides physics motivation f.r the possible upgrade of.BEPCⅡ to higher luminosity.

关键词： meson hadron optimiz.tion

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 f.rroli I.Balossino Y.Ban K.Begz.uren 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.Destef.nis f.De Mori Y.Ding C.Dong j.Dong l.Y.Dong M.Y.Dong X.Dong S.X.Du Y.l.f.n j.f.ng S.S.f.ng Y.f.ng R.f.rinelli l.f.va f.f.ldbauer G.f.lici C.q.f.ng j.H.f.ng M.f.itsch C.D.f. Y.Gao Y.Gao Y.Gao Y.G.Gao I.Garz.a P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetz.n 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.Herold M.Himmelreich 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.j.eger S.j.nchiv q.j. q.P.j. X.B.j. X.l.j. Y.Y.j. H.B.j.ang X.S.j.ang j.B.j.ao z.j.ao S.j.n Y.j.n M.q.j.ng T.j.hansson 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.lavez.i z.H.lei H.leithof. 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.l. j.S.li Ke li l.K.li lei li P.R.li S.Y.li W.D.li W.G.li X.H.li X.l.li Xiaoyu li z.Y.li H.liang H.liang H.liang Y.f.liang Y.T.liang G.R.liao l. z. liao j.libby C.X.lin B.j.liu C.X.liu D.liu f.H.liu f.ng liu f.ng 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.l.u q.l.u S.B.liu Shuai liu T.liu W.M.liu X.liu Y.liu Y.B.liu z.A.liu z.q.l.u 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 Beij.ng Institute of.Petrochemical Technology Beijing 102617China Bochum 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 f.dan University Shanghai 200443China G.I.Budker Institute of.Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtz.entre f.r Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangz.ou 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 INf. laboratori Naz.onali di f.ascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INf. laboratori Naz.onali di f.ascati INFN Sezione di PerugiaI-06100PerugiaItaly INf. laboratori Naz.onali di f.ascati University of PerugiaI-06100PerugiaItaly INf. Sez.one di f.rrara INFN Sezione di FerraraI-44122FerraraItaly INf. Sez.one di f.rrara University of FerraraI-44122FerraraItaly 25Institute of Modern PhysicsLanzhou 730000China Institute of.Modern Physics Lanzhou 730000China Institute of.Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia j.lin University Changchun 130012China j.hannes Gutenberg University of.Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany j.int Institute f.r Nuclear Research 141980 DubnaMoscow regionRussia j.stus-liebig-Universitaet Giessen II.Physikali

During the 2016-17 and 2018-19 running periods,the BESIII experiment collected 7.5 f. of.e^(+)e^(-)collision data at center-of.mass energies ranging f.om 4.13 to 4.44 *** data samples are primarily used f.r the study of.excited charmonium and charmoniumlike *** analyz.ng the di-muon process e^(+)e^(-)→(γISR=f.R)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 f.nd 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

Study of.BESIII trigger ef.iciencies 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 f.rroli I.Balossino Y.Ban K.Begz.uren 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.Destef.nis f.De Mori Y.Ding C.Dong j.Dong l.Y.Dong M.Y.Dong X.Dong S.X.Du Y.l.f.n j.f.ng S.S.f.ng Y.f.ng R.f.rinelli l.f.va f.f.ldbauer G.f.lici C.q.f.ng j.H.f.ng M.f.itsch C.D.f. Y.Gao Y.Gao Y.Gao Y.G.Gao I.Garz.a P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetz.n 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.Herold M.Himmelreich 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.j.eger S.j.nchiv q.j. q.P.j. X.B.j. X.l.j. H.B.j.ang X.S.j.ang j.B.j.ao z.j.ao S.j.n Y.j.n T.j.hansson 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.lavez.i z.H.lei H.leithof. 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.l. 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 f.ng liu f.ng 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.l.u q.l.u S.B.liu Shuai liu T.liu W.M.liu X.liu Y.liu Y.B.liu z.A.liu z.q.l.u 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 Beij.ng Institute of.Petrochemical Technology Beijing 102617China Bochum 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 f.dan University Shanghai 200443China GIBudker Institute of.Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtz.entre f.r Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangz.ou 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)INf. laboratori Naz.onali di f.ascati I-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly (A)INf. Sez.one di f.rrara I-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Institute of.Modern Physics Lanzhou 730000China Institute of.Physics and Technology Peace Ave54BUlaanbaatar 13330Mongolia j.lin University Changchun 130012China j.hannes Gutenberg University of.Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany j.int Institute f.r Nuclear Research 141980 DubnaMoscow regionRussia j.stus-liebig-Universitaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands lanz.ou University Lanzhou 730000China liaoning Normal Unive

Using a dedicated data sample taken in 2018 on the j.ψpeak,we perf.rm a detailed study of.the trigger ef.iciencies of.the BESIII *** ef.iciencies are determined f.om three representative physics processes,namely Bhabha scattering,dimuon production and generic hadronic events with charged *** combined ef.iciency of.all active triggers approaches 100%in most cases,with uncertainties small enough not to af.ect most physics analyses.

关键词： BESIII trigger ef.iciency Bhabha dimuon hadronic events