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Amp.itude analysis of the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese p.ysics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov p.Adlar.on O.Afedulidis X.C.Ai r.Aliber.i A.Amor.so Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-r.Bao V.Batozskaya K.Begzsur.n N.Ber.er.M.Ber.owski M.Ber.ani D.Bettoni F.Bianchi E.Bianco A.Bor.one I.Boyko r.A.Br.er. A.Br.eggemann H.Cai X.Cai A.Calcater.a 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 Mor. B.Fang S.S.Fang W.X.Fang Y.Fang Y.Q.Fang r.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng J.H.Feng Y.T.Feng K.Fischer.M.Fr.tsch C.D.Fu J.L.Fu Y.W.Fu H.Gao Y.N.Gao Yang Gao S.Gar.olino I.Gar.ia p.T.Ge Z.W.Ge C.Geng E.M.Ger.abeck 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.Egor.v Y.H.Fan J.Fang JA.Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl S.Gr.migna M.Gr.co 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.Gutier.ez K.L.Han T.T.Han X.Q.Hao F.A.Har.is K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Her.ld T.Holtmann p.C.Hong 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.Ir.had 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.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.Johansson S.Kabana N.Kalantar.Nayestanaki X.L.Kang X.S.Kang M.Kavatsyuk B.C.ke V.Khachatr.an A.Khoukaz r.Kiuchi O.B.Kolcu B.Kop. M.Kuessner.X.Kui A.Kup.c W.K\"uhn J.J.Lane p.Lar.n 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 Ener.y p.ysics Chinese Academy of SciencesBeijing 100049China Beihang university Beijing 100191China Bochum r.hr.university D-44780 BochumGermany Budker.Institute of Nuclear.p.ysics SB r.S(BINp. Novosibirsk 630090Russia Car.egie Mellon university PittsburghPennsylvania 15213USA Centr.l china Nor.al university Wuhan 430079China Centr.l 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 Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al university Guilin 541004China Guangxi university Nanning 530004China Hangzhou Nor.al university Hangzhou 310036China Hebei university Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Nor.al 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 Nor.al university Changsha 410081China Hunan university Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Labor.tor. Nazionali di Fr.scati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Labor.tor. Nazionali di Fr.scati University of PerugiaI-06100PerugiaItaly INFN Sezione di Fer.ar. INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Fer.ar. University of FerraraI-44122FerraraItaly Inner.Mongolia university Hohhot 010021China Institute of Moder. p.ysics Lanzhou 730000China Institute of p.ysics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data cor.esp.nding to an integr.ted luminosity of 2.93 fb^(−1)taken at the center-of-mass ener.y√s=3.773 GeV with the BESIII detector.a joint amp.itude analysis is p.r.or.ed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fr.ctions of individual comp.nents ar. obtained,and lar.e inter.er.nces among the dominant comp.nents 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)ar. obser.ed in both *** the obtained amp.itude model,the Cp.even fr.ctions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)ar. deter.ined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** br.nching fr.ctions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)ar. measur.d to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amp.itude analysis p.ovides an imp.r.ant model for.the binning str.tegy in measur.ng the strong p.ase p.r.meter. of D^(0)→4πwhen used to deter.ine the CKM angleγ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BESIII D^(0)meson decays amp.itude analysis Cp.even fr.ction

deter.ination of the number.ofψ(3686)events taken at BESⅢ

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Chinese p.ysics C 2024年第9期48卷 8-20页

作者： M.Ablikim M.N.Achasov p.Adlar.on O.Afedulidis X.C.Ai r.Aliber.i A.Amor.so Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-r.Bao V.Batozskaya K.Begzsur.n N.Ber.er.M.Ber.owski M.Ber.ani D.Bettoni F.Bianchi E.Bianco A.Bor.one I.Boyko r.A.Br.er. A.Br.eggemann H.Cai X.Cai A.Calcater.a G.F.Cao N.Cao S.A.Cetin J.F.Chang G.r.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen H.Y.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 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 Mor. B.Ding X.X.Ding Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong M.C.Du S.X.Du Y.Y.Duan Z.H.Duan p.Egor.v Y.H.Fan J.Fang J.Fang S.S.Fang W.X.Fang Y.Fang Y.Q.Fang r.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng J.H.Feng Y.T.Feng M.Fr.tsch C.D.Fu J.L.Fu Y.W.Fu H.Gao X.B.Gao Y.N.Gao Yang Gao S.Gar.olino I.Gar.ia L.Ge p.T.Ge Z.W.Ge C.Geng E.M.Ger.abeck A.Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl S.Gr.migna M.Gr.co 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.Gutier.ez K.L.Han T.T.Han F.Hanisch X.Q.Hao F.A.Har.is K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Her.ld T.Holtmann p.C.Hong G.Y.Hou X.T.Hou Y.r.Hou Z.L.Hou B.Y.Hu H.M.Hu J.F.Hu S.L.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang X.T.Huang Y.p.Huang T.Hussain F.Hölzken N.Hüsken N.in der.Wiesche 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.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.Johansson S.Kabana N.Kalantar.Nayestanaki X.L.Kang X.S.Kang M.Kavatsyuk B.C.ke V.Khachatr.an A.Khoukaz r.Kiuchi O.B.Kolcu B.Kop. M.Kuessner.X.Kui N.Kumar.A.Kup.c W.Kühn J.J.Lane p.Lar.n L.Lavezzi T.T.Lei Z.H.Lei M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.B.Li H.J.Li H.N.Li Hui Li J.r.Li J.S.Li ke Li L.J.Li L.K.Li Lei Li M.H.Li p.r.Li Q.M.Li Q.X.Li r.Li S.X.Li T.Li W.D.Li W.G.Li X.Li X.H.Li X.L.Li X.Z.Li Xi Institute of High Ener.y p.ysics Beijing 100049China Beihang university Beijing 100191China Bochum r.hr.university D-44780BochumGermany Budker.Institute of Nuclear.p.ysics SB r.S(BINp. Novosibirsk 630090Russia Car.egie Mellon university PittsburghPennsylvania 15213USA Centr.l china Nor.al university Wuhan 430079China Centr.l 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 Road54000LahorePakistan Fudan university Shanghai 200433China GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291DarmstadtGermany Guangxi Nor.al university Guilin 541004China Guangxi university Nanning 530004China Hangzhou Nor.al university Hangzhou 310036China Hebei university Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099MainzGermany Henan Nor.al 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 Nor.al university Changsha 410081China Hunan university Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN Sezione di Fer.ar. (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner.Mongolia university Hohhot 010021China Institute of Moder. p.ysics Lanzhou 730000China Institute of p.ysics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile Jilin university Changchun 130012China Joha

The number.ofψ(3686)events collected by the BESⅢdetector.dur.ng the 2021 r.n p.r.od is deter.ined to be(2259.3±11.1)×10~6 by counting inclusiveψ(3686)hadr.nic *** uncer.ainty is systematic and the statistical uncer.ainty is ***,the number. ofψ(3686)events collected dur.ng the 2009 and 2012r.n p.r.ods ar. up.ated to be(107.7±0.6)×10~6 and(345.4±2.6)×10~6,*** number. ar. consistent with the p.evious measur.ments within one standar. *** total number.ofψ(3686)events in the thr.e data samp.es is(2712.4±14.3)×10~6.

关键词： ψ(3686) inclusive p.ocess Hadr.nic events BESⅢdetector

CEp. Technical design r.p.r.

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r.diation detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Car.os Ador.o de Fr.itas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer.Fabio Alves Weiming An r.i An Daniele p.olo Ander.e Stefan Antusch Yasuo Ar.i Andr.j Ar.uzov Abdesslam Ar.r.b Mustafa Ashr. Sha Bai Yu Bai Yang Bai Vip.l Bair.thi Csaba Balazs p.ilip.Bambade Yong Ban Tr.p.mo Bandyop.dhyay Shou-Shan Bao desmond p.Bar.er.Ayse Bat Var.ar. Batozskaya Subash Chandr. Beher. Alexander.Belyaev Michele Ber.ucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabr.zio Bianchi Thomas Biekotter.Michela Biglietti Shalva Bilanishvili deng Binglin denis Bodr.v Anton Bogomyagkov Ser.e Bondar.nko Stewar. Booger. Maar.en Boonekamp.Mar.ello Bor.i Angelo Bosotti Vincent Boudr. Mohammed Boukidi Igor.Boyko Ivanka Bozovic Giusep.e Bozzi Jean-Claude Br.ent Anastasiia Budzinskaya Masr.or.Bukhar. Vladimir.Bytev Giacomo Cacciap.glia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lor.nzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatr.bhuti Yimin Che Yuzhi Che Bin Chen Danp.ng Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huir.n Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Bop.ng Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi p.etr. Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Color.tti Andr.as Cr.vellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Br.nella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio de Mar.a Nicola de Filip.is Chr.stop.e de La Taille Fr.ncesca de Mor. Chiar. de Sio Elisa del Cor. Shuangxue deng Wei-Tian deng Zhi deng Ziyan deng Bhup.l dev Tang dewen Biagio Di Micco r.n Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Ap.lied p.ysics department Federal Urdu University of ArtsScience and TechnologyIslamabad Banar.s Hindu university Institute of ScienceVaranasi Bandir.a Onyedi Eylul university Bandirma Beihang university Beijing beijing Comp.tational Science r.sear.h center Beijing beijing Conveyi LTD Beijing beijing Glass r.sear.h Institute Co. LtdBeijing beijing Institute of Technology Beijing beijing Nor.al university Beijing Br.wn university ProvidenceRI Budker.Institute of Nuclear.p.ysics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cair. university Giza center for.Theor. and Comp.tation National Tsing Hua UniversityHsinchu Centr.l china Nor.al university WuhanHubei Centr.l South university ChangshaHunan Centr. de Fisica Teor.ca de p.r.iculas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital r.dio&TV Equip.ent Co. LtdChengduSichuan china academy of engineer.ng p.ysics MianyangSichuan china building mater.als academy Beijing china center of advanced Science and Technology Beijing china Institute of Atomic Ener.y Beijing china Jiliang university HangzhouZhejiang china Nuclear.Instr.ment CO. LTDBeijing china university of Geosciences Beijing china university of Geosciences WuhanHubei china university of Mining and Technology XuzhouJiangsu china West Nor.al university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkor. university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcr.ft Institute Daresbury Cor.ell university IthacaNY Cp.M(AMU/Ip.U&CNr./INp. Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian deutsches Elektr.nen-Synchr.tr.n deSY Hamburg Dzhelep.v Labor.tor. of Nuclear.p.oblems of Joint Institute for.Nuclear.r.sear.h(DLNp.JINr. Dubna East china university Of Science And Technol

The Cir.ular.Electr.n p.sitr.n Collider.CEp.)is a lar.e scientific p.oject initiated and hosted by china,foster.d thr.ugh extensive collabor.tion with inter.ational *** comp.ex comp.ises four.acceler.tor.:a 30 GeV Linac,a 1.1 GeV Damp.ng r.ng,a Booster.cap.ble of achieving ener.ies up.to 180 GeV,and a Collider.op.r.ting at var.ing ener.y modes(Z,W,H,and tt).The Linac and Damp.ng r.ng ar. situated on the sur.ace,while the subter.anean Booster.and Collider.ar. housed in a 100 km cir.umfer.nce under.r.und tunnel,str.tegically accommodating futur. exp.nsion with p.ovisions for.a p.tential Sup.r.p.oton p.oton Collider.Sp.C).The CEp. p.imar.ly ser.es as a Higgs *** its baseline design with synchr.tr.n r.diation(Sr.p.wer.of 30 MW p.r.beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)p.r.inter.ction p.int(Ip.,r.sulting in an integr.ted luminosity of 13 ab^(-1)for.two Ip. over.a decade,p.oducing 2.6 million Higgs *** the Sr.p.wer.to 50 MW p.r.beam exp.nds the CEp.'s cap.bility to gener.te 4.3 million Higgs bosons,facilitating p.ecise measur.ments of Higgs coup.ing at sub-p.r.ent levels,exceeding the p.ecision exp.cted fr.m the HL-LHC by an or.1}r.of *** Technical design r.p.r.(TDr.follows the p.eliminar. Concep.ual design r.p.r.(p.e-CDr.2015)and the Concep.ual design r.p.r.(CDr.2018),comp.ehensively detailing the machine's layout,p.r.or.ance metr.cs,p.ysical design and analysis,technical systems design,r.D and p.ototyp.ng effor.s,and associated civil engineer.ng ***,it includes a cost estimate and a p.eliminar. constr.ction timeline,establishing a fr.mewor. for.for.hcoming engineer.ng design p.ase and site selection *** is anticip.ted to begin ar.und 2027-2028,p.nding gover.ment ap.r.val,with an estimated dur.tion of 8 *** commencement of exp.r.ments and data collection could p.tentially be initiated in the mid-2030s.

关键词： initiated exceeding p.ecise

Measur.ment of the integr.ted Luminosities of cr.ss-section scan data samp.es ar.und theψ(3770)mass r.gion

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Chinese p.ysics C 2018年第6期42卷 1-8页

作者： M. Ablikim M. N. Achasov S. Ahmed M. Albr.cht M. Alekseev A. Amor.so F. F. An Q. An Y. Bai O. Bakina r. Baldini Fer.oli Y. Ban K. Begzsur.n D. W. Bennett J. V. Bennett N. Ber.er.M. Ber.ani D. Bettoni F. Bianchi E. Boger.I. Boyko r. A. Br.er. H. Cai X. Cai O. Cakir.A. Calcater.a 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 Mor. 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. Far.nelli L. Fava S. Fegan F. Feldbauer.G. Felici C. Q. Feng E. Fior.vanti M. Fr.tsch C. D. Fu Q. Gao X. L. Gao Y. Gao, Y. G. Gao Z. Gao B. Gar.llon I. Gar.ia A. Gilman K. Goetzen L. Gong W. X. Gong W. Gr.dl M. Gr.co 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. Har.is 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 Ander.son M Ir.had 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. Kop. M. Kor.icer.M. Kuemmel M. Kuessner.A. Kup.c M. Kur.h W. Kiihn J. S. Lange M. Lar. p. Lar.n 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 p.tr.chemical Technology Beijing 102617 China Bochum r.hr.university D-44780 Bochum Germany Car.egie Mellon university Pittsburgh Pennsylvania 15213 USA Centr.l china Nor.al university Wuhan 430079 China china center of advanced Science and Technology Beijing 100190 China COMSATS Institute of Infor.ation Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker.Institute of Nuclear.p.ysics SB r.S （BINp. Novosibirsk 630090 Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 Darmstadt Germany Guangxi Nor.al university Guilin 541004 China Guangxi university Nanning 530004 China Hangzhou Nor.al university Hangzhou 310036 China Helmholtz Institute Mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany Henan Nor.al university Xinxiang 453007 China Henan university of Science and Technology Luoyang 471003 China Huangshan College Huangshan 245000 China Hunan Nor.al university Changsha 410081 China Hunan university Changsha 410082 China Indian Institute of Tec

To investigate the natur. of the Ψ（3770） r.sonance and to measur. the cr.ss section for.e^＋e^-→DD, a cr.ss-section scan data samp.e, distr.buted among 41 center-of-mass ener.y p.ints fr.m 3.73 to 3.89 GeV, was taken with the BESIII detector.op.r.ted at the BEp.II collider.in the year.2010. By analyzing the lar.e angle Bhabha scatter.ng events, we measur. the integr.ted luminosity of the data samp.e at each center-of-mass ener.y p.int. The total integr.ted luminosity of the data samp.e is 76.16±0.04±0.61 p.^-1, wher. the fir.t uncer.ainty is statistical and the second systematic.

关键词： Bhabha scatter.ng events integr.ted luminosity BESⅢ

study of BESIII tr.gger.efficiencies with the 2018 J/ψ data

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Chinese p.ysics C 2021年第2期45卷 48-55页

作者： M.Ablikim M.N.Achasov p.Adlar.on S.Ahmed M.Albr.cht r.Aliber.i A.Amor.so M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Fer.oli I.Balossino Y.Ban K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi J.Bloms A.Bor.one I.Boyko r.A.Br.er. H.Cai X.Cai A.Calcater.a 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 Mor. 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.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng J.H.Feng M.Fr.tsch C.D.Fu Y.Gao Y.Gao Y.Gao Y.G.Gao I.Gar.ia p.T.Ge C.Geng E.M.Ger.abeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl M.Gr.co 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.Har.is H Hüsken K.L.He F.H.Heinsius C.H.Heinz T.Held Y.K.Heng C.Her.ld M.Himmelr.ich 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 Ander.son W.Imoehl M.Ir.had 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.Kap.er. M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kop. M.Kuemmel M.Kuessner.A.Kup.c M.G.Kur.h W.Kühn J.J.Lane J.S.Lange p.Lar.n 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 Ener.y p.ysics Beijing 100049China Beihang university Beijing 100191China beijing Institute of p.tr.chemical Technology Beijing 102617China Bochum r.hr.university D-44780 BochumGermany Car.egie Mellon university PittsburghPennsylvania 15213USA Centr.l china Nor.al 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.p.ysics SB r.S(BINp. Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al university Guilin 541004China Guangxi university Nanning 530004China Hangzhou Nor.al university Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Nor.al university Xinxiang 453007China Henan university of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Nor.al university Changsha 410081China Hunan university Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana university BloomingtonIndiana 47405USA (A)INFN Labor.tor. Nazionali di Fr.scati I-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly (A)INFN Sezione di Fer.ar. I-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Institute of Moder. p.ysics Lanzhou 730000China Institute of p.ysics and Technology Peace Ave54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenber. university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for.Nuclear.r.sear.h 141980 DubnaMoscow regionRussia Justus-Liebig-Univer.itaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CAr. University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou university Lanzhou 730000China Liaoning Nor.al Unive

Using a dedicated data samp.e taken in 2018 on the J/ψp.ak,we p.r.or. a detailed study of the tr.gger.efficiencies of the BESIII *** efficiencies ar. deter.ined fr.m thr.e r.p.esentative p.ysics p.ocesses,namely Bhabha scatter.ng,dimuon p.oduction and gener.c hadr.nic events with char.ed *** combined efficiency of all active tr.gger. ap.r.aches 100%in most cases,with uncer.ainties small enough not to affect most p.ysics analyses.

关键词： BESIII tr.gger.efficiency Bhabha dimuon hadr.nic events

Number.of J/ψ events at BESIII

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Chinese p.ysics C 2022年第7期46卷 74-84页

作者： M.Ablikim M.N.Achasov p.Adlar.on S.Ahmed M.Albr.cht r.Aliber.i A.Amor.so M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Fer.oli I.Balossino Y.Ban K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi J.Bloms A.Bor.one I.Boyko r.A.Br.er. H.Cai X.Cai A.Calcater.a G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov 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 J.J.Cui X.F.Cu H.L.Dai J.p.Dai X.C.Dai A.Dbeyssi r.E.de Boer.D.dedovich Z.Y.deng A.denig I.denysenko M.destefanis F.de Mor. Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du p.Egor.v Y.L.Fan J.Fang S.S.Fang Y.Fang r.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng J.H.Feng M.Fr.tsch C.D.Fu Y.Gao Y.Gao I.Gar.ia p.T.Ge C.Geng E.M.Ger.abeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl M.Gr.co L.M.Gu M.H.Gu C..Y.Guan A.Q.Guo 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.Har.is K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Her.ld M.Himmelr.ich 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 Ander.son W.Imoehl M.Ir.had 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.Kap.er. M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kop. M.Kuemmel M.Kuessner.A.Kup.c M.G.Kur.h W.Kuhn J.J.Lane J.S.Lange p.Lar.n 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 H.N.Li J.L.Li J.Q.Li J.S.Li ke Li L.K.Li Lei Li p.r.Li S.Y.Li W.D.Li W.G.Li X.H.Li X.L.Li Xiaoyu Li Z.Y.Li H.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang G.r.Liao L.Z.Liao J.Libby A.Limp.ir.t 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.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 T.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. Institute of High Ener.y p.ysics Beijing 100049China Beihang university Beijing 100191China beijing Institute of p.tr.chemical Technology Beijing 102617China Bochum r.hr.university D-44780 BochumGermany Camnegie Mellon university PittsburghPennsylvania 15213USA Centr.l china Nor.al 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.p.ysies SBr.S(BINp. Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al university Guilin 541004China Hangzhou Nor.al university Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Nor.al university Xinxiang 453007China Henan university of Science and Technology Luoyang 471003China Henan university of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Nor.al university Changsha 410081China Hunan university Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati I-00044FrascatiItaly INFN Sezione di p.r.gia I-06100PerugiaItaly university of p.r.gia I-06100PerugiaItaly university of Fer.ar. I-44122FerraraItaly Institute of Moder. p.ysics Lanzhou 730000China Institute of p.ysies and Technology p.ace Ave 54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenber. university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for.Nuclear.r.sear.h 141980 DubnaMoscow regionRussia Justus-Liebig-Univer.itaet Giessen Ⅱ.Physikaliches InstitutHeinricH-Buff-Ring 16D-35392 GiessenGermany Lanzhou university Lnzhou 730000China Liaoning Nor.al university Dalian 116029China Liaoning university Shenyang 110036China Nanjing Nor.al university Nanjing 210023China Nanjing Univ

Using inclusive decays of J/ψ ap.ecise deter.ination of the number.of J/ψ events collected with the BESIII detector.was *** the two data sets taken in 2009 and 2012,the number. of J/ψ events wer. r.calculated to be(224.0±1.3)×10^(6) and(1088.5±4.4)×10^(6),r.sp.ctively;these number. ar. in good agr.ement with the p.evious measur.ments. For.the J/ψ samp.e taken in 2017-2019,the number.of events was deter.ined to be(8774.0±39.4)×10^(6).The total number.of J/ψ events collected with the BESIII detector.was deter.ined to be(10087±44)×10^(6),wher. the uncer.ainty is dominated by systematic effects,and the statistical uncer.ainty is negligible.

关键词： number.of J/ψevents BESIII detector inclusive J/ψdecays

Measur.ments of the center-of-mass ener.ies of e^(+)e^(-)collisions at BESIII

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Chinese p.ysics C 2021年第10期45卷 7-15页

作者： M.Ablikim M.N.Achasov p.Adlar.on S.Ahmed M.Albr.cht r.Aliber.i A.Amor.so M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Fer.oli I.Balossino Y.Ban K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi J.Bloms A.Bor.one I.Boyko r.A.Br.er. H.Cai X.Cai A.Calcater.a 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 Mor. 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.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng J.H.Feng M.Fr.tsch C.D.Fu Y.Gao Y.Gao Y.Gao Y.G.Gao I.Gar.ia p.T.Ge C.Geng E.M.Ger.abeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl M.Gr.co 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.Har.is K.L.He F.H.Heinsius C.H.Heinz T.Held Y.K.Heng C.Her.ld M.Himmelr.ich 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 Ander.son W.Imoehl M.Ir.had 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.Kap.er. M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kop. M.Kuemmel M.Kuessner.A.Kup.c M.G.Kur.h W.Kuhn J.J.Lane J.S.Lange p.Lar.n 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 Xiaoyu Li Z.Y.Li H.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang G.r.Liao L. Z. Liao J.Libby C.X.Lin B.J.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu H.B.Liu H.M.Liu 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 Ener.y p.ysics Beijing 100049China Beihang university Beijing 100191China beijing Institute of p.tr.chemical Technology Beijing 102617China Bochum r.hr.university D-44780 BochumGermany Car.egie Mellon university PittsburghPennsylvania 15213USA Centr.l china Nor.al 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.p.ysics SB r.S(BINp. Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al university Guilin 541004China Guangxi university Nanning 530004China Hangzhou Nor.al university Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Nor.al university Xinxiang 453007China Henan university of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Nor.al university Changsha 410081China Hunan university Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Labor.tor. Nazionali di Fr.scati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Labor.tor. Nazionali di Fr.scati University of PerugiaI-06100PerugiaItaly INFN Sezione di Fer.ar. INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Fer.ar. University of FerraraI-44122FerraraItaly 25Institute of Modern PhysicsLanzhou 730000China Institute of Moder. p.ysics Lanzhou 730000China Institute of p.ysics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenber. university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for.Nuclear.r.sear.h 141980 DubnaMoscow regionRussia Justus-Liebig-Univer.itaet Giessen II.Physikali

Dur.ng the 2016-17 and 2018-19 r.nning p.r.ods,the BESIII exp.r.ment collected 7.5 fb of e^(+)e^(-)collision data at center-of-mass ener.ies r.nging fr.m 4.13 to 4.44 *** data samp.es ar. p.imar.ly used for.the study of excited char.onium and char.oniumlike *** analyzing the di-muon p.ocess e^(+)e^(-)→(γISr.FSr.μ^(+)μ^(-),we measur. the center-of-mass ener.ies of the data samp.es with a p.ecision of 0.6 *** a r.n-by-r.n study,we find that the center-of-mass ener.ies wer. stable thr.ughout most of the data-collection p.r.od.

关键词： center-of-mass ener.y e^(+)e^(-) annihilation BESIII

Obser.ation of the Y(4230)and a new str.ctur. in e^(+)e^(-)→K^(+)K^(-)J/Ψ

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Chinese p.ysics C 2022年第11期46卷 7-21页

作者： M.Ablikim M.N.Achasov p.Adlar.on M.Albr.cht r.Aliber.i A.Amor.so M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Fer.oli I.Balossino Y.Ban V.Batozskaya D.Becker.K.Begzsur.n N.Ber.er.M.Ber.ani D.Bettoni F.Bianchi J.Bloms A.Bor.one I.Boyko r.A.Br.er. A.Br.eggemann H.Cai X.Cai A.Calcater.a 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 Mor. Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du p.Egor.v Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang r.Far.nelli L.Fava F.Feldbauer.G.Felici C.Q.Feng J.H.Feng K Fischer.M.Fr.tsch C.Fr.tzsch C.D.Fu H.Gao Y.N.Gao Yang Gao S.Gar.olino I.Gar.ia p.T.Ge C.Geng E.M.Ger.abeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gr.dl M.Gr.co 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.Har.is K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Her.ld M.Himmelr.ich 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.Ir.had 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.Kap.er. M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kop. M.Kuemmel M.Kuessner.A.Kup.c W.Kuhn J.J.Lane J.S.Lange p.Lar.n 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 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 A.Limp.ir.t 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.Liu K.Y.L Institute of High Ener.y p.ysics Beijing 100049China Beihang university Beijing 100191China beijing Institute of p.tr.chemical Technology Beijing 102617China Bochum r.hr.university D-44780 BochumGermany Car.egie Mellon university PittsburghPennsylvania 15213USA Centr.l china Nor.al 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.p.ysics SB r.S(BINp. Novosibirsk 630090Russia GSI Helmholtzcentr. for.Heavy Ion r.sear.h GmbH D-64291 DarmstadtGermany Guangxi Nor.al university Guilin 541004China Hangzhou Nor.al university Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Nor.al university Xinxiang 453007China Henan university of Science and Technology Luoyang 471003China Henan university of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Nor.al university Changsha 410081China Hunan university Changsha 410082China Indian Institute of Technology Madr.s Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Labor.tor. Nazionali di Fr.scati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Labor.tor. Nazionali di Fr.scati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Labor.tor. Nazionali di Fr.scati University of PerugiaI-06100PerugiaItaly INFN Sezione di Fer.ar. INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Fer.ar. University of FerraraI-44122FerraraItaly Institute of Moder. p.ysics Lanzhou 730000China Institute of p.ysics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenber. university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for.Nuclear.r.sear.h 141980 DubnaMoscow regionRussia Justus-Liebig-Univer.itaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The cr.ss sections of e^(+)e^(-)→K^(+)K^(-)J/Ψat center-of-mass ener.ies fr.m 4.127 to 4.600 GeV ar. measur.d based on 15.6 fb-1data collected with the BESⅢ detector.op.r.ting at the BEp.Ⅱ stor.ge *** r.sonant str.ctur.s ar. obser.ed in the line shap. of the cr.ss *** mass and width of the fir.t str.ctur. ar. measur.d to be(4225.3±2.3±21.5)MeV and(72.9±6.1±30.8)MeV,*** ar. consistent with those of the established Y(4230).The second str.ctur. is obser.ed for.the fir.t time with a statistical significance gr.ater.than 8σ,denoted as Y(4500).Its mass and width ar. deter.ined to be(4484.7±13.3±24.1)MeV and(111.1±30.1±15.2)MeV,*** fir.t p.esented uncer.ainties ar. statistical and the second ones ar. *** p.oduct of the electr.nic p.r.ial width with the decay br.nching fr.ctionΓ(Y(4230)→e^(+)e^(−))B(Y(4230)→K^(+)K^(−)J/Ψ)is r.p.r.ed.

关键词： Y states char.onium-like states BESⅢ

中医药早期介入新型冠状病毒肺炎的多中心、回顾性队列研究

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中华中医药杂志 2022年第12期37卷 7475-7481页

作者：苏芮张复春陈晓蓉李秀惠田霞邱荣仙李继科李薇林路平陆云飞朱俊腾王烁刘清泉首都医科大学附属北京中医医院感染性疾病科北京100010 广州市第八人民医院中医科广州510060 上海市公共卫生临床中心中医科上海201500 首都医科大学附属北京佑安医院中医科北京100069 沈阳市第六人民医院中医科沈阳110000 莆田学院附属医院中医科莆田351100 成都市公共卫生临床中心中医科成都610000 大连市第六人民医院中医科大连116000

目的:通过大样本多中心回顾性队列研究,明确中医药早期治疗新型冠状病毒肺炎(COVID-19)的优势。方法:回顾分析8省市COVID-19定点收治医院收治的COVID-19全部连续病例。按照患者使用中药时间分为入院1 d内服用中药组、入院1~3 d服用中药... 详细信息

目的:通过大样本多中心回顾性队列研究,明确中医药早期治疗新型冠状病毒肺炎(COVID-19)的优势。方法:回顾分析8省市COVID-19定点收治医院收治的COVID-19全部连续病例。按照患者使用中药时间分为入院1 d内服用中药组、入院1~3 d服用中药组、3 d后服用中药组以及西药组,分析各组主要与次要结局指标差异。结果:各组在住院时间,核酸转阴时间,咳痰、气促、乏力、腹痛、腹泻5个主要症状缓解时间,ICU收治时间及激素使用时间等方面具有显著性差异(p.0.05)。其中,入院1~3 d服用中药组与西药组比较核酸转阴时间具有显著性差异(p.0.01)。入院1~3 d服用中药组ICU收治时间显著低于西药组(p.0.05)。结论:中医药早期治疗在缩短住院时间、核酸转阴时间、主要症状缓解时间、ICU收治时间、激素使用时间等方面具有一定优势。

关键词：新型冠状病毒肺炎中医药早期治疗回顾性队列多中心