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sTCF conceptual design report (Volume 1): ph.sics & detector

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Frontiers of ph.sics 2024年第1期19卷 1-154页

作者： m.Ach.sov x.C.Ai l.p.An R.Aliberti Q.An x.Z.Bai y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.h.Bu F.m.Cai h.Cai J.J.Cao Q.h.Cao x.Cao Z.Cao Q.Ch.ng K.T.Chao D.y.Ch.n h.Ch.n h.x.Ch.n J.F.Ch.n K.Ch.n l.l.Ch.n p.Ch.n s.l.Ch.n s.m.Ch.n s.Ch.n s.p.Ch.n W.Ch.n x.Ch.n x.F.Ch.n x.R.Ch.n y.Ch.n y.Q.Ch.n h.y.Ch.ng J.Ch.ng s.Ch.ng T.G.Ch.ng J.p.Dai l.y.Dai x.C.Dai D.Dedovich.A.Denig I.Denisenko J.m.Dias D.Z.ding l.y.Dong W.h.Dong V.Druzh.nin D.s.Du y.J.Du Z.G.Du l.m.Duan D.Epifanov y.l.Fan s.s.Fang Z.J.Fang G.Fedotovich.C.Q.Feng x.Feng y.T.Feng J.l.Fu J.Gao y.N.Gao p.s.Ge C.Q.Geng l.s.Geng A.Gilman l.Gong T.Gong B.Gou W.Gradl J.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo y.p.Guo Z.h.Guo A.Guskov K.l.h.n l.h.n m.h.n x.Q.hao J.B.h. s.Q.h. x.G.h. y.l.h. Z.B.h. Z.x.h.ng B.l.h.u T.J.h.u y.R.h.u C.y.h. h.m.h. K.h. R.J.h. W.h.h. x.h.h. y.C.h. J.h.a G.s.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.h.sken V.Ivanov Q.p.Ji J.J.Jia s.Jia Z.K.Jia h.B.Jiang J.Jiang s.Z.Jiang J.B.Jiao Z.Jiao h.J.Jing x.l.Kang x.s.Kang B.C.Ke m.Kenzie A.Kh.ukaz I.Koop E.Kravch.nko A.Kuzmin y.lei E.levich.v C.h.li C.li D.y.li F.li G.li G.li h.B.li h.li h.N.li h.J.li h.l.li J.m.l. 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.l.u 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.logash.nko 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.m.l.e D.matvienko Z.x.meng R.mitch.ll A.Nefediev y.Nefedov s.l.Olsen Q.Ouyang p.pakh.ov G.pakh.ova x.pan y.p.n E.pass.m.r y.p.pei h.p.peng l.peng x.y.p.ng x.J.peng K.peters s.pivovarov E.pyata B.B.Qi y.Q.Qi W.B.Qian y.Qian C.F.Qiao J.J.Qin J.J.Qin l.Q.Qin x.s.Qin T.l.Qiu J.Rademacker C.F.Redmer h.y.sang Anh.i University Hefei 230039China Beih.ng University Beijing 100191China Budker Institute of Nuclear ph.sics Novosibirsk 630090Russia CAs Key laboratory of Th.oretical ph.sics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish.laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central Ch.na Norm.l.University Wuhan 430079China Central south.University Changsha 410083China Ch.na University of Geosciences Wuhan 430074China Ch.na University of mining and Tech.ology Xuzhou 221116China École polytech.ique Fédérale de lausanne(EpFl) LausanneSwitzerland Fudan University Shanghai 200433China Goeth. University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Norm.l.University Guilin 541004China Guangxi Uninversity Nanning 530004China h.ngzh.u Institute for Advanced study UCASHangzhou 310024China h.bei Norm.l.University Shijiazhuang 050024China h.bei University Baoding 071002China h.fei University of Tech.ology Hefei 230601China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University Kaifeng 475004China h.gh.Energy.p.ysics Center Chung-Ang UniversitySeoul 06974Korea h.gh.r sch.ol of Economy 11 pokrovsky Bulvar Moscow 109028Russia huangsh.n University Huangshan 245000China h.bei University of Automotive Tech.ology Shiyan 442002China h.nan Norm.l.University Changsha 410081China h.nan University of science and Tech.ology Xiangtan 411201China h.nan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner mongolia University Hohhot 010021China Institute of Advanced science Facilities Shenzhen 518107China Institute of h.gh.Energy.p.ysics Chinese Academy of SciencesBeijing 100049China Institute of modern ph.sics Chinese Academy of SciencesLanzhou 730000China Institute of ph.sics Academia SinicaTaipeiTaiwan 11529China Institute of Th.oretical ph.sics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

Th. superτ-ch.rm facility(sTCF)is an electron–positron collider proposed by th. Ch.nese particle ph.sics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with.a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** sTCF will produce a data sam.l. about a factor of 100 larger th.n th.t of th. presentτ-ch.rm factory—th. BEpCII,providing a unique platform for exploring th. as.m.etry of matter-antimatter(ch.rge-parity violation),in-depth.studies of th. internal structure of h.drons and th. nature of non-perturbative strong interactions,as well as search.ng for exotic h.drons and ph.sics beyond th. standard *** sTCF project in Ch.na is under development with.an extensive R&D *** document presents th. ph.sics opportunities at th. sTCF,describes conceptual designs of th. sTCF detector system,and discusses future plans for detector R&D and ph.sics case studies.

关键词： electron–positron collider tau-ch.rm region h.gh.luminosity sTCF detector conceptual design

Am.l.tude analysis of th. decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Ch.nese ph.sics C 2024年第8期48卷 6-33页

作者： m.Ablikim m.N.Ach.sov p.Adlarson O.Afedulidis x.C.Ai R.Aliberti A.Amoroso Q.An y.Bai O.Bakina I.Balossino y.Ban h.-R.Bao V.Batozskaya K.Begzsuren N.Berger m.Berlowski m.Bertani D.Bettoni F.Bianch. E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann h.Cai x.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin J.F.Ch.ng W.l.Ch.ng G.R.Ch. G.Ch.lkov C.Ch.n C.h.Ch.n Chao Ch.n G.Ch.n h.s.Ch.n m.l.Ch.n s.J.Ch.n s.l.Ch.n s.m.Ch.n T.Ch.n x.R.Ch.n x.T.Ch.n y.B.Ch.n y.Q.Ch.n Z.J.Ch.n Z.y.Ch.n s.K.Ch.i x.Ch. G.Cibinetto F.Cossio J.J.Cui h.l.Dai J.p.Dai A.Dbeyssi R.E.de Boer D.Dedovich.C.Q.Deng Z.y.Deng A.Denig I.Denysenko m.Destefanis F.De mori B.Fang s.s.Fang W.x.Fang y.Fang y.Q.Fang R.Farinelli l.Fava F.Feldbauer G.Felici C.Q.Feng J.h.Feng y.T.Feng K.Fisch.r m.Fritsch.C.D.Fu J.l.Fu y.W.Fu h.Gao y.N.Gao yang Gao s.Garbolino I.Garzia p.T.Ge Z.W.Ge C.Geng E.m.Gersabeck B.ding x.x.ding y.ding y.ding J.Dong l.y.Dong m.y.Dong x.Dong m.C.Du s.x.Du Z.h.Duan p.Egorov y.h.Fan J.Fang JA.Gilman K.Goetzen l.Gong W.x.Gong W.Gradl s.Gramigna m.Greco m.h.Gu y.T.Gu C.y.Guan Z.l.Guan A.Q.Guo l.B.Guo m.J.Guo R.p.Guo y.p.Guo A.Guskov J.Gutierrez K.l.h.n T.T.h.n x.Q.hao F.A.h.rris K.K.h. K.l.h. F.h.h.insius C.h.h.inz y.K.h.ng C.h.rold T.h.ltmann p.C.h.ng G.y.h.u x.T.h.u y.R.h.u Z.l.h.u B.y.h. h.m.h. J.F.h. T.h. y.h. G.s.huang K.x.huang l.Q.huang x.T.huang y.p.huang T.h.ssain F.h."olzken N.h."usken N.in der Wiesch. m.Irsh.d J.Jackson s.Janch.v J.h.Jeong Q.Ji Q.p.Ji W.Ji x.B.Ji x.l.Ji y.y.Ji x.Q.Jia Z.K.Jia D.Jiang h.B.Jiang p.C.Jiang s.s.Jiang T.J.Jiang x.s.Jiang y.Jiang J.B.Jiao J.K.Jiao Z.Jiao s.Jin y.Jin m.Q.Jing x.m.Jing T.Joh.nsson s.Kabana N.Kalantar-Nayestanaki x.l.Kang x.s.Kang m.Kavatsyuk B.C.Ke V.Kh.ch.tryan A.Kh.ukaz R.Kiuch. O.B.Kolcu B.Kopf m.Kuessner x.Kui A.Kupsc W.K\"uh. J.J.lane p.larin l.lavezzi T.T.lei Z.h.lei h.leith.ff m.l.llmann T.lenz C.li C.li C.h.li Ch.ng li D.m.l. F.li G.li h.li h.B.li h.J.li h.N.li h.i li J.R.li J.s.li K.li l.J.li l.K.li lei li m.h.li p.R.li Q.m.l. 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 h.gh.Energy.p.ysics Chinese Academy of SciencesBeijing 100049China Beih.ng University Beijing 100191China Boch.m Ruh.-University D-44780 BochumGermany Budker Institute of Nuclear ph.sics sB RAs(BINp) Novosibirsk 630090Russia Carnegie m.l.on University PittsburghPennsylvania 15213USA Central Ch.na Norm.l.University Wuhan 430079China Central south.University Changsha 410083China Ch.na Center of Advanced science and Tech.ology Beijing 100190China Ch.na University of Geosciences Wuhan 430074China Ch.ng-Ang University Seoul06974Republic of Korea COmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Norm.l.University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Norm.l.University Hangzhou 310036China h.bei University Baoding 071002China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University Kaifeng 475004China h.nan University of science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China huangsh.n College Huangshan 245000China h.nan Norm.l.University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly Inner mongolia University Hohhot 010021China Institute of modern ph.sics Lanzhou 730000China Institute of ph.sics and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

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

关键词： BEsIII D^(0)meson decays am.l.tude analysis Cp-even fraction

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

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Ch.nese ph.sics C 2024年第9期48卷 8-20页

作者： m.Ablikim m.N.Ach.sov p.Adlarson O.Afedulidis x.C.Ai R.Aliberti A.Amoroso Q.An y.Bai O.Bakina I.Balossino y.Ban h.-R.Bao V.Batozskaya K.Begzsuren N.Berger m.Berlowski m.Bertani D.Bettoni F.Bianch. E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann h.Cai x.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin J.F.Ch.ng G.R.Ch. G.Ch.lkov C.Ch.n C.h.Ch.n Chao Ch.n G.Ch.n h.s.Ch.n h.y.Ch.n m.l.Ch.n s.J.Ch.n s.l.Ch.n s.m.Ch.n T.Ch.n x.R.Ch.n x.T.Ch.n y.B.Ch.n y.Q.Ch.n Z.J.Ch.n Z.y.Ch.n s.K.Ch.i G.Cibinetto F.Cossio J.J.Cui h.l.Dai J.p.Dai A.Dbeyssi R.E.de Boer D.Dedovich.C.Q.Deng Z.y.Deng A.Denig I.Denysenko m.Destefanis F.De mori B.ding x.x.ding y.ding y.ding J.Dong l.y.Dong m.y.Dong x.Dong m.C.Du s.x.Du y.y.Duan Z.h.Duan p.Egorov y.h.Fan J.Fang J.Fang s.s.Fang W.x.Fang y.Fang y.Q.Fang R.Farinelli l.Fava F.Feldbauer G.Felici C.Q.Feng J.h.Feng y.T.Feng m.Fritsch.C.D.Fu J.l.Fu y.W.Fu h.Gao x.B.Gao y.N.Gao yang Gao s.Garbolino I.Garzia l.Ge p.T.Ge Z.W.Ge C.Geng E.m.Gersabeck A.Gilman K.Goetzen l.Gong W.x.Gong W.Gradl s.Gramigna m.Greco m.h.Gu y.T.Gu C.y.Guan Z.l.Guan A.Q.Guo l.B.Guo m.J.Guo R.p.Guo y.p.Guo A.Guskov J.Gutierrez K.l.h.n T.T.h.n F.h.nisch.x.Q.hao F.A.h.rris K.K.h. K.l.h. F.h.h.insius C.h.h.inz y.K.h.ng C.h.rold T.h.ltmann p.C.h.ng G.y.h.u x.T.h.u y.R.h.u Z.l.h.u B.y.h. h.m.h. J.F.h. s.l.h. T.h. y.h. G.s.huang K.x.huang l.Q.huang x.T.huang y.p.huang T.h.ssain F.h.lzken N.h.sken N.in der Wiesch. J.Jackson s.Janch.v J.h.Jeong Q.Ji Q.p.Ji W.Ji x.B.Ji x.l.Ji y.y.Ji x.Q.Jia Z.K.Jia D.Jiang h.B.Jiang p.C.Jiang s.s.Jiang T.J.Jiang x.s.Jiang y.Jiang J.B.Jiao J.K.Jiao Z.Jiao s.Jin y.Jin m.Q.Jing x.m.Jing T.Joh.nsson s.Kabana N.Kalantar-Nayestanaki x.l.Kang x.s.Kang m.Kavatsyuk B.C.Ke V.Kh.ch.tryan A.Kh.ukaz R.Kiuch. O.B.Kolcu B.Kopf m.Kuessner x.Kui N.Kumar A.Kupsc W.Küh. J.J.lane p.larin l.lavezzi T.T.lei Z.h.lei m.l.llmann T.lenz C.li C.li C.h.li Ch.ng li D.m.l. F.li G.li h.B.li h.J.li h.N.li h.i li J.R.li J.s.li Ke li l.J.li l.K.li lei li m.h.li p.R.li Q.m.l. 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 h.gh.Energy.p.ysics Beijing 100049China Beih.ng University Beijing 100191China Boch.m Ruh.-University D-44780BochumGermany Budker Institute of Nuclear ph.sics sB RAs(BINp) Novosibirsk 630090Russia Carnegie m.l.on University PittsburghPennsylvania 15213USA Central Ch.na Norm.l.University Wuhan 430079China Central south.University Changsha 410083China Ch.na Center of Advanced science and Tech.ology Beijing 100190China Ch.na University of Geosciences Wuhan 430074China Ch.ng-Ang University Seoul06974Republic of Korea COmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan Fudan University Shanghai 200433China GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291DarmstadtGermany Guangxi Norm.l.University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Norm.l.University Hangzhou 310036China h.bei University Baoding 071002China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University Kaifeng 475004China h.nan University of science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China huangsh.n College Huangshan 245000China h.nan Norm.l.University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner mongolia University Hohhot 010021China Institute of modern ph.sics Lanzhou 730000China Institute of ph.sics and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile Jilin University Changchun 130012China Joh.

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

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

study of BEsIII trigger efficiencies with.th. 2018 J/ψ data

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Ch.nese ph.sics C 2021年第2期45卷 48-55页

作者： m.Ablikim m.N.Ach.sov p.Adlarson s.Ah.ed m.Albrech. R.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.Bianch. 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.Ch.ng W.l.Ch.ng G.Ch.lkov D.y.Ch.n G.Ch.n h.s.Ch.n m.l.Ch.n s.J.Ch.n x.R.Ch.n y.B.Ch.n Z.J Ch.n W.s.Ch.ng 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.h.n W.y.h.n x.Q.hao F.A.h.rris h.h.sken K.l.h. F.h.h.insius C.h.h.inz T.h.ld y.K.h.ng C.h.rold m.h.mm.l.eich.T.h.ltmann y.R.h.u Z.l.h.u h.m.h. J.F.h. T.h. y.h. G.s.huang l.Q.huang x.T.huang y.p.huang Z.huang T.h.ssain W.Ikegami Andersson W.Imoeh. m.Irsh.d s.Jaeger s.Janch.v Q.Ji Q.p.Ji x.B.Ji x.l.Ji h.B.Jiang x.s.Jiang J.B.Jiao Z.Jiao s.Jin y.Jin T.Joh.nsson N.Kalantar-Nayestanaki x.s.Kang R.Kappert m.Kavatsyuk B.C.Ke I.K.Kesh. A.Kh.ukaz p.Kiese R.Kiuch. R.Kliemt l.Koch.O.B.Kolcu B.Kopf m.Kuemm.l.m.Kuessner A.Kupsc m.G.Kurth.W.Küh. J.J.lane J.s.lange p.larin A.lavania l.lavezzi Z.h.lei h.leith.ff m.l.llmann T.lenz C.li C.h.li Ch.ng li D.m.l. 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.l.u h.anh.an liu h.ih.i liu J.B.liu J.l.liu J.y.liu K.liu K.y.liu Ke liu l.liu m.h.liu p.l.liu Q.liu Q.liu s.B.liu sh.ai liu T.liu W.m.l.u 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 h.gh.Energy.p.ysics Beijing 100049China Beih.ng University Beijing 100191China Beijing Institute of petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie m.l.on University PittsburghPennsylvania 15213USA Central Ch.na Norm.l.University Wuhan 430079China Ch.na Center of Advanced science and Tech.ology Beijing 100190China COmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China GIBudker Institute of Nuclear ph.sics sB RAs(BINp) Novosibirsk 630090Russia GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Norm.l.University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Norm.l.University Hangzhou 310036China h.lmh.ltz Institute mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University of science and Tech.ology Luoyang 471003China huangsh.n College Huangshan 245000China h.nan Norm.l.University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology 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 ph.sics Lanzhou 730000China Institute of ph.sics and Tech.ology Peace Ave54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Joh.nnes 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 lanzh.u University Lanzhou 730000China liaoning Norm.l.Unive

Using a dedicated data sam.l. taken in 2018 on th. J/ψpeak,we perform a detailed study of th. trigger efficiencies of th. BEsIII *** efficiencies are determined from th.ee representative ph.sics processes,nam.l. Bh.bh. scattering,dimuon production and generic h.dronic events with.ch.rged *** combined efficiency of all active triggers approach.s 100%in most cases,with.uncertainties sm.l. enough.not to affect most ph.sics analyses.

关键词： BEsIII trigger efficiency Bh.bh. dimuon h.dronic events

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

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Ch.nese ph.sics C 2021年第5期45卷 190-201页

作者： F.p.An A.B.Balantekin h.R.Band m.Bish.i s.Blyth.G.F.Cao J.Cao J.F.Ch.ng y.Ch.ng h.s.Ch.n s.m.Ch.n y.Ch.n y.x.Ch.n J.Ch.ng Z.K.Ch.ng J.J.Ch.rwinka m.C.Ch. J.p.Cummings O.Dalager F.s.Deng y.y.ding m.V.Diwan T.Doh.al J.Dove m.Dvorak D.A.Dwyer J.p.Gallo m.Gonch.r G.h.Gong h.Gong W.Q.Gu J.y.Guo l.Guo x.h.Guo y.h.Guo Z.Guo R.W.h.ckenburg s.h.ns.m.h. K.m.h.eger y.K.h.ng A.h.guera y.K.h.r y.B.h.iung B.Z.h. J.R.h. T.h. Z.J.h. h.x.huang x.T.huang y.B.huang p.h.ber D.E.Jaffe K.l.Jen x.l.Ji x.p.Ji R.A.Joh.son D.Jones l.Kang s.h.Kettell s.Koh. m.Kramer T.J.langford 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.li y.F.li Z.B.li h.liang C.J.lin G.l.lin s.lin J.J.ling J.m.l.nk l.littenberg B.R.littlejoh. J.C.liu J.l.liu C.lu h.Q.lu J.s.lu K.B.luk x.B.ma x.y.ma y.Q.ma C.marsh.ll D.A.martinez Caicedo K.T.meDonald R.D.mcKeown y.meng J.Napolitano D.Naumov E.Naumova J.p.Och.a-Ricoux A.OIsh.vskiy h.-R.pan J.park s.patton J.C.peng C.s.J.pun F.Z.Qi m.Qi x.Qian 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.Wh.snant C.G.Wh.te 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.Zeng y.Zeng l.Zh.n C.Zh.ng F.y.Zh.ng h.h.Zh.ng J.W.Zh.ng Q.m.Zh.ng x.T.Zh.ng y.m.Zh.ng y.x.Zh.ng y.y.Zh.ng Z.J.Zh.ng Z.p.Zh.ng Z.y.Zh.ng J.Zhao l.Zh.u h.l.Zhuang J.h.Zou Instiute of modern ph.sics East China University of Science and TechnologyShanghai 200237 University of Wisconsin MadisonWisconsin 53706 Wrigh. laboratory and Department of ph.sics Yale UniversityNew HavenConnecticut 06520 Brookh.ven National laboratory UptonNew York 11973 Department of ph.sics National Taiwan UniversityTaipei Institute of h.gh.Energy.p.ysics Beijing 100049 National United University Miao-Li Department of Engineering ph.sics Tsinghua UniversityBejing 100084 sh.nzh.n University Shenzhen 518060 sun yat-sen(Zh.ngsh.n)University Guangzhou North.Ch.na Electric power University Bejjing 102206 Ch.nese University of h.ng Kong Hong Kong 999077 siena College LoudonvilleNew York 12211 Department of ph.sics and Astronomy University of CaliforniaIrvineCaliformia 92697 University of science and Tech.ology of Ch.na Hefei 230026 Ch.rles University Faculty of Mathematics and PhysicsPrague Department of ph.sics University of llinois at Urbana-ChampaignUrbanaIlinois 61801 lawrence Berkeley National laboratory BerkeleyCalifornia 94720 Department of ph.sics Illinois Institute of TechnologyChicagoIllinois 60616 Joint Institute for Nuclear Research DubnaMoscow Region Beijing Norm.l.University Beijing 100875 Department of Nuclear science and Tech.ology School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049 Department of ph.sics University of HoustonHoustonTexas 77204 Ch.na Institute of Atomic Energy Beijing 102413 sh.ndong University Jinan 250100 Guangxi University Nanning 530004 Center for Neutrino ph.sics Virginia TechBlacksburgVirginia 24061 Institute of ph.sics National Chiao-Tung UniversityHsinchu Department of ph.sics University of CincinnatiCincinnatiOhio 45221 Department of ph.sies Collge of Science and TechnologyTemple UniversityPhiladelphiaPennsylvania 19122 Dongguan University of Tech.ology Dongguan 523808 Department of ph.sics University of CaliforniaBerkeleyCalifornia 94720 Department of ph.sics The University of Hong KongPokfulamHong Kong 999077 sch.ol

Th. establis.m.nt of a possible connection between neutrino emission and gravitational-wave(GW)bursts is important to our understanding of th. ph.sical processes th.t occur wh.n black h.les or neutron stars *** th. Daya Bay experiment,using th. data collected from December 2011 to August 2017,a search.was per-formed for electron-antineutrino signals th.t coincided with.detected GW events,including GW150914,GW151012,GW151226,GW170104,GW170608,GW 170814,and GW *** used th.ee time windows of±10,±500,and±1000 s relative to th. occurrence of th. GW events and a neutrino energy range of 1.8 to 100 meV to search.for correlated neutrino *** detected electron-antineutrino candidates were consistent with.th. expected background rates for all th. th.ee time *** monoch.omatic spectra,we found upper limits(90%confidence level)of th. electron-antineutrino fluence of(1.13-2.44)×10^(11)cm^(-2)at 5 meV to 8.0×10^(7)cm^(-2)at 100 meV for th. th.ee time w *** th. ass.m.tion of a Fermi-Dirac spectrum,th. upper limits were found to be(5.4-7.0)×10^(9)cm^(2)for th. th.ee time windows.

关键词： grav itational waves electron-antineutrinos fluence upper limit

Observation of th. y(4230)and a new structure in e^(+)e^(-)→K^(+)K^(-)J/Ψ

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Ch.nese ph.sics C 2022年第11期46卷 7-21页

作者： m.Ablikim m.N.Ach.sov p.Adlarson m.Albrech. 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.Bianch. 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.Ch.ng W.l.Ch.ng G.Ch.lkov C.Ch.n G.Ch.n h.s.Ch.n m.l.Ch.n s.J.Ch.n T.Ch.n x.R.Ch.n x.T.Ch.n y.B.Ch.n Z.J.Ch.n W.s.Ch.ng x.Ch. 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 Fisch.r 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.h.n W.y.h.n x.Q.hao F.A.h.rris K.K.h. K.l.h. F.h.h.insius C.h.h.inz y.K.h.ng C.h.rold m.h.mm.l.eich.T.h.ltmann G.y.h.u y.R.h.u Z.l.h.u h.m.h. J.F.h. T.h. y.h. G.s.huang K.x.huang l.Q.huang l.Q.huang x.T.huang y.p.huang Z.huang T.h.ssain N h.sken W.Imoeh. m.Irsh.d J.Jackson s.Jaeger s.Janch.v 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.Joh.nsson N.Kalantar-Nayestanaki x.s.Kang R.Kappert m.Kavatsyuk B.C.Ke I.K.Kesh. A.Kh.ukaz p.Kiese R.Kiuch. R.Kliemt l.Koch.O.B.Kolcu B.Kopf m.Kuemm.l.m.Kuessner A.Kupsc W.Kuh. J.J.lane J.s.lange p.larin A.lavania l.lavezzi Z.h.lei h.leith.ff m.l.llmann T.lenz C.li C.li C.h.li Ch.ng li D.m.l. 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.limph.rat 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.l.u h.liu h.m.l.u h.anh.an liu h.ih.i liu J.B.liu J.l.liu J.y.liu K.liu K.y.l Institute of h.gh.Energy.p.ysics Beijing 100049China Beih.ng University Beijing 100191China Beijing Institute of petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie m.l.on University PittsburghPennsylvania 15213USA Central Ch.na Norm.l.University Wuhan 430079China Ch.na Center of Advanced science and Tech.ology Beijing 100190China COmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear ph.sics sB RAs(BINp) Novosibirsk 630090Russia GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Norm.l.University Guilin 541004China h.ngzh.u Norm.l.University Hangzhou 310036China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University of science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China huangsh.n College Huangshan 245000China h.nan Norm.l.University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly Institute of modern ph.sics Lanzhou 730000China Institute of ph.sics and Tech.ology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Joh.nnes 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

Th. cross sections of e^(+)e^(-)→K^(+)K^(-)J/Ψat center-of-mass energies from 4.127 to 4.600 GeV are measured based on 15.6 fb-1data collected with.th. BEsⅢ detector operating at th. BEpCⅡ storage *** resonant structures are observed in th. line sh.pe of th. cross *** mass and width.of th. first structure are measured to be(4225.3±2.3±21.5)meV and(72.9±6.1±30.8)meV,*** are consistent with.th.se of th. establish.d y(4230).Th. second structure is observed for th. first time with.a statistical significance greater th.n 8σ,denoted as y(4500).Its.m.ss and width.are determined to be(4484.7±13.3±24.1)meV and(111.1±30.1±15.2)meV,*** first presented uncertainties are statistical and th. second ones are *** product of th. electronic partial width.with.th. decay branch.ng fractionΓ(y(4230)→e^(+)e^(−))B(y(4230)→K^(+)K^(−)J/Ψ)is reported.

关键词： y states ch.rmonium.l.ke states BEsⅢ

measurements of th. center-of-mass energies of e^(+)e^(-)collisions at BEsIII

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Ch.nese ph.sics C 2021年第10期45卷 7-15页

作者： m.Ablikim m.N.Ach.sov p.Adlarson s.Ah.ed m.Albrech. R.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.Bianch. 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.Ch.ng W.l.Ch.ng G.Ch.lkov D.y.Ch.n G.Ch.n h.s.Ch.n m.l.Ch.n s.J.Ch.n x.R.Ch.n y.B.Ch.n Z.J.Ch.n W.s.Ch.ng 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.h.n W.y.h.n x.Q.hao F.A.h.rris K.l.h. F.h.h.insius C.h.h.inz T.h.ld y.K.h.ng C.h.rold m.h.mm.l.eich.T.h.ltmann G.y.h.u y.R.h.u Z.l.h.u h.m.h. J.F.h. T.h. y.h. G.s.huang l.Q.huang x.T.huang y.p.huang Z.huang T.h.ssain N h.sken W.Ikegami Andersson W.Imoeh. m.Irsh.d s.Jaeger s.Janch.v Q.Ji Q.p.Ji x.B.Ji x.l.Ji y.y.Ji h.B.Jiang x.s.Jiang J.B.Jiao Z.Jiao s.Jin y.Jin m.Q.Jing T.Joh.nsson N.Kalantar-Nayestanaki x.s.Kang R.Kappert m.Kavatsyuk B.C.Ke I.K.Kesh. A.Kh.ukaz p.Kiese R.Kiuch. R.Kliemt l.Koch.O.B.Kolcu B.Kopf m.Kuemm.l.m.Kuessner A.Kupsc m.G.Kurth.W.Kuh. J.J.lane J.s.lange p.larin A.lavania l.lavezzi Z.h.lei h.leith.ff m.l.llmann T.lenz C.li C.h.li Ch.ng li D.m.l. 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.l.u h.anh.an liu h.ih.i liu J.B.liu J.l.liu J.y.liu K.liu K.y.liu l.liu m.h.liu p.l.liu Q.liu Q.liu s.B.liu sh.ai liu T.liu W.m.l.u 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 h.gh.Energy.p.ysics Beijing 100049China Beih.ng University Beijing 100191China Beijing Institute of petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Carnegie m.l.on University PittsburghPennsylvania 15213USA Central Ch.na Norm.l.University Wuhan 430079China Ch.na Center of Advanced science and Tech.ology Beijing 100190China COmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear ph.sics sB RAs(BINp) Novosibirsk 630090Russia GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Norm.l.University Guilin 541004China Guangxi University Nanning 530004China h.ngzh.u Norm.l.University Hangzhou 310036China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University of science and Tech.ology Luoyang 471003China huangsh.n College Huangshan 245000China h.nan Norm.l.University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly 25Institute of Modern PhysicsLanzhou 730000China Institute of modern ph.sics Lanzhou 730000China Institute of ph.sics and Tech.ology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Joh.nnes 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 th. 2016-17 and 2018-19 running periods,th. BEsIII experiment collected 7.5 fb of e^(+)e^(-)collision data at center-of-mass energies ranging from 4.13 to 4.44 *** data sam.l.s are primarily used for th. study of excited ch.rmonium and ch.rmoniumlike *** analyzing th. di-muon process e^(+)e^(-)→(γIsR=FsR)μ^(+)μ^(-),we measure th. center-of-mass energies of th. data sam.l.s with.a precision of 0.6 *** a run-by-run study,we find th.t th. center-of-mass energies were stable th.ough.ut most of th. data-collection period.

关键词： center-of-mass energy e^(+)e^(-) annih.lation BEsIII

Number of J/ψ events at BEsIII

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Ch.nese ph.sics C 2022年第7期46卷 74-84页

作者： m.Ablikim m.N.Ach.sov p.Adlarson s.Ah.ed m.Albrech. 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.Bianch. 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.Ch.ng W.l.Ch.ng G.Ch.lkov G.Ch.n h.s.Ch.n m.l.Ch.n s.J.Ch.n x.R.Ch.n y.B.Ch.n Z.J.Ch.n W.s.Ch.ng 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 mori y.ding C.Dong J.Dong l.y.Dong m.y.Dong x.Dong s.x.Du p.Egorov 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 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 C..y.Guan A.Q.Guo A.Q.Guo l.B.Guo R.p.Guo y.p.Guo A.Guskov T.T.h.n W.y.h.n x.Q.hao F.A.h.rris K.K.h. K.l.h. F.h.h.insius C.h.h.inz y.K.h.ng C.h.rold m.h.mm.l.eich.T.h.ltmann G.y.h.u y.R.h.u Z.l.h.u h.m.h. J.F.h. T.h. y.h. G.s.huang l.Q.huang x.T.huang y.p.huang Z.huang T.h.ssain N h.sken W.Ikegami Andersson W.Imoeh. m.Irsh.d s.Jaeger s.Janch.v Q.Ji Q.p.Ji x.B.Ji x.l.Ji y.y.Ji h.B.Jiang x.s.Jiang J.B.Jiao Z.Jiao s.Jin y.Jin m.Q.Jing T.Joh.nsson N.Kalantar-Nayestanaki x.s.Kang R.Kappert m.Kavatsyuk B.C.Ke I.K.Kesh. A.Kh.ukaz p.Kiese R.Kiuch. R.Kliemt l.Koch.O.B.Kolcu B.Kopf m.Kuemm.l.m.Kuessner A.Kupsc m.G.Kurth.W.Kuh. J.J.lane J.s.lange p.larin A.lavania l.lavezzi Z.h.lei h.leith.ff m.l.llmann T.lenz C.li C.h.li Ch.ng li D.m.l. 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.limph.rat 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.l.u h.m.l.u h.anh.an liu h.ih.i liu J.B.liu J.l.liu J.y.liu K.liu K.y.liu Ke liu l.liu m.h.liu p.l.liu Q.liu Q.liu s.B.liu T.liu T.liu W.m.l.u 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 h.gh.Energy.p.ysics Beijing 100049China Beih.ng University Beijing 100191China Beijing Institute of petroch.mical Tech.ology Beijing 102617China Boch.m Ruh.-University D-44780 BochumGermany Camnegie m.l.on University PittsburghPennsylvania 15213USA Central Ch.na Norm.l.University Wuhan 430079China Ch.na Center of Advanced science and Tech.ology Beijing 100190China COmsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear ph.sies sBRAs(BINp) Novosibirsk 630090Russia GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 DarmstadtGermany Guangxi Norm.l.University Guilin 541004China h.ngzh.u Norm.l.University Hangzhou 310036China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Norm.l.University Xinxiang 453007China h.nan University of science and Tech.ology Luoyang 471003China h.nan University of Tech.ology Zhengzhou 450001China huangsh.n College Huangshan 245000China h.nan Norm.l.University Changsha 410081China h.nan University Changsha 410082China Indian Institute of Tech.ology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati I-00044FrascatiItaly INFN sezione di perugia I-06100PerugiaItaly University of perugia I-06100PerugiaItaly University of Ferrara I-44122FerraraItaly Institute of modern ph.sics Lanzhou 730000China Institute of ph.sies and Tech.ology.p.ace Ave 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Joh.nnes Gutenberg University of mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen Ⅱ.Physikaliches InstitutHeinricH-Buff-Ring 16D-35392 GiessenGermany lanzh.u University Lnzhou 730000China liaoning Norm.l.University Dalian 116029China liaoning University Shenyang 110036China Nanjing Norm.l.University Nanjing 210023China Nanjing Univ

Using inclusive decays of J/ψ aprecise determination of th. number of J/ψ events collected with.th. BEsIII detector was *** th. two data sets taken in 2009 and 2012,th. numbers of J/ψ events were recalculated to be(224.0±1.3)×10^(6) and(1088.5±4.4)×10^(6),respectively;th.se numbers are in good agreement with.th. previous.m.asurements. For th. J/ψ sam.l. taken in 2017-2019,th. number of events was determined to be(8774.0±39.4)×10^(6).Th. total number of J/ψ events collected with.th. BEsIII detector was determined to be(10087±44)×10^(6),wh.re th. uncertainty is dominated by systematic effects,and th. statistical uncertainty is negligible.

关键词： number of J/ψevents BEsIII detector inclusive J/ψdecays

measurement of th. integrated luminosities of cross-section scan data sam.l.s around th.ψ(3770)mass region

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Ch.nese ph.sics C 2018年第6期42卷 1-8页

作者： m. Ablikim m. N. Ach.sov s. Ah.ed m. Albrech. m. Alekseev A. Amoroso F. F. An Q. An y. Bai O. Bakina R. Baldini Ferroli y. Ban K. Begzsuren D. W. Bennett J. V. Bennett N. Berger m. Bertani D. Bettoni F. Bianch. E. Boger I. Boyko R. A. Briere h. Cai x. Cai O. Cakir A. Calcaterra G. F. Cao s. A. Cetin J. Ch.i J. F. Ch.ng W. l. Ch.ng G. Ch.lkov G. Ch.n h. s. Ch.n J. C. Ch.n m. l. Ch.n p. l. Ch.n s. J. Ch.n x. R. Ch.n y. B. Ch.n x. K. Ch. 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. h.ddadi s. h.n x. Q. hao F. A. h.rris Z. l. h. x. O. h. F. h. h.insius T. h.ld y. K. h.ng T. h.ltmann Z. l. h.u h. m. h. J. F. gu T. h. y. h. G. s. huang J. s. huang x. T. huang x. Z. huang Z. l. guang T. h.ssain W. Ikegami Andersson m Irsh.d Q. Ji Q. p. Ji x. B. Ji x. l. Ji x. s. Jiang x. y. Jiang J. B. Jiao Z. Jiao D. p. Jin s. Jin y. Jin T. Joh.nsson A. Julin N. Kalantar-Nayestanaki x. s. Kang m. Kavatsyuk B. C. Ke T. Kh.n A. Kh.ukaz p. Kiese R. Kliemt l. Koch.O. B. Kolcu B. Kopf m. Kornicer m. Kuemm.l.m. Kuessner A. Kupsc m. Kurth.W. Kiih. J. s. lange m. lara p. larin l. lavezzi s. leiber h. leith.fi C. li Ch.ng li D. m. li F. li F. y. li G. li h. B. li h. J. li J. C. li J. W. li K. J. li Kang li Ke li lei li p. l. li p. R. li Q. y. li T. li W. D. li W. G. li x. l. li x. N. li x. Q. li Z. B. li h. liang y. F. liang y. T. liang G. R. liao l. Z. liao J. libby C. x. lin D. x. lin s. liu B. J. liu C. x. liu D. liu D. y. liu F. h. liu Fang liu Feng liu h. B. liu h. l liu h. m. liu h.anh.an liu h.ih.i liu J. B. liu J. y. liu K. liu K. y. liu Ke liu l. D. liu Q. liu s B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beih.ng University Beijing 100191 China Beijing Institute of petroch.mical Tech.ology Beijing 102617 China Boch.m Ruh.-University D-44780 Bochum Germany Carnegie m.l.on University Pittsburgh Pennsylvania 15213 USA Central Ch.na Norm.l.University Wuhan 430079 China Ch.na Center of Advanced science and Tech.ology Beijing 100190 China COmsATs Institute of Information Tech.ology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of Nuclear ph.sics sB RAs （BINp） Novosibirsk 630090 Russia GsI h.lmh.ltzcentre for h.avy Ion Research.Gmbh D-64291 Darmstadt Germany Guangxi Norm.l.University Guilin 541004 China Guangxi University Nanning 530004 China h.ngzh.u Norm.l.University Hangzhou 310036 China h.lmh.ltz Institute mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany h.nan Norm.l.University Xinxiang 453007 China h.nan University of science and Tech.ology Luoyang 471003 China huangsh.n College Huangshan 245000 China h.nan Norm.l.University Changsha 410081 China h.nan University Changsha 410082 China Indian Institute of Tec

To investigate th. nature of th. Ψ（3770） resonance and to measure th. cross section for e^＋e^-→DD, a cross-section scan data sam.l., distributed among 41 center-of-mass energy.p.ints from 3.73 to 3.89 GeV, was taken with.th. BEsIII detector operated at th. BEpCII collider in th. year 2010. By analyzing th. large angle Bh.bh. scattering events, we measure th. integrated luminosity of th. data sam.l. at each.center-of-mass energy.p.int. Th. total integrated luminosity of th. data sam.l. is 76.16±0.04±0.61 pb^-1, wh.re th. first uncertainty is statistical and th. second systematic.

关键词： Bh.bh. scattering events integrated luminosity BEsⅢ