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Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at √sNN=200 GeV

Chinese physics C 2020年第10期44卷 59-67页

作者： L.Adamczyk J.r.Adams J.K.Adkins G.Agakishiev M.M.Aggarwal Z.Ahammed I.Alekseev D.M.Anderson A.Ap.rin e.C.Aschenauer M.U.Ashraf F.G.Atetalla A.Attri G.S.Averichev V.Bairathi K.Barish A.Behera r.Bellwied A.Bhasin J.Bielcik J.Bielcikova L.C.Bland I.G.Bordyuzhin J.D.Brandenburg A.V.Brandin J.Butterworth H.Caines M.Calderón de la Barca Sánchez D.Cebra I.Chakaberia p.Chaloupka B.K.Chan F-H.Chang Z.Chang N.Chankova-Bunzarova A.Chatterjee D.Chen J.H.Chen X.Chen Z.Chen J.Cheng M.Cherney M.Chevalier S.Choudhury W.Christie X.Chu H.J.Crawford M.Csanád M.Daugherity T.G.Dedovich I.M.Deppner A.A.Derevschikov L.Didenko X.dong J.L.Drachenberg J.C.Dunlop T.edmonds N.elsey J.engelage G.eppley S.esumi O.evdokimov A.ewigleben O.eyser r.Fatemi S.Fazio p.Federic J.Fedorisin C.J.Feng Y.Feng p.Filip e.Finch Y.Fisyak A.Francisco L.Fulek C.A.Gagliardi T.Galatyuk F.Geurts A.Gibson K.Gopal D.Grosnick W.Guryn A.I.Hamad A.Hamed S.Harabasz J.W.Harris S.He W.He X.H.He S.Heppelmann S.Heppelmann N.Herrmann e.Hoffman L.Holub Y.Hong S.Horvat Y.Hu H.Z.Huang S.L.Huang T.Huang X.Huang T.J.Humanic p.Huo G.Igo D.Isenhower W.W.Jacobs C.Jena A.Jentsch Y.JI J.Jia K.Jiang S.Jowzaee X.Ju e.G.Judd S.Kabana M.L.Kabir S.Kagamaster D.Kalinkin K.Kang D.Kapukchyan K.Kauder H.W.Ke D.Keane A.Kechechyan M.Kelsey Y.V.Khyzhniak D.p.Kikoła C.Kim B.Kimelman D.Kincses T.A.Kinghorn I.Kisel A.Kiselev M.Kocan L.Kochenda L.K.Kosarzewski L.Kramarik p.Kravtsov K.Krueger N.Kulathunga Mudiyanselage L.Kumar S.Kumar r.Kunnawalkam elayavalli J.H.Kwasizur r.Lacey S.Lan J.M.Landgraf J.Lauret A.Lebedev r.Lednicky J.H.Lee Y.H.Leung C.Li W.Li W.Li X.Li Y.Li Y.Liang r.Licenik T.Lin Y.Lin M.A.Lisa F.Liu H.Liu p.Liu p.Liu T.Liu X.Liu Y.Liu Z.Liu T.Ljubicic W.J.Llope r.S.Longacre N.S.Lukow S.Luo X.Luo G.L.Ma L.Ma r.Ma Y.G.Ma N.Magdy r.Majka D.Mallick S.Margetis C.Markert H.S.Matis J.A.Mazer N.G.Minaev S.Mioduszewski B.Mohanty I.Mooney Z.Moravcova D.A.Morozov M.Nagy J.D.Nam Nasim Md K.Nayak D.Neff J.M.Nelson D.B.Nemes M.Nie G.Nigmatkulov T.Niida L.V.Nogach T.Nonaka A.S.Nunes G.Odyniec A.Ogawa Abilene Christian university AbileneTexas 79699 AGH university of science and technology FPACSCracow 30-059Poland Alikhanov Institute for Theoretical and exp.rimental physics NrC"Kurchatov Institute" Moscow 117218Russia Argonne National Laboratory ArgonneIllinois 60439 American university of Cairo New Cairo 11835New CairoEgypt Brookhaven National Laboratory UptonNew York 11973 university of California BerkeleyCalifornia 94720 university of California DavisCalifornia 95616 university of California Los AngelesCalifornia 90095 university of California RiversideCalifornia 92521 Central china normal university WuhanHubei 430079 university of Illinois at Chicago ChicagoIllinois 60607 Creighton university OmahaNebraska 68178 Czech Technical university in prague FNSPEPrague 11519Czech Republic Technische Universität Darmstadt Darmstadt 64289Germany eLTe eötvös Loránd university BudapestHungary H-1117 Frankfurt Institute for Advanced Studies FIAS Frankfurt 60438Germany Fudan university Shanghai 200433 university of Heidelberg Heidelberg 69120Germany university of Houston HoustonTexas 77204 Huzhou university HuzhouZhejiang 313000 Indian Institute of science education and research(IISer) Berhampur 760010India Indian Institute of science education and research(IISer)Tirupati Tirupati 517507India Indian Institute technology PatnaBihar 801106India Indiana university BloomingtonIndiana 47408 Institute of Modern physics Chinese Academy of SciencesLanzhouGansu 730000 university of Jammu Jammu 180001India Joint Institute for Nuclear research Dubna 141980Russia Kent State university KentOhio 44242 university of Kentucky LexingtonKentucky 40506-0055 Lawrence Berkeley National Laboratory BerkeleyCalifornia 94720 Lehigh university BethlehemPennsylvania 18015 Max-planck-Institut für physik Munich 80805Germany Michigan State university East LansingMichigan 48824 National research Nuclear university MephI Moscow 115409Russia National Institute of science education and research HBNIJatni 752050Indi

High transverse momentum(pT)p.rticle production is sup.ressed owing to the p.rton(jet)energy loss in the hot dense medium created in relativistic heavy-ion *** of energy at low-to-modest pT has been difficult to measure,owing to large anisotropic *** rep.rt a data-driven method for background evaluation and subtraction,exploiting the away-side pseudorapidity gaps,to measure the jetlike correlation shape in Au+Au collisions at √sNN=200 GeV in the STAr *** correlation shapes,for trigger p.rticles pT>3GeV/c and various associated p.rticle pT ranges within 0.5pTeV/c,are consistent with Gaussians,and their widths increase with *** results indicate jet broadening in the medium created in central heavy-ion collisions.

关键词： di-hadron correlations jet heavy-ion

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Methods for a blind analysis of isobar data collected by the STAr collaboration

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Nuclear science and Techniques 2021年第5期32卷 43-50页

作者： J.Adam L.Adamczyk J.r.Adams J.K.Adkins G.Agakishiev M.M.Aggarwal Z.Ahammed I.Alekseev D.M.Anderson A.Ap.rin e.C.Aschenauer M.U.Ashraf F.G.Atetalla A.Attri G.S.Averichev V.Bairathi K.Barish A.Behera r.Bellwied A.Bhasin J.Bielcik J.Bielcikova L.C.Bland I.G.Bordyuzhin J.D.Brandenburg A.V.Brandin J.Butterworth H.Caines M.Calderon de la Barca Sanchez D.Cebra I.Chakaberia p.Chaloupka B.K.Chan F-H.Chang Z.Chang N.Chankova-Bunzarova A.Chatterjee D.Chen J.Chen J.H.Chen X.Chen Z.Chen J.Cheng M.Cherney M.Chevalier S.Choudhury W.Christie X.Chu H.J.Crawford M.Csanad M.Daugherity T.G.Dedovich I.M.Deppner A.A.Derevschikov L.Didenko X.dong J.L.Drachenberg J.C.Dunlop T.edmonds N.elsey J.engelage G.eppley S.esumi O.evdokimov A.ewigleben O.eyser r.Fatemi S.Fazio p.Federic J.Fedorisin C.J.Feng Y.Feng p.Filip e.Finch Y.Fisyak A.Francisco L.Fulek C.A.Gagliardi T.Galatyuk F.Geurts A.Gibson K.Gopal X.Gou D.Grosnick W.Guryn A.I.Hamad A.Hamed S.Harabasz J.W.Harris S.He W.He X.H.He Y.He S.Heppelmann S.Heppelmann N.Herrmann e.Hoffman L.Holub Y.Hong S.Horvat Y.Hu H.Z.Huang S.L.Huang T.Huang X.Huang T.J.Humanic p.Huo G.Igo D.Isenhower W.W.Jacobs C.Jena A.Jentsch Y.Ji J.Jia K.Jiang S.Jowzaee X.Ju e.G.Judd S.Kabana M.L.Kabir S.Kagamaster D.Kalinkin K.Kang D.Kapukchyan K.Kauder H.W.Ke D.Keane A.Kechechyan M.Kelsey Y.V.Khyzhniak D.p.Kikoła C.Kim B.Kimelman D.Kincses T.A.Kinghorn I.Kisel A.Kiselev M.Kocan L.Kochenda L.K.Kosarzewski L.Kramarik p.Kravtsov K.Krueger N.Kulathunga Mudiyanselage L.Kumar S.Kumar r.Kunnawalkam elayavalli J.H.Kwasizur r.Lacey S.Lan J.M.Landgraf J.Lauret A.Lebedev r.Lednicky J.H.Lee Y.H.Leung C.Li C.Li W.Li W.Li X.Li Y.Li Y.Liang r.Licenik T.Lin Y.Lin M.A.Lisa F.Liu H.Liu p.Liu p.Liu T.Liu X.Liu Y.Liu Z.Liu T.Ljubicic W.J.Llope r.S.Longacre N.S.Lukow S.Luo X.Luo G.L.Ma L.Ma r.Ma Y.G.Ma N.Magdy r.Majka D.Mallick S.Margetis C.Markert H.S.Matis J.A.Mazer N.G.Minaev S.Mioduszewski B.Mohanty I.Mooney Z.Moravcova D.A.Morozov M.Nagy J.D.Nam Md.Nasim K.Nayak D.Neff J.M.Nelson D.B.Nemes M.Nie G.Nigmatkulov T.Niida L.V.Nogach T.Nonak Christian university AbileneTX 796992 AGH university of science and technology FPACSCracow 30-059Poland Alikhanov Institute for Theoretical and exp.rimental physics NrC"Kurchatov Institute" MoscowRussia 117218 Argonne National Laboratory ArgonneIL 60439 American university of Cairo New CairoNew Cairo 11835Egypt Brookhaven National Laboratory UptonNY 11973 university of California BerkeleyCA 94720 university of California DavisCA 95616 university of California Los AngelesCA 90095 university of California RiversideCA 92521 Central china normal university Wuhan 430079 university of Illinois at Chicago ChicagoIL 60607 Creighton university OmahaNE 68178 Czech Technical university in prague FNSPEPrague 11519Czech Republic Technische Universitat Darmstadt Darmstadt 64289Germany eLTe eotvos Lorand university Budapest 1117Hungary Frankfurt Institute for Advanced Studies FIAS Frankfurt 60438Germany Fudan university Shanghai 200433 university of Heidelberg 69120 HeidelbergGermany university of Houston HoustonTX 77204 Huzhou university Huzhou 313000 Indian Institute of science education and research(IISer) Berhampur 760010India Indian Institute of science education and research(IISer)Tirupati Tirupati 517507India Indian Institute technology PatnaBihar 801106India Indiana university BloomingtonIN 47408 Institute of Modern physics Chinese Academy of SciencesLanzhou 730000 university of Jammu Jammu 180001India Joint Institute for Nuclear research DubnaRussia 141980 Kent State university KentOH 44242 university of Kentucky LexingtonKY 40506-0055 Lawrence Berkeley National Laboratory BerkeleyCA 94720 Lehigh university BethlehemPA 18015 Max-planck-Institut fur physik 80805 MunichGermany Michigan State university East LansingMI 48824 National research Nuclear university MephI MoscowRussia 115409 National Institute of science education and research HBNIJatni 752050India National Cheng Kung university Tainan 70101 Nuclear physics Institute of the CAS Rez 25068Czech Republic Ohio State university

In 2018,the STAr collaboration collected data from^(96)_(44)ru+^(96)_(44)ru and^(96)_(40)Zr+^(96)_(40)Zr at√^(S)NN=200 Ge V to search for the presence of the chiral magnetic effect in collisions of *** isobar collision species alternated frequently between 9644 ru+^(96)_(44)ru and^(96)_(40)Zr+^(96)_(40)*** order to conduct blind analyses of studies related to the chiral magnetic effect in these isobar data,STAr developed a three-step blind analysis *** are initially provided a"reference sample"of data,comprised of a mix of events from the two species,the order of which respects time-dependent changes in run *** tuning analysis codes and p.rforming time-dependent quality assurance on the reference sample,analysts are provided a species-blind sample suitable for calculating efficiencies and corrections for individual≈30-min data-taking *** this sample,species-specific information is disguised,but individual output files contain data from a single isobar *** run-by-run corrections and code alteration subsequent to these corrections are allowed at this *** these modifications,the"frozen"code is passed over the fully un-blind data,completing the blind *** a check of the feasibility of the blind analysis procedure,analysts completed a"mock data challenge,"analyzing data from Au+Au collisions at√^(S)NN=27 Ge V,collected in *** Au+Au data were prep.red in the same manner intended for the isobar blind *** details of the blind analysis procedure and results from the mock data challenge are presented.

关键词： Blind analysis Chiral magnetic effect Heavy-ion collisions

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温度与溶解态有机磷源对中肋骨条藻生长的影响

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海洋科学 2020年第11期44卷 36-44页

作者：张小华刘东艳中国科学院烟台海岸带研究所海岸环境过程重点实验室山东烟台264003 中国科学院大学北京100049 滨州医学院药学院山东烟台264003 华东师范大学河口与海岸学国家重点实验室上海200241

为探讨温度与溶解态有机磷(Dissolved organic phosphorus,DOp)对浮游植物生长的共同影响,本文以中肋骨条藻为研究对象,选取含有C-O-p键的三磷酸腺苷(Adenosine triphosphate,ATp)、甘油磷酸钠(Sodium glycerophosphate,SG-p)、6-磷酸葡萄糖(Glucose 6-phosphate,G-6-p)和含有C-p键的草甘膦(Glyphosate,G-p)为不同类型的DOp,检测了4种温度条件下(20、23、26、29℃)藻细胞的生长状况以及培养液中总溶解态磷(Total dissolved phosphorus,TDp)、溶解态无机磷(Dissolved inorganic phosphorus,DIp)浓度与藻细胞内碱性磷酸酶(Alkaline phosphatase,Ap)的变化。研究结果表明:含有C-O-p键的ATp、SG-p和G-6-p均能较好地维持中肋骨条藻的生长,并且升温可进一步促进各组藻细胞的生长,最大藻细胞密度分别达到176.7×10^4、218.8×10^4和178×10^4 cell/mL;此外升温还可加速ATp、SG-p和G-6-p组培养液中TDp浓度的下降,以及ATp组培养液中DIp浓度的升高;但各组藻细胞内Ap活性在不同温度条件下均处于较低水平(pNp/(cell·h))。与含有C-O-p键的DOp相比,G-p组的藻细胞在各温度条件下生长密度均较低,最大藻细胞密度仅为40.7×10^4 cell/mL;但其藻细胞内Ap活性显著高于ATp、SG-p和G-6-p组[最高达83 fmol pNp/(cell·h)]且随温度升高而降低。以上结果表明,不同类型DOp会显著影响中肋骨条藻的生长,其中ATp、SG-p和G-6-p能更为有效地被中肋骨条藻生长所利用,并且温度升高(20~29℃)是促进3种DOp条件下中肋骨条藻生长的重要环境因素,但该效应可能并不依赖于Ap活性。

关键词：中肋骨条藻温度生长溶解态有机磷溶解态无机磷碱性磷酸酶

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Number of J/ψ events at BeSIII

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Chinese physics C 2022年第7期46卷 74-84页

作者： M.Ablikim M.N.Achasov p.Adlarson S.Ahmed M.Albrecht r.Aliberti A.Amoroso M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Ferroli I.Balossino Y.Ban K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko r.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov 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 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.Han W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.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.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.Kapp.rt M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kuhn J.J.Lane J.S.Lange p.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li 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.Limphirat C.X.Lin D.X.Lin T.Lin B.J.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu G.M.Liu H.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 energy physics Beijing 100049China Beihang university Beijing 100191China Beijing Institute of petrochemical technology Beijing 102617China Bochum ruhr-university D-44780 BochumGermany Camnegie Mellon university PittsburghPennsylvania 15213USA Central china normal university Wuhan 430079China china Center of Advanced science and technology Beijing 100190China COMSATS university Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan university Shanghai 200443China G.I.Budker Institute of Nuclear physies SBrAS(BINp) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion research GmbH D-64291 DarmstadtGermany Guangxi normal university Guilin 541004China Hangzhou normal university Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan normal university Xinxiang 453007China Henan university of science and technology Luoyang 471003China Henan university of technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan normal university Changsha 410081China Hunan university Changsha 410082China Indian Institute of technology Madras Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di p.rugia I-06100PerugiaItaly university of p.rugia I-06100PerugiaItaly university of Ferrara I-44122FerraraItaly Institute of Modern physics Lanzhou 730000China Institute of physies and technology peace Ave 54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenberg university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen Ⅱ.Physikaliches InstitutHeinricH-Buff-Ring 16D-35392 GiessenGermany Lanzhou university Lnzhou 730000China Liaoning normal university Dalian 116029China Liaoning university Shenyang 110036China Nanjing normal university Nanjing 210023China Nanjing Univ

Using inclusive decays of J/ψ aprecise determination of the number of J/ψ events collected with the BeSIII detector was *** the two data sets taken in 2009 and 2012,the numbers of J/ψ events were recalculated to be(224.0±1.3)×10^(6) and(1088.5±4.4)×10^(6),respectively;these numbers are in good agreement with the previous measurements. For the J/ψ sample taken in 2017-2019,the number of events was determined to be(8774.0±39.4)×10^(6).The total number of J/ψ events collected with the BeSIII detector was determined to be(10087±44)×10^(6),where the uncertainty is dominated by systematic effects,and the statistical uncertainty is negligible.

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

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Measurements of the center-of-mass energies of e^(+)e^(-)collisions at BeSIII

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Chinese physics C 2021年第10期45卷 7-15页

作者： M.Ablikim M.N.Achasov p.Adlarson S.Ahmed M.Albrecht r.Aliberti A.Amoroso M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Ferroli I.Balossino Y.Ban K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko r.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov D.Y.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen X.r.Chen Y.B.Chen Z.J.Chen W.S.Cheng G.Cibinetto F.Cossio X.F.Cui H.L.Dai X.C.Dai A.Dbeyssi r.e.de Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding C.dong J.dong L.Y.dong M.Y.dong X.dong S.X.Du Y.L.Fan J.Fang S.S.Fang Y.Fang r.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng M.Fritsch C.D.Fu Y.Gao Y.Gao Y.Gao Y.G.Gao I.Garzia p.T.Ge C.Geng e.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu Y.T.Gu C.Y Guan A.Q.Guo L.B.Guo r.p.Guo Y.p.Guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris K.L.He F.H.Heinsius C.H.Heinz T.Held Y.K.Heng C.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.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.Kapp.rt M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kuhn J.J.Lane J.S.Lange p.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li J.L.Li J.Q.Li J.S.Li Ke Li L.K.Li Lei Li p.r.Li S.Y.Li W.D.Li W.G.Li X.H.Li X.L.Li 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 energy physics Beijing 100049China Beihang university Beijing 100191China Beijing 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 Fudan university Shanghai 200443China G.I.Budker Institute of Nuclear physics SB rAS(BINp) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion research GmbH D-64291 DarmstadtGermany Guangxi normal university Guilin 541004China Guangxi university Nanning 530004China Hangzhou normal university Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan normal university Xinxiang 453007China Henan university of science and technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan normal university Changsha 410081China Hunan university Changsha 410082China Indian Institute of technology Madras Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly 25Institute of Modern PhysicsLanzhou 730000China Institute of Modern physics Lanzhou 730000China Institute of physics and technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenberg university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikali

During the 2016-17 and 2018-19 running p.riods,the BeSIII exp.riment collected 7.5 fb of e^(+)e^(-)collision data at center-of-mass energies ranging from 4.13 to 4.44 *** data samples are primarily used for the study of excited charmonium and charmoniumlike *** analyzing the di-muon process e^(+)e^(-)→(γISr=FSr)μ^(+)μ^(-),we measure the center-of-mass energies of the data samples with a precision of 0.6 *** a run-by-run study,we find that the center-of-mass energies were stable throughout most of the data-collection p.riod.

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

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Observation of the Y(4230)and a new structure in e^(+)e^(-)→K^(+)K^(-)J/Ψ

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Chinese physics C 2022年第11期46卷 7-21页

作者： M.Ablikim M.N.Achasov p.Adlarson M.Albrecht r.Aliberti A.Amoroso M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko r.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov C.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen T.Chen X.r.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.p.Dai A.Dbeyssi r.ede Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding J.dong L.Y.dong M.Y.dong X.dong S.X.Du p.egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang r.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng K Fischer M.Fritsch C.Fritzsch C.D.Fu H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia p.T.Ge C.Geng e.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco M.H.Gu C.Y Guan A.Q.Guo L.B.Guo r.p.Guo Y.p.Guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.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 K.X.Huang L.Q.Huang L.Q.Huang X.T.Huang Y.p.Huang Z.Huang T.Hussain N Husken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv Q.Ji Q.p.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia H.B.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang r.Kapp.rt M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz p.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kuhn J.J.Lane J.S.Lange p.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li H.N.Li J.Q.Li J.S.Li J.W.Li Ke Li L.J Li L.K.Li Lei Li M.H.Li p.r.Li S.X.Li S.Y.Li T.Li W.D.Li W.G.Li X.H.Li X.L.Li 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.Limphirat C.X.Lin D.X.Lin T.Lin B.J.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu G.M.Liu H.Liu H.M.Liu Huanhuan Liu Huihui Liu J.B.Liu J.L.Liu J.Y.Liu K.Liu K.Y.L Institute of High energy physics Beijing 100049China Beihang university Beijing 100191China Beijing 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 Fudan university Shanghai 200433China G.I.Budker Institute of Nuclear physics SB rAS(BINp) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion research GmbH D-64291 DarmstadtGermany Guangxi normal university Guilin 541004China Hangzhou normal university Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan normal university Xinxiang 453007China Henan university of science and technology Luoyang 471003China Henan university of technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan normal university Changsha 410081China Hunan university Changsha 410082China Indian Institute of technology Madras Chennai 600036India Indiana university BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly Institute of Modern physics Lanzhou 730000China Institute of physics and technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin university Changchun 130012China Johannes Gutenberg university of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The 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 the BeSⅢ detector op.rating at the BepCⅡ storage *** resonant structures are observed in the line shape of the cross *** mass and width of the first structure are measured to be(4225.3±2.3±21.5)MeV and(72.9±6.1±30.8)MeV,*** are consistent with those of the established Y(4230).The second structure is observed for the first time with a statistical significance greater than 8σ,denoted as Y(4500).Its mass 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 the second ones are *** product of the electronic p.rtial width with the decay branching fractionΓ(Y(4230)→e^(+)e^(−))B(Y(4230)→K^(+)K^(−)J/Ψ)is rep.rted.

关键词： Y states charmonium-like states BeSⅢ

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A dynamic range extension system for LHAASOWCDA-1

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radiation Detection technology and Methods 2021年第4期5卷 520-530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 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 Danzengluobu D.della Volpe B.D’ettorre piazzoli X.J.dong J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fang C.F.Feng L.Feng S.H.Feng Y.L.Feng B.Gao C.D.Gao Q.Gao W.Gao M.M.Ge L.S.Geng G.H.Gong Q.B.Gou M.H.Gu J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.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 Y.Huang Z.C.Huang F.Ji X.L.Ji H.Y.Jia K.Jiang Z.J.Jiang C.Jin 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.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.pattarakijwanich Z.Y.pei M.Y.Qi D.ruffolo 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 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.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.zhang H.M.zhang H.Y.zhang J.L.zhang J.W.zhang L.zhang L.zhang L.X.zhang p.F.zhang p.p.zhang r.zhang S.r.zhang S.S.zhang X.zhang X.p.zhang Y.zhang Y.zhang Y.F.zhang Y.L.zhang B.Zhao J.Zhao L.Zhao L.Z.Zhao S.p.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou J.N.Zhou Key Laboratory of p.rticle Astrophyics&exp.rimental physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of sciences Beijing 100049China TIANFU Cosmic ray research Center ChengduSichuanChina State Key Laboratory of p.rticle Detection and electronics BeijingChina university of science and technology of china Hefei 230026AnhuiChina 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 for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina School of physics and Astronomy&School of physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina School of physical science and technology Guangxi UniversityNanning 530004GuangxiChina Hebei normal university Shijiazhuang 050024HebeiChina School of physics and Microelectronics Zhengzhou UniversityZhengzhou 450001HenanChina School of Astronomy and Space science Nanjing UniversityNanjing 210023JiangsuChina Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237ShandongChina Key Laboratory for 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&School of Information science and technology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of physics Sichuan UniversityChengdu 610065SichuanChina Key Laboratory of Cosmic rays(Tibet university) Ministry of EducationLhasa 850000TibetChina School of physics

p.rpose The main scientific goal of LHAASO-WCDA is to survey gamma-ray sources with energy from 100 GeV to 30 *** observe high-energy shower events,especially to measure the energy spectrum of cosmic rays from 100 TeV to 10 peV,a dynamic range extension system(WCDA++)is designed to use a 1.5-inch pMT with a dynamic range of four orders of magnitude for each cell in *** The dynamic range is extended by using these pMTs to measure the effective charge density in the core region of air shower events,which is an imp.rtant p.rameter for identifying the composition of primary *** and Conclusion The system has been running for more than one *** this pap.r,the details of the design and p.rformance of WCDA++are presented.

关键词： LHAASO-WCDA WCDA++ Water Cherenkov detector p.rformance

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p.rformance of LHAASO-WCDA and observation of the Crab Nebula as a standard candle

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Chinese physics C 2021年第8期45卷 166-181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 Danzengluobu D.della Volpe B.D'ettorre piazzoli X.J.dong J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fang C.F.Feng L.Feng S.H.Feng Y.L.Feng B.Gao C.D.Gao Q.Gao W.Gao M.M.Ge L.S.Geng G.H.Gong Q.B.Gou M.H.Gu J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.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.Ji X.L.Ji H.Y.Jia K.Jiang Z.J.Jiang C.Jin 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.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.pattarakijwanich Z.Y.pei M.Y.Qi B.Q.Qiao D.ruffolo 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.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.zhang H.M.zhang H.Y.zhang J.L.zhang J.W.zhang L.zhang L.zhang L.X.zhang p.F.zhang p.p.zhang r.zhang S.r.zhang S.S.zhang X.zhang X.p.zhang Y.zhang Y.zhang Y.F.zhang Y.L.zhang B.Zhao J.Zhao L.Zhao L.Z.Zhao S.p.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou J.N.Zhou Key Laboratory of p.rticle Astrophyics&exp.rimental physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of sciences Beijing 100049China TIANFU Cosmic ray research Center ChengduSichuanChina State Key Laboratory of p.rticle Detection and electronics China university of science and technology of china Hefei 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 for Astrophysics Guangzhou UniversityGuangzhou 510006China School of physics and Astronomy&School of physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519082China School of physical science and technology Guangxi UniversityNanning 530004China Hebei normal university Shijiazhuang 050024China School of physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China School of Astronomy and Space science Nanjing UniversityNanjing 210023China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China Key Laboratory for 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&School of Information science and technology Southwest Jiaotong UniversityChengdu 610031China College of physics Sichuan UniversityChengdu 610065China Key Laboratory of Cosmic rays(Tibet university) Ministry of EducationLhasa 850000China School of physics and technology Wuhan UniversityWuhan 430072China School of physics and Astronomy Yunnan University

The first Water Cherenkov detector of the LHAASO exp.riment(WCDA-1)has been op.rating since April *** data for the first year have been analyzed to test its p.rformance by observing the Crab Nebula as a standard *** WCDA-1 achieves a sensitivity of 65 mCU p.r year,with a statistical threshold of 5 *** accomplish this,a 97.7%cosmic-ray background rejection rate around 1 TeV and 99.8%around 6 TeV with an ap proximate photon acceptance of 50%is achieved after applying an algorithm to sep.rate gamma-induced *** angular resolution is measured using the Crab Nebula as a point source to be ap.roximately 0.45°at 1 TeV and better than 0.2°above 6 TeV,with a pointing accuracy better than 0.05°.These values all match the design *** energy resolution is found to be 33%for gamma rays around 6 *** spectral energy distribution of the Crab Nebula in the range from 500 GeV to 15.8 TeV is measured and found to be in agreement with the results from other TeV gamma ray observatories.

关键词： LHAASO-WCDA Crab Nebula angular resolution spectral energy distribution

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雌激素处理的hBMSC对高糖诱导血管内皮细胞损伤的保护作用

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中国应用生理学杂志 2022年第4期38卷 289-294页

作者：张晓东孙石磊王冠李霄凌姚立杰徐浩张鹏沈雷黑龙江省齐齐哈尔医学院解剖学教研室齐齐哈尔161006 北京市首都医科大学组织胚胎学系北京100069 上海复旦大学基础医学院人体解剖与组织胚胎学系上海200433 黑龙江省齐齐哈尔医学院基础医学院齐齐哈尔161006

目的:探讨雌激素处理人骨髓间充质干细胞(hBMSC)对高糖诱导的人脐静脉血管内皮细胞(HUVeC)损伤的保护作用及机制。方法:采用30 mmol/L葡萄糖刺激hBMSC细胞建立高糖模型并分组:以无刺激者为高糖对照组(HG组)、以20μmol/L雌激素处理者为... 详细信息

目的:探讨雌激素处理人骨髓间充质干细胞(hBMSC)对高糖诱导的人脐静脉血管内皮细胞(HUVeC)损伤的保护作用及机制。方法:采用30 mmol/L葡萄糖刺激hBMSC细胞建立高糖模型并分组:以无刺激者为高糖对照组(HG组)、以20μmol/L雌激素处理者为高糖雌激素组(HG+e2组)、以5μmo/L蛋白激酶B(pKB/Akt)抑制剂Triciribine预处理45 min后,再以20μmol/L雌激素处理者为高糖Akt抑制剂组(HG+e2+Triciribine组)和正常条件培养的hBMSC为正常对照组(NG组)。分别于处理12 h后,采用CCK8法检测各组hBMSC的细胞活力,硝酸还原酶法和eLISA法检测各组培养基上清中NO、VeGF和IL-8的含量(n=6),48 h后采用Western blot检测内皮型一氧化氮合酶(eNOS)和磷酸化eNOS(p-eNOS)蛋白表达水平(n=3)。此外,提取各组hBMSC的培养基上清作为条件培养基(CM)培养人脐静脉血管内皮细胞(HUVeC)并分组为:HG-CM组(HG组条件培养基处理)、HG+e2-CM组(HG+e2组条件培养液处理)、HG+e2+Triciribine-CM组(HG+e2+Triciribine组条件培养基处理)和HG-H组(高糖对照组,30 mmol/L葡萄糖终浓度处理),分别于12 h后,采用CCK8法检测各组HUVeC的细胞活力(n=6),24 h后采用流式细胞术检测各组HUVeC细胞的凋亡率(n=3);48 h后采用划痕实验观察各组HUVeC细胞的迁移率(n=3)。结果:与NG组相比,HG组中hBMSC细胞活力和细胞内eNOS蛋白磷酸化水平降低(peGF和IL-8含量减少(pe2组中hBMSC的细胞活力和细胞中eNOS蛋白磷酸化水平显著增加(peGF和IL-8含量增加(pe2+Triciribine组中上述结果指标呈反向变化(pe2-CM组中HUVeCs的细胞活力和迁移能力显著增加(ppe2-CM组相比,HG+e2+Triciribine-CM组中HUVeCs的细胞活力和迁移能力降低(ppeNOS信号通路,促进NO、VeGF和IL-8的分泌,进而增加HUVeCs的细胞活力和迁移能力,并抑制细胞凋亡的发生,对高糖诱导的HUVeCs细胞损伤发挥保护作用。

关键词：雌激素人骨髓间充质干细胞细胞损伤高糖条件人脐静脉血管内皮细胞,细胞培养

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Luminosities and energies of e^(+)e^(−) collision data taken between √s=4.61 GeV and 4.95 GeV at BeSⅢ

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Chinese physics C 2022年第11期46卷 64-75页

From December 2019 to June 2021,the BeSⅢ exp.riment collected ap.roximately 5.85 fb^(−1) of data at center-of-mass energies between 4.61 and 4.95 *** is the highest collision energy BepCⅡ has reached to *** accumulated e^(+)e^(−) annihilation data samples are useful for studying charmonium(-like)states and charmed-hadron *** adopting a novel method of analyzing the production of A_(c)^(+)A_(c)^(-) pairs in e^(+)e^(−) annihilation,the center-of-mass energies are measured with a precision of 0.6 *** luminosities are measured with a precision of better than 1% by analyzing the events of large-angle Bhabha *** measurements provide imp.rtant inputs to analyses based on these data samples.

关键词： luminosity center-of-mass energy BeSⅢdetector

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