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search for the rare decays w^(+)→D_(s)^(+)γ and Z→D^(0)γ at lhcb

中国物理c:英文版 2023年第9期47卷 14-26页

作者： R.Aaij A.s.w.Abdelmotteleb c.Abellan beteta F.Abudinén T.Ackernley b.Adeva M.Adinolfi p.Adlarson h.Afsharnia c.Agapopoulou c.A.Aidala Z.Ajaltouni s.Akar K.Akiba j.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche p.Alvarez cartelle R.Amalric s.Amato j.l.Amey Y.Amhis l.An l.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni b.Audurier s.bachmann M.bachmayer j.j.back A.bailly-reyre p.baladron Rodriguez V.balagura w.baldini j.baptista de souza leite M.barbetti R.j.barlow s.barsuk w.barter M.bartolini F.baryshnikov j.M.basels G.bassi b.batsukh A.battig A.bay A.beck M.becker F.bedeschi I.b.bediaga A.beiter V.belavin s.belin V.bellee K.belous I.belov I.belyaev G.benane G.bencivenni E.ben-haim A.berezhnoy *** *** Andres D.berninghoff h.c.bernstein c.bertella A.bertolin c.betancourt F.betti Ia.bezshyiko s.bhasin j.bhom l.bian M.s.bieker N.V.biesuz s.bifani p.billoir A.biolchini M.birch F.c.R.bishop A.bitadze A.bizzeti M.p.blago T.blake F.blanc j.E.blank s.blusk D.bobulska j.A.boelhauve O.boente Garcia T.boettcher A.boldyrev c.s.bolognani R.bolzonella N.bondar F.borgato s.borghi M.borsato j.T.borsuk s.A.bouchiba T.j.V.bowcock A.boyer c.bozzi M.j.bradley s.braun A.brea Rodriguez j.brodzicka A.brossa Gonzalo j.brown D.brundu A.buonaura l.buonincontri A.T.burke c.burr A.bursche A.butkevich j.s.butter j.buytaert w.byczynski s.cadeddu h.cai R.calabrese l.calefice s.cali R.calladine M.calvi M.calvo Gomez p.campana D.h.campora perez A.F.campoverde quezada s.capelli l.capriotti A.carbone G.carboni R.cardinale A.cardini p.carniti l.carus A.casais Vidal R.caspary G.casse M.cattaneo G.cavallero V.cavallini s.celani j.cerasoli D.cervenkov A.j.chadwick M.G.chapman M.charles ph.charpentier c.A.chavez barajas M.chefdeville c.chen s.chen A.chernov s.chernyshenko V.chobanova s.cholak M.chrzaszcz A.chubykin V.chulikov p.ciambrone M.F.cicala x.cid Vidal G.ciezarek G.ciullo p.E.l.clarke M.clemencic h.V.cliff j.closier j.l.cobbledick V.coco j.A.b.coelho j.cogan E.cognera centro brasileiro de pesquisas Físicas(cbpF) Rio de JaneiroBrazil Universidade Federal do Rio de janeiro(UFRj) Rio de JaneiroBrazil center for high Energy physics Tsinghua UniversityBeijingChina Institute Of high Energy physics(IhEp) BeijingChina school of physics state Key laboratory of Nuclear physics and Technology Peking UniversityBeijingChina University of chinese Academy of sciences BeijingChina Institute of particle physics Central China Normal UniversityWuhanHubeiChina Université savoie Mont blanc CNRSIN2P3-LAPPAnnecyFrance Universitéclermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Universitéparis-saclay CNRS/IN2P3IJCLabOrsayFrance laboratoire leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance lpNhE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.physikalisches Institut RWTH Aachen UniversityAachenGermany Fakultat physik Technische Universitat DortmundDortmundGermany Max-planck-Institut für Kernphysik(MpIK) HeidelbergGermany physikalisches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany school of physics University College DublinDublinIreland INFN sezione di bari BariItaly INFN sezione di bologna BolognaItaly INFN sezione di Ferrara FerraraItaly INFN sezione di Firenze FirenzeItaly INFN laboratori Nazionali di Frascati FrascatiItaly INFN sezione di Genova GenovaItaly INFN sezione di Milano MilanoItaly INFN sezione di Milano-bicocca MilanoItaly INFN sezione di cagliari MonserratoItaly Universitàdegli studi di padova Universitàe INFNPadovaPadovaItaly INFN sezione di pisa PisaItaly INFN sezione di Roma la sapienza RomaItaly INFN sezione di Roma Tor Vergata RomaItaly Nikhef National Institute for subatomic physics AmsterdamNetherlands Nikhef National Institute for subatomic physics and VU University Amsterdam AmsterdamNetherlands AGh-University of science and Technology Faculty of Physics and Applied Computer Scienc

A search for the rare decays w^(+)→D_(s)^(+)γ and Z→D0γis performed using proton-proton collision data collected by the lhcb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity of 2.0fb−*** significant signal is observed for either decay mode and upper limits on their branching fractions are set using w^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normalization *** upper limits are 6.5×10^(−4) and 2.1×10^(−3) at 95% confidence level for the w^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,*** is the first reported search for the Z→D^(0)γ decay,while the upper limit on the w+→D+sγbranching fraction improves upon the previous best limit.

关键词： w/Z boson rare decay upper limit of branching fraction

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Future physics programme of bEsⅢ

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

作者： M.Ablikim M.N.Achasov p.Adlarson s.Ahmed M.Albrecht M.Alekseev A.Amoroso F.F.An q.An Y.bai O.bakina R.baldini Ferroli Y.ban K.begzsuren j.V.bennett N.berger M.bertani D.bettoni F.bianchi j biernat j.bloms I.boyko R.A.briere l.calibbi h.cai x.cai A.calcaterra G.F.cao N.cao s.A.cetin j.chai j.F.chang w.l.chang j.charles G.chelkov chen G.chen h.s.chen j.c.chen M.l.chen s.j.chen Y.b.chen h.Y.cheng w.cheng G.cibinetto F.cossio x.F.cui h.l.Dai j.p.Dai x.c.Dai A.Dbeyssi D.Dedovich Z.Y.Deng A.Denig Denysenko M.Destefanis s.Descotes-Genon F.De Mori Y.Ding c.Dong j.Dong l.Y.Dong M.Y.Dong Z.l.Dou s.x.Du s.I.Eidelman j.Z.Fan j.Fang s.s.Fang Y.Fang R.Farinelli l.Fava F.Feldbauer G.Felici c.q.Feng M.Fritsch c.D.Fu Y.Fu q.Gao x.l.Gao Y.Gao Y.Gao Y.G.Gao Z.Gao b.Garillon I.Garzia E.M.Gersabeck A.Gilman K.Goetzen l.Gong w.x.Gong w.Gradl M.Greco l.M.Gu M.h.Gu Y.T.Gu A.q.Guo F.K.Guo l.b.Guo R.p.Guo Y.p.Guo A.Guskov s.han x.q.hao F.A.harris K.l.he F.h.heinsius T.held Y.K.heng Y.R.hou Z.l.hou h.M.hu j.F.hu T.hu Y.hu G.s.huang j.s.huang x.T.huang x.Z.huang Z.l.huang N.huesken T.hussain w.Ikegami Andersson w.Imoehl M.Irshad q.ji q.p.ji x.b.ji x.l.ji h.l.jiang x.s.jiang x.Y.jiang j.b.jiao Z.jiao D.p.jin s.jin Y.jin T.johansson N.Kalantar-Nayestanaki x.s.Kang R.Kappert M.Kavatsyuk b.c.Ke I.K.Keshk T.Khan A.Khoukaz p.Kiese R.Kiuchi R.Kliemt l.Koch O.b.Kolcu b.Kopf M.Kuemmel M.Kuessner A.Kupsc M.Kurth M.G.Kurth w.Kuhn j.s.lange p.larin l.lavezzi h.leithoff T.lenz c.li cheng li D.M.li F.li F.Y.li G.li h.b.li h.j.li j.c.li j.w.li Ke li l.K.li lei li p.l.li p.R.li q.Y.li w.D.li w.G.li x.h.li x.l.li x.N.li x.q.li Z.b.li h.liang h.liang Y.F.liang Y.T.liang G.R.liao l.Z.liao j.libby c.x.lin D.x.lin Y.j.lin b.liu b.j.liu c.x.liu D.liu D.Y.liu F.h.liu Fang liu Feng liu h.b.liu h.M.liu huanhuan liu huihui liu j.b.liu j.Y.liu K.Y.liu Ke liu q.liu s.b.liu T.liu x.liu x.Y.liu Y.b.liu Z.A.liu Zhiqing liu Y.F.long x.c.lou h.j.lu j.D.lu j.G.lu Y.lu Y.p.lu c.l.luo M.x.luo p.w.luo T.luo x.l.luo s.lusso x.R.lyu F.c.Ma h.l.Ma l.l.Ma M.M.Ma q.M.Ma x.N.Ma x.x. Institute of high Energy physics Beijing 100049China beihang University Beijing 100191China beijing Institute of 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 Johann-Joachim-Becher-Weg 45D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University of science and Technology Luoyang 471003China huangshan college Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN laboratori Nazionali di Frascati I-00044FrascatiItaly INFN sezione di Ferrara I-44122FerraraItaly Institute of physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-cART University of GroningenNL-9747 AA GroningenThe Netherlands lanzhou University Lanzhou 730000China liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China peking University Beijing 100871China shandong University Jinan 250100China shanghai

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

关键词： meson hadron optimization

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Octupole Deformation and signature Inversion in ^(145)ba

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chinese physics letters 1999年第10期16卷 715-717页

作者：朱胜江萨哈伊 j.h.hamilton A.V.Ramayya 甘翠云朱凌燕杨利明龙桂鲁朴秀日 b.R.s.babu j.K.hwang w.c.Ma j.Komicki x.q.zhang E.F.jones j.D.cole R.Aryaeinejad M.w.Drigert j.O.Rasmussen M.A.stoyer s.Y.chu K.E.Gregorich M.F.Mohar s.G.prussin I.Y.lee Yu.Ts.Oganessian M.Ter-Akopian A.V.Daniel Department of physics Tsinghua UniversityBeijing 100084 Department of physics Vanderbilt UniversityNashvilleTN 37235USA Department of physics Mississippi State UniversityMS 39762USA Idaho National Engineering laboratory Idaho FallsID 83415USA lawrence berkeley laboratory BerkeleyCA 94720USA joint Institute for Nuclear Research Dubna 141980Russia

high spin states in neutron-rich odd-N ^(145)ba nucleus have been investigated from study of promptγ-rays in spontaneous fission of^(252)*** alternating parity bands are identified indicating octupole deformation with simplex quantum number s=-*** ground state band shows signature splitting and inversion at low *** collective band structures exhibit the competition and co-existence between symmetric and asymmetric shapes.

关键词： Inversion collective signature

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

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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.Aparin 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 Experimental 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)particle production is suppressed owing to the parton(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 *** report 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 particles pT>3GeV/c and various associated particle pT ranges within 0.5pTc,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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performance 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 阿西克古白立新白云翔包逸炜 D.bastieri 毕效军毕玉江蔡浩蔡金庭曹臻曹喆常进常劲帆常潇川陈宝民陈建陈良陈亮陈龙陈明君陈玛丽陈起辉陈素弘陈松战陈天禄陈秀林陈阳程宁程辉东崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe b.D'Ettorre piazzoli 董湘军樊军辉范一中范志香方军方堃冯存峰封莉冯少辉冯有亮高博高川东高启高卫葛茂茂耿利斯龚光华苟全补顾旻皓郭俊广郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何坚承何思乐何新波何钰 M.heller 贺远强侯超侯贤胡红波胡森胡世聪呼晓军黄代绘黄秋兰黄文昊黄性涛黄志成纪方季筱璐贾焕玉江琨姜泽军靳超 D.Kuleshov K.levochkin 李兵兵李骢李澄李飞李海波李会财李华阳李捷李凯李文龙李昕李新李秀荣李尧李一卓李哲徐卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘佳松刘金艳刘茂元柳若愚刘四明刘伟刘以农刘彰兴龙文杰鲁睿吕洪魁马伯强马玲玲马欣华毛基荣 A.Masood w.Mitthumsiri T.Montamli 南云程庞彬宇 p.pattarakijwanich 裴致远齐孟尧 b.q.qiao D.Ruffolo V.Rulev A.saiz 邵琅 O.shchegolev 盛祥东石京燕宋慧超 Yu.V.stenkin V.stepanov 孙秦宁孙晓娜孙志斌谭柏轩唐泽波田文武王博东王超王辉王洪光王建成王界双王利苹王玲玉王润娜王为王伟王祥高王晓洁王祥玉王玉东王岩谨王亚平王铮王振王忠海王仲翔韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴文雄吴雪峰席邵强夏捷夏君集项光漫肖刚肖胡兵辛广广辛玉良邢祎徐东莲徐仁新薛良闫大海杨朝文杨冯帆杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强曾厚敦曾婷轩曾玮曾宗康查敏翟徐徐张彬彬张海明张恒英张建立张进文张力张路张丽霞张鹏飞张佩佩张瑞张少如张寿山张潇张笑鹏张毅张盈张云峰张月雷赵兵赵静赵雷赵立志赵世平郑福郑应周斌周浩周佳能周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 Key laboratory of particle Astrophyics&Experimental physics Division&computing center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic Ray Research center ChengduSichuanChina state Key laboratory of particle 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 experiment(wcDA-1)has been operating since April *** data for the first year have been analyzed to test its performance by observing the crab Nebula as a standard *** wcDA-1 achieves a sensitivity of 65 mcU per 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 separate gamma-induced *** angular resolution is measured using the crab Nebula as a point source to be approximately 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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prospects for a multi-TeV gamma-ray sky survey with the lhAAsO water cherenkov detector array

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chinese physics c 2020年第6期44卷 123-132页

作者： F.Aharonian V.Alekseenko 安琪 Axikegu 白立新包逸炜 D.bastieri 毕效军蔡浩曹喆曹臻常进常劲帆常潇川赵世平陈宝民陈建陈良陈亮陈玛丽陈明君陈起辉陈素弘陈松战陈天禄陈秀林陈阳程宁程耀东崔树旺崔晓红崔昱东 b.Z.Dai h.l.Dai Z.G.Dai Danzengluobu b.D'Ettorre piazzoli j.Fang 樊军辉范一中冯存峰冯莉冯少辉冯有亮高博高启高卫葛茂茂耿利斯龚光华苟全补顾旻皓郭义庆郭莹莹韩毅昂何会海何坚承 M.heller 何思乐何钰侯超黄代绘黄秋兰黄文昊黄性涛胡红波胡森贾焕玉江琨纪方靳超季筱璐 K.levochkin 梁恩维梁云峰李澄李骢李飞李辉李海波李会财李鸿明李捷李凯李文龙李新李秀荣李尧李哲黎卓刘冰刘成刘栋刘海东刘虎刘佳刘金艳刘茂元刘若愚刘四明刘伟刘以农刘彰兴龙文杰鲁睿吕洪魁马伯强马玲玲毛基荣 A.Masood 马欣华 w.Mitthumsiri T.Montaruli 南云程 p.pattarakijwanich 裴致远乔冰强齐孟尧 D.Ruffolo V.Rulev A.sáiz 邵琅 O.shchegolev 盛祥东石京燕 Y.stenkin V.stepanov 孙志斌谭柏轩唐泽波田文武 D.D.Volpe 王超王辉王洪光王建成王玲玉王为王伟王祥高王祥玉王晓洁王玉东王岩瑾王润娜王亚平王铮王忠海王仲翔韦大明魏俊杰文涛吴超勇吴含荣武莎吴文雄吴雪峰项光漫肖刚辛广广邢祎徐仁新薛良闫大海杨朝文杨冯帆杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇袁强于艳红姜泽军曾厚敦曾婷轩曾玮曾宗康查敏张彬彬张海明张恒英张建立张进文张力张鹏飞张佩佩张少如张寿山张潇张笑鹏张毅张勇张云峰赵兵赵静赵雷赵立志郑福郑应周佳能周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 Institute of high Energy physics Chinese Academy of SciencesBeijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic Ray Research center ChengduShichuanChina University of science and Technology of china 230026 HefeiAnhuiChina Tsinghua University 100084 BeijingChina National Astronomical Observatories Chinese Academy of Sciences100101 BeijingChina National space science center Chinese Academy of Sciences100190 BeijingChina school of physics Peking University100871 BeijingChina center for Astrophysics Guangzhou University510006 GuangzhouGuangdongChina sun Yat-sen University 519000 ZhuhaiGuangdongChina shool of physics and Technology Guangxi University530004 NanningGuangxiChina hebei Normal University 050024 ShijiazhuangHebeiChina school of physics and Engineering Zhengzhou University450001 ZhengzhouHenanChina Nanjing University 210023 NanjingJiangsuChina Key laboratory of Dark Matter and space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210034 NanjingJiangsuChina Institute of Frontier and Interdisciplinary science Shandong University266237 QingdaoShandongChina shanghai Astronomical Observatory Chinese Academy of Sciences200030 ShanghaiChina school of physical science and Technology Southwest Jiaotong University610031 ChengduSichuanChina sichuan University 610065 ChengduSichuanChina Key laboratory of cosmic Rays(Tibet University) Ministry of Education850000 LhasaTibetChina school of physics and technology Wuhan university430072 WuhanChina Yunnan University 650091 KunmingYunnanChina Yunnan Astronomical Observatories Chinese Academy of Sciences650216 KunmingYunnanChina Institute for Nuclear Research Russian Academy of SciencesMoscowRussia Département de physique Nucléaire et corpusculaire Facultéde SciencesUniversitéde GenéveGenevaSwitzerland Department of physics Faculty of ScienceMahidol UniversityBangkokThailand Dublin Institute for Advanced studies 31 Fitzwilliam PlaceDublin 2Ireland Max-planc

The water cherenkov Detector Array(wcDA) is a major component of the large high Altitude Air shower Array Observatory(lhAAsO), a new generation cosmic-ray experiment with unprecedented sensitivity, currently under construction. wcDA is aimed at the study of TeV γ-rays. In order to evaluate the prospects of searching for TeV γ-ray sources with wcDA, we present a projection of the one-year sensitivity of wcDA to TeV γ-ray sources from TeVcat using an all-sky approach. Out of 128 TeVcat sources observable by wcDA up to a zenith angle of 45°, we estimate that 42 would be detectable in one year of observations at a median energy of 1 TeV. Most of them are Galactic sources, and the extragalactic sources are Active Galactic Nuclei(AGN).

关键词： TeVγ-ray astronomy observational prospect lhAAsO-wcDA

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Identification of a functional 339 bp Alu insertion polymorphism in the schizophrenia-associated locus at 10q24.32

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Zoological Research 2020年第1期41卷 84-89页

作者： hi-hui yang xin cai Na qu li-juan Zhao bao-liang Zhong shu-Fang zhang jing chen bin xia hong-Yan jiang Dan-yang Zhou wei-peng liu hong chang xiao xiao Yi li Ming li Key laboratory of Animal Models and human Disease Mechanisms of the chinese Academy of sciences and Yunnan province Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Kunming college of life science University of Chinese Academy of SciencesKunmingYunnan 650223China Affiliated wuhan Mental health center Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430012China Research center for psychological and health sciences China University of GeosciencesWuhanHubei 430012China Department of psychiatry First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650032China center for Excellence in brain science and Intelligence Technology Chinese Academy of SciencesShanghai 200031China

Genome-wide association studies(GwAs)have identified multiple single nucleotide polymorphisms(sNps)or small indels robustly associated with schizophrenia;however,the functional risk variations remain largely *** investigated the 10q24.32 locus and discovered a 339 bp Alu insertion polymorphism(rs71389983)in complete linkage disequilibrium(lD)with the schizophrenia GwAs risk variant *** presence of the Alu insertion at rs71389983 strongly repressed transcriptional activities in in vitro luciferase *** polymorphism may be a target for future mechanistic *** study also underlines the importance and necessity of considering previously underestimated Alu polymorphisms in future genetic studies of schizophrenia.

关键词： schizophrenia insertion functional

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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：麦迪娜 M.N.Achasov p.Adlarson s.Ahmed M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白旭红白羽 O.bakina R.baldini Ferroli I.balossino 班勇 K.begzsuren N.berger M.bertani D.bettoni F.bianchi j.bloms A.bortone I.boyko R.A.briere 蔡浩蔡啸 A.calcaterra 曹国富曹宁 s.A.cetin 常劲帆常万玲 G.chelkov 陈刚陈和生陈玛丽陈申见陈旭荣陈元柏陈卓俊成伟帅 G.cibinetto F.cossio 催佳佳崔小非代洪亮代建平戴鑫琛 A.Dbeyssi R.E.de boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇董超董静董燎原董明义董翔杜书先 p.Egorov 范玉兰方建房双世方易 R.Farinelli l.Fava F.Feldbauer G.Felici 封常青冯俊华 M.Fritsch 傅成栋高扬高原宁高原宁 I.Garzia 葛潘婷耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 w.Gradl M.Greco 谷立民顾旻皓关春懿郭爱强郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩婷婷韩文颖郝喜庆 F.A.harris 何凯凯何康林 F.h.heinsius c.h.heinz 衡月昆 c.herold M.himmelreich T.holtmann 侯国一侯颖锐侯治龙胡海明胡继峰胡涛胡誉黄光顺黄麟钦黄性涛黄燕萍黄震 T.hussain N husken w.Ikegami Andersson w.Imoehl M.Irshad s.jaeger s.janchiv 纪全姬清平季晓斌季筱璐吉钰瑶姜侯兵江晓山焦健斌焦铮金山金毅荆茂强 T.johansson N.Kalantar-Nayestanaki 康晓坤 R.Kappert M.Kavatsyuk 柯百谦 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 雷裤弘 h.leithoff M.lellmann T.lenz 李翠李春花李澄李德民李飞李刚李慧李贺李海波李惠静李衡讷李井文 j.q.li 李静舒李科李龙科李蕾李培荣栗帅迎李卫东李卫国李旭红李晓玲李晓宇李紫源梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 j.libby A.limphirat 林创新林德旭 T.lin 刘北江刘春秀刘栋刘福虎刘芳刘峰 G.M.liu 刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘美宏刘佩莲刘倩刘淇刘树彬刘桐刘桐刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江陆嘉达吕军光陆小玲卢宇卢云鹏罗成林罗民兴罗朋威罗涛罗小兰吕晓睿马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马新鑫马晓妍马尧 F.E.Maas M.Maggiora s.Maldaner s.Malde q.A.Malik A.Mangoni 冒亚军毛泽普 s.Marcello 孟召霞 j.G.Messchendorp G.Mezzadri 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi h.Muramatsu s.Nakhoul Y.Nefedov F.Nerling I.b.Nikolaev 宁哲 s.Nisar s.l.Olsen 欧阳群 s.pacetti 潘祥潘越 A.pathak A.pathak p.patteri M.pelizaeus 彭海平 K.peters j.pettersson 平加伦平荣刚 s.plura s.pogodin R.poling V.prasad 齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.h.Rashid K.Ravindran c.F.Redmer A.Rivetti V.Rodin M.Rolo 荣刚 ch.Rosner M.Rump 桑昊榆 A.sarantsev Y.schelhaas c.schnie 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 perugia I-06100PerugiaItaly University of perugia 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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Flux variations of cosmic ray air showers detected by lhAAsO-KM2A during a thunderstorm on june 10,2021

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chinese physics c 2023年第1期47卷 193-203页

作者： F.Aharonian 安琪阿西克古白立新白云翔包逸炜 D.bastieri 毕效军毕玉江蔡金庭曹喆曹臻常进常劲帆陈恩生陈良陈亮陈龙陈明君陈玛丽陈素弘陈松战陈天禄陈学健陈阳程皓麟程宁程耀东崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 段凯凯樊军辉范一中范志香方军方堃冯存峰封莉冯少辉丰晓婷冯有亮高博高川东高林青高启高卫高伟康葛茂茂耿利斯龚光华苟全补顾旻皓郭福来郭俊广郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何思乐何新波何钰 M.heller 贺远强侯超侯贤胡红波胡铨胡森胡世聪呼晓军黄代绘黄文昊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜泽军金敏康明铭柯通 D.Kuleshov 李兵兵李澄李骢李飞李海波李会财李华阳李军李剑李捷李凯李文龙李秀荣李昕李新李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘佳松刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农龙文杰鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣 A.Masood 闵振 w.Mitthumsiri 南云程区子维庞彬宇 p.pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.sáiz 邵澄宇邵琅 O.shchegolev 盛祥东石京燕宋慧超 Yu.V.stenkin V.stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐泽波田文武王博东王超王辉王洪光王建成王界双王利苹王玲玉王冉王润娜王为王祥高王祥玉王阳王玉东王岩谨王亚平王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁新薛良闫大海颜景志杨朝文杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮曾宗康查敏翟徐徐张彬彬张丰张海明张恒英张建立张丽霞张力张路张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张月雷张毅张勇赵兵赵静赵雷赵立志赵世平郑福郑应周斌周浩周佳能周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 Key laboratory of particle Astrophyics&Experimental physics Division&computing center of sciences Beijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic Ray Research center ChengduSichuanChina Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland Max-planck-Institut for Nuclear physics P.O.Box 10398069029 HeidelbergGermany state Key laboratory of particle Detection and Electronics China University of science and Technology of china Hefei 230026China school of physical science and Technology&school of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China college of physics Sichuan UniversityChengdu 610065China school of Astronomy and space science Nanjing UniversityNanjing 210023China center for Astrophysics Guangzhou UniversityGuangzhou 510006China Key laboratory of Dark Matter and space Astronomy&Key laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Key laboratory for Research in Galaxies and cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key laboratory of cosmic Rays(Tibet University) Ministry of Education850000 LhasaTibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China hebei Normal University Shijiazhuang 050024China school of physics and Astronomy(Zhuhai)&school of physics(Guangzhou)&sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen University519000 Zhuhai&510275 GuangzhouGuangdongChina Dipartimento di Fisica dell’Universitàdi Napoli"Federico II" Complesso Universitario di Monte Sant’Angelovia Cinthia80126 NapoliItaly school of physics and Astronomy Yunnan UniversityKunming 650091China D´epartement de physique Nucléaire et corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China Depar

The large high Altitude Air shower Observatory(lhAAsO)has three sub-arrays,KM2A,wcDA,and *** flux variations of cosmic ray air showers were studied by analyzing the KM2A data during a thunderstorm on june 10,*** number of shower events that meet the trigger conditions increases significantly in atmospheric electric fields,with a maximum fractional increase of 20%.The variations in trigger rates(increases or decreases)were found to be strongly dependent on the primary zenith *** flux of secondary particles increased significantly,following a trend similar to that of shower *** better understand the observed behavior,Monte carlo simulations were performed with cORsIKA and G4KM2A(a code based on GEANT4).we found that the experimental data(in saturated negative fields)were in good agreement with the simulations,assuming the presence of a uniform electric field of-700 V/cm with a thickness of 1500 m in the atmosphere above the observation *** to the acceleration/deceleration by the atmospheric electric field,the number of secondary particles with energy above the detector threshold was modified,resulting in the changes in shower detection rate.

关键词： thunderstorm cosmic rays extensive air showers lhAAsO-KM2A

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