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Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle Ⅱ experiment

Chinese Physics C 2025年第1期49卷 7-18页

作者： I.Adachi L.Aggarwal H.Ahmed J.K.Ahn H.Aihara N.Akopov A.Aloisio N.Althubiti N.Anh Ky D.M.Asner H.Atmacan T.Aushev V.Aushev M.Aversano R.Ayad V.Babu H.Bae S.Bahinipati P.Bambade Sw.Banerjee M.Barrett J.Baudot A.Baur A.Beaubien F.Becherer J.Becker J.V.Bennett F.U.Bernlochner V.Bertacchi M.Bertemes E.Bertholet M.Bessner S.Bettarini B.Bhuyan F.Bianchi L.Bierwirth T.Bilka D.Biswas A.Bobrov D.Bodrov J.Borah A.Boschetti A.Bozek P.Branchini T.E.Browder A.Budano S.Bussino Q.Campagna M.Campajola L.Cao G.Casarosa C.Cecchi J.Cerasoli M.-C.Chang P.Chang R.Cheaib P.Cheema B.G.Cheon K.Chilikin K.Chirapatpimol H.-E.Cho K.Cho S.-J.Cho S.-K.Choi S.Choudhury J.Cochran L.Corona J.X.Cui S.Das E.De La Cruz-Burelo S.A.De La Motte G.de Marino G.De Nardo G.De Pietro R.de Sangro M.Destefanis S.Dey R.Dhamija A.Di Canto F.Di Capua J.Dingfelder Z.Doležal I.Domínguez Jiménez T.V.Dong K.Dort D.Dossett S.dubey K.Dugic G.Dujany P.Ecker D.Epifanov J.Eppelt P.Feichtinger T.Ferber T.Fillinger C.Finck G.Finocchiaro A.Fodor F.Forti A.Frey B.G.Fulsom A.Gabrielli E.Ganiev M.Garcia-Hernandez R.Garg G.Gaudino V.Gaur A.Gaz A.Gellrich G.Ghevondyan D.Ghosh H.Ghumaryan G.Giakoustidis R.Giordano A.Giri P.Gironella B.Gobbo R.Godang O.Gogota P.Goldenzweig W.Gradl E.Graziani D.Greenwald Z.Gruberová T.Gu K.Gudkova I.Haide S.Halder Y.Han K.Hara T.Hara C.Harris K.Hayasaka H.Hayashii S.Hazra C.Hearty M.T.Hedges A.Heidelbach I.Heredia de la Cruz M.Hernández Villanueva T.Higuchi M.Hoek M.Hohmann R.Hoppe P.Horak C.-L.Hsu T.Humair T.Iijima K.Inami N.Ipsita A.Ishikawa R.Itoh M.Iwasaki W.W.Jacobs D.E.Jaffe E.-J.Jang Q.P.Ji S.Jia Y.Jin A.Johnson K.K.Joo H.Junkerkalefeld M.Kaleta D.Kalita J.Kandra K.H.Kang G.Karyan T.Kawasaki F.Keil C.Kiesling C.-H.Kim D.Y.Kim J.-Y.Kim K.-H.Kim Y.-K.Kim Y.J.Kim H.Kindo K.Kinoshita P.Kodyš T.Koga S.Kohani K.Kojima A.Korobov S.Korpar E.Kovalenko R.Kowalewski P.Križan P.Krokovny T.Kuhr R.Kumar K.Kumara A.Kuzmin Y.-J.Kwon S.Lacaprara Y.-T.Lai K.Lalwani T.Lam L.Lanceri J.S.Lange M.Laurenza K.Lautenbach R.Leboucher M.J.Lee C.Lemettais P.Leo D.Lev 不详

series of data samples was collected with the Belle Ⅱ detector at the SuperKEKB collider from March 2019 to June *** determine the integrated luminosities of these data samples using three distinct methodologies involving Bhabha(e^(+)e^(-)→e^(+)e^(-)(ny),digamma(e^(+)e^(-)→γγ(nγ),and dimuon(e^(+)e^(-)→μ^(+)μ^(-)(nγ)*** total integrated luminosity obtained with Bhabha,digamma,and dimuon events is(426.88±0.03±2.61)fb^(-1),(429.28±0.03±2.62)fb^(-1),and(423.99±0.04±3.83)fb^(-1),where the first uncertainties are statistical and the second are *** resulting total integrated luminosity obtained from the combination of the three methods is(427.87±2.01)fb^(-1).

关键词： integrated luminosity Bhabha digamma dimuon BelleⅡ

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Measurement of the integrated luminosity of the Phase 2 data of the Belle Ⅱ experiment

引用

Chinese Physics C 2020年第2期44卷 1-12页

作者： F.Abudinén I.Adachi P.Ahlburg H.Aihara N.Akopov A.Aloisio F.Ameli L.Andricek N.Anh Ky D.M.Asner H.Atmacan T.Aushev V.Aushev T.Aziz K.Azmi V.Babu S.Baehr S.Bahinipati A.M.Bakich P.Bambade Sw.Banerjee S.Bansal V.Bansal M.Barrett J.Baudot A.Beaulieu J.Becker P.K.Behera J.V.Bennett E.Bernieri F.U.Bernlochner M.Bertemes M.Bessner S.Bettarini V.Bhardwaj F.Bianchi T.Bilka S.Bilokin D.Biswas G.Bonvicini A.Bozek M.Bračko P.Branchini N.Braun T.E.Browder A.Budano S.Bussino M.Campajola L.Cao G.Casarosa C.Cecchi D.Červenkov M.-C.Chang P.Chang R.Cheaib V.Chekelian Y.Q.Chen Y.-T.Chen B.G.Cheon K.Chilikin H.-E.Cho K.Cho S.Cho S.-K.Choi S.Choudhury D.Cinabro L.Corona L.M.Cremaldi S.Cunliffe T.Czank F.Dattola E.De La Cruz-Burelo G.De Nardo M.De Nuccio G.De Pietro R.de Sangro M.Destefanis S.Dey A.De Yta-Hernandez F.Di Capua S.Di Carlo J.Dingfelder Z.Doležal I.Domínguez Jiménez T.V.Dong K.Dort S.dubey S.Duell S.Eidelman M.Eliachevitch T.Ferber D.Ferlewicz G.Finocchiaro S.Fiore A.Fodor F.Forti A.Frey B.G.Fulsom M.Gabriel E.Ganiev M.Garcia-Hernandez R.Garg A.Garmash V.Gaur A.Gaz U.Gebauer A.Gellrich J.Gemmler T.Geßler R.Giordano A.Giri B.Gobbo R.Godang P.Goldenzweig B.Golob P.Gomis P.Grace W.Gradl E.Graziani D.Greenwald C.Hadjivasiliou S.Halder K.Hara T.Hara O.Hartbrich K.Hayasaka H.Hayashii C.Hearty M.T.Hedges I.Heredia de la Cruz M.Hernández Villanueva A.Hershenhorn T.Higuchi E.C.Hill H.Hirata M.Hoek S.Hollitt T.Hotta C.-L.Hsu Y.Hu K.Huang T.Iijima K.Inami G.Inguglia J.Irakkathil Jabbar A.Ishikawa R.Itoh M.Iwasaki Y.Iwasaki S.Iwata P.Jackson W.W.Jacobs D.E.Jaffe E.-J.Jang H.B.Jeon S.Jia Y.Jin C.Joo J.Kahn H.Kakuno A.B.Kaliyar G.Karyan Y.Kato T.Kawasaki H.Kichimi C.Kiesling B.H.Kim C.-H.Kim D.Y.Kim S.-H.Kim Y.K.Kim Y.Kim T.D.Kimmel K.Kinoshita C.Kleinwort B.Knysh P.Kodyš T.Koga I.Komarov T.Konno S.Korpar D.Kotchetkov N.Kovalchuk T.M.G.Kraetzschmar P.Križan R.Kroeger J.F.Krohn P.Krokovny W.Kuehn T.Kuhr M.Kumar R.Kumar K.Kumara S.Kurz A.Kuzmin Y.-J.Kwon S.Lacaprara Y.-T.Lai C.La Licata K.Lalwani L.Lanceri J.S.Lange K.Lautenbach I.-S.Le Beihang University Beijing 100191 Brookhaven National Laboratory UptonNew York 11973 Budker Institute of Nuclear Physics SB RAS Novosibirsk 630090 Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional Mexico City 07360 Faculty of Mathematics and Physics Charles University12116 Prague Chiba University Chiba 263-8522 Consejo Nacional de Ciencia y Tecnología Mexico City 03940 Deutsches Elektronen–Synchrotron 22607 Hamburg Duke University DurhamNorth Carolina 27708 Earthquake Research Institute University of TokyoTokyo 113-0032 Forschungszentrum Jülich 52425 Jülich Department of Physics Fu Jen Catholic UniversityTaipei 24205 Key Laboratory of Nuclear Physics and Ion-beam Application(MOE)and Institute of Modern Physics Fudan UniversityShanghai 200443 II.Physikalisches Institut Georg-August-Universität Göttingen37073 Göttingen Gifu University Gifu 501-1193 The Graduate University for Advanced Studies(SOKENDAI) Hayama 240-0193 Gyeongsang National University Jinju 52828 Department of Physics and Institute of Natural Sciences Hanyang UniversitySeoul 04763 High Energy Accelerator Research Organization(KEK) Tsukuba 305-0801 J-PARC Branch KEK Theory CenterHigh Energy Accelerator Research Organization(KEK)Tsukuba 305-0801 Indian Institute of Science Education and Research Mohali SAS Nagar140306 Indian Institute of Technology Bhubaneswar Satya Nagar 751007 Indian Institute of Technology Hyderabad Telangana 502285 Indian Institute of Technology Madras Chennai 600036 Indiana University BloomingtonIndiana 47408 Institute for High Energy Physics Protvino 142281 Institute of High Energy Physics Vienna 1050 Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049 Institute of Particle Physics(Canada) VictoriaBritish Columbia V8W 2Y2 Institute of Physics Hanoi Instituto de Fisica Corpuscular Paterna 46980 INFN Laboratori Nazionali di Frascati I-00044 Frascati INFN Sezione di Napoli I-80126 Napoli INFN Sezione di Padova I-35131 Padova INFN Sezione di Perugia I-06123 Perugia

From April to July 2018,a data sample at the peak energy of the T(4 S) resonance was collected with the Belle Ⅱ detector at the SuperKEKB electron-positron *** is the first data sample of the Belle Ⅱ *** Bhabha and digamma events,we measure the integrated luminosity of the data sample to be(496.3±0.3±3.0) pb-1,where the first uncertainty is statistical and the second is *** work provides a basis for future luminosity measurements at Belle Ⅱ.

关键词： luminosity Bhabha digamma Belle II

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