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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 発行・発表の年月 | 2019/10 |
| 形態種別 | その他 |
| 査読 | 査読あり |
| 標題 | Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment |
| 執筆形態 | その他 |
| 著者・共著者 | Belle II Collaboration,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 |
| 概要 | From April to July 2018, a data sample at the peak energy of the
$\Upsilon(4S)$ resonance was collected with the Belle~II detector at the SuperKEKB electron-positron collider. This is the first data sample of the Belle~II experiment. Using Bhabha and digamma events, we measure the integrated luminosity of the data sample to be ($496.3 \pm 0.3 \pm 3.0$)~pb$^{-1}$, where the first uncertainty is statistical and the second is systematic. This work provides a basis for future luminosity measurements at Belle~II. |
| DOI | 10.1088/1674-1137/44/2/021001 |