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

Abstract 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.
Tags
Working group Dark Sector and Low Multiplicity
Principal authors @  Suxian Li, Chengping Shen, Xing-Yu Zhou
Reference Chin.Phys.C 44, 021001 (2020), DOI: 10.1088/1674-1137/44/2/021001
Document BELLE2-PUB-PH-2019-002
Links arXiv:1910.05365, Inspire, CHPHC
Bibtex 
@article{Belle-II:2019usr,
    author = "Abudin{\'e}n, F. and others",
    collaboration = "Belle-II",
    title = "{Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment}",
    eprint = "1910.05365",
    archivePrefix = "arXiv",
    primaryClass = "hep-ex",
    reportNumber = "Belle II Preprint 2019-001; KEK Preprint 2019-44",
    doi = "10.1088/1674-1137/44/2/021001",
    journal = "Chin. Phys. C",
    volume = "44",
    number = "2",
    pages = "021001",
    year = "2020"
}