From April to July 2018, a data sample at the peak energy of the γ(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 ± 0.3 ± 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.

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

Bianchi F.;Destefanis M.;Maggiora M.;Marcello S.;Mussa R.;Spataro S.;Tamponi U.;
2020-01-01

Abstract

From April to July 2018, a data sample at the peak energy of the γ(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 ± 0.3 ± 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.
2020
44
2
021001-1
021001-12
https://iopscience.iop.org/article/10.1088/1674-1137/44/2/021001
Belle II; Bhabha; digamma; luminosity
Abudinen F.; Adachi I.; Ahlburg P.; Aihara H.; Akopov N.; Aloisio A.; Ameli F.; Andricek L.; Anh Ky N.; Asner D.M.; Atmacan H.; Aushev T.; Aushev V.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1804667
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