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

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

Belle-II

Collaboration

Jul 1, 2024

12 pages

Published in:

Chin.Phys.C 49 (2025) 1, 013001,
Chin.Phys.C 49 (2025) 013001

Published: 2025

e-Print:

2407.00965 [hep-ex]

DOI:

10.1088/1674-1137/ad806c

Report number:

Belle II Preprint 2024-019; KEK Preprint 2024-16

Experiments:

KEK-BF-BELLE-II

View in:

ADS Abstract Service

reference search19 citations

Citations per year

Abstract: (IOP)

A series of data samples was collected with the Belle II detector at the SuperKEKB collider from March 2019 to June 2022. We determine the integrated luminosities of these data samples using three distinct methodologies involving Bhabha (

e^+e^- \to e^+e^-(n\gamma)

), digamma (

e^+e^- \to \gamma\gamma(n\gamma)

), and dimuon (

e^+e^- \to \mu^+ \mu^- (n\gamma)

) events. The 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 systematic. The resulting total integrated luminosity obtained from the combination of the three methods is (427.87 ± 2.01) fb

^{−1}

.

Note:

12 pages, 3 figures; accepted for publication in Chinese Physics C

integrated luminosity
Bhabha
digamma
dimuon
Belle II

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