首页|Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle Ⅱ experiment
Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle Ⅱ experiment
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NETL
NSTL
万方数据
Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle Ⅱ experiment
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 methodolo-gies involving Bhabha(e+e-→ e+e-(nγ)),digamma(e+e-→ γγ(nγ)),and dimuon(e+e-→ μ+μ-(nγ))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.
NETL
NSTL
万方数据
