Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle II experiment
Adachi, I., Aggarwal, L., Atmacan, H., Fulsom, B. G., Gabrielli, A., Ganiev, E., Garcia-Hernandez, M., Garg, R., Gaudino, G., Gaur, V., Gaz, A., Gellrich, A., Ghevondyan, G., Aushev, T., Ghosh, D., Ghumaryan, H., Giakoustidis, G., Giordano, R., Giri, A., Gironella, P., Gobbo, B., Godang, R., Gogota, O., Goldenzweig, P., Aushev, V., Gradl, W., Graziani, E., Greenwald, D., Gruberová, Z., Gu, T., Gudkova, K., Haide, I., Halder, S., Han, Y., Hara, K., Aversano, M., Hara, T., Harris, C., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., Heidelbach, A., de la Cruz, I. Heredia, Hernández Villanueva, M., Ayad, R., Higuchi, T., Hoek, M., Hohmann, M., Hoppe, R., Horak, P., Hsu, C.-L., Humair, T., Inami, K., Ipsita, N., Ishikawa, A., Babu, V., Itoh, R., Iwasaki, M., Jacobs, W. W., Jaffe, D. E., Jang, E.-J., Ji, Q. P., Jia, S., Jin, Y., Johnson, A., Joo, K. K., Bae, H., Junkerkalefeld, H., Kaleta, M., Kalita, D., Kandra, J., Kang, K. H., Karyan, G., Kawasaki, T., Keil, F., Kiesling, C., Kim, C.-H., Bahinipati, S., Kim, D. Y., Kim, J.-Y., Kim, K.-H., Kim, Y.-K., Kim, Y. J., Kindo, H., Kinoshita, K., Kodyš, P., Koga, T., Kohani, S., Bambade, P., Kojima, K., Korobov, A., Korpar, S., Kovalenko, E., Kowalewski, R., Križan, P., Krokovny, P., Kuhr, T., Kumar, R.
Abstract
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}$\pm$ 0.03 $\pm${2.61})~fb$^{-1}$, ({429.28}$\pm$ 0.03 $\pm${2.62})~fb$^{-1}$, and ({423.99}$\pm$ 0.04 $\pm${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 $\pm$ 2.01})~fb$^{-1}$.