Luminosities and energies of e + e − collision data taken between =4.61 GeV and 4.95 GeV at BESIII

Abstract From December 2019 to June 2021, the BESIII experiment collected approximately 5.85 fb −1 of data at center-of-mass energies between 4.61 and 4.95 GeV. This is the highest collision energy BEPCII has reached to date. The accumulated annihilation data samples are useful for studying charmoni...

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Published in:Chinese physics C 2022-11, Vol.46 (11), p.113003
Main Authors: Amoroso, A., Bortone, A., Briere, R. A., Calcaterra, A., Chen, C., Chen, S. M., Chu, X., Dedovich, D., Denysenko, I., Destefanis, M., Dong, X., Fang, S. S., Fang, W. X., Fang, Y., Farinelli, R., Feldbauer, F., Feng, C. Q., Gong, L., Gu, Y. T., Guskov, A., Hao, X. Q., Hou, G. Y., Hu, H. M., Huang, L. Q., Janchiv, S., Ji, Y. Y., Jiang, S. S., Johansson, T., Kappert, R., Keshk, I. K., Kupsc, A., Lane, J. J., Lavezzi, L., Li, H., Li, H. J., Li, J. W., Li, L. J., Li, L. K., Li, Lei, Liang, Y. T., Lin, C. X., Liu, C. X., Liu, J. B., Liu, J. L., Liu, W. K., Liu, X., Liu, Y. B., Liu, Z. A., Luo, C. L., Luo, T., Ma, F. C., Ma, Y., Maldaner, S., Mangoni, A., Mao, Y. J., Min, T. J., Mo, X. H., Ning, Z., Nisar, S., Peng, H. P., Ping, R. G., Qi, M., Qian, W. B., Schelhaas, Y., Schoenning, K., Scodeggio, M., Shan, X. Y., Shi, B. A., Shi, H. C., Sun, W. Y., Thoren, V., Wang, D. Y., Wang, M., Wang, X. L., Wang, Y. Q., Wolke, M., Wu, J. F., Xiao, H., Xu, C. F., Xu, Y. C., Xu, Z. P., Yan, W. C., Yang, S. L., Yang, Y. X., Yu, T., Yuan, Y., Zafar, A. A., Zhang, D. H., Zhang, J. Z., Zhang, L. M., Zhang, L. Q., Zhang, X. M., Zhang, Y. H., Zhang, Yao, Zhao, Lei, Zheng, Y. H., Zhou, H., Zhou, X. Y., Zhu, L. X., Zhu, T. J.
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Language:eng
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Summary:Abstract From December 2019 to June 2021, the BESIII experiment collected approximately 5.85 fb −1 of data at center-of-mass energies between 4.61 and 4.95 GeV. This is the highest collision energy BEPCII has reached to date. The accumulated annihilation data samples are useful for studying charmonium(-like) states and charmed-hadron decays. By adopting a novel method of analyzing the production of pairs in annihilation, the center-of-mass energies are measured with a precision of 0.6 MeV. Integrated luminosities are measured with a precision of better than 1% by analyzing the events of large-angle Bhabha scattering. These measurements provide important inputs to analyses based on these data samples.
ISSN:1674-1137
0254-3052