Measurements of the center-of-mass energies of e+e- collisions at BESIII

BESIII Collaboration, M. Ablikim, M.N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht, R. Aliberti, A. Amoroso, Nasser Kalantar-Nayestanaki, Rosa Kappert, Myroslav Kavatsyuk, Johan Messchendorp, Viktor Rodin

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Abstract

During the 2016-17 and 2018-19 running periods, the BESIII experiment collected 7.5 fb -1 of e+e- collision data at center-of-mass energies ranging from 4.13 to 4.44 GeV. These data samples are primarily used for the study of excited charmonium and charmoniumlike states. By analyzing the di-muon process e+e-, we measure the center-of-mass energies of the data samples with a precision of 0.6 MeV. Through a run-by-run study, we find that the center-of-mass energies were stable throughout most of the data-collection period.
Original languageEnglish
Article number103001
Number of pages10
JournalChinese Physics C
Volume45
Issue number10
DOIs
Publication statusPublished - Oct-2021

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