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 language | English |
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Article number | 103001 |
Number of pages | 10 |
Journal | Chinese Physics C |
Volume | 45 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct-2021 |