Measurements of the center-of-mass energies at BESIII via the di-muon process M. Ablikim, M. N. Achasov, X. C. Ai [et.al.]
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ArticleSubject(s): BESIII, детектор | чармонийGenre/Form: статьи в журналах Online resources: Click here to access online
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Chinese physics C Vol. 40, № 6. P. 063001-1-063001-8Abstract: From 2011 to 2014, the BESIII experiment collected about 5 fb−1 data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmonium states. By analyzing the di-muon process e+e− → γISR/FSRμ+μ−, the center-of-mass energies of the data samples are measured with a precision of 0.8 MeV. The center-of-mass energy is found to be stable for most of the time during data taking.
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From 2011 to 2014, the BESIII experiment collected about 5 fb−1 data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmonium states. By analyzing the di-muon process e+e− → γISR/FSRμ+μ−, the center-of-mass energies of the data samples are measured with a precision of 0.8 MeV. The center-of-mass energy is found to be stable for most of the time during data taking.
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