Abstract
To study the nature of the state Y (2175), a dedicated data set of e+e- collision data was collected at the center-of-mass energy of 2.125 GeV with the BESIII detector at the BEPCII collider. By analyzing large-angle Bhabha scattering events, the integrated luminosity of this data set is determined to be 108.49±0.02±0.85 pb-1, where the first uncertainty is statistical and the second one is systematic. In addition, the center-of-mass energy of the data set is determined with radiative dimuon events to be 2126.55±0.03±0.85 MeV, where the first uncertainty is statistical and the second one is systematic.
Original language | English |
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Article number | 113001 |
Number of pages | 9 |
Journal | Chinese Physics C |
Volume | 41 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov-2017 |
Keywords
- Y(2175)
- STATE
- HYBRID
- radiative dimuon events
- center-of-mass energy
- Bhabha scattering
- luminosity