Journal
CHINESE PHYSICS C
Volume 46, Issue 11, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1674-1137/ac84cc
Keywords
luminosity; center-of-mass energy; BESIII detector
Categories
Funding
- National Key R&D Program of China [2020YFA0406400, 2020YFA0406300]
- National Natural Science Foundation of China (NSFC) [11635010, 11735014, 11805086, 11835012, 11935015, 11935016, 11935018, 11961141012, 12022510, 12025502, 12035009, 12035013, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265]
- Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program
- Joint Large-Scale Scientific Facility Funds of the NSFC and CAS [U1832207]
- CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH040]
- 100 Talents Program of CAS
- Fundamental Research Funds for the Central Universities, Lanzhou University, University of Chinese Academy of Sciences
- Institute of Nuclear and Particle Physics (INPAC)
- Shanghai Key Laboratory for Particle Physics and Cosmology
- ERC [758462]
- European Union [894790]
- German Research Foundation DFG [443159800, CRC 1044, GRK 2149]
- Istituto Nazionale di Fisica Nucleare, Italy
- Ministry of Development of Turkey [DPT2006K-120470]
- National Science and Technology fund
- National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation [B16F640076]
- Suranaree University of Technology (SUT), Thailand Science Research and Innovation (TSRI)
- National Science Research and Innovation Fund (NSRF) [160355]
- Royal Society, UK [DH140054, DH160214]
- Swedish Research Council
- U.S. Department of Energy [DE-FG02-05ER41374]
- STFC (United Kingdom)
Ask authors/readers for more resources
From December 2019 to June 2021, the BESIII experiment collected approximately 5.85 fb(-1) of data at the highest collision energy reached by BEPCII. These data samples are useful for studying charmonium(-like) states and charmed-hadron decays.
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 e(+)e(-) annihilation data samples are useful for studying charmonium(-like) states and charmed-hadron decays. By adopting a novel method of analyzing the production of Lambda(+)(c)(Lambda) over bar (-)(c)pairs in e(+)e(-) annihilation, the center-of-mass energies are measured with a precision of similar to 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.
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