Luminosities and energies of e + e − collision data taken between =4.61 GeV and 4.95 GeV at BESIII
Abstract 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 annihilation data samples are useful for studying charmoni...
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Published in: | Chinese physics C 2022-11, Vol.46 (11), p.113003 |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | eng |
Online Access: | Get full text |
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Summary: | Abstract
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
annihilation data samples are useful for studying charmonium(-like) states and charmed-hadron decays. By adopting a novel method of analyzing the production of
pairs in
annihilation, the center-of-mass energies are measured with a precision of
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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ISSN: | 1674-1137 0254-3052 |