Luminosities and energies of e+e- collision data taken between ■=4.61 GeV and 4.95 GeV at BESⅢ

作者：麦迪娜; M.N.Achasov; P.Adlarson; M.Albrecht; R.Aliberti; A.Amoroso; 安美儒; 安琪; 白旭红; 白羽; O.Bakina; Ferroli R.Baldini; I.Balossino; 班勇; V.Batozskaya; D.Becker; K.Begzsuren; N.Berger; M.Bertani; D.Bettoni; F.Bianchi; J.Bloms; A.Bortone; I.Boyko; R.A.Briere; A.Brueggemann; 蔡浩; 蔡啸; A.Calcaterra; 曹国富; 曹宁; S.A.Cetin; **帆; 常万玲; G.Chelkov; 陈琛; 陈超; 陈刚; 陈和生; 陈玛丽; 陈申见; 陈少敏; T.Chen; 陈旭荣; X.T.Chen; 陈元柏; 陈卓俊; 成伟帅; 初晓; G.Cibinetto; F.Cossio; 崔佳佳; 代洪亮; 代建平; A.Dbeyssi; Boer R.E.de; D.Dedovich; 邓子艳; A.Denig

来源：Chinese Physics C, 2022, 46(11): 70-81.

• luminosity
• center-of-mass energy
• BESⅢ detector

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 ■ pairs in e+e- 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.