Measurement of the integrated luminosities of the data taken by BESⅢ at √s=3.650 and 3.773 GeV

作者：麦迪娜; M.N.Achasov; O.Albayrak; D.J.Ambrose; 安芬芬; 安琪; 白景芝; R.Baldini Ferroli; 班勇; J.Becker; J.V.Bennett; M.Bertani; 边渐鸣; E.Boger; O.Bondarenko; I.Boyko; S.Braun; R.A.Briere; V.Bytev; 蔡浩; 蔡啸; O.Cakir; A.Calcaterra; 曹国富; S.A.Cetin; **帆; G.Chelkov; 陈刚; 陈和生; 陈江川; 陈玛丽; 陈申见; 陈旭荣; 陈元柏; 程和平; 初元萍; D.Cronin-Hennessy; 代洪亮; 代建平; D.Dedovich; 邓子艳; A.Denig; I.Denysenko; M.Destefanis; 丁伟民; 丁勇; 董燎原; 董明义; 杜书先; 方建; 房双世; L.Fava; 封常青; P.Friedel; 傅成栋; 傅金林; O.Fuks; 高原宁; 耿聪; K.Goetzen; 龚文煊; W.Gradl; M.Greco; 顾旻皓; 顾运厅

来源：Chinese Physics C, 2013, 37(12): 7-12.

• Bhabha scattering events
• integrated luminosity
• cross section

Data sets were collected with the BES detector at the BEPC collider at the center-of-mass energy of√s=3.650 GeV during May 2009 and at√s=3.773 GeV from January 2010 to May 2011.By analyzing the large angle Bhabha scattering events,the integrated luminosities of the two data sets are measured to be(44.49±0.02±0.44)pb 1and(2916.94±0.18±29.17)pb 1,respectively,where the first error is statistical and the second error is systematic.