Journal
CHINESE PHYSICS C
Volume 37, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1137/37/12/123001
Keywords
Bhabha scattering events; integrated luminosity; cross section
Categories
Funding
- Ministry of Science and Technology of China [2009CB825204]
- National Natural Science Foundation of China [10625524, 10821063, 10825524, 10835001, 10935007, 11125525, 11235011]
- Joint Funds of the National Natural Science Foundation of China [11079008, 11179007]
- Chinese Academy of Sciences Large-Scale Scientific Facility Program, CAS [KJCX2-YW-N29, KJCX2-YWN-45]
- 100 Talents Program of CAS
- German Research Foundation DFG (Collaborative Research Center) [CRC-1044]
- Istituto Nazionale di Fisica Nucleare, Italy
- Ministry of Development of Turkey [DPT2006K-120470]
- U. S. Department of Energy [DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823]
- U.S. National Science Foundation, University of Groningen (RuG)
- Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt,
- WCU Program of National Research Foundation of Korea [R32-2008-000-10155-0]
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Data sets were collected with the BESIII detector at the BEPC II collider at the center-of-mass energy of root s=3.650 GeV during May 2009 and at root 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(-1) and (2916.94 +/- 0.18 +/- 29.17) pb(-1), respectively, where the first error is statistical and the second error is systematic.
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