Luminosity measurements for the R scan experiment at BESIII
被引量：1
Luminosity measurements for the R scan experiment at BESIII
摘要
By analyzing the large-angle Bhabha scattering events e^＋e^- → （γ）e^＋e^- and diphoton events e^＋^e- → （γ）γγ for the data sets collected at center-of-mass （c.m.） energies between 2.2324 and 4.5900 GeV （131 energy points in total） with the upgraded Beijing Spectrometer （BESIII） at the Beijing Electron-Positron Collider （BEPCII）, the integrated luminosities have been measured at the different c.m. energies, individually. The results are important inputs for the R value and J/ψ resonance parameter measurements.
By analyzing the large-angle Bhabha scattering events e^＋e^- → （γ）e^＋e^- and diphoton events e^＋^e- → （γ）γγ for the data sets collected at center-of-mass （c.m.） energies between 2.2324 and 4.5900 GeV （131 energy points in total） with the upgraded Beijing Spectrometer （BESIII） at the Beijing Electron-Positron Collider （BEPCII）, the integrated luminosities have been measured at the different c.m. energies, individually. The results are important inputs for the R value and J/ψ resonance parameter measurements.
基金
Supported by National Key Basic Research Program of China(2015CB856700)
National Natural Science Foundation of China(NSFC)(10935007,11121092,11125525,11235011,11322544,11335008,11375170,11275189,11079030,11475164,11475169,11005109,10979095,11275211)
Chinese Academy of Sciences(CAS)Large-Scale Scientific Facility Program
Joint Large-Scale Scientific Facility Funds of the NSFC and CAS(11179007,U1232201,U1332201,U1532102).(KJCX2-YW-N29,KJCX2-YW-N45)
100 Talents Program of CAS,INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology,German Research Foundation DFG(Collaborative Research Center CRC-1044)
Istituto Nazionale di Fisica Nucleare,Italy,Ministry of Development of Turkey(DPT2006K-120470)
Russian Foundation for Basic Research(14-07-91152)
U.S.Department of Energy(DE-FG02-04ER41291,DE-FG02-05ER41374,DEFG02-94ER40823,DESC0010118)
U.S.National Science Foundation,University of Groningen(RuG)
the Helmholtzzentrum fuer Schwerionenforschung Gmb H(GSI)
Darmstadt,WCU Program of National Research Foundation of Korea(R32-2008-000-10155-0)
同被引文献4
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